EP2301716A1 - Finishing system with workpiece and finishing belt and method for finishing a workpiece - Google Patents

Finishing system with workpiece and finishing belt and method for finishing a workpiece Download PDF

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Publication number
EP2301716A1
EP2301716A1 EP09012056A EP09012056A EP2301716A1 EP 2301716 A1 EP2301716 A1 EP 2301716A1 EP 09012056 A EP09012056 A EP 09012056A EP 09012056 A EP09012056 A EP 09012056A EP 2301716 A1 EP2301716 A1 EP 2301716A1
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EP
European Patent Office
Prior art keywords
finishing
workpiece
belt
recess
transport direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09012056A
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German (de)
French (fr)
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EP2301716B1 (en
Inventor
Erich Schillinger
Christof Weber
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Supfina Grieshaber GmbH and Co KG
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Supfina Grieshaber GmbH and Co KG
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Priority to EP20090012056 priority Critical patent/EP2301716B1/en
Publication of EP2301716A1 publication Critical patent/EP2301716A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • 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
    • 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
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
    • 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
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/008—Finishing manufactured abrasive sheets, e.g. cutting, deforming

Definitions

  • the invention relates to a finishing system comprising a workpiece and a finishing belt, wherein the workpiece has a workpiece axis and at least one to be machined, with respect to the workpiece axis radially outwardly facing surface portion which is spaced along this over a cover width radially outwardly from a covering portion of the workpiece is such that an undercut area is formed between the overlap portion and the surface portion.
  • finishing machining of the surface portion which is arranged in an undercut area and covered by a covering portion of the workpiece, is not possible or requires a considerable, wear-intensive curvature of the finishing tape.
  • finishing tapes with straight-line lateral delimitation finishing tapes, which have a serrated or wavy lateral boundary.
  • These finishing tapes have the advantage that the serrated or wavy lateral areas of the finishing tape can cling relatively low in tension to be machined radii.
  • these finishing tapes are not suitable for use in a finish system mentioned above, if a surface treatment in an undercut area is desired.
  • the object of the present invention is to provide a finishing system which permits the simplest possible machining of a surface section of the workpiece arranged in an undercut region.
  • a lateral edge of the finishing tape comprises at least one recess into which the overlapping portion of the workpiece along the overlap width inserted or introduced, and that seen in a transport direction of the finishing tape to the Recess adjacent trim band section can be introduced or introduced into the undercut region and brought or brought into operative contact with the surface section to be machined.
  • the finishing system according to the invention makes it possible to insert the overlapping portion of the workpiece into the recess of the lateral edge of the finishing strip and to introduce a finishing band portion adjacent to the recess into the undercut area and bring it into operative contact with the surface portion to be machined.
  • the finishing belt section which is in operative contact with the surface section to be machined can in this way be applied flatly to the workpiece and does not have to be curved around the transport direction of the finishing belt, as in the case of straight or wavy or jagged fining finishing belts. Due to the flat contact of the finishing belt section on the workpiece, high surface qualities are achieved on the one hand even in the surface section covered in the undercut region.
  • the finishing system according to the invention allows a particularly gentle handling of the finishing tape, which can be performed at least largely kinking and stress-free.
  • the recess is dimensioned such that, as seen in the overlapping width of the overlapping portion, this can be completely inserted into the recess, so that a machining of the surface portion up to a lateral boundary of the
  • Undercut area can be done.
  • the at least one recess has mutually spaced recess boundaries, which are each oriented transversely to the transport direction of the finishing tape, wherein the Aussparungungsbegrenzungen have a distance from each other, which is greater than a measured in the transport direction of the finishing tape thickness of the cover portion, so that the finishing belt is movable in the transporting direction when the overlapping portion is inserted into the recess.
  • the Aussparungungsbegrenzungen have a distance from each other, which is greater than a measured in the transport direction of the finishing tape thickness of the cover portion, so that the finishing belt is movable in the transporting direction when the overlapping portion is inserted into the recess.
  • This also has the advantage that, during a finishing operation, various portions of the finish belt section may engage the workpiece to remove worn portions of the finish belt from the workpiece and bring fresh portions of the finish belt into operative contact with the workpiece.
  • the at least one recess can have straight-line or curved recess boundaries.
  • the Aussparungsbegrenzonne can also merge into each other continuously.
  • the surface portion of the workpiece to be machined is an annular surface portion, so that a relative movement between the workpiece and the finishing belt is made possible in particular by a rotation of the workpiece about the workpiece axis.
  • the overlapping portion is annular or ring segment-shaped and preferably arranged coaxially to the machined surface portion. This results in an undercut area, which is rotationally symmetrical with respect to the workpiece axis of the workpiece.
  • the finishing belt has at least two consecutive, mutually separate recesses, viewed in the transport direction of the finishing belt, and if different regions of the overlapping section can be inserted into different recesses or are inserted in different recesses. This makes it possible to provide a supply of fresh finishing tape in spaces radially outside the covering portion, to supply this to the surface portion to be processed and to collect used finishing tape radially outside the covering portion.
  • At least one pressing element is provided for pressing the finishing strip against the surface section to be processed, and that a depth measured in the pressing direction and a measured height of the pressing element measured in the transport direction of the finishing tape are dimensioned so low that the pressure element at least along part of its width in the undercut area is plunged. In this way it is possible, even in the region of the undercut, to press the finishing belt in a reliable manner against the surface section to be processed, without the pressure element colliding with the covering section of the workpiece.
  • the invention further relates to a method for finish machining a workpiece by means of a finishing strip, wherein the workpiece has a workpiece axis and at least one to be machined, with respect to the workpiece axis radially outwardly facing surface portion which is spaced to this radially outwardly overlapped by a cover portion of the workpiece is such that an undercut area is formed between the overlap portion and the surface portion.
  • the present invention is based on the further object of providing a method for finishing machining a workpiece by means of a finishing strip, which permits the simplest possible machining of a surface section of the workpiece arranged in an undercut region.
  • a lateral edge of the finishing tape comprises at least one recess into which the overlapping portion of the workpiece along the overlap width is introduced, and that in a transport direction of the finishing tape to the recess adjacent finishing tape section in introduced the undercut area and brought into operative contact with the surface to be processed portion.
  • the pressure element and / or the finishing belt is driven to oscillate in a direction transverse to the transport direction of the finishing belt.
  • the oscillatory movement or the oscillatory movements are preferably superimposed on a relative movement which arises as a result of rotation of the workpiece about the workpiece axis. By superimposing several relative movements particularly high surface qualities can be achieved.
  • the invention further relates to the use of a finishing system described in the introduction for use in a method described above.
  • FIG. 1 In the FIG. 1 is shown in total provided with the reference numeral 10 workpiece.
  • the workpiece 10 is rotationally symmetrical and has a central workpiece axis 12.
  • the workpiece 10 may be formed in particular as a casting or as a formed part.
  • the workpiece 10 has an annular surface 14 that points radially outwardly with respect to the workpiece axis 12.
  • the surface 14 is in particular cylinder jacket-shaped.
  • the surface 14 includes a surface portion 16 which is radially outwardly covered by a cover portion 18 of the workpiece 10.
  • the overlapping portion 18 and the surface portion 16 are spaced apart from each other so that an undercut 20 is formed between the surface portion 16 and the overlapping portion 18.
  • the overlay portion 18 covers the surface portion 16 with a overlap width 22 that extends from a free end 24 of the overlay portion 18 to an undercut boundary surface 26 of an undercut boundary 28.
  • the surface section 16 arranged in the undercut region 20 comprises a radially outwardly curved annular section 16a, which can also be finish-machined in the course of the finishing machining of the surface 16 described below.
  • FIG. 2 a top view of a finishing tape 30 is shown.
  • the finishing tape 30 extends along a finish tape longitudinal axis 32 along which the finishing tape 30 in a transport direction 34 and / or a transport direction 36 opposite thereto is movable.
  • the finishing tape 30 has a known layer structure with a carrier layer and with an abrasive layer.
  • the finishing belt 30 has a first, straight-line lateral boundary 38, which extends parallel to the finishing belt longitudinal axis 32.
  • the finishing belt 30 also has a second boundary 40.
  • successive recesses 42, 44 are provided in the transport direction 34 or 36.
  • Each mutually adjacent recesses 42, 44 define in the transport direction 34 or 36 seen a finishing belt section 46th
  • the recesses 42, 44 have the effect that a finish belt width 48 measured perpendicular to the finish belt longitudinal axis 32 at the level of the finish belt section 46 is greater than a finish belt width 50 measured perpendicular to the finish belt longitudinal axis 32 at the level of a recess 42, 44. It is preferred that the finish belt width 48 exceeds the finish band width 50 at least by the overlap width 22 of the workpiece 10.
  • the recesses 42, 44 have in the transport direction 34 or 36 of the finishing tape 30 successive recess boundaries 52, 54, which have a distance 56 from each other.
  • the distance 56 it is preferable for the distance 56 to be at least as great as a thickness 58 of the covering section 18 measured in the transport direction 34 or 36 of the finishing strip 30.
  • the distance 56 is greater than the thickness 58 also be measured in radial direction to the workpiece axis 12.
  • the recesses 42, 44 may, as shown in the drawing, be limited in a straight line. However, it is also possible that the recesses 42, 44 have curved boundaries and in particular are U-shaped limited.
  • the boundary 38 opposite the second boundary 40 also comprises recesses, which in FIG. 2 shown with dashed lines and designated by reference numerals 60, 62.
  • recesses which are arranged in the region of mutually opposite borders 38, 40, are arranged at the same height with respect to the finishing tape longitudinal axis 32.
  • the recesses 42 and 60 are arranged at the same height and the recesses 44 and 62.
  • a finishing system 64 that includes a workpiece 10 described above and a finishing belt 30 described above.
  • the finish system 64 includes a finish belt stocker 66 for fresh finishing tape and a finishing belt collector 68 for spent finishing tape.
  • the finishing belt 30 can be unwound from the finishing belt 66 and can be wound onto the finishing belt collector 68.
  • the finish system 64 further includes a pressing member 70 which serves to press the finishing tape 30 against the surface 14.
  • the pressing element 70 serves for pressing a finishing belt section 46 arranged between two recesses 42, 44 against the surface section 16 of the workpiece 10.
  • the pressing element 70 has a depth 74 measured in a pressing direction 72 and a height 76 measured in the transport direction 34, 36 of the finishing strip 30. Furthermore, the pressing element 70 has a width 78, which is measured in parallel to the workpiece axis 12 direction.
  • the overall depth 74 and the overall height 76 are so low that the pressing element 70 can be immersed along a part of its width 78 in the undercut area 20 arranged between the surface section 16 and the covering section 18.
  • the measured at the level of the finishing belt portion 46 finishing belt width 48 also corresponds to the width 78 of the pressing member 70.
  • the finishing belt is unwound from the finishing belt supply 66 and fed in the direction of the workpiece 10.
  • a first recess 42 is so arranged that a first portion 80 of the overlap portion is inserted into a first recess 42 and a second portion 82 of the overlap portion 18 in a second recess 44.
  • a finishing belt section 46 arranged between the recesses 42, 44 is arranged in the undercut region 20 of the workpiece 10.
  • the finishing belt 30 is fed to the finishing belt collector 68.
  • the pressing member 70 is pressed against the carrier layer of the finishing tape 30, so that the abrasive layer of the finishing tape 30 comes into operative contact with the surface 14 and with the surface portion 16.
  • the pressure element 70 is immersed in a direction parallel to the workpiece axis 12 proportionately in the undercut portion 20.
  • the workpiece 10 is driven in rotation and the surface 14 machined with the surface portion 16 finishing.
  • the finishing belt 30 With sufficient generous dimensioning of the distance 56 between successive Aussparungsbegrenzungen 52, 54 of a recess 42, 44, it is possible to move the finishing belt 30 in the transport direction 34 or 36, wherein the cover portion 18 is inserted into the recesses 42, 44.
  • the rotating movement of the workpiece 10 can be superimposed with an oscillating movement of the pressing element 70 and / or the finishing strip 30 in a direction parallel to the workpiece axis 12 in order to be able to achieve particularly high surface qualities.
  • the pressing element 70 is moved parallel to the workpiece axis 12, so that it emerges from the undercut area 20. Subsequently, the workpiece 10 can be removed from the workpiece holder. To prepare a further finishing operation, it is advantageous if the finishing belt 30 is moved by a feed rate which corresponds to the distance between two successive recesses 42, 44. As a result, a fresh finishing belt section 46 is available, with which a further workpiece 10 can be machined.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The system (64) has a finishing belt (30) including a lateral boundary with an opening (44), where a covering section (18) of a workpiece (10) is guided into the opening along a covering width. A finishing belt section (46) lies adjacent to the opening when viewed in transport directions of the belt and is guided into an undercut region (20). The belt section is brought into active contact with a surface section to be processed. The surface section is radially outwardly covered by the covering section so that the undercut region is formed between the covering section and the surface section. An independent claim is also included for a method for finishing processing of a workpiece by a finishing belt.

Description

Die Erfindung betrifft ein Finishsystem umfassend ein Werkstück und ein Finishband, wobei das Werkstück eine Werkstückachse aufweist und mindestens einen zu bearbeitenden, bezogen auf die Werkstückachse nach radial außen weisenden Oberflächenabschnitt, welcher zu diesem beabstandet entlang einer Überdeckungsbreite nach radial außen von einem Überdeckungsabschnitt des Werkstücks überdeckt ist, so dass zwischen dem Überdeckungsabschnitt und dem Oberflächenabschnitt ein Hinterschnittbereich entsteht.The invention relates to a finishing system comprising a workpiece and a finishing belt, wherein the workpiece has a workpiece axis and at least one to be machined, with respect to the workpiece axis radially outwardly facing surface portion which is spaced along this over a cover width radially outwardly from a covering portion of the workpiece is such that an undercut area is formed between the overlap portion and the surface portion.

Bei einem Finishsystem der eingangs genannten Art wird üblicherweise ein Finishband gegen einen zu bearbeitendenIn a finishing system of the type mentioned in the beginning, usually a finishing belt is to be worked against

Oberflächenabschnitt gedrückt, so dass eine abrasiv wirkende Schicht des Finishbands den Oberflächenabschnitt finishend bearbeitet. Hierbei werden Oberflächenqualitäten erzielt, welche sehr hohen Ansprüchen genügen. Solche erhöhten Anforderungen bestehen beispielsweise bei der Bearbeitung von Hauptlagern und Pleuellagern einer Kurbelwelle.Surface section pressed so that an abrasive layer of the finishing tape machined finish the surface portion. This surface qualities are achieved, which meet very high standards. Such increased demands exist, for example, in the machining of main bearings and connecting rod bearings of a crankshaft.

Bei einem Finishsystem der eingangs genannten Art besteht das Problem, dass eine finishende Bearbeitung des Oberflächenabschnitts, welcher in einem Hinterschnittbereich angeordnet und von einem Überdeckungsabschnitt des Werkstücks überdeckt ist, nicht möglich ist oder eine erhebliche, verschleißintensive Krümmung des Finishbands erfordert.In a finishing system of the aforementioned type, there is the problem that finishing machining of the surface portion, which is arranged in an undercut area and covered by a covering portion of the workpiece, is not possible or requires a considerable, wear-intensive curvature of the finishing tape.

Aus der US 7,169,028 B1 ist es bekannt, anstelle von Finishbändern mit gradliniger seitlicher Begrenzung Finishbänder zu verwenden, welche eine gezackte oder gewellte seitliche Begrenzung aufweisen. Diese Finishbänder haben den Vorteil, dass sich die gezackten oder gewellten seitlichen Bereiche des Finishbands relativ verspannungsarm an zu bearbeitende Radien anschmiegen können. Jedoch eignen sich auch diese Finishbänder nicht für den Einsatz bei einem eingangs genannten Finishsystem, wenn eine Oberflächenbearbeitung in einem Hinterschnittbereich gewünscht ist.From the US Pat. No. 7,169,028 B1 It is known to use, instead of finishing tapes with straight-line lateral delimitation finishing tapes, which have a serrated or wavy lateral boundary. These finishing tapes have the advantage that the serrated or wavy lateral areas of the finishing tape can cling relatively low in tension to be machined radii. However, these finishing tapes are not suitable for use in a finish system mentioned above, if a surface treatment in an undercut area is desired.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein Finishsystem zu schaffen, welches eine möglichst einfache Bearbeitung eines in einem Hinterschnittbereich angeordneten Oberflächenabschnitts des Werkstücks erlaubt.Proceeding from this, the object of the present invention is to provide a finishing system which permits the simplest possible machining of a surface section of the workpiece arranged in an undercut region.

Diese Aufgabe wird bei einem Finishsystem der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass eine seitliche Berandung des Finishbands mindestens eine Aussparung umfasst, in welche der Überdeckungsabschnitt des Werkstücks entlang der Überdeckungsbreite einführbar oder eingeführt ist, und dass ein in einer Transportrichtung des Finishbands gesehen zu der Aussparung benachbarter Finishbandabschnitt in den Hinterschnittbereich einführbar oder eingeführt und in Wirkkontakt mit dem zu bearbeitenden Oberflächenabschnitt bringbar oder gebracht ist.This object is achieved according to the invention in a finishing system of the type mentioned above in that a lateral edge of the finishing tape comprises at least one recess into which the overlapping portion of the workpiece along the overlap width inserted or introduced, and that seen in a transport direction of the finishing tape to the Recess adjacent trim band section can be introduced or introduced into the undercut region and brought or brought into operative contact with the surface section to be machined.

Das erfindungsgemäße Finishsystem ermöglicht es, den Überdeckungsabschnitt des Werkstücks in die Aussparung der seitlichen Berandung des Finishbands einzuführen und einen zu der Aussparung benachbarten Finishbandabschnitt in den Hinterschnittbereich einzuführen und in Wirkkontakt mit dem zu bearbeitenden Oberflächenabschnitt zu bringen. Der mit dem zu bearbeitenden Oberflächenabschnitt in Wirkkontakt stehende Finishbandabschnitt kann auf diese Weise flächig an das Werkstück angelegt werden und muss nicht, wie bei gradlinig oder gewellt oder zackig begrenzten Finishbändern, um die Transportrichtung des Finishbands herum gekrümmt werden. Durch die flächige Anlage des Finishbandabschnitts an dem Werkstück werden zum einen auch in dem im Hinterschnittbereich überdeckten Oberflächenabschnitt hohe Oberflächengüten erzielt. Zum anderen ermöglicht das erfindungsgemäße Finishsystem einen besonders schonenden Umgang mit dem Finishband, welches zumindest weitestgehend knick- und spannungsfrei geführt werden kann.The finishing system according to the invention makes it possible to insert the overlapping portion of the workpiece into the recess of the lateral edge of the finishing strip and to introduce a finishing band portion adjacent to the recess into the undercut area and bring it into operative contact with the surface portion to be machined. The finishing belt section which is in operative contact with the surface section to be machined can in this way be applied flatly to the workpiece and does not have to be curved around the transport direction of the finishing belt, as in the case of straight or wavy or jagged fining finishing belts. Due to the flat contact of the finishing belt section on the workpiece, high surface qualities are achieved on the one hand even in the surface section covered in the undercut region. On the other hand, the finishing system according to the invention allows a particularly gentle handling of the finishing tape, which can be performed at least largely kinking and stress-free.

Vorzugsweise ist die Aussparung derart bemessen, dass, in Überdeckungsbreite des Überdeckungsabschnitts gesehen, dieser vollständig in die Aussparung eingeführt werden kann, so dass eine Bearbeitung des Oberflächenabschnitts bis hin zu einer seitlichen Begrenzung desPreferably, the recess is dimensioned such that, as seen in the overlapping width of the overlapping portion, this can be completely inserted into the recess, so that a machining of the surface portion up to a lateral boundary of the

Hinterschnittbereichs erfolgen kann.Undercut area can be done.

Bevorzugt ist es ferner, dass die mindestens eine Aussparung zueinander beabstandete Aussparungsbegrenzungen aufweist, welche jeweils quer zu der Transportrichtung des Finishbands orientiert sind, wobei die Aussparungsbegrenzungen einen Abstand zueinander aufweisen, der größer ist als eine in Transportrichtung des Finishbands gemessene Dicke des Überdeckungsabschnitts, so dass das Finishband in Transportrichtung bewegbar ist, wenn der Überdeckungsabschnitt in die Aussparung eingeführt ist. Auf diese Weise ist es möglich, einer Relativbewegung zwischen dem Werkstück und dem Finishband, welche beispielsweise durch Rotation des Werkstücks erreicht wird, eine weitere Relativbewegung zu überlagern. Dies hat auch den Vorteil, dass während eines Finishvorgangs verschiedene Bereiche des Finishbandabschnitts in Eingriff mit dem Werkstück gelangen können, um abgenutzte Bereiche des Finishbands von dem Werkstück zu entfernen und frische Bereiche des Finishbands in Wirkkontakt mit dem Werkstück zu bringen.It is further preferred that the at least one recess has mutually spaced recess boundaries, which are each oriented transversely to the transport direction of the finishing tape, wherein the Aussparungungsbegrenzungen have a distance from each other, which is greater than a measured in the transport direction of the finishing tape thickness of the cover portion, so that the finishing belt is movable in the transporting direction when the overlapping portion is inserted into the recess. In this way it is possible to superimpose a relative movement between the workpiece and the finishing belt, which is achieved for example by rotation of the workpiece, a further relative movement. This also has the advantage that, during a finishing operation, various portions of the finish belt section may engage the workpiece to remove worn portions of the finish belt from the workpiece and bring fresh portions of the finish belt into operative contact with the workpiece.

Die mindestens eine Aussparung kann gradlinige oder gekrümmte Aussparungsbegrenzungen aufweisen. Die Aussparungsbegrenzungen können auch kontinuierlich ineinander übergehen.The at least one recess can have straight-line or curved recess boundaries. The Aussparungsbegrenzungen can also merge into each other continuously.

Vorzugsweise handelt es sich bei dem zu bearbeitenden Oberflächenabschnitt des Werkstücks um einen ringförmigen Oberflächenabschnitt, so dass eine Relativbewegung zwischen dem Werkstück und dem Finishband insbesondere durch eine Rotation des Werkstücks um die Werkstückachse ermöglicht wird.Preferably, the surface portion of the workpiece to be machined is an annular surface portion, so that a relative movement between the workpiece and the finishing belt is made possible in particular by a rotation of the workpiece about the workpiece axis.

Nach einer Ausgestaltung der Erfindung ist der Überdeckungsabschnitt ring- oder ringsegmentförmig und vorzugsweise koaxial zu dem bearbeitenden Oberflächenabschnitt angeordnet. Hierdurch entsteht ein Hinterschnittbereich, welcher bezogen auf die Werkstückachse des Werkstücks rotationssymmetrisch ist.According to one embodiment of the invention, the overlapping portion is annular or ring segment-shaped and preferably arranged coaxially to the machined surface portion. This results in an undercut area, which is rotationally symmetrical with respect to the workpiece axis of the workpiece.

Besonders bevorzugt ist es, wenn das Finishband mindestens zwei in Transportrichtung des Finishbands gesehen aufeinanderfolgende, voneinander getrennte Aussparungen aufweist und wenn unterschiedliche Bereiche des Überdeckungsabschnitts in unterschiedliche Aussparungen einführbar sind oder in unterschiedlichen Aussparungen eingeführt sind. Dies ermöglicht es, in Räumen radial außerhalb des Überdeckungsabschnitts einen Vorrat für frisches Finishband vorzuhalten, dieses dem zu bearbeitenden Oberflächenabschnitt zuzuführen und verbrauchtes Finishband radial außerhalb des Überdeckungsabschnitts zu sammeln.It is particularly preferred if the finishing belt has at least two consecutive, mutually separate recesses, viewed in the transport direction of the finishing belt, and if different regions of the overlapping section can be inserted into different recesses or are inserted in different recesses. This makes it possible to provide a supply of fresh finishing tape in spaces radially outside the covering portion, to supply this to the surface portion to be processed and to collect used finishing tape radially outside the covering portion.

Bei einer bevorzugten Ausführungsform des Finishsystems ist vorgesehen, dass mindestens ein Andrückelement zum Andrücken des Finishbands gegen den zu bearbeitenden Oberflächenabschnitt vorgesehen ist, und dass eine in Andrückrichtung gemessene Bautiefe und eine in Transportrichtung des Finishbands gemessene Bauhöhe des Andrückelements so niedrig bemessen sind, dass das Andrückelement zumindest entlang eines Teils seiner Baubreite in den Hinterschnittbereich eintauchbar ist. Auf diese Weise ist es möglich, auch im Bereich des Hinterschnitts das Finishband in zuverlässiger Weise gegen den zu bearbeitenden Oberflächenabschnitt zu drücken, ohne dass das Andrückelement mit dem Überdeckungsabschnitt des Werkstücks kollidiert.In a preferred embodiment of the finishing system, it is provided that at least one pressing element is provided for pressing the finishing strip against the surface section to be processed, and that a depth measured in the pressing direction and a measured height of the pressing element measured in the transport direction of the finishing tape are dimensioned so low that the pressure element at least along part of its width in the undercut area is plunged. In this way it is possible, even in the region of the undercut, to press the finishing belt in a reliable manner against the surface section to be processed, without the pressure element colliding with the covering section of the workpiece.

Die Erfindung betrifft ferner ein Verfahren zur finishenden Bearbeitung eines Werkstücks mittels eines Finishbands, wobei das Werkstück eine Werkstückachse aufweist und mindestens einen zu bearbeitenden, bezogen auf die Werkstückachse nach radial außen weisenden Oberflächenabschnitt, welcher zu diesem beabstandet nach radial außen von einem Überdeckungsabschnitt des Werkstücks überdeckt ist, so dass zwischen dem Überdeckungsabschnitt und dem Oberflächenabschnitt ein Hinterschnittbereich entsteht.The invention further relates to a method for finish machining a workpiece by means of a finishing strip, wherein the workpiece has a workpiece axis and at least one to be machined, with respect to the workpiece axis radially outwardly facing surface portion which is spaced to this radially outwardly overlapped by a cover portion of the workpiece is such that an undercut area is formed between the overlap portion and the surface portion.

Der vorliegenden Erfindung liegt die weitere Aufgabe zugrunde, ein Verfahren zur finishenden Bearbeitung eines Werkstücks mittels eines Finishbands zu schaffen, welches eine möglichst einfache Bearbeitung eines in einem Hinterschnittbereich angeordneten Oberflächenabschnitts des Werkstücks erlaubt.The present invention is based on the further object of providing a method for finishing machining a workpiece by means of a finishing strip, which permits the simplest possible machining of a surface section of the workpiece arranged in an undercut region.

Diese Aufgabe wird bei einem vorstehend genannten Verfahren erfindungsgemäß dadurch gelöst, dass eine seitliche Berandung des Finishbands mindestens eine Aussparung umfasst, in welche der Überdeckungsabschnitt des Werkstücks entlang der Überdeckungsbreite eingeführt wird, und dass ein in einer Transportrichtung des Finishbands gesehen zu der Aussparung benachbarter Finishbandabschnitt in den Hinterschnittbereich eingeführt und in Wirkkontakt mit dem zu bearbeitenden Oberflächenabschnitt gebracht wird.This object is achieved in a method mentioned above according to the invention in that a lateral edge of the finishing tape comprises at least one recess into which the overlapping portion of the workpiece along the overlap width is introduced, and that in a transport direction of the finishing tape to the recess adjacent finishing tape section in introduced the undercut area and brought into operative contact with the surface to be processed portion.

Ausgestaltungen und Vorteile des erfindungsgemäßen Verfahrens sind zum Teil bereits vorstehend im Zusammenhang mit den Ausgestaltungen und Vorteilen des erfindungsgemäßen Finishsystems erläutert worden. Daher wird im Folgenden lediglich auf diejenigen Ausgestaltungen und Vorteile eingegangen, die vorstehend noch nicht erläutert wurden. Nach einer Ausführungsform des Verfahrens ist vorgesehen, dass das Andrückelement und/oder das Finishband in einer Richtung quer zu der Transportrichtung des Finishbands oszillierend angetrieben wird. Die Oszillationsbewegung oder die Oszillationsbewegungen sind vorzugsweise einer Relativbewegung überlagert, welche durch Rotation des Werkstücks um die Werkstückachse entsteht. Durch die Überlagerung mehrerer Relativbewegungen können besonders hohe Oberflächenqualitäten erzielt werden.Embodiments and advantages of the method according to the invention have in part already been explained above in connection with the refinements and advantages of the finishing system according to the invention. Therefore, in the following only those embodiments and advantages will be discussed, which have not been explained above. According to one embodiment of the method, it is provided that the pressure element and / or the finishing belt is driven to oscillate in a direction transverse to the transport direction of the finishing belt. The oscillatory movement or the oscillatory movements are preferably superimposed on a relative movement which arises as a result of rotation of the workpiece about the workpiece axis. By superimposing several relative movements particularly high surface qualities can be achieved.

Die Erfindung betrifft ferner die Verwendung eines eingangs beschriebenen Finishsystems zur Verwendung bei einem vorstehend beschriebenen Verfahren.The invention further relates to the use of a finishing system described in the introduction for use in a method described above.

Weitere Merkmale und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung und der zeichnerischen Darstellung eines bevorzugten Ausführungsbeispiels.Further features and advantages of the invention are the subject of the following description and the diagrammatic representation of a preferred embodiment.

In den Zeichnungen zeigen:

Figur 1
einen Längsschnitt durch ein Werkstück einer Ausführungsform eines Finishsystems;
Figur 2
eine Draufsicht auf ein Finishband des Finishsystems;
Figur 3
eine erste perspektivische Ansicht des Finishsystems; und
Figur 4
eine weitere perspektivische Ansicht des Finishsystems.
In the drawings show:
FIG. 1
a longitudinal section through a workpiece of an embodiment of a finishing system;
FIG. 2
a plan view of a finishing tape of the finishing system;
FIG. 3
a first perspective view of the finishing system; and
FIG. 4
another perspective view of the finish system.

In der Figur 1 ist insgesamt mit dem Bezugszeichen 10 versehenes Werkstück dargestellt. Das Werkstück 10 ist rotationssymmetrisch und weist eine zentrale Werkstückachse 12 auf.In the FIG. 1 is shown in total provided with the reference numeral 10 workpiece. The workpiece 10 is rotationally symmetrical and has a central workpiece axis 12.

Das Werkstück 10 kann insbesondere als Gussteil oder als Umformteil ausgebildet sein.The workpiece 10 may be formed in particular as a casting or as a formed part.

Das Werkstück 10 weist eine bezogen auf die Werkstückachse 12 nach radial außen weisende, ringförmige Oberfläche 14 auf. Die Oberfläche 14 ist insbesondere zylindermantelförmig. Die Oberfläche 14 umfasst einen Oberflächenabschnitt 16, welcher nach radial außen von einem Überdeckungsabschnitt 18 des Werkstücks 10 überdeckt ist. Der Überdeckungsabschnitt 18 und der Oberflächenabschnitt 16 sind zueinander beabstandet, so dass zwischen dem Oberflächenabschnitt 16 und dem Überdeckungsabschnitt 18 ein Hinterschnitt 20 entsteht.The workpiece 10 has an annular surface 14 that points radially outwardly with respect to the workpiece axis 12. The surface 14 is in particular cylinder jacket-shaped. The surface 14 includes a surface portion 16 which is radially outwardly covered by a cover portion 18 of the workpiece 10. The overlapping portion 18 and the surface portion 16 are spaced apart from each other so that an undercut 20 is formed between the surface portion 16 and the overlapping portion 18.

Der Überdeckungsabschnitt 18 überdeckt den Oberflächenabschnitt 16 mit einer Überdeckungsbreite 22, welche von einem freien Ende 24 des Überdeckungsabschnitts 18 bis zu einer Hinterschnittbegrenzungsfläche 26 einer Hinterschnittbegrenzung 28 reicht.The overlay portion 18 covers the surface portion 16 with a overlap width 22 that extends from a free end 24 of the overlay portion 18 to an undercut boundary surface 26 of an undercut boundary 28.

Bei dem in der Zeichnung dargestellten Ausführungsbeispiel des Werkstücks 10 ist vorgesehen, dass der in dem Hinterschnittbereich 20 angeordnete Oberflächenabschnitt 16 einen nach radial außen gekrümmten Ringabschnitt 16a umfasst, welcher im Zuge der nachfolgend beschriebenen, finishenden Bearbeitung der Oberfläche 16 ebenfalls finishend bearbeitbar ist.In the exemplary embodiment of the workpiece 10 shown in the drawing, it is provided that the surface section 16 arranged in the undercut region 20 comprises a radially outwardly curved annular section 16a, which can also be finish-machined in the course of the finishing machining of the surface 16 described below.

In Figur 2 ist eine Draufsicht eines Finishbands 30 dargestellt. Das Finishband 30 erstreckt sich entlang einer Finishbandlängsachse 32, entlang welcher das Finishband 30 in einer Transportrichtung 34 und/oder einer hierzu entgegengesetzten Transportrichtung 36 bewegbar ist.In FIG. 2 a top view of a finishing tape 30 is shown. The finishing tape 30 extends along a finish tape longitudinal axis 32 along which the finishing tape 30 in a transport direction 34 and / or a transport direction 36 opposite thereto is movable.

Das Finishband 30 weist einen an sich bekannten Schichtaufbau mit einer Trägerschicht und mit einer Abrasivschicht auf.The finishing tape 30 has a known layer structure with a carrier layer and with an abrasive layer.

Das Finishband 30 weist eine erste, gradlinige seitliche Berandung 38 auf, welche sich parallel zu der Finishbandlängsachse 32 erstreckt.The finishing belt 30 has a first, straight-line lateral boundary 38, which extends parallel to the finishing belt longitudinal axis 32.

Das Finishband 30 weist ferner eine zweite Berandung 40 auf. In der Berandung 40 sind in Transportrichtung 34 oder 36 einander folgende Aussparungen 42, 44 vorgesehen. Jeweils zueinander benachbarte Aussparungen 42, 44 begrenzen in Transportrichtung 34 oder 36 gesehen einen Finishbandabschnitt 46.The finishing belt 30 also has a second boundary 40. In the boundary 40, successive recesses 42, 44 are provided in the transport direction 34 or 36. Each mutually adjacent recesses 42, 44 define in the transport direction 34 or 36 seen a finishing belt section 46th

Die Aussparungen 42, 44 bewirken, dass eine senkrecht zu der Finishbandlängsachse 32 gemessene Finishbandbreite 48 auf Höhe des Finishbandabschnitts 46 größer ist als eine senkrecht zu der Finishbandlängsachse 32 gemessene Finishbandbreite 50 auf Höhe einer Aussparung 42, 44. Dabei ist es bevorzugt, dass die Finishbandbreite 48 die Finishbandbreite 50 mindestens um die Überdeckungsbreite 22 des Werkstücks 10 übertrifft.The recesses 42, 44 have the effect that a finish belt width 48 measured perpendicular to the finish belt longitudinal axis 32 at the level of the finish belt section 46 is greater than a finish belt width 50 measured perpendicular to the finish belt longitudinal axis 32 at the level of a recess 42, 44. It is preferred that the finish belt width 48 exceeds the finish band width 50 at least by the overlap width 22 of the workpiece 10.

Die Aussparungen 42, 44 weisen in Transportrichtung 34 oder 36 des Finishbands 30 aufeinander folgende Aussparungsbegrenzungen 52, 54 auf, welche einen Abstand 56 voneinander aufweisen. Bevorzugt ist es hierbei, dass der Abstand 56 mindestens so groß ist, wie eine in Transportrichtung 34 oder 36 des Finishbands 30 gemessene Dicke 58 des Überdeckungsabschnitts 18. Insbesondere ist der Abstand 56 größer als die Dicke 58. Die Dicke 58 kann auch in zu der Werkstückachse 12 radialer Richtung gemessen werden.The recesses 42, 44 have in the transport direction 34 or 36 of the finishing tape 30 successive recess boundaries 52, 54, which have a distance 56 from each other. In this case, it is preferable for the distance 56 to be at least as great as a thickness 58 of the covering section 18 measured in the transport direction 34 or 36 of the finishing strip 30. In particular, the distance 56 is greater than the thickness 58 also be measured in radial direction to the workpiece axis 12.

Die Aussparungen 42, 44 können, wie in der Zeichnung dargestellt, gradlinig begrenzt sein. Es ist jedoch auch möglich, dass die Aussparungen 42, 44 gekrümmte Begrenzungen aufweisen und insbesondere U-förmig begrenzt sind.The recesses 42, 44 may, as shown in the drawing, be limited in a straight line. However, it is also possible that the recesses 42, 44 have curved boundaries and in particular are U-shaped limited.

Bei einer alternativen Ausführungsform eines Finishbands 30 umfasst auch die der zweiten Berandung 40 gegenüberliegende Berandung 38 Aussparungen, welche in Figur 2 mit gestrichelten Linien dargestellt und mit Bezugszeichen 60, 62 bezeichnet sind. Bei dieser Ausführungsform ist es bevorzugt, wenn Aussparungen, welche im Bereich einander gegenüberliegender Berandungen 38, 40 angeordnet sind, bezogen auf die Finishbandlängsachse 32 auf derselben Höhe angeordnet sind. Beispielsweise sind die Aussparungen 42 und 60 auf derselben Höhe angeordnet und die Aussparungen 44 und 62.In an alternative embodiment of a finishing tape 30, the boundary 38 opposite the second boundary 40 also comprises recesses, which in FIG FIG. 2 shown with dashed lines and designated by reference numerals 60, 62. In this embodiment, it is preferred if recesses, which are arranged in the region of mutually opposite borders 38, 40, are arranged at the same height with respect to the finishing tape longitudinal axis 32. For example, the recesses 42 and 60 are arranged at the same height and the recesses 44 and 62.

In den Figuren 3 und 4 ist eine Ausführungsform eines Finishsystems 64 dargestellt, welches ein vorstehend beschriebenes Werkstück 10 und ein vorstehend beschriebenes Finishband 30 umfasst.In the Figures 3 and 4 1, an embodiment of a finishing system 64 is shown that includes a workpiece 10 described above and a finishing belt 30 described above.

Das Finishsystem 64 umfasst einen Finishbandvorrat 66 für frisches Finishband und einen Finishbandsammler 68 für verbrauchtes Finishband. Das Finishband 30 ist von dem Finishband 66 abwickelbar und auf den Finishbandsammler 68 aufwickelbar.The finish system 64 includes a finish belt stocker 66 for fresh finishing tape and a finishing belt collector 68 for spent finishing tape. The finishing belt 30 can be unwound from the finishing belt 66 and can be wound onto the finishing belt collector 68.

Das Finishsystem 64 umfasst ferner ein Andrückelement 70, welches dazu dient, das Finishband 30 gegen die Oberfläche 14 zu drücken. Insbesondere dient das Andrückelement 70 dazu, einen zwischen zwei Aussparungen 42, 44 angeordneten Finishbandabschnitt 46 gegen den Oberflächenabschnitt 16 des Werkstücks 10 anzudrücken.The finish system 64 further includes a pressing member 70 which serves to press the finishing tape 30 against the surface 14. In particular, the pressing element 70 serves for pressing a finishing belt section 46 arranged between two recesses 42, 44 against the surface section 16 of the workpiece 10.

Das Andrückelement 70 weist eine in einer Andrückrichtung 72 gemessene Bautiefe 74 und eine in Transportrichtung 34, 36 des Finishbands 30 gemessene Bauhöhe 76 auf. Ferner weist das Andrückelement 70 eine Baubreite 78 auf, welche in zu der Werkstücksachse 12 paralleler Richtung gemessen wird.The pressing element 70 has a depth 74 measured in a pressing direction 72 and a height 76 measured in the transport direction 34, 36 of the finishing strip 30. Furthermore, the pressing element 70 has a width 78, which is measured in parallel to the workpiece axis 12 direction.

Die Bautiefe 74 und die Bauhöhe 76 sind so niedrig, dass das Andrückelement 70 entlang eines Teils seiner Baubreite 78 in den zwischen dem Oberflächenabschnitt 16 und dem Überdeckungsabschnitt 18 angeordneten Hinterschnittbereich 20 eingetaucht werden kann.The overall depth 74 and the overall height 76 are so low that the pressing element 70 can be immersed along a part of its width 78 in the undercut area 20 arranged between the surface section 16 and the covering section 18.

Vorzugsweise entspricht die Baubreite 78 der Breite der Oberfläche 14 (welche den Oberflächenabschnitt 16 umfasst) des Werkstücks 10. Hierbei ist es besonders bevorzugt, wenn die auf Höhe des Finishbandabschnitts 46 gemessene Finishbandbreite 48 ebenfalls der Baubreite 78 des Andrückelements 70 entspricht.Preferably, the width 78 of the width of the surface 14 (which includes the surface portion 16) of the workpiece 10. Here, it is particularly preferred if the measured at the level of the finishing belt portion 46 finishing belt width 48 also corresponds to the width 78 of the pressing member 70.

Das Finishbandsystem 64 funktioniert folgendermaßen:

  • Das Werkstück 10 wird in einen (nicht dargestellten) Werkstückhalter eingespannt. Vorzugsweise umfasst der Werkstückhalter einen Antrieb, mittels welchem das Werkstück 10 um die Werkstückachse 12 rotierend antreibbar ist.
The finishing tape system 64 works as follows:
  • The workpiece 10 is clamped in a workpiece holder (not shown). Preferably, the workpiece holder comprises a drive, by means of which the workpiece 10 is rotatably driven about the workpiece axis 12.

Anschließend wird das Finishband von dem Finishbandvorrat 66 abgerollt und in Richtung auf das Werkstück 10 zugeführt. Dabei wird eine erste Aussparung 42 so angeordnet, dass ein erster Bereich 80 des Überdeckungsabschnitts in eine erste Aussparung 42 und ein zweiter Bereich 82 des Überdeckungsabschnitts 18 in eine zweite Aussparung 44 eingeführt wird. Hierbei wird ein zwischen den Aussparungen 42, 44 angeordneter Finishbandabschnitt 46 in dem Hinterschnittbereich 20 des Werkstücks 10 angeordnet. Ausgehend von der zweiten Aussparung 44 wird das Finishband 30 dem Finishbandsammler 68 zugeführt.Subsequently, the finishing belt is unwound from the finishing belt supply 66 and fed in the direction of the workpiece 10. In this case, a first recess 42 is so arranged that a first portion 80 of the overlap portion is inserted into a first recess 42 and a second portion 82 of the overlap portion 18 in a second recess 44. In this case, a finishing belt section 46 arranged between the recesses 42, 44 is arranged in the undercut region 20 of the workpiece 10. Starting from the second recess 44, the finishing belt 30 is fed to the finishing belt collector 68.

Ferner wird das Andrückelement 70 gegen die Trägerschicht des Finishbands 30 gedrückt, so dass die abrasive Schicht des Finishbands 30 in Wirkkontakt mit der Oberfläche 14 und mit dem Oberflächenabschnitt 16 gelangt. Dabei wird das Andrückelement 70 in einer zu der Werkstückachse 12 parallelen Richtung anteilig in den Hinterschnittbereich 20 eingetaucht.Further, the pressing member 70 is pressed against the carrier layer of the finishing tape 30, so that the abrasive layer of the finishing tape 30 comes into operative contact with the surface 14 and with the surface portion 16. In this case, the pressure element 70 is immersed in a direction parallel to the workpiece axis 12 proportionately in the undercut portion 20.

Hiervon ausgehend wird das Werkstück 10 rotierend angetrieben und die Oberfläche 14 mit dem Oberflächenabschnitt 16 finishend bearbeitet. Bei genügend großzügiger Bemessung des Abstandes 56 zwischen einander folgenden Aussparungsbegrenzungen 52, 54 einer Aussparung 42, 44 ist es möglich, das Finishband 30 in Transportrichtung 34 oder 36 fortzubewegen, wobei der Überdeckungsabschnitt 18 in den Aussparungen 42, 44 eingeführt bleibt.On this basis, the workpiece 10 is driven in rotation and the surface 14 machined with the surface portion 16 finishing. With sufficient generous dimensioning of the distance 56 between successive Aussparungsbegrenzungen 52, 54 of a recess 42, 44, it is possible to move the finishing belt 30 in the transport direction 34 or 36, wherein the cover portion 18 is inserted into the recesses 42, 44.

Optional kann die rotierende Bewegung des Werkstücks 10 mit einer oszillierenden Bewegung des Andrückelements 70 und/oder des Finishbands 30 in zu der Werkstückachse 12 paralleler Richtung überlagert werden, um besonders hohe Oberflächenqualitäten erzielen zu können. Es ist aber auch möglich, das Werkstück 10 oszillierend anzutreiben, insbesondere in zu der Werkstückachse 12 paralleler Richtung, und das Andrückelement 70 und das Finishband 30 nicht zu bewegen.Optionally, the rotating movement of the workpiece 10 can be superimposed with an oscillating movement of the pressing element 70 and / or the finishing strip 30 in a direction parallel to the workpiece axis 12 in order to be able to achieve particularly high surface qualities. But it is also possible to drive the workpiece 10 oscillating, in particular parallel to the workpiece axis 12 Direction, and the pressing member 70 and the finishing belt 30 not to move.

Im Anschluss an die finishende Bearbeitung des Werkstücks 10 wird das Andrückelement 70 parallel zu der Werkstückachse 12 bewegt, so dass es aus dem Hinterschnittbereich 20 austaucht. Anschließend kann das Werkstück 10 aus der Werkstückaufnahme entnommen werden. Zur Vorbereitung eines weiteren Finishvorgangs ist es vorteilhaft, wenn das Finishband 30 um einen Vorschub bewegt wird, welcher dem Abstand von zwei aufeinander folgenden Aussparungen 42, 44 entspricht. Hierdurch steht ein frischer Finishbandabschnitt 46 zur Verfügung, mit welchem ein weiteres Werkstück 10 bearbeitet werden kann.Subsequent to the finishing machining of the workpiece 10, the pressing element 70 is moved parallel to the workpiece axis 12, so that it emerges from the undercut area 20. Subsequently, the workpiece 10 can be removed from the workpiece holder. To prepare a further finishing operation, it is advantageous if the finishing belt 30 is moved by a feed rate which corresponds to the distance between two successive recesses 42, 44. As a result, a fresh finishing belt section 46 is available, with which a further workpiece 10 can be machined.

Claims (14)

Finishsystem (64) umfassend ein Werkstück (10) und ein Finishband (30), wobei das Werkstück (10) eine Werkstückachse (12) aufweist und mindestens einen zu bearbeitenden, bezogen auf die Werkstückachse (12) nach radial außen weisenden Oberflächenabschnitt (16), welcher zu diesem beabstandet entlang einer Überdeckungsbreite (22) nach radial außen von einem Überdeckungsabschnitt (18) des Werkstücks (10) überdeckt ist, so dass zwischen dem Überdeckungsabschnitt (18) und dem Oberflächenabschnitt (16) ein Hinterschnittbereich (20) entsteht, dadurch gekennzeichnet, dass eine seitliche Berandung (40) des Finishbands mindestens eine Aussparung (42, 44) umfasst, in welche der Überdeckungsabschnitt (18) des Werkstücks (10) entlang der Überdeckungsbreite (22) einführbar oder eingeführt ist, und dass ein in einer Transportrichtung (34, 36) des Finishbands (30) gesehen zu der Aussparung (42, 44) benachbarter Finishbandabschnitt (46) in den Hinterschnittbereich (20) einführbar oder eingeführt und in Wirkkontakt mit dem zu bearbeitenden Oberflächenabschnitt (16) bringbar oder gebracht ist.Finishing system (64) comprising a workpiece (10) and a finishing belt (30), the workpiece (10) having a workpiece axis (12) and at least one surface section (16) to be machined with respect to the workpiece axis (12) pointing radially outwards. , which is covered on this spaced along an overlap width (22) radially outward by a cover portion (18) of the workpiece (10), so that between the cover portion (18) and the surface portion (16), an undercut region (20) is formed, characterized characterized in that a lateral edge (40) of the finishing tape comprises at least one recess (42, 44) into which the overlapping portion (18) of the workpiece (10) is insertable or inserted along the overlapping width (22) and one in a transporting direction (34, 36) of the finishing strip (30) seen to the recess (42, 44) of adjacent finishing strip portion (46) in the undercut region (20) insertable or introduced and in operative contact with the surface to be machined portion (16) can be brought or brought. Finishsystem (64) nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Aussparung (42, 44) zueinander beabstandete Aussparungsbegrenzungen (52, 54) aufweist, welche jeweils quer zu der Transportrichtung (34, 36) des Finishbands (30) orientiert sind, wobei die Aussparungsbegrenzungen (52, 54) einen Abstand (56) zueinander aufweisen, der größer ist als eine in Transportrichtung (34, 36) des Finishbands (30) gemessene Dicke (58) des Überdeckungsabschnitts (18), so dass das Finishband (30) in Transportrichtung (34, 36) bewegbar ist, wenn der Überdeckungsabschnitt (18) in die Aussparung (42, 44) eingeführt ist.Finishing system (64) according to claim 1, characterized in that the at least one recess (42, 44) has mutually spaced recess boundaries (52, 54) which are each oriented transversely to the transport direction (34, 36) of the finishing strip (30), wherein the recess boundaries (52, 54) have a distance (56) from each other which is greater than a transport direction (34, 36) of the finishing strip (30). measured thickness (58) of the cover portion (18), so that the finishing tape (30) in the transport direction (34, 36) is movable when the cover portion (18) is inserted into the recess (42, 44). Finishsystem (64) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der zu bearbeitende Oberflächenabschnitt (16) des Werkstücks (10) ringförmig ist.Finish system (64) according to any one of the preceding claims, characterized in that the surface portion (16) of the workpiece (10) to be machined is annular. Finishsystem (64) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Überdeckungsabschnitt (18) ring- oder ringsegmentförmig ist.Finish system (64) according to any one of the preceding claims, characterized in that the covering portion (18) is ring-shaped or ring-segment-shaped. Finishsystem (64) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Finishband (30) mindestens zwei in Transportrichtung (34, 36) des Finishbands (30) gesehen einander folgende, voneinander getrennte Aussparungen (42, 44) aufweist und dass unterschiedliche Bereiche (80, 82) des Überdeckungsabschnitts (18) in unterschiedliche Aussparungen (42, 44) einführbar sind oder in unterschiedlichen Aussparungen (42, 44) eingeführt sind.Finish system (64) according to any one of the preceding claims, characterized in that the finishing belt (30) at least two in the transport direction (34, 36) of the finishing strip (30) seen each other following, separate recesses (42, 44) and that different areas (80, 82) of the cover portion (18) in different recesses (42, 44) are insertable or in different recesses (42, 44) are introduced. Finishsystem (64) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es mindestens ein Andrückelement (70) zum Andrücken des Finishbands (30) gegen den zu bearbeitenden Oberflächenabschnitt (16) umfasst und dass eine in Andrückrichtung (72) gemessene Bautiefe (74) und eine in Transportrichtung (34, 36) des Finishbands (30) gemessene Bauhöhe (76) des Andrückelements (70) so niedrig bemessen sind, dass das Andrückelement (70) zumindest entlang eines Teils seiner Baubreite (78) in den Hinterschnittbereich (20) eintauchbar ist.Finish system (64) according to one of the preceding claims, characterized in that it comprises at least one pressing element (70) for pressing the finishing strip (30) against the surface portion (16) to be machined and that a depth (74) measured in the pressing direction (72). and a height (76) of the pressing element (70) measured in the transporting direction (34, 36) of the finishing strip (30) is set so low that the pressing element (70) extends at least along one Part of its width (78) in the undercut area (20) is submersed. Verfahren zur finishenden Bearbeitung eines Werkstücks (10) mittels eines Finishbands (30), wobei das Werkstück (10) eine Werkstückachse (12) aufweist und mindestens einen zu bearbeitenden, bezogen auf die Werkstückachse nach radial außen weisenden Oberflächenabschnitt (16), welcher zu diesem beabstandet nach radial außen von einem Überdeckungsabschnitt (18) des Werkstücks (10) überdeckt ist, so dass zwischen dem Überdeckungsabschnitt (18) und dem Oberflächenabschnitt (16) ein Hinterschnittbereich (20) entsteht, dadurch gekennzeichnet, dass eine seitliche Berandung (40) des Finishbands (30) mindestens eine Aussparung (42, 44) umfasst, in welche der Überdeckungsabschnitt (18) des Werkstücks (10) entlang der Überdeckungsbreite (22) eingeführt wird, und dass ein in einer Transportrichtung 34, 36) des Finishbands (30) gesehen zu der Aussparung (42, 44) benachbarter Finishbandabschnitt (46) in den Hinterschnittbereich (20) eingeführt und in Wirkkontakt mit dem zu bearbeitenden Oberflächenabschnitt (16) gebracht wird.Method for finish-machining a workpiece (10) by means of a finishing strip (30), the workpiece (10) having a workpiece axis (12) and at least one surface section (16) pointing radially outward relative to the workpiece axis and facing thereto spaced radially outwardly from a covering portion (18) of the workpiece (10) so as to form an undercut area (20) between the covering portion (18) and the surface portion (16), characterized in that a lateral boundary (40) of the Finishing tapes (30) comprises at least one recess (42, 44) into which the overlapping portion (18) of the workpiece (10) is inserted along the overlapping width (22) and one in a transporting direction 34, 36) of the finishing tape (30) seen to the recess (42, 44) of adjacent finishing band portion (46) inserted into the undercut area (20) and in operative contact with the edit the surface portion (16) is brought. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die mindestens eine Aussparung (42, 44) zueinander beabstandete Aussparungsbegrenzungen (52, 54) aufweist, welche jeweils quer zu der Transportrichtung (34, 36) des Finishbands (30) orientiert sind, wobei die Aussparungsbegrenzungen (52, 54) einen Abstand (56) zueinander aufweisen, der größer ist als eine in Transportrichtung (34, 36) des Finishbands (30) gemessene Dicke (58) des Überdeckungsabschnitts (18), wobei das Finishband (30) in Transportrichtung (34, 36) bewegt wird.A method according to claim 7, characterized in that the at least one recess (42, 44) spaced apart Aussparungungsbegrenzungen (52, 54) which are each oriented transversely to the transport direction (34, 36) of the finishing strip (30), wherein the Aussparungsbegrenzungen (52, 54) have a distance (56) from one another which is greater than a thickness (58) of the thickness measured in the transport direction (34, 36) of the finishing strip (30) Covering portion (18), wherein the finishing belt (30) in the transport direction (34, 36) is moved. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass das Finishband (30) mindestens zwei in Transportrichtung (34, 36) des Finishbands (30) gesehen einander folgende, voneinander getrennte Aussparungen (42, 44) aufweist und dass unterschiedliche Bereiche (80, 82) des Überdeckungsabschnitts (18) in unterschiedliche Aussparungen (42, 44) eingeführt werden.A method according to claim 7 or 8, characterized in that the finishing belt (30) at least two in the transport direction (34, 36) of the finishing strip (30) seen each other following, separate recesses (42, 44) and that different areas (80, 82) of the cover portion (18) are inserted into different recesses (42, 44). Verfahren nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass das Werkstück (10) rotierend angetrieben wird.Method according to one of claims 7 to 9, characterized in that the workpiece (10) is driven in rotation. Verfahren nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass das Finishband (30) mit einem Andrückelement (70) gegen den zu bearbeitenden Oberflächenabschnitt (16) gedrückt wird und dass das Andrückelement (70) so angeordnet wird, dass es zumindest abschnittsweise in den Hinterschnittbereich (20) eintaucht.Method according to one of claims 7 to 10, characterized in that the finishing belt (30) is pressed with a pressure element (70) against the surface portion to be machined (16) and that the pressure element (70) is arranged so that it at least partially in the undercut area (20) is immersed. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass das Andrückelement (70) in einer Richtung quer zu der Transportrichtung (34, 36) des Finishbands (30) oszillierend angetrieben wird.A method according to claim 11, characterized in that the pressing element (70) is driven in an oscillating manner in a direction transverse to the transport direction (34, 36) of the finishing strip (30). Verfahren nach einem der Ansprüche 7 bis 12, dadurch gekennzeichnet, dass das Finishband (30) in einer Richtung quer zu der Transportrichtung (34, 36) des Finishbands (30) oszillierend angetrieben wird.Method according to one of claims 7 to 12, characterized in that the finishing belt (30) is driven to oscillate in a direction transverse to the transport direction (34, 36) of the finishing belt (30). Verwendung eines Finishsystems (64) nach einem der Ansprüche 1 bis 6 zur Verwendung bei einem Verfahren nach einem der Ansprüche 7 bis 13.Use of a finishing system (64) according to any one of claims 1 to 6 for use in a method according to any one of claims 7 to 13.
EP20090012056 2009-09-23 2009-09-23 Finishing system with workpiece and finishing belt and method for finishing a workpiece Not-in-force EP2301716B1 (en)

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EP20090012056 EP2301716B1 (en) 2009-09-23 2009-09-23 Finishing system with workpiece and finishing belt and method for finishing a workpiece

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EP2301716B1 EP2301716B1 (en) 2013-04-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116430818A (en) * 2023-06-05 2023-07-14 水发物联科技有限公司 Automatic production line production method and system based on control of multi-station program control equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947039A1 (en) * 1979-11-22 1980-12-04 Fritz Wilmsmeyer Gmbh & Co Kg Machine for rounding edges of flat workpieces - has template mounted on linear ball bearings to guide workpiece
US7169028B1 (en) 2005-11-02 2007-01-30 Barton Ii Kenneth A Flexible finishing shoe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947039A1 (en) * 1979-11-22 1980-12-04 Fritz Wilmsmeyer Gmbh & Co Kg Machine for rounding edges of flat workpieces - has template mounted on linear ball bearings to guide workpiece
US7169028B1 (en) 2005-11-02 2007-01-30 Barton Ii Kenneth A Flexible finishing shoe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116430818A (en) * 2023-06-05 2023-07-14 水发物联科技有限公司 Automatic production line production method and system based on control of multi-station program control equipment
CN116430818B (en) * 2023-06-05 2023-09-15 鲁控数字技术(山东)有限公司 Automatic production line production method and system based on control of multi-station program control equipment

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