EP1215012A2 - Workpiece holder for grinding machine - Google Patents

Workpiece holder for grinding machine Download PDF

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Publication number
EP1215012A2
EP1215012A2 EP01128664A EP01128664A EP1215012A2 EP 1215012 A2 EP1215012 A2 EP 1215012A2 EP 01128664 A EP01128664 A EP 01128664A EP 01128664 A EP01128664 A EP 01128664A EP 1215012 A2 EP1215012 A2 EP 1215012A2
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EP
European Patent Office
Prior art keywords
workpiece
workpiece holder
clamping
rotary tables
holder according
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.)
Withdrawn
Application number
EP01128664A
Other languages
German (de)
French (fr)
Other versions
EP1215012A3 (en
Inventor
Istvan Balogh
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.)
Blohm Maschinenbau GmbH
Original Assignee
Blohm Maschinenbau GmbH
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.)
Filing date
Publication date
Application filed by Blohm Maschinenbau GmbH filed Critical Blohm Maschinenbau GmbH
Publication of EP1215012A2 publication Critical patent/EP1215012A2/en
Publication of EP1215012A3 publication Critical patent/EP1215012A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • 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

Definitions

  • the invention relates to a workpiece holder for a grinding machine, in particular a profile grinding machine.
  • the invention has for its object a universal, safe and specify stable workpiece holder.
  • the clamping heads expediently form parts of two turntables, whose horizontally aligned axes of rotation are aligned with one another.
  • the complexity of the grinding tasks is further increased by the fact that the turntables are designed as part apparatuses that can be rotated about the workpiece.
  • practically unlimited machining flexibility can be achieved.
  • the clamping heads can equip with interchangeable clamping segments, which are each adapted to the shape of the workpieces to be picked up.
  • a preferred development on the other hand, consists in the fact that the clamping heads have a clamping jaws of the workpiece that absorb the workpiece shape and that neutralize the workpiece shape.
  • Such a design is particularly useful in the case of complicated spatially curved turbine blades in which the sprue clamping block encloses the airfoil while the head and foot region are to be ground.
  • safe workpiece handling and guidance is ensured in that synchronous drives are assigned to the rotary tables.
  • the workpiece holder receives a further degree of freedom for machining all conceivable profile surfaces in that the two rotary tables having the clamping heads are arranged on a common third rotary table, the axis of rotation of which extends transversely to the axes of rotation of the two rotary tables.
  • a flexible adaptation and setup for different workpiece dimensions is ensured by a further embodiment in that the two rotary tables are arranged so as to be displaceable relative to one another parallel to their axes of rotation on the third rotary table.
  • the advantage achieved by the invention is that the profile zones to be machined of irregularly shaped components in any case with the grinding wheel be brought into contact with a collision of clamping devices and grinding wheel is prevented. In this way, in particular All-round head and foot machining of turbine blades without problems in one Clamping possible.
  • the workpiece holder 1 shown in Figure 1 is part of a not shown Profile grinding machine 2, on which in the exemplary embodiment according to FIGS up to 7 workpieces in the form of turbine blades 3 on head 4 and base 6 by means of be ground according to interchangeable profile grinding wheels 7.
  • the workpiece 3 can be tracked in the respective region of the selected rotational position when grinding curved profile surfaces.
  • An additional degree of freedom is obtained in that the two aligned rotary tables 16, 17 are arranged on a common third rotary table 23, the axis of rotation 24 of which extends 90 ° transversely to the axes of rotation 18, 19 of the two first rotary tables 16, 17, so that one practically unlimited accessibility of all profile surfaces to be machined in a single clamping of the workpiece results in complete machining in a single clamping.
  • Examples of such a variety of grinding tasks are various engagement positions between profile grinding wheel 7 and head 4 or foot 6 that can be realized in different rotational positions of the rotary axis 24 of the rotary table 23 according to FIGS. 2 and 3 in combination with different rotary positions of the rotary axes 18, 19 of the rotary tables 16, 17 the turbine blade 3 can be seen in FIGS. 4 to 7.
  • the two rotary tables 16, 17 are arranged on the third rotary table 23 so as to be displaceable relative to one another parallel to their axes of rotation 18, 19.
  • the clamping heads 13, 14 of the two rotary tables 16 and 17 can be equipped with different clamping inserts or clamping claws 12 in adaptation to the shape of the bodies to be clamped.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

Two rotarily adjustable clamping heads (13,14) hold the opposite facing end sections (9,11)of the workpiece (3). The clamping heads form parts of two turntables (16,17) whose horizontal rotary axes (18,19) are flush with each other. The clamping heads have clamping jaws (12) holding the workpiece mold neutralizing the casting clamping block (8) of the workpieces

Description

Die Erfindung betrifft eine Werkstückaufnahme für eine Schleifmaschine, insbesondere eine Profilschleifmaschine.The invention relates to a workpiece holder for a grinding machine, in particular a profile grinding machine.

Komplexe Bauteile mit zahlreichen räumlich orientierten Profilflächen, wie zum Beispiel Turbinenschaufeln mit komplizierten Profilen ihrer unterschiedlichen Fuß- und Kopfausführungen, werden üblicherweise einer Komplettbeareitung unterzogen, um ein häufiges Umspannen und damit einhergehende Bearbeitungsungenauigkeiten zu vermeiden.
Die im Verlauf dieser Komplettbearbeitung zwangläufig erforderlichen, wechselnden Schwenk- und Drehbewegungen in mehreren Achsen können insbesondere beim Einsatz großer Schleifscheiben gegebenenfalls zu Kollisionen zwischen Werkstückaufnahme und Schleifscheibe führen, insbesondere im Bereich der steifigkeitsbestimmenden Auflage.Complex components with numerous spatially oriented profile surfaces, such as turbine blades with complicated profiles of their different foot and head designs, are usually subjected to complete spreading in order to avoid frequent reclamping and the associated inaccurate machining.
The changing swiveling and rotating movements in several axes, which are inevitably necessary in the course of this complete machining, can possibly lead to collisions between the workpiece holder and the grinding wheel, especially when using large grinding wheels, in particular in the area of the stiffness-determining support.

Der Erfindung liegt die Aufgabe zugrunde, eine universell einsetzbare, sichere und stabile Werkstückhalterung anzugeben. The invention has for its object a universal, safe and specify stable workpiece holder.

Diese Aufgabe wird erfindungsgemäß gelöst durch zwei das Werkstück an gegenüberliegenden Endabschnitten aufnehmende, rotativ einstellbare Spannköpfe.This object is achieved according to the invention by two opposing the workpiece End sections receiving, rotatably adjustable clamping heads.

Gemäß der DE 43 44 538 A1 ist es zwar bekannt, auf einer Rundschleifmaschine rotationssymmetrische Werkstücke mittels zweier synchron antreibbarer Spindeleinheiten derart stirnseitig drehschlüssig zu spannen, dass das rotierende Werkstück bis zu den Stirnflächen überschliffen werden kann.
Im Unterschied hierzu sind erfindungsgemäß räumlich beliebig orientierte Profilflächen in definierten Drehwinkelstellungen oder gesteuert nachgeführten Drehwinkellagen der Werkstückaufnahme bearbeitbar.According to DE 43 44 538 A1, it is known to clamp rotationally symmetrical workpieces on a cylindrical grinding machine by means of two synchronously drivable spindle units in such a way that the rotating workpiece can be ground up to the end faces.
In contrast to this, according to the invention, profiled surfaces which are oriented in any desired spatial manner can be machined in defined rotational angle positions or controlled rotational angular positions of the workpiece holder.

Zweckmäßigerweise bilden die Spannköpfe Teile zweier Drehtische, deren horizontal ausgerichtete Drehachsen miteinander fluchten.
Die Komplexität der Schleifaufgaben wird gemäß einer Weiterbildung noch dadurch erhöht, dass die Drehtische als das Werkstück rotativ nachführbare Teilapparate ausgebildet sind. In Verbindung mit einer NC-Steuerung der Drehachsen kann eine praktisch unbegrenzte Bearbeitungsflexibilität erzielt werden.
Es ist denkbar, die Spannköpfe mit austauschbaren Spannsegmenten auszurüsten, die jeweils der Form der aufzunehmenden Werkstücke angepasst sind. Eine bevorzugte Weiterbildung besteht hingegen darin, dass die Spannköpfe einen außerhalb zu bearbeitender Flächenprofile die Werkstückform neutralisierenden Eingussspannblock des Werkstücks aufnehmende Spannbacken aufweisen. Eine derartige Ausbildung bietet sich insbesondere bei komplizierten räumlich gekrümmten Turbinenschaufeln an, bei denen der Eingussspannblock das Schaufelblatt umschließt, während der Kopf- und Fußbereich geschliffen werden sollen.
Eine sichere Werkstückhandhabung und Führung wird nach einem weiteren Vorschlag dadurch gewährleistet, dass den Drehtischen Synchronantriebe zugeordnet sind. The clamping heads expediently form parts of two turntables, whose horizontally aligned axes of rotation are aligned with one another.
According to a further development, the complexity of the grinding tasks is further increased by the fact that the turntables are designed as part apparatuses that can be rotated about the workpiece. In connection with an NC control of the rotary axes, practically unlimited machining flexibility can be achieved.
It is conceivable to equip the clamping heads with interchangeable clamping segments, which are each adapted to the shape of the workpieces to be picked up. A preferred development, on the other hand, consists in the fact that the clamping heads have a clamping jaws of the workpiece that absorb the workpiece shape and that neutralize the workpiece shape. Such a design is particularly useful in the case of complicated spatially curved turbine blades in which the sprue clamping block encloses the airfoil while the head and foot region are to be ground.
According to a further proposal, safe workpiece handling and guidance is ensured in that synchronous drives are assigned to the rotary tables.

Die Werkstückaufnahme erhält nach einem zusätzlichen Vorschlag einen weiteren Freiheitsgrad zwecks Bearbeitung aller denkbaren Profilflächen dadurch, dass die beiden die Spannköpfe aufweisenden Drehtische auf einem gemeinsamen dritten Drehtisch angeordnet sind, dessen Drehachse quer zu den Drehachsen der beiden Drehtische verläuft.
Eine flexible Anpassung und Einrichtung für unterschiedliche Werkstückabmessungen ist durch eine weitere Ausgestaltung dadurch gewährleistet, dass die beiden Drehtische parallel zu ihren Drehachsen auf dem dritten Drehtisch relativ zueinander verschiebbar angeordnet sind.According to an additional proposal, the workpiece holder receives a further degree of freedom for machining all conceivable profile surfaces in that the two rotary tables having the clamping heads are arranged on a common third rotary table, the axis of rotation of which extends transversely to the axes of rotation of the two rotary tables.
A flexible adaptation and setup for different workpiece dimensions is ensured by a further embodiment in that the two rotary tables are arranged so as to be displaceable relative to one another parallel to their axes of rotation on the third rotary table.

Der mit der Erfindung erzielte Vorteil besteht darin, dass die zu bearbeitenden Profilzonen von unregelmäßig geformten Bauteilen in jedem Fall derart mit der Schleifscheibe in Kontakt gebracht werden, dass mit Sicherheit eine Kollision von Spannmitteln und Schleifscheibe unterbunden wird. Auf diese Weise ist insbesondere eine allseitige Kopf- und Fußbearbeitung von Turbinenschaufeln problemlos in einer einzigen Einspannung möglich. The advantage achieved by the invention is that the profile zones to be machined of irregularly shaped components in any case with the grinding wheel be brought into contact with a collision of clamping devices and grinding wheel is prevented. In this way, in particular All-round head and foot machining of turbine blades without problems in one Clamping possible.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is described below using an exemplary embodiment shown in the drawing explained in more detail.

Hierbei zeigen:

Figur 1
eine Werkstückaufnahme gemäß der Erfindung an einer teilweise dargestellten Profilschleifmaschine,
Figur 2
eine Draufsicht auf die Werkstückaufnahme gemäß Figur 1,
Figur 3
eine Draufsicht auf eine anderer Arbeitsstellung der Werkstückaufnahme und
Figuren 4 bis 7
verschiedene Arbeitsstellungen unterschiedlicher Profilschleifscheiben im Eingriff mit dem Kopf- oder Fußbereich einer Turbinenschaufel.
Here show:
Figure 1
a workpiece holder according to the invention on a profile grinding machine partially shown,
Figure 2
2 shows a plan view of the workpiece holder according to FIG. 1,
Figure 3
a plan view of another working position of the workpiece holder and
Figures 4 to 7
Different working positions of different profile grinding wheels in engagement with the head or foot area of a turbine blade.

Die in Figur 1 gezeigte Werkstückaufnahme 1 ist Teil einer nicht weiter dargestellten Profilschleifmaschine 2, auf der im Ausführungsbeispiel gemäß den Figuren 1 bis 7 Werkstücke in Form von Turbinenschaufeln 3 an Kopf 4 und Fuß 6 mittels entsprechend auswechselbarer Profilschleifscheiben 7 geschliffen werden.The workpiece holder 1 shown in Figure 1 is part of a not shown Profile grinding machine 2, on which in the exemplary embodiment according to FIGS up to 7 workpieces in the form of turbine blades 3 on head 4 and base 6 by means of be ground according to interchangeable profile grinding wheels 7.

Zum Einspannen der Turbinenschaufel 3 ist diese im Bereich des Schaufelblattes in einen Eingussspannblock 8 eingebettet, dessen gegenüberliegende Endabschnitte 9, 11 mittels dreier Spannpratzen 12 in zwei gegenüberliegenden Spannköpfen 13, 14 der zweigeteilten Werkstückaufnahme 1 verankert sind. Diese rotativ einstellbaren Spannköpfe 13, 14 sind Teile von zwei Drehtischen 16, 17 der Werkstückaufnahme 1, deren horizontal ausgerichtete Drehachsen 18, 19 miteinander fluchten und über motorische Antriebe 21, 22 elektrisch oder mechanisch synchronisiert sind. Auf diese Weise kann das Werkstück 3 um 180° gedreht werden und somit auch beim Einsatz größerer Schleifscheiben ohne Kollision mit der Werkstückaufnahme an Kopf und Fuß auf gegenüberliegenden Seiten geschliffen werden.To clamp the turbine blade 3, this is in the area of the blade in embedded a sprue 8, the opposite end portions 9, 11 by means of three clamping claws 12 in two opposing clamping heads 13, 14 of the two-part workpiece holder 1 are anchored. These rotatably adjustable Clamping heads 13, 14 are parts of two rotary tables 16, 17 of the workpiece holder 1, whose horizontally aligned axes of rotation 18, 19 are aligned and synchronized electrically or mechanically via motor drives 21, 22 are. In this way, the workpiece 3 can be rotated through 180 ° and thus even when using larger grinding wheels without colliding with the workpiece holder be sanded on the head and foot on opposite sides.

Dadurch, dass die Drehtische 16, 17 als Teilapparate ausgebildet sind, kann das Werkstück 3 beim Schleifen gekrümmter Profilflächen im jeweiligen Bereich der ausgewählten Drehstellung nachgeführt werden.
Ein zusätzlicher Freiheitsgrad wird dadurch gewonnen, dass die beiden fluchtenden Drehtische 16, 17 auf einem gemeinsamen dritten Drehtisch 23 angeordnet sind, dessen Drehachse 24 um 90° quer zu den Drehachsen 18, 19 der beiden ersten Drehtische 16, 17 verläuft, so dass sich eine praktisch unbegrenzte Zugänglichkeit aller rundum zu bearbeitenden Profilflächen in einer einzigen Aufspannung der Werkstücks ergibt und damit eine Komplettbearbeitung in einzigen Aufspannung möglich ist.
Als Beispiele für derartige vielfältige Schleifaufgaben sind verschiedene in unterschiedlichen Drehstellungen der Drehachse 24 des Drehtisches 23 gemäß den Figuren 2 und 3 in Kombination mit unterschiedlichen Drehstellungen der Drehachsen 18, 19 der Drehtische 16, 17 realisierbare Eingriffsstellungen zwischen Profilschleifscheibe 7 und Kopf 4 bzw. Fuß 6 der Turbinenschaufel 3 in den Figuren 4 bis 7 erkennbar.
Zur Anpassung an unterschiedliche Werkstückabmessungen sind die beiden Drehtische 16, 17 parallel zu ihren Drehachsen 18, 19 auf dem dritten Drehtisch 23 relativ zueinander verschiebbar angeordnet.
Die Spannköpfe 13, 14 der beiden Drehtische 16 bzw. 17 können in Anpassung an die Form der einzuspannenden Körper mit unterschiedlichen Spanneinsätzen bzw. Spannpratzen 12 ausgestattet sein.Due to the fact that the rotary tables 16, 17 are designed as dividing devices, the workpiece 3 can be tracked in the respective region of the selected rotational position when grinding curved profile surfaces.
An additional degree of freedom is obtained in that the two aligned rotary tables 16, 17 are arranged on a common third rotary table 23, the axis of rotation 24 of which extends 90 ° transversely to the axes of rotation 18, 19 of the two first rotary tables 16, 17, so that one practically unlimited accessibility of all profile surfaces to be machined in a single clamping of the workpiece results in complete machining in a single clamping.
Examples of such a variety of grinding tasks are various engagement positions between profile grinding wheel 7 and head 4 or foot 6 that can be realized in different rotational positions of the rotary axis 24 of the rotary table 23 according to FIGS. 2 and 3 in combination with different rotary positions of the rotary axes 18, 19 of the rotary tables 16, 17 the turbine blade 3 can be seen in FIGS. 4 to 7.
In order to adapt to different workpiece dimensions, the two rotary tables 16, 17 are arranged on the third rotary table 23 so as to be displaceable relative to one another parallel to their axes of rotation 18, 19.
The clamping heads 13, 14 of the two rotary tables 16 and 17 can be equipped with different clamping inserts or clamping claws 12 in adaptation to the shape of the bodies to be clamped.

Claims (7)

Werkstückaufnahme für eine Schleifmaschine, insbesondere eine Profilschleifmaschine, gekennzeichnet durch zwei das Werkstück an gegenüberliegenden Endabschnitten (9, 11) aufnehmende, rotativ einstellbare Spannköpfe (13, 14).Workpiece holder for a grinding machine, in particular a profile grinding machine, characterized by two rotatably adjustable clamping heads (13, 14) receiving the workpiece at opposite end sections (9, 11). Werkstückaufnahme nach Anspruch 1, dadurch gekennzeichnet, dass die Spannköpfe (13, 14) Teile zweier Drehtische (16 bzw. 17) bilden, deren horizontal ausgerichtete Drehachsen (18 bzw. 19) miteinander fluchten.Workpiece holder according to claim 1, characterized in that the clamping heads (13, 14) form parts of two rotary tables (16 and 17), the horizontally aligned axes of rotation (18 and 19) of which are aligned. Werkstückaufnahme nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Drehtische (16, 17) als das Werkstück (3) rotativ nachführbare Teilapparate ausgebildet sind.Workpiece holder according to claim 1 or 2, characterized in that the rotary tables (16, 17) are designed as the workpiece (3) rotatably trackable sub-devices. Werkstückaufnahme nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Spannköpfe (13, 14) einen außerhalb zu bearbeitender Flächenprofile die Werkstückform neutralisierenden Eingussspannblock (8) des Werkstücks (3) aufnehmende Spannbacken (12) aufweisen.Workpiece holder according to one of claims 1 to 3, characterized in that the clamping heads (13, 14) have a cast jaws (8) of the workpiece (3) which accommodate the workpiece shape and which neutralize the workpiece shape and which accommodate the clamping jaws (12). Werkstückaufnahme nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass den Drehtischen (16, 17) Synchronantriebe (21 bzw. 22) zugeordnet sind.Workpiece holder according to one of Claims 1 to 4, characterized in that synchronous drives (21 or 22) are assigned to the rotary tables (16, 17). Werkstückaufnahme nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die beiden die Spannköpfe (13, 14) aufweisenden Drehtische (16 bzw. 17) auf einem gemeinsamen dritten Drehtisch (23) angeordnet sind, dessen Drehachse (24) quer zu den Drehachsen (18, 19) der beiden Drehtische (16, 17) verläuft. Workpiece holder according to one of claims 1 to 5, characterized in that the two rotary tables (16 and 17) having the clamping heads (13, 14) are arranged on a common third rotary table (23) whose axis of rotation (24) is transverse to the axes of rotation (18, 19) of the two rotary tables (16, 17) runs. Werkstückaufnahme nach Anspruch 6, dadurch gekennzeichnet, dass die beiden Drehtische (16, 17) parallel zu ihren Drehachsen (18 bzw. 19) auf dem dritten Drehtisch (23) relativ zueinander verschiebbar angeordnet sind.Workpiece holder according to claim 6, characterized in that the two rotary tables (16, 17) parallel to their axes of rotation (18 and 19) on the third rotary table (23) are arranged displaceable relative to each other.
EP01128664A 2000-12-16 2001-12-01 Workpiece holder for grinding machine Withdrawn EP1215012A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000162922 DE10062922A1 (en) 2000-12-16 2000-12-16 Workpiece holder for a grinding machine
DE10062922 2000-12-16

Publications (2)

Publication Number Publication Date
EP1215012A2 true EP1215012A2 (en) 2002-06-19
EP1215012A3 EP1215012A3 (en) 2004-01-21

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EP01128664A Withdrawn EP1215012A3 (en) 2000-12-16 2001-12-01 Workpiece holder for grinding machine

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DE (1) DE10062922A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1738874A2 (en) 2005-06-30 2007-01-03 United Technologies Corporation Apparatus and method for marking of turbine blades
EP1955812A1 (en) * 2007-02-09 2008-08-13 United Technologies Corporation Blade feature machining
CN111482869A (en) * 2020-04-20 2020-08-04 马鞍山市德钢模具制造有限公司 Surface treatment equipment for machining hub die

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3314095A1 (en) * 1983-04-19 1984-10-25 Fortuna-Werke Maschinenfabrik Gmbh, 7000 Stuttgart External cylindrical grinding machine
DE4344538A1 (en) * 1993-12-24 1995-06-29 Georg Karstens Maschinenfabrik Rotational grinding machine
DE4430113A1 (en) * 1994-08-25 1996-02-29 Berliner Werkzeugmasch Tool machine for rotationally symmetrical work pieces
DE19601743A1 (en) * 1996-01-19 1997-07-24 Schleifmaschinenfabrik Aba Gmb System for plain grinding and balancing of workpieces especially for turbine rotor for aircraft engines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH692450A5 (en) * 1997-12-03 2002-06-28 Ewag Ag Programmatic grinder.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3314095A1 (en) * 1983-04-19 1984-10-25 Fortuna-Werke Maschinenfabrik Gmbh, 7000 Stuttgart External cylindrical grinding machine
DE4344538A1 (en) * 1993-12-24 1995-06-29 Georg Karstens Maschinenfabrik Rotational grinding machine
DE4430113A1 (en) * 1994-08-25 1996-02-29 Berliner Werkzeugmasch Tool machine for rotationally symmetrical work pieces
DE19601743A1 (en) * 1996-01-19 1997-07-24 Schleifmaschinenfabrik Aba Gmb System for plain grinding and balancing of workpieces especially for turbine rotor for aircraft engines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1738874A2 (en) 2005-06-30 2007-01-03 United Technologies Corporation Apparatus and method for marking of turbine blades
EP1738874A3 (en) * 2005-06-30 2008-11-12 United Technologies Corporation Apparatus and method for marking of turbine blades
EP2374576A1 (en) * 2005-06-30 2011-10-12 United Technologies Corporation Marking figures and methods
EP1955812A1 (en) * 2007-02-09 2008-08-13 United Technologies Corporation Blade feature machining
US8181346B2 (en) 2007-02-09 2012-05-22 United Technologies Corporation System for forming a labyrinth seal on a turbine blade
EP2471631A3 (en) * 2007-02-09 2013-01-09 United Technologies Corporation A system for forming a labyrinth seal
CN111482869A (en) * 2020-04-20 2020-08-04 马鞍山市德钢模具制造有限公司 Surface treatment equipment for machining hub die
CN111482869B (en) * 2020-04-20 2022-05-10 马鞍山市德钢模具制造有限公司 Surface treatment equipment for machining hub die

Also Published As

Publication number Publication date
DE10062922A1 (en) 2002-06-20
EP1215012A3 (en) 2004-01-21

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