EP2260974B1 - Workpiece holder for a surface grinding machine - Google Patents

Workpiece holder for a surface grinding machine Download PDF

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Publication number
EP2260974B1
EP2260974B1 EP09007670A EP09007670A EP2260974B1 EP 2260974 B1 EP2260974 B1 EP 2260974B1 EP 09007670 A EP09007670 A EP 09007670A EP 09007670 A EP09007670 A EP 09007670A EP 2260974 B1 EP2260974 B1 EP 2260974B1
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EP
European Patent Office
Prior art keywords
workpiece
holder
workpiece holder
parts
grinding machine
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.)
Not-in-force
Application number
EP09007670A
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German (de)
French (fr)
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EP2260974A1 (en
Inventor
Torsten Bergmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Supfina Grieshaber GmbH and Co KG
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Supfina Grieshaber GmbH and Co KG
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Supfina Grieshaber GmbH and Co KG filed Critical Supfina Grieshaber GmbH and Co KG
Priority to ES09007670T priority Critical patent/ES2357796T3/en
Priority to AT09007670T priority patent/ATE497856T1/en
Priority to EP09007670A priority patent/EP2260974B1/en
Priority to DE502009000369T priority patent/DE502009000369D1/en
Priority to CN2010102030272A priority patent/CN101920474A/en
Publication of EP2260974A1 publication Critical patent/EP2260974A1/en
Application granted granted Critical
Publication of EP2260974B1 publication Critical patent/EP2260974B1/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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/04—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a rotary work-table
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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

Definitions

  • the present invention relates to a workpiece holder for a surface grinding machine, in particular a surface grinding machine workpiece holder, with a central workpiece holder axis about which the workpiece holder is rotatably driven, and at least one workpiece holder for receiving at least one workpiece.
  • Workpiece holders for surface grinding machines have the task of holding a workpiece and transferring it from an assembly area of a surface grinding machine into a processing area of a surface grinding machine.
  • at least one grinding tool is in surface grinding engagement with a surface of the workpiece received on or in the workpiece holder of the workpiece holder.
  • workpiece holder of the type mentioned are usually made of a comparatively hard material to achieve a relatively high deformation resistance, even at low material thicknesses of the workpiece holder.
  • the loading discs can be added to a transport shaft and fixed, have prismatic cutouts and can be rotated against each other.
  • the present invention has the object to provide a workpiece holder, with which above-described disadvantages are avoided.
  • the workpiece holder comprises at least two holder parts movable relative to one another, which each form at least part of the boundary of at least one workpiece holder.
  • the shape and / or size of the Workpiece holder changed. If the shape and size of the workpiece holder is optimally adjusted by movement of the holder parts relative to each other for a workpiece to be machined, the holder parts can be fixed in this state by means of a connecting device relative to each other.
  • the invention provides that at least one of the holder parts has at least one Maschinen Swissfactnbegrenzungselement which projects into a plane of movement of another holder part. This allows an enlargement of the effective area of a workpiece holder boundary, whereby a reduction of locally occurring contact forces between a workpiece holder boundary and a workpiece held on the workpiece holder workpiece is achieved.
  • the at least one workpiece receiving limiting element acts as wear protection.
  • the at least one workpiece receiving limiting element may for example be formed integrally with the holder part or may be provided separately. Such a separate workpiece receiving limiting element is in particular detachably connected to the holder part, in particular by means of a screw connection, so that the at least one workpiece receiving element can be removed and exchanged for a workpiece holder limiting element of identical size and / or shape or with different size and / or shape.
  • the holder parts are each rotatable about the central workpiece holder axis, so that the holder parts can be arranged concentrically with one another and, in particular, can be moved relative to one another in mutually parallel holder planes.
  • the holder parts each define a plurality of workpiece holders, so that a plurality of workpieces can be received on the workpiece holder.
  • the different workpiece holders are simultaneously adapted in terms of their shape and size by movement of the holder parts to a predetermined workpiece size.
  • the workpiece holder for uniform processing of all held on the workpiece holder workpieces can be driven uniformly in the direction of rotation, for example continuously or in step mode.
  • At least one of the holder parts has a workpiece holder boundary which is closed on the circumference. As a result, the mechanical stability of this holder part is increased.
  • At least one of the holder parts on a peripherally open workpiece holder limitation whereby a particularly simple adjustment of the size and shape of the workpiece holder is made possible in particular for workpieces with round geometries.
  • the holder parts extend in mutually parallel planes of movement, so that the holder parts can each be designed as a disk body that is relatively easy to produce.
  • the holder parts abut each other, so that a mutual parallel guidance of the holder parts is made possible.
  • connection device is arranged collinear with the workpiece holder axis. This allows a fixation of the holder parts relative to each other in the region of the centric workpiece holder axis. This allows a reliable fixation especially for thin, disc-shaped holder parts.
  • the invention further relates to a surface grinding machine, in particular a double-plan grinding machine, with a workpiece holder described above.
  • the lower holder member 20 has a greater material thickness than the upper holder member 18, the lower holder member 20 has a higher deformation resistance and thus forms a planar support for a thinner upper holder member 18th
  • the workpiece holder 10 has a plurality of workpiece holders 26 which have the same radial distance relative to the workpiece holder axis 12.
  • the workpiece holders 26 are also circumferentially identically spaced relative to each other.
  • the holder parts 18 and 20 each have workpiece receiving limits, which are formed by means of openings in the holder parts 18 and 20.
  • the first holder part 18 has circumferentially closed workpiece receiving limits 28, which, as shown in the drawing, for example, are ring-segment-shaped.
  • the second holder part 20 also has a plurality of workpiece receiving limits 30, which are preferably also formed substantially annular segment-shaped.
  • the size of the workpiece holders 26 jointly formed by the workpiece holder limiters 28 and 30 is infinitely adjustable.
  • the first holder part 18 further has a workpiece holder limiting element 33, which projects into the movement plane 24 of the second holder part 20 and extends into a space bounded by the workpiece holder boundary 30.
  • the workpiece holder limiting element 33 is detachably connected to the first holder part 18 via a connection 34 in the form of a screw connection 36.
  • the workpiece holder limiting element 33 serves to extend a limiting section 38 of the workpiece holder boundary 28 of the first holding part 18 in a direction parallel to the workpiece holder axis 12.
  • the Werk Swissfactnbegrenzungselement 33 has a boundary surface 40.
  • the workpiece receiving limiting element 33 can be received when the holder parts 18 and 20 are adjusted relative to each other so that the size of the workpiece holders 26 is maximized.
  • the holder parts 18 and 20 are using a in FIG. 3 illustrated connecting device 46 relative to each other fixed.
  • the fastening device 46 is preferably designed in the form of a fastening device 48, by means of which the workpiece holder 10 is non-rotatably connected to a rotary drive device 50 of a surface grinding machine.
  • the rotary drive device 50 includes a drive shaft 52, which is rotatably connected via a clamping device 54 with a housing part 56.
  • the drive shaft 52 is connected via a threaded portion 58 with a bolt 60 which extends through the attachment portion 14 of the workpiece holder 10.
  • the bolt 60 is connected at its end remote from the rotary drive device 50 with a hydraulic clamping nut 62.
  • the clamping nut 62 acts via a tensioning lock 64 and via a spacer ring 66 on an upper side of the holder part 18.
  • the housing part 56 has a shoulder-shaped shoulder 68, on which a spacer ring 70 is mounted. On the spacer ring 70, a further spacer ring 72 is mounted.
  • the workpiece holder 10 with its holder parts 18 and 20 is clamped between the spacer elements 66 and 72 arranged on opposite sides of the workpiece holder. In this way, on the one hand, a rotational movement of the drive shaft 52 can be transmitted to the workpiece holder 10 become. On the other hand, this allows a fixation of the holder parts 18 and 20 are achieved relative to each other.
  • annular sealing element 76 is further provided.
  • FIGS. 4 and 5 a workpiece holder 10 is known from the prior art.
  • the workpiece holder 10 according to FIGS. 4 and 5 has, in contrast to the workpiece holder 10 described above, a third holder part 78, which is also disc-shaped.
  • the third holder part 78 is arranged, for example, between the first holder part 18 and the second holder part 20.
  • the holder parts 18, 20 and 78 are rotatable relative to each other about a central workpiece holder axis 12.
  • the holder parts 18 and 78 are mounted on the holder part 20.
  • the holder part 20 has a pocket-shaped, circular recess 82 in which the holder parts 18 and 78 are received.
  • the second holding part 20 has circumferentially closed workpiece receiving limits 30.
  • the second holder part 18 has radially outwardly pointing, peripherally open workpiece holder boundaries 28, which, viewed in the plan view of the workpiece holder 10, extend in the shape of a groove in the direction of the workpiece holder axis 12.
  • the third holder part 78 also has a radially outwardly facing and peripherally open workpiece receiving space boundary 80.
  • the Maschinentschöraumbegrenzonne 28, 30 and 80 extend in relation to the workpiece holder axis 12 mutually offset planes.
  • the abovementioned workpiece receiving space boundaries jointly form a workpiece holder 26 in each case.
  • precisely one workpiece 32 with a round outer geometry can be reliably fastened in each workpiece holder.
  • the workpiece 32 rests with different workpiece sections on all workpiece holder limits 28, 30 and 80.
  • the workpiece 32 is pressed with the aid of the workpiece holder boundaries 28 and 80 radially outward against a radially inwardly facing portion of the workpiece holder boundary 30.
  • the workpiece holder 10 according to FIGS. 1 to 3 is particularly suitable for angularly limited workpieces 32, such as rectangular or square parts.
  • the in the FIGS. 4 and 5 shown workpiece holder 10 is particularly suitable for holding round parts.
  • a workpiece holder 10 has not only two or three holder parts, but four or more holder parts.

Abstract

The workpiece holder (10) has a central workpiece holding axis (12) which rotably drives the workpiece holder. A workpiece receptacle (26) is provided for receiving the workpieces (32). Two holder pieces (18,20) are relatively moved together, and jointly define one of the holder pieces. The holder pieces are fixed relatively together by a connecting device.

Description

Die vorliegende Erfindung betrifft einen Werkstückhalter für eine Planschleifmaschine, insbesondere einen Planschleifmaschinen-Werkstückhalter, mit einer zentrischen Werkstückhalterachse, um welche der Werkstückhalter drehbar antreibbar ist, und mit mindestens einer Werkstückaufnahme zur Aufnahme mindestens eines Werkstücks.The present invention relates to a workpiece holder for a surface grinding machine, in particular a surface grinding machine workpiece holder, with a central workpiece holder axis about which the workpiece holder is rotatably driven, and at least one workpiece holder for receiving at least one workpiece.

Werkstückhalter für Planschleifmaschinen haben die Aufgabe, ein Werkstück zu halten und aus einem Bestückungsbereich einer Planschleifmaschine in einen Bearbeitungsbereich einer Planschleifmaschine zu überführen. In dem Bearbeitungsbereich einer Planschleifmaschine steht mindestens ein Schleifwerkzeug in planschleifendem Eingriff mit einer Oberfläche des an oder in der Werkstückaufnahme des Werkstückhalters aufgenommenen Werkstücks.Workpiece holders for surface grinding machines have the task of holding a workpiece and transferring it from an assembly area of a surface grinding machine into a processing area of a surface grinding machine. In the processing area of a surface grinding machine, at least one grinding tool is in surface grinding engagement with a surface of the workpiece received on or in the workpiece holder of the workpiece holder.

Da das Werkstück gemeinsam mit dem Werkstückhalter in einen Schleifspalt hineinbewegt wird, welcher vergleichsweise klein sein kann, beispielsweise weniger als ungefähr 3 cm beträgt, werden hohe Anforderungen an die Stabilität des relativ flachen Werkstückhalters gestellt. Daher werden Werkstückhalter der eingangs genannten Art üblicherweise aus einem vergleichsweise harten Material gefertigt, um auch bei niedrigen Materialstärken des Werkstückhalters einen relativ hohen Verformungswiderstand zu erreichen. Für eine hochgenaue planschleifende Bearbeitung eines Werkstücks ist es jedoch erforderlich, das mindestens eine Werkstück möglichst spielfrei an der Werkstückaufnahme zu lagern. Dies führt dazu, dass auch die Werkstückaufnahme mit niedrigen Toleranzen gefertigt werden muss und die Herstellung bekannter Werkstückhalter entsprechend aufwändig und teuer ist.Since the workpiece is moved together with the workpiece holder in a grinding gap, which may be relatively small, for example, less than about 3 cm, high demands are placed on the stability of the relatively flat workpiece holder. Therefore, workpiece holder of the type mentioned are usually made of a comparatively hard material to achieve a relatively high deformation resistance, even at low material thicknesses of the workpiece holder. However, for a highly accurate surface grinding machining of a workpiece, it is necessary to store the at least one workpiece as free of play as possible on the workpiece holder. This means that the workpiece holder must be manufactured with low tolerances and the production of known workpiece holder is correspondingly complex and expensive.

Infolge der vorstehenden Zusammenhänge werden auch an die Toleranzen noch unbearbeiteter Werkstücke hohe Anforderungen gestellt, damit diese möglichst spielfrei mit einer Werkstückaufnahme eines Werkstücks zusammenwirken können.As a result of the above relationships, high demands are placed on the tolerances of still unprocessed workpieces, so that they can interact with as little play as possible with a workpiece holder of a workpiece.

Aus der DE 29 00 009 A1 ist ein Werkstückhalter mit zwei Ladescheiben bekannt. Die Ladescheiben können an einer Transportwelle aufgenommen und befestigt werden, weisen prismatische Ausschnitte auf und können gegeneinander verdreht werden.From the DE 29 00 009 A1 is a workpiece holder with two loading discs known. The loading discs can be added to a transport shaft and fixed, have prismatic cutouts and can be rotated against each other.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Werkstückhalter zu schaffen, mit welchem vorstehend erläuterte Nachteile vermieden werden.Proceeding from this, the present invention has the object to provide a workpiece holder, with which above-described disadvantages are avoided.

Diese Aufgabe wird durch einen Werkstückhalter mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved by a workpiece holder having the features of patent claim 1.

Der erfindungsgemäße Werkstückhalter ermöglicht eine variable Begrenzung mindestens einer Werkstückaufnahme, so dass die Werkstückaufnahme an die Form eines Werkstücks anpassbar ist. Dies ermöglicht es, Toleranzen von unbearbeiteten Werkstücken auszugleichen. Darüber hinaus ist es aber besonders vorteilhaft, dass die variable Begrenzung einer Werkstückaufnahme es ermöglicht, unterschiedlich große Werkstücke aufzunehmen, so dass der erfindungsgemäße Werkstückhalter für unterschiedlich große Werkstücke geeignet ist. Dies hat zur Folge, dass für unterschiedlich große Werkstücke nicht mehr, wie aus dem Stand der Technik bekannt, jeweils spezifische Werkstückhalter bereitgestellt werden müssen. Vielmehr kann der erfindungsgemäße Werkstückhalter genutzt werden, um dessen mindestens eine Werkstückaufnahme zu verwenden, um unterschiedlich große Werkstücke an oder in dieser Werkstückaufnahme befestigen zu können. Außerdem kann die Anzahl der in einem Fertigungsbereich bereitzuhaltenden Werkstückhalter minimiert werden. Hierdurch werden Beschaffungskosten reduziert, und der Aufwand zur Lagerung von Werkstückhaltern kann verkleinert werden.The workpiece holder according to the invention allows a variable limitation of at least one workpiece holder, so that the workpiece holder can be adapted to the shape of a workpiece. This makes it possible to compensate for tolerances of unprocessed workpieces. In addition, however, it is particularly advantageous that the variable limitation of a workpiece holder makes it possible to accommodate workpieces of different sizes, so that the workpiece holder according to the invention is suitable for workpieces of different sizes. This has the consequence that for different sized workpieces no longer, as known from the prior art, each specific workpiece holder must be provided. Rather, the workpiece holder according to the invention can be used to use its at least one workpiece holder to attach different sized workpieces on or in this workpiece holder can. In addition, the number of workpiece holders to be provided in a manufacturing area can be minimized. As a result, procurement costs are reduced, and the cost of storage of workpiece holders can be reduced.

Darüber hinaus ermöglicht es der erfindungsgemäße Werkstückhalter, diesen für eine erste Werkstückgröße zu verwenden, dann in einem montierten Zustand an einer Planschleifmaschine zu belassen und an eine zweite Werkstückgröße anpassen zu können. Hierdurch werden während des Betriebs einer Planschleifmaschine die Nebenzeiten reduziert.In addition, the workpiece holder according to the invention makes it possible to use this for a first workpiece size, then to leave it in a mounted state on a surface grinding machine and to be able to adapt to a second workpiece size. As a result, the idle times are reduced during operation of a surface grinding machine.

Der Werkstückhalter umfasst mindestens zwei relativ zueinander bewegbare Halterteile, welche jeweils mindestens einen Teil der Begrenzung mindestens einer Werkstückaufnahme bilden. Durch Bewegung der Halterteile relativ zueinander wird die Form und/oder Größe der Werkstückaufnahme verändert. Wenn die Form und Größe der Werkstückaufnahme durch Bewegung der Halterteile relativ zueinander für ein zu bearbeitendes Werkstück optimal eingestellt ist, können die Halterteile in diesem Zustand mittels einer Verbindungseinrichtung relativ zueinander fixiert werden.The workpiece holder comprises at least two holder parts movable relative to one another, which each form at least part of the boundary of at least one workpiece holder. By movement of the holder parts relative to each other, the shape and / or size of the Workpiece holder changed. If the shape and size of the workpiece holder is optimally adjusted by movement of the holder parts relative to each other for a workpiece to be machined, the holder parts can be fixed in this state by means of a connecting device relative to each other.

Die Erfindung sieht vor, dass mindestens eines der Halterteile mindestens ein Werkstückaufnahmenbegrenzungselement aufweist, welches in eine Bewegungsebene eines anderen Halterteils hineinragt. Dies ermöglicht eine Vergrößerung der Wirkfläche einer Werkstückaufnahmenbegrenzung, wodurch eine Verringerung von lokal auftretenden Kontaktkräften zwischen einer Werkstückaufnahmenbegrenzung und einem an dem Werkstückhalter gehaltenen Werkstück erreicht wird. Außerdem wirkt das mindestens eine Werkstückaufnahmenbegrenzungselement, als Verschleißschutz.The invention provides that at least one of the holder parts has at least one Werkstückaufnahmenbegrenzungselement which projects into a plane of movement of another holder part. This allows an enlargement of the effective area of a workpiece holder boundary, whereby a reduction of locally occurring contact forces between a workpiece holder boundary and a workpiece held on the workpiece holder workpiece is achieved. In addition, the at least one workpiece receiving limiting element acts as wear protection.

Das mindestens eine Werkstückaufnahmebegrenzungselement kann beispielsweise einstückig mit dem Halterteil ausgebildet sein oder aber separat vorgesehen sein. Ein solches separates Werkstückaufnahmebegrenzungselement ist insbesondere lösbar mit dem Halterteil verbunden, insbesondere mit Hilfe einer Schraubverbindung, so dass das mindestens eine Werkstückaufnahmeelement entfernt und gegen ein Werkstückaufnahmenbegrenzungselement identischer Größe und/oder Form oder mit abweichender Größe und/oder Form ausgetauscht werden kann.The at least one workpiece receiving limiting element may for example be formed integrally with the holder part or may be provided separately. Such a separate workpiece receiving limiting element is in particular detachably connected to the holder part, in particular by means of a screw connection, so that the at least one workpiece receiving element can be removed and exchanged for a workpiece holder limiting element of identical size and / or shape or with different size and / or shape.

Besonders vorteilhaft ist es, wenn die Halterteile relativ zueinander verdrehbar sind, wodurch eine besonders einfache Anpassung der Größe und der Form einer Werkstückaufnahme ermöglicht ist.It when the holder parts are rotatable relative to each other, whereby a particularly simple adaptation of the size and shape of a workpiece holder is made is particularly advantageous.

In vorteilhafter Weise sind die Halterteile jeweils um die zentrische Werkstückhalterachse drehbar, so dass die Halterteile konzentrisch zueinander angeordnet werden können und insbesondere in zueinander parallelen Halterebenen relativ zueinander bewegbar sind.In an advantageous manner, the holder parts are each rotatable about the central workpiece holder axis, so that the holder parts can be arranged concentrically with one another and, in particular, can be moved relative to one another in mutually parallel holder planes.

In vorteilhafter Weise begrenzen die Halterteile jeweils eine Mehrzahl von Werkstückaufnahmen, so dass eine Mehrzahl von Werkstücken an dem Werkstückhalter aufgenommen werden kann. Hierbei werden die unterschiedlichen Werkstückaufnahmen hinsichtlich ihrer Form und ihrer Größe durch Bewegung der Halterteile gleichzeitig an eine vorgegebene Werkstückgröße angepasst.Advantageously, the holder parts each define a plurality of workpiece holders, so that a plurality of workpieces can be received on the workpiece holder. In this case, the different workpiece holders are simultaneously adapted in terms of their shape and size by movement of the holder parts to a predetermined workpiece size.

Nach einer Ausführungsform der Erfindung ist vorgesehen, dass zumindest zwei der Mehrzahl von Werkstückaufnahmen in zu der Werkstückachse radialer Richtung identisch beabstandet sind. Dies ermöglicht es, an den Werkstückaufnahmen gehaltene Werkstücke entlang derselben Bewegungsbahn durch einen Bearbeitungsbereich einer Planschleifmaschine zu führen.According to one embodiment of the invention, it is provided that at least two of the plurality of workpiece holders are identically spaced in the radial direction relative to the workpiece axis. This makes it possible to guide workpieces held on the workpiece holders along the same movement path through a processing region of a surface grinding machine.

Wenn die Werkstückaufnahmen in Umfangsrichtung relativ zueinander identisch beabstandet sind, kann der Werkstückhalter für eine gleichmäßige Bearbeitung aller an dem Werkstückhalter gehaltenen Werkstücke gleichmäßig in Drehrichtung angetrieben werden, beispielsweise kontinuierlich oder im Schrittbetrieb.If the workpiece holders are circumferentially spaced identically relative to each other, the workpiece holder for uniform processing of all held on the workpiece holder workpieces can be driven uniformly in the direction of rotation, for example continuously or in step mode.

Nach einer Ausführungsform der Erfindung ist vorgesehen, dass mindestens eines der Halterteile eine umfangsseitig geschlossene Werkstückaufnahmenbegrenzung aufweist. Hierdurch wird die mechanische Stabilität dieses Halterteils erhöht.According to one embodiment of the invention, it is provided that at least one of the holder parts has a workpiece holder boundary which is closed on the circumference. As a result, the mechanical stability of this holder part is increased.

Nach einer weiteren Ausführungsform der Erfindung weist mindestens eines der Halterteile eine umfangsseitig offene Werkstückaufnahmenbegrenzung auf, wodurch ein besonders einfaches Anpassen der Größe und der Form der Werkstückaufnahme insbesondere für Werkstücke mit runden Geometrien ermöglicht ist.According to a further embodiment of the invention, at least one of the holder parts on a peripherally open workpiece holder limitation, whereby a particularly simple adjustment of the size and shape of the workpiece holder is made possible in particular for workpieces with round geometries.

Wenn die umfangsseitig offene Werkstückaufnahmenbegrenzung nach radial außen weist, kann diese Werkstückaufnahmenbegrenzung verwendet werden, um das Werkstück nach radial außen gegen eine nach radial innen weisende Werkstückaufnahmenbegrenzung eines anderen Halterteils zu drücken. Dies ermöglicht ein besonders zuverlässiges Halten eines Werkstücks an dem Werkstückhalter mit einem gewünschten radialen Abstand zu der Werkstückhalterachse.If the workpiece-receiving limitation that is open at the circumference points radially outward, this workpiece-holder limit can be used to press the workpiece radially outward against a radially inwardly pointing workpiece-receiving boundary of another holder part. This allows a particularly reliable holding a workpiece to the workpiece holder with a desired radial distance to the workpiece holder axis.

Bevorzugt ist es, wenn sich die Halterteile in zueinander parallelen Bewegungsebenen erstrecken, so dass die Halterteile jeweils als relativ einfach herzustellende Scheibenkörper ausgebildet sein können. Insbesondere ist es vorteilhaft, wenn die Halterteile aneinander anliegen, so dass eine gegenseitige Parallelführung der Halterteile ermöglicht wird.It is preferred if the holder parts extend in mutually parallel planes of movement, so that the holder parts can each be designed as a disk body that is relatively easy to produce. In particular, it is advantageous if the holder parts abut each other, so that a mutual parallel guidance of the holder parts is made possible.

Vorteilhaft ist es ferner, wenn die Halterteile aneinander gelagert sind, so dass mögliche Relativlagen zwischen den Halterteilen vorgegeben sind.It is also advantageous if the holder parts are mounted on each other, so that possible relative positions between the holder parts are predetermined.

Ferner ist es bevorzugt, wenn die Verbindungseinrichtung kollinear zu der Werkstückhalterachse angeordnet ist. Dies ermöglicht eine Fixierung der Halterteile relativ zueinander im Bereich der zentrischen Werkstückhalterachse. Dies ermöglicht eine zuverlässige Fixierung insbesondere bei dünnen, scheibenförmigen Halterteilen.Furthermore, it is preferred if the connection device is arranged collinear with the workpiece holder axis. This allows a fixation of the holder parts relative to each other in the region of the centric workpiece holder axis. This allows a reliable fixation especially for thin, disc-shaped holder parts.

Ferner ist es bevorzugt, wenn die Verbindungseinrichtung mittels einer Befestigungseinrichtung zur Befestigung des Werkstückhalters an einer Drehantriebseinrichtung einer Planschleifmaschine gebildet ist. Hierdurch kann auf eine separat vorgesehene Verbindungseinrichtung verzichtet und eine an einer Planschleifmaschine bereits vorhandene Befestigungseinrichtung zur Befestigung eines Werkstückhalters genutzt werden.Furthermore, it is preferred if the connecting device is formed by means of a fastening device for fastening the workpiece holder to a rotary drive device of a surface grinding machine. As a result, it is possible to dispense with a separately provided connection device and to use a fastening device already present on a surface grinding machine for fastening a workpiece holder.

Die Erfindung betrifft ferner eine Planschleifmaschine, insbesondere eine Doppelplanschleifmaschine, mit einem vorstehend beschriebenen Werkstückhalter.The invention further relates to a surface grinding machine, in particular a double-plan grinding machine, with a workpiece holder described above.

Weitere Merkmale und Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung und der zeichnerischen Darstellung bevorzugter Ausführungsbeispiele.Further features and advantages of the invention are the subject of the following description and the drawings of preferred embodiments.

In den Zeichnungen zeigen:

Figur 1
eine Draufsicht einer Ausführungsform eines Werkstückhalters für eine Planschleifmaschine;
Figur 2
eine Seitenansicht des Werkstückhalters gemäß Figur 1 längs einer in Figur 1 mit II-II bezeichneten Schnittebene;
Figur 3
eine geschnittene Seitenansicht einer Verbindungseinrichtung, mittels welcher Halterteile des Werkstückhalters gemäß Figur 1 relativ zueinander fixierbar sind;
Figur 4
eine Draufsicht eines Werkstückhalters für eine Planschleifmaschine bekannt aus dem Stand der Technik;
Figur 5
eine Seitenansicht des Werkstückhalters gemäß Figur 4 längs einer in Figur 4 mit V-V bezeichneten Schnittebene;
In the drawings show:
FIG. 1
a plan view of an embodiment of a workpiece holder for a surface grinding machine;
FIG. 2
a side view of the workpiece holder according to FIG. 1 along a in FIG. 1 sectional plane designated II-II;
FIG. 3
a sectional side view of a connecting device, by means of which holder parts of the workpiece holder according to FIG. 1 can be fixed relative to each other;
FIG. 4
a top view of a workpiece holder for a surface grinding machine known from the prior art;
FIG. 5
a side view of the workpiece holder according to FIG. 4 along a in FIG. 4 sectional plane designated VV;

In der Figur 1 ist eine Ausführungsform eines insgesamt mit dem Bezugszeichen 10 bezeichneten Werkstückhalters dargestellt. Der Werkstückhalter 10 weist eine zentrische Werkstückhalterachse 12 auf, um welche der Werkstückhalter 10 rotierend antreibbar ist. Der Werkstückhalter 10 weist einen Befestigungsabschnitt 14 zur Befestigung des Werkstückhalters an einer Drehantriebseinrichtung einer Planschleifmaschine auf. Der Befestigungsabschnitt 14 ist insbesondere in Form eines konzentrisch zu der Werkstückhalterachse 12 angeordneten Durchbruchs ausgebildet.In the FIG. 1 is an embodiment of a generally designated by the reference numeral 10 workpiece holder shown. The workpiece holder 10 has a centric workpiece holder axis 12 about which the workpiece holder 10 can be driven in rotation. The workpiece holder 10 has a fastening section 14 for fastening the workpiece holder to a rotary drive device of a surface grinding machine. The attachment portion 14 is formed in particular in the form of a concentric with the workpiece holder axis 12 arranged breakthrough.

Der Werkstückhalter 10 weist eine Scheibenform auf, insbesondere eine Kreisscheibenform. Der Durchmesser des Werkstückhalters 10 beträgt beispielsweise mindestens ungefähr 50 cm. Demgegenüber ist eine in Figur 2 mit 16 bezeichnete Dicke des Werkstückhalters 10 klein und beträgt beispielsweise höchstens ungefähr 2 cm.The workpiece holder 10 has a disk shape, in particular a circular disk shape. The diameter of the workpiece holder 10 is for example at least about 50 cm. In contrast, an in FIG. 2 denoted by 16 thickness of the workpiece holder 10 is small and is for example at most about 2 cm.

Der Werkstückhalter 10 weist zwei scheibenförmige Halterteile auf, nämlich ein erstes Halterteil 18 und ein zweites Halterteil 20. Das Halterteil 18 ist in Gebrauchslage des Werkstückhalters 10 beispielsweise oben angeordnet und das zweite Halteteil 20 unten.The workpiece holder 10 has two disk-shaped holder parts, namely a first holder part 18 and a second holder part 20. The holder part 18 is arranged in the position of use of the workpiece holder 10, for example, top and the second holding member 20 below.

Die Halterteile 18 und 20 erstrecken sich in zueinander parallelen Bewegungsebenen 22 beziehungsweise 24. Die Halterteile 18 und 20 sind in ihren zugeordneten Bewegungsebenen 22 und 24 um die Werkstückhalterachse 12 drehbar.The holder parts 18 and 20 extend in mutually parallel planes of movement 22 and 24, respectively Holder parts 18 and 20 are rotatable in their associated movement planes 22 and 24 about the workpiece holder axis 12.

Wenn, wie in Figur 2 dargestellt, das untere Halterteil 20 eine größere Materialstärke aufweist als das obere Halterteil 18, weist das untere Halterteil 20 einen höheren Verformungswiderstand auf und bildet somit ein flächiges Auflager für ein dünneres oberes Halterteil 18.If, as in FIG. 2 illustrated, the lower holder member 20 has a greater material thickness than the upper holder member 18, the lower holder member 20 has a higher deformation resistance and thus forms a planar support for a thinner upper holder member 18th

Der Werkstückhalter 10 weist eine Mehrzahl von Werkstückaufnahmen 26 auf, welche relativ zu der Werkstückhalteachse 12 denselben radialen Abstand aufweisen. Die Werkstückaufnahmen 26 sind darüber hinaus in Umfangsrichtung identisch relativ zueinander beabstandet.The workpiece holder 10 has a plurality of workpiece holders 26 which have the same radial distance relative to the workpiece holder axis 12. The workpiece holders 26 are also circumferentially identically spaced relative to each other.

Die Halterteile 18 und 20 weisen jeweils Werkstückaufnahmenbegrenzungen auf, welche mittels Durchbrüchen in den Halterteilen 18 und 20 gebildet sind. Das erste Halterteil 18 weist umfangsseitig geschlossene Werkstückaufnahmenbegrenzungen 28 auf, welche, wie in der Zeichnung dargestellt, beispielsweise ringsegmentförmig sind. Das zweite Halterteil 20 weist ebenfalls eine Mehrzahl von Werkstückaufnahmebegrenzungen 30 auf, welche vorzugsweise ebenfalls im Wesentlichen ringsegmentförmig ausgebildet sind.The holder parts 18 and 20 each have workpiece receiving limits, which are formed by means of openings in the holder parts 18 and 20. The first holder part 18 has circumferentially closed workpiece receiving limits 28, which, as shown in the drawing, for example, are ring-segment-shaped. The second holder part 20 also has a plurality of workpiece receiving limits 30, which are preferably also formed substantially annular segment-shaped.

Die Werkstückaufnahmenbegrenzungen 28 und 30 überlappen einander, so dass in einem Überlappungsbereich in der Draufsicht des Werkstückhalters 10 gesehen ein Durchbruch entsteht, in welchem ein in Figur 1 schraffiert angedeutetes Werkstück 32 aufnehmbar ist. Das Werkstück 32 erstreckt sich in einer zu der Werkstückhalterachse 12 parallelen Richtung zumindest über eines der Halterteile 18 und 20 hinaus.The work piece receiving limits 28 and 30 overlap one another, so that seen in an overlap region in the plan view of the workpiece holder 10, an opening is formed, in which a in FIG. 1 hatched indicated workpiece 32 is receivable. The workpiece 32 extends in a direction parallel to the workpiece holder axis 12 at least over one of the holder parts 18 and 20 addition.

Durch die Verdrehbarkeit der Halterteile 18 und 20 relativ zueinander ist die Größe der durch die Werkstückaufnahmenbegrenzungen 28 und 30 gemeinsam gebildeten Werkstückaufnahmen 26 stufenlos einstellbar.Due to the rotatability of the holder parts 18 and 20 relative to one another, the size of the workpiece holders 26 jointly formed by the workpiece holder limiters 28 and 30 is infinitely adjustable.

Das erste Halterteil 18 weist ferner ein Werkstückaufnahmenbegrenzungselement 33 auf, welches in die Bewegungsebene 24 des zweiten Halterteils 20 hineinragt und sich in einen durch die Werkstückaufnahmenbegrenzung 30 umgrenzten Raum hinein erstreckt. Das Werkstückaufnahmenbegrenzungselement 33 ist über eine Verbindung 34 in Form einer Schraubverbindung 36 lösbar mit dem ersten Halterteil 18 verbunden.The first holder part 18 further has a workpiece holder limiting element 33, which projects into the movement plane 24 of the second holder part 20 and extends into a space bounded by the workpiece holder boundary 30. The workpiece holder limiting element 33 is detachably connected to the first holder part 18 via a connection 34 in the form of a screw connection 36.

Das Werkstückaufnahmenbegrenzungselement 33 dient dazu, einen Begrenzungsabschnitt 38 der Werkstückaufnahmenbegrenzung 28 des ersten Halteteils 18 in zu der Werkstückhalterachse 12 paralleler Richtung zu verlängern. Hierfür weist das Werkstückaufnahmenbegrenzungselement 33 eine Begrenzungsfläche 40 auf.The workpiece holder limiting element 33 serves to extend a limiting section 38 of the workpiece holder boundary 28 of the first holding part 18 in a direction parallel to the workpiece holder axis 12. For this purpose, the Werkstückaufnahmenbegrenzungselement 33 has a boundary surface 40.

In dem dargestellten Ausführungsbeispiel ist die Position des Werkstückaufnahmenbegrenzungselements 33 durch eine Bohrung 42 in dem ersten Halterteil 18 vorgegeben. Bei einer alternativen, in der Zeichnung nicht dargestellten Ausführungsform ist die Position des Werkstückaufnahmenbegrenzungselements 33 relativ zu dem ersten Halterteil 18 einstellbar, beispielsweise durch Verwendung von Langlöchern.In the illustrated embodiment, the position of the Werkstückaufnahmenbegrenzungselements 33 is predetermined by a bore 42 in the first holder part 18. In an alternative embodiment, not shown in the drawing, the position of the workpiece holder limiting element 33 is adjustable relative to the first holder part 18, for example by using elongated holes.

Die Werkstückaufnahmenbegrenzung 30 des zweiten Halterteils 20 weist einen Aufnahmeabschnitt 44 auf, welcher der Form des Werkstückaufnahmenbegrenzungselements 33 angepasst ist.The workpiece holder boundary 30 of the second holder part 20 has a receiving portion 44, which is adapted to the shape of the workpiece holder limiting element 33.

In dem Aufnahmeabschnitt 44 kann das Werkstückaufnahmenbegrenzungselement 33 aufgenommen werden, wenn die Halterteile 18 und 20 so relativ zueinander eingestellt werden, dass die Größe der Werkstückaufnahmen 26 maximiert ist.In the receiving portion 44, the workpiece receiving limiting element 33 can be received when the holder parts 18 and 20 are adjusted relative to each other so that the size of the workpiece holders 26 is maximized.

Die Halterteile 18 und 20 sind mit Hilfe einer in Figur 3 dargestellten Verbindungseinrichtung 46 relativ zueinander fixierbar. Die Befestigungseinrichtung 46 ist vorzugsweise in Form einer Befestigungseinrichtung 48 ausgebildet, mittels welcher der Werkstückhalter 10 drehfest mit einer Drehantriebseinrichtung 50 einer Planschleifmaschine verbunden ist.The holder parts 18 and 20 are using a in FIG. 3 illustrated connecting device 46 relative to each other fixed. The fastening device 46 is preferably designed in the form of a fastening device 48, by means of which the workpiece holder 10 is non-rotatably connected to a rotary drive device 50 of a surface grinding machine.

Die Drehantriebseinrichtung 50 umfasst eine Antriebswelle 52, welche über eine Klemmeinrichtung 54 mit einem Gehäuseteil 56 drehfest verbunden ist. Die Antriebswelle 52 ist über einen Gewindeabschnitt 58 mit einem Bolzen 60 verbunden, welcher den Befestigungsabschnitt 14 des Werkstückhalters 10 durchragt. Der Bolzen 60 ist an seinem der Drehantriebseinrichtung 50 abgewandten Ende mit einer hydraulischen Spannmutter 62 verbunden. Die Spannmutter 62 wirkt über eine Spannlocke 64 und über einen Distanzring 66 auf eine Oberseite des Halterteils 18.The rotary drive device 50 includes a drive shaft 52, which is rotatably connected via a clamping device 54 with a housing part 56. The drive shaft 52 is connected via a threaded portion 58 with a bolt 60 which extends through the attachment portion 14 of the workpiece holder 10. The bolt 60 is connected at its end remote from the rotary drive device 50 with a hydraulic clamping nut 62. The clamping nut 62 acts via a tensioning lock 64 and via a spacer ring 66 on an upper side of the holder part 18.

Das Gehäuseteil 56 weist einen schulterförmigen Absatz 68 auf, auf welchem ein Distanzring 70 gelagert ist. Auf dem Distanzring 70 ist ein weiterer Distanzring 72 gelagert.The housing part 56 has a shoulder-shaped shoulder 68, on which a spacer ring 70 is mounted. On the spacer ring 70, a further spacer ring 72 is mounted.

Der Werkstückhalter 10 mit seinen Halterteilen 18 und 20 ist zwischen den auf einander gegenüberliegenden Seiten des Werkstückhalters angeordneten Distanzelementen 66 und 72 eingeklemmt. Hierdurch kann einerseits eine Drehbewegung der Antriebswelle 52 auf den Werkstückhalter 10 übertragen werden. Andererseits kann hierdurch eine Fixierung der Halterteile 18 und 20 relativ zueinander erreicht werden.The workpiece holder 10 with its holder parts 18 and 20 is clamped between the spacer elements 66 and 72 arranged on opposite sides of the workpiece holder. In this way, on the one hand, a rotational movement of the drive shaft 52 can be transmitted to the workpiece holder 10 become. On the other hand, this allows a fixation of the holder parts 18 and 20 are achieved relative to each other.

Um zu erreichen, dass die Drehachse der Antriebseinrichtung 50 mit der Werkstückhalterachse 12 fluchtet, ist ein Zentrierring 74 vorgesehen, welcher an der Spannglocke 64 gelagert ist und in Anlage mit dem Befestigungsabschnitt 14 des Werkstückhalters 10 steht.In order to achieve that the axis of rotation of the drive device 50 is aligned with the workpiece holder axis 12, a centering ring 74 is provided, which is mounted on the clamping cup 64 and is in contact with the mounting portion 14 of the workpiece holder 10.

Zum Schutz der Klemmeinrichtung 54 ist ferner ein ringförmiges Abdichtelement 76 vorgesehen.To protect the clamping device 54, an annular sealing element 76 is further provided.

In den Figuren 4 und 5 ist ein Werkstückhalter 10 bekannt aus dem Stand der Technik dargestellt. Der Werkstückhalter 10 gemäß Figuren 4 und 5 weist im Unterschied zu dem vorstehend beschriebenen Werkstückhalter 10 ein drittes Halterteil 78 auf, welches ebenfalls scheibenförmig ausgebildet ist. Das dritte Halterteil 78 ist beispielsweise zwischen dem ersten Halterteil 18 und dem zweiten Halterteil 20 angeordnet.In the FIGS. 4 and 5 is a workpiece holder 10 is known from the prior art. The workpiece holder 10 according to FIGS. 4 and 5 has, in contrast to the workpiece holder 10 described above, a third holder part 78, which is also disc-shaped. The third holder part 78 is arranged, for example, between the first holder part 18 and the second holder part 20.

Die Halterteile 18, 20 und 78 sind relativ zueinander um eine zentrische Werkstückhalterachse 12 drehbar. Die Halterteile 18 und 78 sind an dem Halterteil 20 gelagert. Hierfür weist das Halterteil 20 eine taschenförmige, kreisförmige Vertiefung 82 auf, in welcher die Halterteile 18 und 78 aufgenommen sind.The holder parts 18, 20 and 78 are rotatable relative to each other about a central workpiece holder axis 12. The holder parts 18 and 78 are mounted on the holder part 20. For this purpose, the holder part 20 has a pocket-shaped, circular recess 82 in which the holder parts 18 and 78 are received.

Das zweite Halteteil 20 weist umfangsseitig geschlossene Werkstückaufnahmenbegrenzungen 30 auf. Das zweite Halterteil 18 weist nach radial außen weisende, umfangsseitig offene Werkstückaufnahmenbegrenzungen 28 auf, welches sich in der Draufsicht des Werkstückhalters 10 gesehen nutförmig in Richtung auf die Werkstückhalterachse 12 erstrecken.The second holding part 20 has circumferentially closed workpiece receiving limits 30. The second holder part 18 has radially outwardly pointing, peripherally open workpiece holder boundaries 28, which, viewed in the plan view of the workpiece holder 10, extend in the shape of a groove in the direction of the workpiece holder axis 12.

Das dritte Halterteil 78 weist ebenfalls eine nach radial außen weisende und umfangsseitig offene Werkstückaufnahmeraumbegrenzung 80 auf.The third holder part 78 also has a radially outwardly facing and peripherally open workpiece receiving space boundary 80.

Die Werkstückaufnahmeraumbegrenzungen 28, 30 und 80 erstrecken sich in bezogen auf die Werkstückhalterachse 12 zueinander versetzten Ebenen. Die genannten Werkstückaufnahmeraumbegrenzungen bilden gemeinsam jeweils eine Werkstückaufnahme 26. In jeder Werkstückaufnahme kann insbesondere genau ein Werkstück 32 mit einer runden Außengeometrie zuverlässig befestigt werden. Hierbei liegt das Werkstück 32 mit unterschiedlichen Werkstückabschnitten an allen Werkstückaufnahmenbegrenzungen 28, 30 und 80 an. Hierbei wird das Werkstück 32 mit Hilfe der Werkstückaufnahmenbegrenzungen 28 und 80 nach radial außen gegen einen nach radial innen weisenden Abschnitt der Werkstückaufnahmenbegrenzung 30 gedrückt.The Werkstückaufnahmeraumbegrenzungen 28, 30 and 80 extend in relation to the workpiece holder axis 12 mutually offset planes. The abovementioned workpiece receiving space boundaries jointly form a workpiece holder 26 in each case. In particular, precisely one workpiece 32 with a round outer geometry can be reliably fastened in each workpiece holder. In this case, the workpiece 32 rests with different workpiece sections on all workpiece holder limits 28, 30 and 80. In this case, the workpiece 32 is pressed with the aid of the workpiece holder boundaries 28 and 80 radially outward against a radially inwardly facing portion of the workpiece holder boundary 30.

Im Übrigen wird für den mit Bezug auf die Figuren 4 und 5 beschriebenen Werkstückhalter 10 auf die vorstehende Beschreibung des Werkstückhalters 10 gemäß Figuren 1 und 3 Bezug genommen.Incidentally, for with respect to the FIGS. 4 and 5 described workpiece holder 10 in the above description of the workpiece holder 10 according to FIGS. 1 and 3 Referenced.

Der Werkstückhalter 10 gemäß Figuren 1 bis 3 eignet sich besonders gut für eckig begrenzte Werkstücke 32, beispielsweise rechteckige oder quadratische Teile. Der in den Figuren 4 und 5 dargestellte Werkstückhalter 10 eignet sich besonders gut zum Halten runder Teile.The workpiece holder 10 according to FIGS. 1 to 3 is particularly suitable for angularly limited workpieces 32, such as rectangular or square parts. The in the FIGS. 4 and 5 shown workpiece holder 10 is particularly suitable for holding round parts.

Es ist möglich, dass ein Werkstückhalter 10 nicht nur zwei oder drei Halterteile, sondern vier oder auch mehr Halterteile aufweist.It is possible that a workpiece holder 10 has not only two or three holder parts, but four or more holder parts.

Claims (14)

  1. A workpiece holder (10) for a surface grinding machine with a central workpiece holder axis (12) around which the workpiece holder (10) can be driven in rotation, and with at least one workpiece fixture (26) to hold at least one workpiece (32), with at least two holder parts (18, 20, 78) movable relative to one another that jointly frame the at least one workpiece fixture (26) and that can be fixed relative to one another by means of a joining device (46), characterized in that at least one of the holder parts (18) has at least one workpiece fixture frame element (33) that penetrates into a plane of motion (24) of another holder part (20).
  2. The workpiece holder (10) according to claim 1, characterized in that the holder parts (18, 20, 78) can rotate relative to one another.
  3. The workpiece holder (10) according to one of the preceding claims, characterized in that each of the holder parts (18, 20, 78) can rotate around the workpiece holder axis (12).
  4. The workpiece holder (10) according to one of the preceding claims, characterized in that each of the holder parts (18, 20, 78) borders a plurality of workpiece fixtures (26).
  5. The workpiece holder (10) according to claim 4, characterized in that at least two of the plurality of workpiece fixtures (26) are spaced identically in the radial direction from the workpiece holder axis (12).
  6. The workpiece holder (10) according to claim 4 or 5, characterized in that the workpiece fixtures (26) are spaced identically relative to one another in the circumferential direction.
  7. The workpiece holder (10) according to one of the preceding claims, characterized in that at least one of the holder parts (18, 20) has a circumferentially closed workpiece fixture frame (28, 30).
  8. The workpiece holder (10) according to one of the preceding claims, characterized in that at least one of the holder parts (78) has a circumferentially open workpiece fixture frame (80).
  9. The workpiece holder (10) according to claim 8, characterized in that the circumferentially open workpiece fixture frame (80) points radially outward.
  10. The workpiece holder (10) according to one of the preceding claims, characterized in that the holder parts (18, 20) extend in planes of motion (22, 24) parallel to one another.
  11. The workpiece holder (10) according to one of the preceding claims, characterized in that the holder parts (18, 20, 78) are mounted on one another.
  12. The workpiece holder (10) according to one of the preceding claims, characterized in that the joining device (46) is collinear with the workpiece holder axis (12).
  13. The workpiece holder (10) according to one of the preceding claims, characterized in that the joining device (46) is formed by a fastening device (48) for fastening the workpiece holder (10) to a rotary drive device (50) of a surface grinding machine.
  14. A surface grinding machine comprising a workpiece holder (10) according to one of the preceding claims.
EP09007670A 2009-06-10 2009-06-10 Workpiece holder for a surface grinding machine Not-in-force EP2260974B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES09007670T ES2357796T3 (en) 2009-06-10 2009-06-10 PART SUPPORT FOR A FLAT SURFACE RECTIFIER.
AT09007670T ATE497856T1 (en) 2009-06-10 2009-06-10 WORKPIECE HOLDER FOR A SURFACE GRINDING MACHINE
EP09007670A EP2260974B1 (en) 2009-06-10 2009-06-10 Workpiece holder for a surface grinding machine
DE502009000369T DE502009000369D1 (en) 2009-06-10 2009-06-10 Workpiece holder for a surface grinding machine
CN2010102030272A CN101920474A (en) 2009-06-10 2010-06-10 The work piece holder that is used for surface grinding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09007670A EP2260974B1 (en) 2009-06-10 2009-06-10 Workpiece holder for a surface grinding machine

Publications (2)

Publication Number Publication Date
EP2260974A1 EP2260974A1 (en) 2010-12-15
EP2260974B1 true EP2260974B1 (en) 2011-02-09

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EP09007670A Not-in-force EP2260974B1 (en) 2009-06-10 2009-06-10 Workpiece holder for a surface grinding machine

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CN (1) CN101920474A (en)
AT (1) ATE497856T1 (en)
DE (1) DE502009000369D1 (en)
ES (1) ES2357796T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103466106B (en) * 2013-08-29 2015-07-08 北京兴华机械厂 Tool and method for adjusting mounting accuracy of flexible pendulous accelerometer
CN104108056B (en) * 2014-07-04 2016-08-24 德昌电机（南京）有限公司 Chord length grinding machine
CN104142347A (en) * 2014-07-21 2014-11-12 重庆颖泉标准件有限公司 Part indexing rotary disc of standard fastener detection device
CN108655952B (en) * 2018-04-27 2023-08-25 苏州富强科技有限公司 Carrier mechanism for polishing upper and lower groove bodies

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE425457C (en) * 1923-05-01 1926-02-20 Hitzemann & Sielemann Fa Workpiece holder for machines for simultaneous double-sided machining of workpieces
DE2551804C3 (en) * 1975-11-14 1978-08-10 Angis-Anstalt, Mauren (Liechtenstein) Device for chamfering or sharpening of workpieces, each consisting of a cylindrical shaft with a head
PL118226B1 (en) * 1978-07-27 1981-09-30 Osrodek Badawczo Rozwojowy Prz Method of and apparatus for feeding and chucking workpieces in rotary disks of multi-spindle machine toolsv v povorotnojj shajjbe mnogoshpindel'nykh stankov
DE2900009A1 (en) 1979-01-02 1980-07-10 Hugo Beck Machine tool workpiece loading device - automatically centres workpieces between sliding jaws of clamp
US4388989A (en) * 1981-07-23 1983-06-21 Hoppmann Corporation Continuous rotary method of transporting articles
DE10345335B4 (en) * 2003-09-22 2012-04-26 Supfina Grieshaber Gmbh & Co. Kg Surface grinding machine and method for controlling
DE102006044687A1 (en) * 2006-09-21 2008-03-27 Peter Wolters Ag Rotor disk for machine tool, has toothing at periphery for engaging in gear ring or pin rim of machine tool, where disk is provided with set of boreholes lying parallel with each other in area of retention holes

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Publication number Publication date
ATE497856T1 (en) 2011-02-15
DE502009000369D1 (en) 2011-03-24
CN101920474A (en) 2010-12-22
ES2357796T3 (en) 2011-04-29
EP2260974A1 (en) 2010-12-15

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