EP0726838B1 - Milling head - Google Patents

Milling head Download PDF

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Publication number
EP0726838B1
EP0726838B1 EP93922912A EP93922912A EP0726838B1 EP 0726838 B1 EP0726838 B1 EP 0726838B1 EP 93922912 A EP93922912 A EP 93922912A EP 93922912 A EP93922912 A EP 93922912A EP 0726838 B1 EP0726838 B1 EP 0726838B1
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EP
European Patent Office
Prior art keywords
plate
support plate
toothed system
blade plate
carrier body
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.)
Expired - Lifetime
Application number
EP93922912A
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German (de)
French (fr)
Other versions
EP0726838A1 (en
Inventor
Helmut Hammer
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.)
Leitz GmbH and Co KG
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Leitz GmbH and Co KG
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Filing date
Publication date
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Publication of EP0726838A1 publication Critical patent/EP0726838A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C18/186—Axially elongated knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
    • B27G13/04—Securing the cutters by mechanical clamping means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • Y10T407/1912—Tool adjustable relative to holder
    • Y10T407/1914—Radially
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1908—Face or end mill
    • Y10T407/192—Face or end mill with separate means to fasten tool to holder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1928—Tool adjustable relative to holder

Definitions

  • the invention relates to a cutter head which has the features of the preamble of claim 1. Knife heads of this type are preferably used for circumferential milling.
  • the support plate which is provided on its front side with a toothing with which a corresponding toothing provided on the rear side of the knife plate engages, for a positive locking against one Offset in the radial direction relative to the support body on a projection which forms two legs projecting perpendicularly from the support plate.
  • These legs receive between them a reduced-diameter middle section of a pin which is located in a bore of the support body which extends parallel to the direction of offset and which is provided with an internal thread with which an external thread of the one end section engages.
  • the two end sections of the pin secure the legs and thus also the support plate against displacement in the displacement direction.
  • the position of the support plate depends on the position of the pin in the bore receiving it, ie how far the pin is screwed into this bore. Thanks to the toothing on the front of the support plate and the back of the knife plate, the latter can be adjusted radially outwards tooth by tooth in order to be able to set the correct flight circle diameter again, for example after regrinding. As a rule, however, it is usually essential to position the support plate using the pin. This positioning not only increases the effort required to prepare the tool for use. It also presupposes that the person carrying out the preparation of the tool works reliably.
  • the invention is therefore based on the object of providing a cutter head in which not only are the cutter plates positively fixed in the radial direction, but also makes it possible to carry out the setting of the trajectory diameter simply and without errors. This task is solved by a cutter head with the features of claim 1.
  • the toothing on the back of the support plate which is in engagement with a corresponding toothing of the flank of the support body forming the contact surface for the support plate, positively secures the support plate against an offset in the radial direction relative to the support body.
  • the groove-like depression provided in this flank between the inner end of its toothing and the base of the receptacle and the material part of the pressure plate engaging in it not only form an additional form-fitting securing but also ensure that despite the presence of the toothing on the flank and the back of the support plate the latter can only be arranged in a single radial position in the receptacle and therefore an adjustment or control of the radial position of the support plate is not necessary.
  • the knife plate can be displaced in the radial direction relative to the support plate to the outside thanks to the toothing on its rear side, the knife plate only needs to be displaced radially outward to resharpen the knife plate. This simplifies regrinding to a constant flight circle diameter, because only the hard metal of the knife plate needs to be ground, which can be done with a normal hard metal grinding wheel.
  • the support plate only needs to be profiled during its manufacture, which is possible with a normal corundum disc and can be carried out quickly. Since the support plate does not need to be reground, it remains fully functional and can also be used together with a new knife plate.
  • the solution provided in the knife head according to the invention has the advantage that even very hard types of hard metal that can no longer be soldered can be used. Furthermore, as with soldered knives, there is no longer any risk of crack formation during grinding and re-profiling. Since a pure carbide wheel can be used for regrinding, a far higher grinding quality is possible on the back of the knife plate than can be achieved with a combination grinding wheel.
  • a form-fitting securing against axial displacement of the knife plate relative to the pressure plate is also advantageous. Inadvertent incorrect positioning of the knife plate in the axial direction cannot then occur. Since the toothing can only come into engagement with the toothing of the support plate within the radial adjustment range of the knife plate, there is a clearly visible gap between the knife plate and support plate when the knife plate is positioned outside the radial adjustment area, which indicates to the user that the knife adjustment area has been exceeded. However, it is also possible to provide a positive limitation of the radial offset of the knife plate relative to the pressure plate in order to avoid an excessive radial offset of the knife plate.
  • the pressure plate has a pin protruding beyond its front side, which engages with a slot of the knife plate extending transversely to the longitudinal extension of the teeth, because here, with very simple means, both form-fitting securing against axial displacement and is also achieved against an excessive radial offset of the knife plate relative to the pressure plate.
  • a profile cutter head for circumferential milling has a support body 1 which is provided with a central through-bore 2 for receiving a shaft. From the outer lateral surface, four identical receptacles 3 penetrate into the supporting body 1, which are evenly distributed over the circumference and have the shape of grooves which extend with a constant profile over the entire axial length of the supporting body 1.
  • these grooves have flat flanks which run parallel to one another and which in the exemplary embodiment are inclined relative to a radial plane in such a way that the outer edge leads over the inner edge.
  • the flank 4 lagging in the direction of rotation is provided with micro toothing 5 over almost its entire surface, the teeth of which run parallel to the longitudinal axis of the supporting body 1.
  • a groove-like depression 8 penetrating into the trailing flank 4 is provided.
  • the longitudinal axis of each of these threaded bores 9 forms with the trailing flank 4 an acute counter the groove base 6 pointing angle.
  • a set screw 10 which is sunk in it and whose end section projecting into the receptacle 3 is thread-free in the exemplary embodiment.
  • the grub screws 10 lie against the base of a groove with a triangular cross section, which is provided in the side face of a pressure jaw 11, which extends over the entire axial length of the support body 1.
  • the pressure jaw 11 has a rectangular cross-sectional profile.
  • a knife plate 12 and a support plate 13 are arranged between the side surface of the pressure jaw 11 facing the trailing flank 4 and the trailing flank 4, which, like the pressure jaw 11, extend over the entire axial length of the support body 1.
  • the support plate 13 which rests on the trailing flank 4, is provided on its rear side with a micro toothing 14 which engages in the micro toothing 5 of the trailing flank 4. Following the inner end of the micro toothing 14, the support plate 13 has a strip-shaped material portion 15 which projects beyond the micro toothing 14 and engages in the recess 8 and thereby precludes any adjustment of the support plate 13 radially outward relative to the trailing flank 14.
  • the support plate 13 is also provided in the lower end zone of its front side facing the leading flank 7, against which the rear side of the cutter plate 12 rests, with a micro-toothing 16, the teeth of which extend in the axial direction over the entire axial length of the support plate 13.
  • the micro toothing 16 projects beyond the front side of the support plate 13 so that a micro toothing 17 can engage in it, which is provided in the lower half of the rear side of the knife plate 12 and extends over its entire surface extends axial length.
  • the width of the zones having the micro-toothings 16 and 17 is corresponding to that desired adjustment range selected.
  • the knife plate 12 and the support plate 13 are clamped together in the receptacle by pressing the pressure jaw 11 against the trailing edge 7 by means of the threaded pins 10.
  • the micro-toothing 14 of the support plate 13 is held in play-free engagement with the micro-toothing 5 of the trailing edge 4 and the micro-toothing 17 of the knife plate in play-free engagement with the micro-toothing 16 of the support plate.
  • the tension is released so far that the knife plate 12 can be displaced radially outward from one tooth relative to the support plate 13.
  • the support plate 13 is profiled only during its manufacturing process. It therefore retains its original shape and can therefore also be used together with a new or a different cutter plate 12, which may be made of a different material.
  • the knife plate 112 is provided on its rear side with a toothing 117 corresponding to the toothing 17 of the first exemplary embodiment, the teeth of which extend over the entire axial extent of the knife plate 112.
  • the toothing 117 ends at a distance from the radially inner edge of the rear of the knife plate 112.
  • the toothing 117 is completely recessed in the rear of the knife plate 112, as shown in FIG. 7. Because of the small dimensions of the tooth profile, the toothing 117 can also be referred to as micro toothing.
  • the toothing 114 of the support plate 113 which cooperates with the toothing 117, as shown in FIG. 8, projects substantially completely beyond the front of the support plate 113.
  • the number of teeth of the toothing 116 is smaller, in the exemplary embodiment half as large as the number of teeth of the toothing 117.
  • the knife plate 112 can therefore be adjusted in the radial direction by half the number of teeth of the toothing 116, which can also be seen in FIG 9 results, which shows the knife plate 112 in the position at the inner end of the adjustment range.
  • the back of the support plate 113 is provided on its back with a toothing 114 which engages with the toothing 105 with which the flank 104 lagging in the direction of rotation is provided with one of the grooves 103 which the supporting body 101 has.

Abstract

PCT No. PCT/EP93/02729 Sec. 371 Date May 18, 1995 Sec. 102(e) Date May 18, 1995 PCT Filed Oct. 6, 1993 PCT Pub. No. WO94/07665 PCT Pub. Date Apr. 14, 1994An improved milling head. A milling head is provided with a backing plate with a toothed system on the from side, whose teeth run in parallel to the longitudinal axis of the carrier body. Because the blade plate has a toothed system, which can be engaged with the toothed system on the front of the support plate, the blade plate no longer needs to be shifted radially outward to be resharpened. Rather the blade plate must only be radially displaced to the outside by a tooth of a micro-toothed system. This simplifies the regrinding on a constant flight circle diameter, because only the hard metal of the blade plate needs to be ground, which can be accomplished with a normal hard metal grinding wheel. The support plate only needs to be shaped when it is manufactured, which is possible with a normal corundum disk and can be accomplished quickly. Since the support plate does not need to be reground, it remains completely functional and can be used together with a new blade plate. In a preferred embodiment, the support plates and the flank of the groove which creates the face of the support plate provide for an interlocking securing device for the support plate against any dislocation in the radial direction relative to the carrier body.

Description

Die Erfindung bezieht sich auf einen Messerkopf, der die Merkmale des Oberbegriffs des Anspruches 1 aufweist. Derartige Messerköfpe werden vorzugsweise zum Umfangsfräsen verwendet.The invention relates to a cutter head which has the features of the preamble of claim 1. Knife heads of this type are preferably used for circumferential milling.

Bei einem bekannten Messerkopf dieser Art (GB-A-893 198) weist die Stützplatte, die an ihrer Vorderseite mit einer Verzahnung versehen ist, mit der eine entsprechende, an der Rückseite der Messerplatte vorgesehene Verzahnung in Eingriff steht, für eine formschlüssige Sicherung gegen einen Versatz in radialer Richtung relativ zum Tragkörper einen Vorsprung auf, der zwei lotrecht von der Stützplatte abstehende Schenkel bildet. Diese Schenkel nehmen zwischen sich einen im Durchmesser reduzierten Mittelabschnitt eines Stiftes auf, der sich in einer parallel zur Versatzrichtung erstreckenden Bohrung des Tragkörpers befindet, die mit einem Innengewinde versehen ist, mit dem ein Außengewinde des einen Endabschnittes in Eingriff ist. Die beiden Endabschnitte des Stiftes sichern die Schenkel und damit auch die Stützplatte formschlüssig gegen eine Verschiebung in der Versatzrichtung. Deshalb hängt die Position der Stützplatte davon ab, welche Position der Stift in der ihn aufnehmenden Bohrung einnimmt, wie weit also der Stift in diese Bohrung hineingedreht ist. Zwar kann dank der Verzahnung auf der Vorderseite der Stützplatte und der Rückseite der Messerplatte letztere Zahn um Zahn radial nach außen verstellt werden, um, beispielsweise nach einem Nachschleifen, den richtigen Flugkreisdurchmesser wieder einstellen zu können. In der Regel ist es aber hierzu normalerweise unerläßlich, mit Hilfe des Stiftes die Stützplatte zu positionieren. Diese Positionierung erhöht nicht nur den Aufwand für die Vorbereitung des Werkzeuges für den Einsatz. Sie setzt auch voraus, daß die die Vorbereitung des Werkzeuges durchführende Person zuverlässig arbeitet.In a known cutter head of this type (GB-A-893 198), the support plate, which is provided on its front side with a toothing with which a corresponding toothing provided on the rear side of the knife plate engages, for a positive locking against one Offset in the radial direction relative to the support body on a projection which forms two legs projecting perpendicularly from the support plate. These legs receive between them a reduced-diameter middle section of a pin which is located in a bore of the support body which extends parallel to the direction of offset and which is provided with an internal thread with which an external thread of the one end section engages. The two end sections of the pin secure the legs and thus also the support plate against displacement in the displacement direction. Therefore, the position of the support plate depends on the position of the pin in the bore receiving it, ie how far the pin is screwed into this bore. Thanks to the toothing on the front of the support plate and the back of the knife plate, the latter can be adjusted radially outwards tooth by tooth in order to be able to set the correct flight circle diameter again, for example after regrinding. As a rule, however, it is usually essential to position the support plate using the pin. This positioning not only increases the effort required to prepare the tool for use. It also presupposes that the person carrying out the preparation of the tool works reliably.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Messerkopf zu schaffen, in dem nicht nur die Messerplatten in radialer Richtung formschlüssig festgelegt sind, sondern der es auch ermöglicht, die Einstellung des Flugkreisdurchmessers einfach und fehlerfrei durchzuführen. Diese Aufgabe löst ein Messerkopf mit den Merkmalen des Anspruches 1.The invention is therefore based on the object of providing a cutter head in which not only are the cutter plates positively fixed in the radial direction, but also makes it possible to carry out the setting of the trajectory diameter simply and without errors. This task is solved by a cutter head with the features of claim 1.

Die Verzahnung auf der Rückseite der Stützplatte, welche in Eingriff mit einer entsprechenden Verzahnung der die Anlagefläche für die Stützplatte bildenden Flanke des Tragkörpers steht, sichert die Stützplatte formschlüssig gegen einen Versatz in radialer Richtung relativ zum Tragkörper. Die in dieser Flanke zwischen dem inneren Ende ihrer Verzahnung und dem Grund der Aufnahme vorgesehene, nutartige Vertiefung und die in sie eingreifende Materialpartie der Druckplatte bilden nicht nur eine zusätzliche formschlüssige Sicherung, sondern stellen außerdem sicher, daß trotz des Vorhandenseins der Verzahnungen an der Flanke und der Rückseite der Stützplatte letztere nur in einer einzigen radialen Position in der Aufnahme angeordnet werden kann und deshalb eine Einstellung oder Kontrolle der radialen Position der Stützplatte nicht erforderlich ist.The toothing on the back of the support plate, which is in engagement with a corresponding toothing of the flank of the support body forming the contact surface for the support plate, positively secures the support plate against an offset in the radial direction relative to the support body. The groove-like depression provided in this flank between the inner end of its toothing and the base of the receptacle and the material part of the pressure plate engaging in it not only form an additional form-fitting securing but also ensure that despite the presence of the toothing on the flank and the back of the support plate the latter can only be arranged in a single radial position in the receptacle and therefore an adjustment or control of the radial position of the support plate is not necessary.

Dadurch, daß die Messerplatte dank der Verzahnung auf ihrer Rückseite in radialer Richtung relativ zur Stützplatte nach außen versetzt werden kann, braucht zum Nachschärfen der Messerplatte diese nur um einen Zahn der Mikroverzahnung radial nach außen versetzt zu werden. Dies vereinfacht das Nachschleifen auf einen konstanten Flugkreisdurchmesser, weil nur das Hartmetall der Messerplatte geschliffen zu werden braucht, was mit einer normalen Hartmetallschleifscheibe ausgeführt werden kann. Die Stützplatte braucht nur bei ihrer Herstellung profiliert zu werden, was mit einer normalen Korundscheibe möglich ist und rasch auszuführen ist. Da die Stützplatte nicht nachgeschliffen zu werden braucht, bleibt sie voll funktionsfähig und kann auch zusammen mit einer neuen Messerplatte verwendet werden.Because the knife plate can be displaced in the radial direction relative to the support plate to the outside thanks to the toothing on its rear side, the knife plate only needs to be displaced radially outward to resharpen the knife plate. This simplifies regrinding to a constant flight circle diameter, because only the hard metal of the knife plate needs to be ground, which can be done with a normal hard metal grinding wheel. The support plate only needs to be profiled during its manufacture, which is possible with a normal corundum disc and can be carried out quickly. Since the support plate does not need to be reground, it remains fully functional and can also be used together with a new knife plate.

Gegenüber Messerköpfen mit gelöteten Messern weist die bei dem erfindungemäßen Messerkopf vorgesehenen Lösung den Vorteil auf, daß auch sehr harte Hartmetallsorten verwendbar sind, die nicht mehr lötbar sind. Ferner besteht nicht mehr wie bei gelöteten Messern die Gefahr einer Rißbildung beim Schleifen und Nachprofilieren. Da für das Nachschleifen eine reine Hartmetallscheibe verwendet werden kann, ist eine weit höhere Schliffqualität am Rücken der Messerplatte möglich als beim Schleifen mit einer Kombinationsschleifscheibe erreichbar ist.Compared to knife heads with soldered knives, the solution provided in the knife head according to the invention has the advantage that even very hard types of hard metal that can no longer be soldered can be used. Furthermore, as with soldered knives, there is no longer any risk of crack formation during grinding and re-profiling. Since a pure carbide wheel can be used for regrinding, a far higher grinding quality is possible on the back of the knife plate than can be achieved with a combination grinding wheel.

Vorteilhaft ist auch eine formschlüssige Sicherung gegen eine axiale Verschiebung der Messerplatte relativ zur Druckplatte. Es kann dann nicht aus Unachtsamkeit zu einer falschen Positionierung der Messerplatte in axialer Richtung kommen. Da nur innerhalb des radialen Verstellbereichs der Messerplatte deren Verzahnung in Eingriff mit der Verzahnung der Stützplatte treten kann, ist bei einer Positionierung der Messerplatte außerhalb des radialen Verstellbereiches ein deutlich sichtbarer Spalt zwischen Messerplatte und Stützplatte vorhanden, der dem Benutzer anzeigt, daß der Messerverstellbereich überschritten worden ist. Man kann aber auch eine formschlüssige Begrenzung des radialen Versatzes der Messerplatte relativ zur Druckplatte vorsehen, um einen zu großen radialen Versatz der Messerplatte zu vermeiden. Besonders vorteilhaft ist es dabei, wenn die Druckplatte einen über ihre Vorderseite überstehenden Stift aufweist, der mit einem sich quer zu der Längserstreckung der Zähne erstreckenden Schlitz der Messerplatte in Eingriff steht, weil hierbei mit sehr einfachen Mitteln sowohl eine formschlüssige Sicherung gegen eine axiale Verschiebung als auch gegen einen zu großen radialen Versatz der Messerplatte relativ zur Druckplatte erreicht wird.A form-fitting securing against axial displacement of the knife plate relative to the pressure plate is also advantageous. Inadvertent incorrect positioning of the knife plate in the axial direction cannot then occur. Since the toothing can only come into engagement with the toothing of the support plate within the radial adjustment range of the knife plate, there is a clearly visible gap between the knife plate and support plate when the knife plate is positioned outside the radial adjustment area, which indicates to the user that the knife adjustment area has been exceeded. However, it is also possible to provide a positive limitation of the radial offset of the knife plate relative to the pressure plate in order to avoid an excessive radial offset of the knife plate. It is particularly advantageous if the pressure plate has a pin protruding beyond its front side, which engages with a slot of the knife plate extending transversely to the longitudinal extension of the teeth, because here, with very simple means, both form-fitting securing against axial displacement and is also achieved against an excessive radial offset of the knife plate relative to the pressure plate.

Im folgenden ist die Erfindung anhand von zwei in der Zeichnung dargestellten Ausführungsbeispielen im einzelnen erläutert. Es zeigen

Fig. 1
eine teilweise geschnitten dargestellte Stirnansicht eines unvollständig bestückten ersten Ausführungsbeispiels,
Fig. 2
einen vergrößert dargestellten Ausschnitt aus Fig. 1,
Fig. 3
eine Frontansicht der Stützplatte des ersten Ausführungsbeispiels,
Fig. 4
eine Stirnansicht der Stützplatte des ersten Ausführungsbeispiels,
Fig. 5
eine Frontansicht der Messerplatte des ersten Ausführungsbeispiels,
Fig. 6
eine Stirnansicht der Messerplatte des ersten Ausführungsbeispiels,
Fig. 7
eine vergrößert und unvollständig dargestellte Seitenansicht der Messerplatte des zweiten Ausführungsbeispiels,
Fig. 8
eine vergrößert und unvollständig dargestellte Seitenansicht der Stützplatte des zweiten Ausführungsbeispiels,
Fig. 9
einen Ausschnitt aus einer Stirnansicht des zweiten Ausführungsbeispiels.
The invention is explained in detail below with reference to two exemplary embodiments shown in the drawing. Show it
Fig. 1
3 shows a front view, partially in section, of an incompletely equipped first exemplary embodiment,
Fig. 2
2 shows an enlarged section from FIG. 1,
Fig. 3
2 shows a front view of the support plate of the first exemplary embodiment,
Fig. 4
3 shows an end view of the support plate of the first exemplary embodiment,
Fig. 5
2 shows a front view of the knife plate of the first exemplary embodiment,
Fig. 6
3 shows an end view of the cutter plate of the first exemplary embodiment,
Fig. 7
2 shows an enlarged and incompletely illustrated side view of the knife plate of the second exemplary embodiment,
Fig. 8
2 shows an enlarged and incompletely illustrated side view of the support plate of the second exemplary embodiment,
Fig. 9
a section of an end view of the second embodiment.

Ein Profilmesserkopf zum Umfangfräsen weist einen Tragkörper 1 auf, der mit einer zentralen Durchgangsbohrung 2 zur Aufnahme einer Welle versehen ist. Von der äußeren Mantelfläche her dringen in den Tragkörper 1 vier gleich ausgebildete Aufnahmen 3 ein, die gleichmäßig über den Umfang verteilt angeordnet sind und die Form von Nuten haben, welche sich mit gleichbleibendem Profil über die gesamte axiale Länge des Tragkörpers 1 erstrecken.A profile cutter head for circumferential milling has a support body 1 which is provided with a central through-bore 2 for receiving a shaft. From the outer lateral surface, four identical receptacles 3 penetrate into the supporting body 1, which are evenly distributed over the circumference and have the shape of grooves which extend with a constant profile over the entire axial length of the supporting body 1.

Wie Fig. 1 zeigt, haben diese Nuten im Ausführungsbeispiel parallel zueinander verlaufende, ebene Flanken, die im Ausführungsbeispiel derart gegenüber einer Radialebene geneigt sind, daß der äußere Rand gegenüber dem inneren Rand voreilt. Die in Drehrichtung nacheilende Flanke 4 ist nahezu auf ihrer gesamten Fläche mit einer Mikroverzahnung 5 versehen, deren Zähne parallel zur Längsachse des Tragkörpers 1 verlaufen. Zwischen dem innen liegenden Ende dieser Mirkoverzahnung 5 und dem Nutgrund 6, der von der nacheilenden Flanke 4 zur voreilenden Flanke 7 unter Bildung einer Stufe ansteigt, ist eine in die nacheilende Flanke 4 eindringende, nutartige Vertiefung 8 vorgesehen.As shown in FIG. 1, in the exemplary embodiment these grooves have flat flanks which run parallel to one another and which in the exemplary embodiment are inclined relative to a radial plane in such a way that the outer edge leads over the inner edge. The flank 4 lagging in the direction of rotation is provided with micro toothing 5 over almost its entire surface, the teeth of which run parallel to the longitudinal axis of the supporting body 1. Between the inner end of this micro toothing 5 and the groove base 6, which rises from the trailing flank 4 to the leading flank 7 to form a step, a groove-like depression 8 penetrating into the trailing flank 4 is provided.

In der voreilenden Flanke 7 münden mehrere in axialer Richtung des Tragkörpers 1 im Abstand voneinander angeordnete Gewindebohrungen 9, die andererseits in der Außenmantelfläche des Tragkörpers 1 münden. Die Längsachse jeder dieser Gewindebohrungen 9 bildet mit der nacheilend Flanke 4 einen spitzen, gegen den Nutgrund 6 weisenden Winkel. In jeder Gewindebohrung 9 ist ein in ihr versenkt liegender Gewindestift 10 angeordnet, dessen in die Aufnahme 3 ragender Endabschnitt im Ausführungsbeispiel gewindefrei ist. Die Gewindestifte 10 liegen am Grund einer im Querschnitt dreieckförmigen Nut an, die in der Seitenfläche einer Druckbacke 11 vorgesehen ist, welche sich über die gesamte axiale Länge des Tragkörpers 1 erstreckt. Abgesehen von dieser Nut und einer Auskehlung auf der radial nach außen weisenden Seite zur Bildung einer Spannut hat die Druckbacke 11 ein rechteckförmiges Querschnittsprofil.A plurality of threaded bores 9, which are arranged at a distance from one another in the axial direction of the supporting body 1, open into the leading flank 7 and, on the other hand, open into the outer lateral surface of the supporting body 1. The longitudinal axis of each of these threaded bores 9 forms with the trailing flank 4 an acute counter the groove base 6 pointing angle. In each threaded bore 9 there is a set screw 10 which is sunk in it and whose end section projecting into the receptacle 3 is thread-free in the exemplary embodiment. The grub screws 10 lie against the base of a groove with a triangular cross section, which is provided in the side face of a pressure jaw 11, which extends over the entire axial length of the support body 1. Apart from this groove and a groove on the radially outward-facing side to form a flute, the pressure jaw 11 has a rectangular cross-sectional profile.

Zwischen der der nacheilenden Flanke 4 zugekehrten Seitenfläche der Druckbacke 11 und der nacheilenden Flanke 4 sind eine Messerplatte 12 und eine Stützplatte 13 angeordnet, welche sich wie die Druckbacke 11 über die gesamte axiale Länge des Tragkörpers 1 erstrecken.A knife plate 12 and a support plate 13 are arranged between the side surface of the pressure jaw 11 facing the trailing flank 4 and the trailing flank 4, which, like the pressure jaw 11, extend over the entire axial length of the support body 1.

Die Stützplatte 13, die an der nacheilenden Flanke 4 anliegt, ist auf ihrer Rückseite mit einer Mikroverzahnung 14 versehen, welche in die Mikroverzahnung 5 der nacheilenden Flanke 4 eingreift. Im Anschluß an das innen liegende Ende der Mikroverzahnung 14 weist die Stützplatte 13 eine leistenförmige, über die Mikroverzahnung 14 überstehende Materialpartie 15 auf, die in die Vertiefung 8 eingreift und dadurch eine Verstellung der Stützplatte 13 radial nach außen relativ zur nacheilenden Flanke 14 ausschließt.The support plate 13, which rests on the trailing flank 4, is provided on its rear side with a micro toothing 14 which engages in the micro toothing 5 of the trailing flank 4. Following the inner end of the micro toothing 14, the support plate 13 has a strip-shaped material portion 15 which projects beyond the micro toothing 14 and engages in the recess 8 and thereby precludes any adjustment of the support plate 13 radially outward relative to the trailing flank 14.

Die Stützplatte 13 ist außerdem in der unteren Endzone ihrer der voreilenden Flanke 7 zugewandten Vorderseite, an welcher die Rückseite der Messerplatte 12 anliegt, mit einer Mikroverzahnung 16 versehen, deren in axialer Richtung verlaufende Zähne sich über die gesamte axiale Länge der Stützplatte 13 erstreckt. Die Mikroverzahnung 16 steht über die Vorderseite der Stützplatte 13 über, damit in sie eine Mikroverzahnung 17 eingreifen kann, welche in der unteren Hälfte der Rückseite der Messerplatte 12 vorgesehen ist und sich über deren gesamte axiale Länge erstreckt. Da die beiden Mikroverzahnungen 16 und 17 dazu dienen, die Messerplatte 12 radial nach außen Zahn für Zahn verstellen zu können, um bei einem Nachschärfen wieder den gleichen Flugkreisdurchmesser wie zuvor erreichen zu können, ist die Breite der die Mikroverzahnungen 16 und 17 aufweisenden Zonen entsprechend dem gewünschten Verstellbereich gewählt.The support plate 13 is also provided in the lower end zone of its front side facing the leading flank 7, against which the rear side of the cutter plate 12 rests, with a micro-toothing 16, the teeth of which extend in the axial direction over the entire axial length of the support plate 13. The micro toothing 16 projects beyond the front side of the support plate 13 so that a micro toothing 17 can engage in it, which is provided in the lower half of the rear side of the knife plate 12 and extends over its entire surface extends axial length. Since the two micro-toothings 16 and 17 serve to be able to adjust the knife plate 12 tooth for tooth radially outwards in order to be able to achieve the same flight circle diameter as before when re-sharpening, the width of the zones having the micro-toothings 16 and 17 is corresponding to that desired adjustment range selected.

Um einerseits einen axialen Versatz der Messerplatte 12 relativ zur Druckplatte 11 auszuschließen und andererseits zu verhindern, daß die Messerplatte 12 zu weit radial nach außen relativ zur Stützplatte 13 versetzt werden kann, ist in die Stützplatte 13 ein über deren Vorderseite überstehender Paßkerbstift 18 eingesetzt, der spielfrei in ein Langloch 19 der Messerplatte 12 eingreift, das lotrecht zu der Längserstreckung der Zähne der Mikroverzahnungen 16 und 17 verläuft.In order to exclude on the one hand an axial offset of the knife plate 12 relative to the pressure plate 11 and on the other hand to prevent the knife plate 12 from being displaced too far radially outwards relative to the support plate 13, a dowel pin 18 protruding beyond the front thereof is inserted into the support plate 13, the engages without play in an elongated hole 19 of the cutter plate 12, which runs perpendicular to the longitudinal extension of the teeth of the micro-toothing 16 and 17.

Wie Fig. 1 zeigt, werden die Messerplatte 12 und die Stützplatte 13 gemeinsam in der Aufnahme eingespannt, indem mittels der Gewindestifte 10 die Druckbacke 11 gegen die nacheilende Flanke 7 gepreßt wird. Hierdurch wird die Mikroverzahnung 14 der Stützplatte 13 in spielfreiem Eingriff mit der Mikroverzahnung 5 der nacheilenden Flanke 4 sowie die Mikroverzahnung 17 der Messerplatte in spielfreiem Eingriff mit der Mikroverzahnung 16 der Stützplatte gehalten. Ist ein Nachschärfen der Messerplatte 12 erforderlich, dann wird die Spannung so weit gelöst, daß die Messerplatte 12 vom einen Zahn relativ zur Stützplatte 13 radial nach außen versetzt werden kann. Bei dem jetzt erfolgenden Nachschärfer wird ausschließlich die Messerplatte 12 bearbeitet. Die Stützplatte 13 wird nur bei ihrem Herstellungsvorgang profiliert. Sie behält deshalb ihre ursprüngliche Form und kann daher auch zusammen mit einer neuen oder einer anderen, gegebenenfalls aus einem anderen Material bestehenden Messerplatte 12 verwendet werden.As shown in FIG. 1, the knife plate 12 and the support plate 13 are clamped together in the receptacle by pressing the pressure jaw 11 against the trailing edge 7 by means of the threaded pins 10. As a result, the micro-toothing 14 of the support plate 13 is held in play-free engagement with the micro-toothing 5 of the trailing edge 4 and the micro-toothing 17 of the knife plate in play-free engagement with the micro-toothing 16 of the support plate. If resharpening of the knife plate 12 is required, the tension is released so far that the knife plate 12 can be displaced radially outward from one tooth relative to the support plate 13. With the resharpening now taking place, only the knife plate 12 is processed. The support plate 13 is profiled only during its manufacturing process. It therefore retains its original shape and can therefore also be used together with a new or a different cutter plate 12, which may be made of a different material.

Bei dem in den Fig. 7 bis 9 dargestellten zweiten Ausführungsbeispiel ist die Messerplatte 112 auf ihrer Rückseite mit einer der Verzahnung 17 des ersten Ausführungsbeispiels entsprechenden Verzahnung 117 versehen, deren Zähne sich über die gesamte axiale Erstreckung der Messerplatte 112 erstrecken. Wie bei dem ersten Ausführungsbeispiel endet die Verzahnung 117 im Abstand von der radial innenliegenden Kante der Rückseite der Messerplatte 112. Wie die Verzahnung 17 des ersten Ausführungsbeispiels ist die Verzahnung 117 vollständig in der Rückseite der Messerplatte 112 versenkt, wie Fig. 7 zeigt. Wegen der geringen Abmessungen des Zahnprofiles kann auch die Verzahnung 117 als Mikroverzahnung bezeichnet werden.In the second exemplary embodiment shown in FIGS. 7 to 9, the knife plate 112 is provided on its rear side with a toothing 117 corresponding to the toothing 17 of the first exemplary embodiment, the teeth of which extend over the entire axial extent of the knife plate 112. As in the first exemplary embodiment, the toothing 117 ends at a distance from the radially inner edge of the rear of the knife plate 112. Like the toothing 17 of the first exemplary embodiment, the toothing 117 is completely recessed in the rear of the knife plate 112, as shown in FIG. 7. Because of the small dimensions of the tooth profile, the toothing 117 can also be referred to as micro toothing.

Die mit der Verzahnung 117 zusammenwirkende Verzahnung 114 der Stützplatte 113 steht, wie Fig. 8 zeigt, im wesentlichen vollständig über die Vorderseite der Stützplatte 113 über. Die Zahl der Zähne der Verzahnung 116 ist kleiner, im Ausführungsbeispiel halb so groß, wie die Zahl der Zähne der Verzahnung 117. Die Messerplatte 112 kann also um die halbe Anzahl der Zähne der Verzahnung 116 in radialer Richtung verstellt werden, was sich auch aus Fig. 9 ergibt, welche die Messerplatte 112 in der Position am inneren Ende des Verstellbereiches zeigt.The toothing 114 of the support plate 113 which cooperates with the toothing 117, as shown in FIG. 8, projects substantially completely beyond the front of the support plate 113. The number of teeth of the toothing 116 is smaller, in the exemplary embodiment half as large as the number of teeth of the toothing 117. The knife plate 112 can therefore be adjusted in the radial direction by half the number of teeth of the toothing 116, which can also be seen in FIG 9 results, which shows the knife plate 112 in the position at the inner end of the adjustment range.

Sofern der Benutzer eine Position der Messerplatte wählt, die außerhalb des Verstellbereiches der Messerplatte liegt, kommt zumindest einer der Zähne der Verzahnung 116 der Stützplatte in Anlage an die Rückseite der Messerplatte 112. Handelt es sich dabei um eine Position, bei welcher die Messerplatte 112 über den Verstellbereich radial nach außen hin versetzt ist, kommt wenigstens einer der Zähne der Verzahnung 116 in Anlage an den zwischen der Verzahnung 117 und der Innenkante der Rückseite der Messerplatte 112 liegenden Bereich 120 der Messerplattenrückseite. Die Anlage der Zähne der Verzahnung 116 an der Rückseite der Messerplatte 112 hat einen Spalt zwischen der Messerplatte 112 und der Stützplatte 113 zur Folge. Dieser Spalt ist deutlich erkennbar und zeigt dem Benutzer an, daß die Messerplatte 112 eine unzulässige Position einnimmt. Deshalb ist bei dem zweiten Ausführungsbeispiel auf eine formschlüssige Begrenzung des Verstellbereichs der Messerplatte 112 in radialer Richtung, wie sie bei dem ersten Ausführungsbeispiel durch den Paßkerbstift 18 und das Langloch 19 vorhanden ist, verzichtet.If the user selects a position of the knife plate that lies outside the adjustment range of the knife plate, at least one of the teeth of the toothing 116 of the support plate comes into contact with the back of the knife plate 112. Is this a position in which the knife plate 112 overlaps If the adjustment range is offset radially outwards, at least one of the teeth of the toothing 116 comes into contact with the area 120 of the rear of the knife plate located between the toothing 117 and the inner edge of the rear side of the knife plate 112. The contact of the teeth of the toothing 116 on the back of the knife plate 112 results in a gap between the knife plate 112 and the support plate 113. This The gap is clearly recognizable and indicates to the user that the knife plate 112 is in an impermissible position. Therefore, in the second exemplary embodiment, there is no form-fitting limitation of the adjustment range of the knife plate 112 in the radial direction, as is provided in the first exemplary embodiment by the dowel pin 18 and the elongated hole 19.

Wie bei dem ersten Ausführungsbeispiel ist die Rückseite der Stützplatte 113 auf ihrer Rückseite mit einer Verzahnung 114 versehen, die mit der Verzahnung 105 in Eingriff tritt, mit welcher die in Drehrichtung nacheilende Flanke 104 einer der Nuten 103 versehen ist, die der Tragkörper 101 aufweist.As in the first exemplary embodiment, the back of the support plate 113 is provided on its back with a toothing 114 which engages with the toothing 105 with which the flank 104 lagging in the direction of rotation is provided with one of the grooves 103 which the supporting body 101 has.

Wegen der übrigen Einzelheiten wird auf die Ausführungen zu dem ersten Ausführungsbeispiel hingewiesen, da insoweit Übereinstimmung mit dem ersten Ausführungsbeispiel besteht.For the rest of the details, reference is made to the explanations for the first exemplary embodiment, since there is agreement with the first exemplary embodiment.

Claims (6)

  1. Milling head, the carrier body (1; 101) of which has recesses (3; 103) distributed evenly around its perimeter stretching in the axial direction of the carrier body (1; 101) and grooves which are open on the outside for each a blade plate (12; 112), adjustable in the radial direction, that sits secured against an axial shifting on the front side of a support plate (13; 113), with which they together by means of a pressure block (11) on the front side of the blade as well as with help from at least one screw (10), which stands engaged with one of the threaded bore holes of the carrier body (1; 101) penetrating the one flank of the groove, is tensible against the other flank, whereby
    a) the support plate (13; 113) is provided with a toothed system (16; 116) made of multiple parallel teeth running toward the longitudinal axis of the carrier body (1; 101) on its front side and the blade plate (12; 112) is provided with a corresponding toothed system (17; 117) on its back side, and both toothed systems (16, 17; 116, 117) can be brought together and engaged with a choosable radial displacement of the blade plate (12; 112) relative to the support plate (13; 113), and
    b) means (8; 15) for an interlocking securing of the support plate (13; 113) against a displacement in the radial direction relative to the carrier body (1; 101) are provided,
    characterized by that the flank (4; 104) with creates the support surface for the back side of the support plate (13; 113) is provided with a toothed system (5; 105), that has teeth in parallel to the longitudinal axis of the carrier body (1; 101), with which a corresponding toothed system (14; 114) on the back side of the support plate (13; 113) is engaged as said means (8, 15) for an interlocking securing device of the support plate (13; 113) against a displacement in the radial direction relative to the carrier body (1; 101), and that the flank (4; 104) between the inner end of its toothed system (5; 105) and the base (6) of the recess (3; 103) has a groove type indentation (8) extending in the direction of the teeth and the backing plate (13; 113) in the junction on the inner end of its toothed system (14; 114) on the back side has a section of material (15) engaged with the groove-type indentation (8).
  2. Milling head as in claim 1 characterized by an interlocking securing device (18, 19) against an axial shifting of the blade plate (12) relative to the support plate (13).
  3. Milling head as in claim 1 or 2 characterized by an interlocking boundary (18, 19) of the radial displacement of the blade plate (12) relative to the backing plate (13).
  4. Milling head as in claim 3 characterized by that the backing plate (13) has a pin (18) projecting out over the front side, which engages in a slot (19) in the blade plate (12) which runs at a right angle to the longitudinal extension of the teeth of the toothed system (17) of the blade plate (12).
  5. Milling head as in claim 1 through 4 characterized by that the toothed system (17; 117) of the blade plate (12; 112) ends at a distance from the radial inner edge of its back side.
  6. Milling head as in claims 1 through 5 characterized by that the toothed system (117) of the blade plate (112) is sunk completely into this and the toothed system (116) of the support plate (113), which is working together with it, projects out completely over its front side.
EP93922912A 1992-10-07 1993-10-06 Milling head Expired - Lifetime EP0726838B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9213466U DE9213466U1 (en) 1992-10-07 1992-10-07
DE9213466U 1992-10-07
PCT/EP1993/002729 WO1994007665A1 (en) 1992-10-07 1993-10-06 Milling head

Publications (2)

Publication Number Publication Date
EP0726838A1 EP0726838A1 (en) 1996-08-21
EP0726838B1 true EP0726838B1 (en) 1997-11-26

Family

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US (1) US5658101A (en)
EP (1) EP0726838B1 (en)
JP (1) JP2813604B2 (en)
AT (1) ATE160527T1 (en)
DE (2) DE9213466U1 (en)
DK (1) DK0726838T3 (en)
ES (1) ES2110631T3 (en)
WO (1) WO1994007665A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1123786A2 (en) * 2000-02-08 2001-08-16 Stehle GmbH & Co. KG Werkzeug- und Maschinenfabrik Milling head

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5924826A (en) * 1994-04-27 1999-07-20 Sandvik Ab Cutting insert mounted on holder by rib-and-groove coupling
DE9415111U1 (en) * 1994-06-20 1994-12-08 Tigra Hartstoff Gmbh Device for the detachable mounting of hard metal cutting inserts on cutter heads
DE9414327U1 (en) * 1994-09-03 1994-11-03 Hapro Hartmetall Profiltechnik Knife plate holder for knife heads
FR2745222A1 (en) * 1996-02-26 1997-08-29 Mecaniques De Savigneux Atel Disk for tool carrying modules for wood working
DE29615408U1 (en) * 1996-09-04 1998-01-08 Schrammel Helmut Dipl Ing Fh Tool unit
DE29615412U1 (en) * 1996-09-04 1998-01-08 Schrammel Helmut Dipl Ing Fh Knife for a knife head
IL120762A (en) * 1997-05-02 2001-04-30 Iscar Ltd Cutting tool and insert bearing cartridge therefor
DE19807111A1 (en) * 1998-02-20 1999-08-26 Will E C H Gmbh & Co Knife drum for machines for cross cutting material webs
DE19818625A1 (en) * 1998-04-25 1999-10-28 Utensilea S A S Knife holding device in knife heads for woodworking
US6189584B1 (en) 1998-08-12 2001-02-20 Douglas Scott Cayce Disposable carbide blade assembly for universal rotary cutter
US6173637B1 (en) * 1998-08-17 2001-01-16 Lrh Enterprises, Inc. Molding cutter head
SE514028C2 (en) 1998-10-27 2000-12-11 Sandvik Ab Cutter for rotatable cutting tools
SE514029C2 (en) * 1998-10-27 2000-12-11 Sandvik Ab Chip separating tool
US6119741A (en) * 1999-02-10 2000-09-19 Rowe; David G. Rotary cutter head
DE19942461C1 (en) * 1999-09-06 2000-10-19 Tigra Hartstoff Gmbh Clamp for a hard metal cutting blade has a profile plate at the support plate with a lateral sawtooth structure to engage a complementary sawtooth array pressed together by an elastic insert without free play
US6811362B2 (en) 2000-10-25 2004-11-02 E. W. Tooling, Inc. Constant dimension insert cutting tool with regrindable profiled inserts
SE520997C2 (en) * 2001-01-09 2003-09-23 Sandvik Ab Reversible cutter with grooved coupling surface against the holder and central material portion for fasteners
DE10124653A1 (en) * 2001-05-18 2002-11-21 Hapro Holzbearbeitungs Werkzeu Positive connection between cutter plate and backing plate has tooth profile on both radial side edges of cutter plate
JP3883103B2 (en) * 2001-08-06 2007-02-21 兼房株式会社 Finger cutter
US6761514B2 (en) 2001-10-19 2004-07-13 Master Tool Corporation Hollow mill tool
US6702526B2 (en) * 2002-04-29 2004-03-09 Kennametal Inc. Cutting tool
US7237586B2 (en) * 2002-10-22 2007-07-03 Moulder Services, Inc. Rotatable cutting tool
FR2887786B1 (en) * 2005-06-30 2007-11-16 Cmb Wittmann Soc Par Actions S ROTOR FOR MILLER, MILLER AND BLADE FOR A MILLER ROTOR
US7789598B2 (en) * 2005-07-12 2010-09-07 Kyocera Corporation Surface coated cutting tool
US7429150B2 (en) * 2006-05-31 2008-09-30 Kennametal Inc. Tool holder with spherical contact points
US7300231B1 (en) * 2006-12-04 2007-11-27 Hsing Chao Liu Cutting tool carrying device for machine tool
US20090071223A1 (en) * 2007-09-19 2009-03-19 Rogers Bryan L Staged Tooling Technology
CA2660209C (en) * 2008-03-28 2017-04-25 Outils Gladu S.E.N.C. Universal rotary cutter head with back clamping system and constant cutting dimensions and constant weight regridable inserts
US9095854B2 (en) * 2011-06-06 2015-08-04 David Roy Chipper striker assembly
CN103231123B (en) * 2013-05-08 2015-01-28 王洪国 Lower scraping knife sleeve of slag scraping machine and slag scraping machine
CN103433092B (en) * 2013-08-28 2015-08-19 湖南万通科技有限公司 Coal transporting breaking machine, crushing toothed roller and crushing teeth assembly thereof
CN103406182B (en) * 2013-08-28 2016-07-06 湖南万通科技股份有限公司 Crushing teeth assembly and toothholder thereof
DK3075477T3 (en) * 2015-04-01 2019-01-14 Ledermann Gmbh & Co Kg Milling tool and cutting element for use in a milling tool
CH713020A1 (en) * 2016-10-10 2018-04-13 Oertli Werkzeuge Ag Cutterhead and cutterhead system, especially for a woodworking machine.
US10960569B2 (en) * 2019-05-01 2021-03-30 Dk-Spec Inc. Planer head

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1269378A (en) * 1917-11-10 1918-06-11 Lemuel T Bunch Molding-face cutter.
US1799120A (en) * 1929-03-07 1931-03-31 Henry Disston & Sons Inc Knife-clamping device for cutter heads
US2207909A (en) * 1938-06-13 1940-07-16 Goddard & Goddard Company Inc Milling cutter
US2917097A (en) * 1954-09-07 1959-12-15 Goodyear Tire & Rubber Tubeless tire valve
GB893198A (en) * 1959-10-19 1962-04-04 Stanley Frederick Smith Improvements in or relating to rotary cutter heads
GB1316637A (en) * 1970-06-09 1973-05-09 Wadkin Ltd Rotary cutter for woodworking and similar machines
US4078868A (en) * 1977-04-06 1978-03-14 The Ingersoll Milling Machine Company Cutter having inserts clamped with wedges
GB2056366B (en) * 1979-08-16 1983-05-25 Whitehill Spindle Tools Ltd Rotary cutter heads
GB2087792B (en) * 1980-11-25 1985-03-06 Wadkin Ltd Profiling discs for woodworking machinery
US4423758A (en) * 1982-02-25 1984-01-03 Murray Machinery, Inc. Disc type wood chipper knife having position adjusting serrations
US4449556A (en) * 1982-08-20 1984-05-22 Wadkin Plc Rotary cutter heads
US4658875A (en) * 1986-03-24 1987-04-21 Bosko Grabovac Knife holder
DE3701053A1 (en) * 1987-01-16 1988-07-28 Weinig Michael Gmbh Co Kg KNIFE HEAD
US5176191A (en) * 1991-07-22 1993-01-05 Woodmaster Tools, Inc. Holder for rotating cutting knives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1123786A2 (en) * 2000-02-08 2001-08-16 Stehle GmbH & Co. KG Werkzeug- und Maschinenfabrik Milling head

Also Published As

Publication number Publication date
JPH08501989A (en) 1996-03-05
DE59307750D1 (en) 1998-01-08
ES2110631T3 (en) 1998-02-16
WO1994007665A1 (en) 1994-04-14
ATE160527T1 (en) 1997-12-15
JP2813604B2 (en) 1998-10-22
EP0726838A1 (en) 1996-08-21
DK0726838T3 (en) 1998-08-10
US5658101A (en) 1997-08-19
DE9213466U1 (en) 1993-01-07

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