EP0275073A2 - Milling head - Google Patents

Milling head Download PDF

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Publication number
EP0275073A2
EP0275073A2 EP88100298A EP88100298A EP0275073A2 EP 0275073 A2 EP0275073 A2 EP 0275073A2 EP 88100298 A EP88100298 A EP 88100298A EP 88100298 A EP88100298 A EP 88100298A EP 0275073 A2 EP0275073 A2 EP 0275073A2
Authority
EP
European Patent Office
Prior art keywords
knife
cutter head
head according
terminal block
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88100298A
Other languages
German (de)
French (fr)
Other versions
EP0275073A3 (en
EP0275073B1 (en
Inventor
Rudolf Weber
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.)
Michael Weinig AG
Original Assignee
MICHAEL WEINIG GmbH
Weinig Michael Co KG GmbH
Michael Weinig AG
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 MICHAEL WEINIG GmbH, Weinig Michael Co KG GmbH, Michael Weinig AG filed Critical MICHAEL WEINIG GmbH
Priority to AT88100298T priority Critical patent/ATE87853T1/en
Publication of EP0275073A2 publication Critical patent/EP0275073A2/en
Publication of EP0275073A3 publication Critical patent/EP0275073A3/en
Application granted granted Critical
Publication of EP0275073B1 publication Critical patent/EP0275073B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a cutter head according to the preamble of claim 1.
  • Such cutter heads are used in wood, plastic and metalworking machines and are equipped with knives that can be designed as profile knives. Planing or milling can be carried out with the cutter head. Since the knives wear out, it is necessary from time to time to re-sharpen and readjust them outwards across the axis of rotation of the carrier.
  • the knife In the generic knife head (US-PS 44 49 556), the knife is provided on its rear side with an axially parallel toothing, with which the knife engages in a corresponding counter toothing of the support part, which is supported on a side wall of the receptacle.
  • the support part can be adjusted transversely to the axis of rotation of the carrier with an eccentric screw.
  • the knife is taken over the toothing during adjustment. Since the knife has to be reground repeatedly, the protrusion of the knife over the support part has to be readjusted after several regrinding operations. As a result of the toothing, the knife must be loosened from the support part and reattached again.
  • the invention has for its object to design the generic cutter head so that the knives can be adjusted very precisely transverse to the axis of rotation of the carrier in a short time without the support part or the terminal block having to be adjusted.
  • the knife is guided with the guide part in the guide running in the adjustment direction.
  • the knife In the set installation position, the knife is secured in position by the stop against which it rests under the spring force. Since the stop is adjustable in the direction of adjustment of the knife, the adjustment of the knife can be achieved simply by adjusting the stop in the direction of adjustment of the knife to the desired extent. The knife is pushed under the spring force, so that the knife adjusts itself automatically when the stop is adjusted. Since the knife is adjustable relative to the support part, only the knife, but not the support part, has to be adjusted themselves or the terminal block can be adjusted. Rather, these parts remain in the receptacle in their respective installation position and only serve to clamp the knife in the respectively set position.
  • the cutter head is intended for woodworking machines, but can also be used for machines for plastics or metalworking.
  • the cutter head has a carrier 1 with a central bore 2 for a work spindle on which the cutter head can be pushed.
  • the carrier 1 is provided with groove-shaped receptacles 3, of which only one receptacle is shown in FIG. 1.
  • Thin inserts 4 are fastened in the receptacles 3 and have the same axial length as the carrier 1 (FIG. 2).
  • the cutting plates 4 are provided with a cutting profile 5. The cutting edge can also run straight.
  • the cutting plate 4 lies against the entire surface of a breast surface 6 of a support plate 7, which has the same axial length as the carrier 1.
  • the support plate 7 is adapted once to the wooden profile to be manufactured, so that the support plate has the same profile 8 on the cutting edge as the cutting plate 4 (Fig. 2).
  • the cutting plate 4 can be very thin, so that only a little of the expensive material of the cutting plates is required and the manufacturing time is shortened (conventional soldered cutting plates are susceptible to cracking during grinding).
  • the cutting plates 4 can consist of HSS, hard metal or stellite.
  • the support plate 7 has on its back surface 9 an axially parallel toothing 10 which engages in a corresponding axially parallel toothing 11 in one side wall 12 of the receptacle 3.
  • the cutting plate 4 is clamped between the support plate 7 and a clamping strip 13, which is also located in the receptacle 3 and is pressed against the cutting plate 4 by at least one, in the exemplary embodiment by two screws 14.
  • the screws 14 are screwed into threaded bores 15 which open into the peripheral surface 16 of the carrier 1 and are countersunk in the threaded bores.
  • the clamping strip 13 has, at least in the area of the screws 14, an oblique clamping surface 17 which is perpendicular to the axis of the screws 14 and on which the screws rest with their end faces (FIG. 1).
  • the clamping surface 17 lying at an acute angle to the plane containing the end face of the cutting plate 4, the clamping strip 13 is not only pressed by the screws 14 against the cutting plate 4, but also in the direction of the bottom 18 of the receptacle 3 on which the Terminal strip rests. As a result, the terminal block 13 is held securely in the receptacle 3.
  • the clamping surface 17 extends over the entire length of the clamping strip and is delimited on the side facing away from the receiving base 18 by a web 19 which overlaps the screws 14, seen in the axial direction.
  • the insert 4 is penetrated by two pins 20 and 21 which are perpendicular to it. They each protrude into a recess 22 and 23 in the chest surface 6 of the support plate 7.
  • the recesses 22, 23 extend perpendicular to the axis of rotation 24 of the cutter head and open into the lower end face 25 of the support plate 7.
  • the terminal block 13 is with corresponding, as Provided slots 26 and 27 formed slots, into which the pins 20, 21 also protrude.
  • the depressions 26, 27 are also perpendicular to the axis of rotation 24 and preferably have the same length as the depressions 22, 23 of the support plate 7.
  • the depressions 26, 27 each open into a threaded bore 28 and 29, which the terminal block 13 from the top 30 to Push through bottom 31. In each of the threaded bores 28, 29 there is a grub screw 32 and 33.
  • the cutting plate 4 is loaded by at least one, in the exemplary embodiment by two compression springs 34 and 35, which each engage in a recess 36 and 37 in the receiving base 18 and in recesses 38 and 39 in the lower end face 25 of the support plate 7 and recesses in the terminal block 13 .
  • the compression springs 34, 35 bear against the lower end face 40 of the cutting plate 4 under prestress.
  • the support plate 7 is positively connected to the carrier 1 in the radial direction via the toothing 10.
  • the terminal block 13 is secured in the axial direction by at least one pin 41 which sits in the underside 31 of the terminal block 13 and engages in a recess 42 in the groove bottom 18. Via the pins 20, 21, which are positively connected to the terminal block 13 in the axial direction, the cutting plate 4 and the support plate 7 are also positioned in the axial direction and secured in position.
  • the support plate 7, the cutting plate 4 and the terminal block 13 can be used as a unit in the receptacle 13 of the carrier 1.
  • the support plate 7 can be placed on the receiving base 18. The screws 14 are then tightened and the support plate 7 is pressed against the side wall 12 of the receptacle 3 via the clamping strip 13, centering of the support plate 7 taking place as a result of the interlocking toothings 10, 11. In this position, the support plate 7 has a small distance from the receiving base 8.
  • the support plate 7 is only adapted once to the wooden profile to be produced. In further resharpening operations of the cutting plate 4, only this thin cutting plate 4 is then reground, but no longer the support plate 7.
  • the axial positioning of the cutting plate 4, the support plate 7 and the clamping strip 13 takes place only in that the clamping strip 13 is inserted with the pin 41 into the recess 42, as a result of which the package consisting of the clamping strip, cutting insert and support plate is axially correct and exactly in the carrier 1 is positioned.
  • the cutting plate 4 can then be adjusted very sensitively and precisely in the radial position. For this purpose, after loosening the screws 14, it is only necessary to turn the grub screws 32, 33, which are easily accessible from the outside, until the desired radial position of the cutting plate 4 is reached.
  • the cutting plate 4 Since the Cutting plate 4 is under the force of the compression springs 34, 35, the cutting plate 4 is automatically readjusted when the grub screws 32, 33 are turned back, the pins 20, 21 of the cutting plate 4 always abutting the grub screws 32, 33. Conversely, if the grub screws 32, 33 are screwed into the threaded bores 28, 29 after loosening the screws 14, the cutting insert 4 is carried along by the pins 20, 21 against the force of the compression springs 34, 35. Thus, the protrusion of the cutting plate 4 with respect to the support plate 7 can be adjusted extremely precisely without the cutting plate 4 and the support plate 7 having to be removed.
  • the unit consisting of the terminal block, insert and support plate cannot be pulled out of the receptacle 3 because the screws 14 are still in the path of movement of the terminal block 13. Only when the screws 14 are almost completely unscrewed can this unit be pulled out of the receptacle 3. This ensures that the unit is not inadvertently pulled out of the groove 3 during the readjustment process.
  • the length of the recesses 22, 23 and 26, 27 of the support plate 7 and the clamping strip 13 which run perpendicular to the axis of rotation 24 and are designed as elongated holes determine the maximum radial adjustment of the cutting plate 4. If the pins 20, 21 strike the upper edge of the recesses, that is radial adjustment path of the cutting plate 4 is exhausted, so that the cutting plate 4 must now be replaced or turned.
  • pins 20, 21 are firmly connected to the cutting plate 4, it cannot fall out of the receptacle 3 even when screws 14 are loosened.
  • the pins 20, 21 prevent the cutting plate 4 from loosening both in the axial direction and in the radial direction.

Abstract

The cutter (4) of the milling head has a guide part (20, 21) which engages into a guide (22, 23; 26, 27) extending in the adjusting direction of the cutter. The cutter (4) bears under spring force against a stop (32, 33) adjustable in the adjusting direction of the cutter and can be adjusted relative to a supporting part (7).For the adjustment of the cutter (4) the stop (32, 33) is adjusted in the adjusting direction of the cutter (4) which is thereby pushed after it under the spring force. The supporting part (7) itself is not adjusted. The readjustment of the cutter (4) is consequently simple and time-saving. <IMAGE>

Description

Die Erfindung betrifft einen Messerkopf nach dem Oberbegriff des Anspruches 1.The invention relates to a cutter head according to the preamble of claim 1.

Solche Messerköpfe werden bei Holz-, Kunststoff- und Metallbearbeitungsmaschinen verwendet und sind mit Messern bestückt, die als Profilmesser ausgebildet sein können. Mit dem Messerkopf kann eine Hobel- oder eine Fräsbearbeitung durchgeführt werden. Da die Messer verschleißen, ist es notwendig, sie von Zeit zu Zeit nach außen hin quer zur Drehachse des Trägers nachzuschleifen und nachzustellen.Such cutter heads are used in wood, plastic and metalworking machines and are equipped with knives that can be designed as profile knives. Planing or milling can be carried out with the cutter head. Since the knives wear out, it is necessary from time to time to re-sharpen and readjust them outwards across the axis of rotation of the carrier.

Beim gattungsgemäßen Messerkopf (US-PS 44 49 556) ist das Messer an seiner Rückseite mit einer achsparallelen Verzahnung versehen, mit der das Messer in eine entsprechende Gegenverzahnung des Stützteiles eingreift, der an einer Seitenwand der Aufnahme abgestützt ist. Der Stützteil ist mit einer Exzenterschraube quer zur Drehachse des Trägers verstellbar. Über die Verzahnung wird bei der Nachstellung das Messer mitgenommen. Da das Messer immer wieder nachgeschliffen werden muß, muß der Überstand des Messers über den Stützteil nach mehreren Nachschleifoperationen neu eingestellt werden. Infolge der Verzahnung muß hierzu das Messer vom Stützteil gelöst und wieder neu angesetzt werden. Da der kleinste Nachstellweg durch die Zahnteilung der Verzahnung bestimmt wird, ist es in der Regel erforderlich, nach dem Versetzen des Messers gegenüber dem Stützteil mit der Exzenterschraube das Messer und den Stützteil nachzustellen, damit die Schneide des Messers auf dem gewünschten Flugkreis liegt. Eine solche Nachstellung des Messers ist zeit- und arbeitsaufwendig.In the generic knife head (US-PS 44 49 556), the knife is provided on its rear side with an axially parallel toothing, with which the knife engages in a corresponding counter toothing of the support part, which is supported on a side wall of the receptacle. The support part can be adjusted transversely to the axis of rotation of the carrier with an eccentric screw. The knife is taken over the toothing during adjustment. Since the knife has to be reground repeatedly, the protrusion of the knife over the support part has to be readjusted after several regrinding operations. As a result of the toothing, the knife must be loosened from the support part and reattached again. Since the smallest adjustment path is determined by the tooth pitch of the toothing, it is usually necessary after the knife has been moved readjust the knife and the support part opposite the support part with the eccentric screw, so that the cutting edge of the knife lies on the desired flight circle. Such an adjustment of the knife is time-consuming and labor-intensive.

Bei einem anderen bekannten Messerkopf (DE-PS 32 09 246) sind die Messer unverschieblich mit dem Stützteil verbunden. Zur Nachstellung des Messers muß darum der Stützteil quer zur Drehachse des Trägers verstellt werden. Da für diese Verstellung keine Verstelleinrichtung vorgesehen ist, ist die Verstellung äußerst zeitaufwendig und schwierig.In another known cutter head (DE-PS 32 09 246) the knives are immovably connected to the support part. To readjust the knife, the support part must therefore be adjusted transversely to the axis of rotation of the carrier. Since no adjustment device is provided for this adjustment, the adjustment is extremely time-consuming and difficult.

Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Messerkopf so auszubilden, daß die Messer in kurzer Zeit sehr genau quer zur Drehachse des Trägers nachgestellt werden können, ohne daß hierzu der Stützteil oder die Klemmleiste verstellt werden müssen.The invention has for its object to design the generic cutter head so that the knives can be adjusted very precisely transverse to the axis of rotation of the carrier in a short time without the support part or the terminal block having to be adjusted.

Diese Aufgabe wird beim gattungsgemäßen Messerkopf erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved with the generic cutter head according to the invention with the characterizing features of claim 1.

Beim erfindungsgemäßen Messerkopf wird das Messer mit dem Führungsteil in der in Verstellrichtung verlaufenden Führung geführt. In der eingestellten Einbaulage ist das Messer durch den Anschlag lagegesichert, an dem es unter der Federkraft anliegt. Da der Anschlag in Verstellrichtung des Messers verstellbar ist, kann die Nachstellung des Messers einfach dadurch erreicht werden, daß der Anschlag in Verstellrichtung des Messers im gewünschten Maße verstellt wird. Das Messer wird hierbei unter der Federkraft nachgeschoben, so daß sich das Messer automatisch beim Verstellen des Anschlages nachstellt. Da das Messer gegenüber dem Stützteil verstellbar ist, muß beim Nachstellen nur das Messer, nicht jedoch der Stützteil selbst oder die Klemmleiste verstellt werden. Diese Teile bleiben vielmehr in der Aufnahme in ihrer jeweiligen Einbaulage und dienen nur noch dazu, das Messer in der jeweils eingestellten Lage festzuklemmen.In the knife head according to the invention, the knife is guided with the guide part in the guide running in the adjustment direction. In the set installation position, the knife is secured in position by the stop against which it rests under the spring force. Since the stop is adjustable in the direction of adjustment of the knife, the adjustment of the knife can be achieved simply by adjusting the stop in the direction of adjustment of the knife to the desired extent. The knife is pushed under the spring force, so that the knife adjusts itself automatically when the stop is adjusted. Since the knife is adjustable relative to the support part, only the knife, but not the support part, has to be adjusted themselves or the terminal block can be adjusted. Rather, these parts remain in the receptacle in their respective installation position and only serve to clamp the knife in the respectively set position.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und den Zeichnungen.Further features of the invention result from the further claims, the description and the drawings.

Die Erfindung wird anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles näher erläutert. Es zeigen

  • Fig. 1 in Ansicht einen Teil eines erfindungsgemäßen Messerkopfes,
  • Fig. 2 teilweise eine Ansicht und teilweise einen Schnitt längs der Linie II-II in Fig. 1.
The invention is explained in more detail using an exemplary embodiment shown in the drawings. Show it
  • 1 is a view of part of a cutter head according to the invention,
  • 2 is a partial view and partially a section along the line II-II in Fig. 1st

Der Messerkopf ist für Holzbearbeitungsmaschinen vorgesehen, kann aber auch für Maschinen zur Kunststoff- ­oder Metallbearbeitung herangezogen werden. Der Messerkopf hat einen Träger 1 mit einer zentralen Bohrung 2 für eine Arbeitsspindel, auf die der Messerkopf aufgeschoben werden kann. Längs des äußeren Umfanges ist der Träger 1 mit nutförmigen Aufnahmen 3 versehen, von denen in Fig. 1 nur eine Aufnahme dargestellt ist. In den Aufnahmen 3 sind dünne Schneidplatten 4 befestigt, die gleiche axiale Länge wie der Träger 1 haben (Fig. 2). Im Ausführungsbeispiel sind die Schneidplatten 4 mit einem Schneidprofil 5 versehen. Die Schneide kann auch gerade verlaufen. Die Schneidplatte 4 liegt an einer Brustfläche 6 einer Stützplatte 7 ganzflächig an, die die gleiche axiale Länge wie der Träger 1 hat. Die Stützplatte 7 wird einmal dem herzustellenden Holzprofil angepaßt, so daß die Stützplatte das gleiche Profil 8 an der Schneide hat wie die Schneidplatte 4 (Fig. 2). Infolge der Stützplatte 7 kann die Schneidplatte 4 sehr dünn sein, so daß nur wenig von dem teuren Material der Schneidplatten benötigt wird und die Herstellzeit verkürzt wird (herkömmliche gelötete Schneidplatten sind beim Schleifen rißempfindlich). Die Schneidplatten 4 können aus HSS, aus Hartmetall oder Stellit bestehen.The cutter head is intended for woodworking machines, but can also be used for machines for plastics or metalworking. The cutter head has a carrier 1 with a central bore 2 for a work spindle on which the cutter head can be pushed. Along the outer circumference, the carrier 1 is provided with groove-shaped receptacles 3, of which only one receptacle is shown in FIG. 1. Thin inserts 4 are fastened in the receptacles 3 and have the same axial length as the carrier 1 (FIG. 2). In the exemplary embodiment, the cutting plates 4 are provided with a cutting profile 5. The cutting edge can also run straight. The cutting plate 4 lies against the entire surface of a breast surface 6 of a support plate 7, which has the same axial length as the carrier 1. The support plate 7 is adapted once to the wooden profile to be manufactured, so that the support plate has the same profile 8 on the cutting edge as the cutting plate 4 (Fig. 2). As a result of the support plate 7, the cutting plate 4 can be very thin, so that only a little of the expensive material of the cutting plates is required and the manufacturing time is shortened (conventional soldered cutting plates are susceptible to cracking during grinding). The cutting plates 4 can consist of HSS, hard metal or stellite.

Die Stützplatte 7 weist an ihrer Rückenfläche 9 eine achsparallel verlaufende Verzahnung 10 auf, die in eine entsprechend achsparallel verlaufende Verzahnung 11 in der einen Seitenwand 12 der Aufnahme 3 eingreift.The support plate 7 has on its back surface 9 an axially parallel toothing 10 which engages in a corresponding axially parallel toothing 11 in one side wall 12 of the receptacle 3.

In der Einbaulage ist die Schneidplatte 4 zwischen der Stützplatte 7 und einer Klemmleiste 13 eingeklemmt, die ebenfalls in der Aufnahme 3 liegt und durch wenigstens eine, im Ausführungsbeispiel durch zwei Schrauben 14 gegen die Schneidplatte 4 gedrückt wird. Die Schrauben 14 werden in Gewindebohrungen 15 geschraubt, die in die Umfangsfläche 16 des Trägers 1 münden und versenkt in den Gewindebohrungen liegen. Die Klemmleiste 13 weist zumindest im Bereich der Schrauben 14 eine schräge Klemmfläche 17 auf, die senkrecht zur Achse der Schrauben 14 liegt und an der die Schrauben mit ihrer Stirnseite aufliegen (Fig. 1). Infolge der unter einem spitzen Winkel zu der die Stirnseite der Schneidplatte 4 enthaltenden Ebene liegenden Klemmfläche 17 wird die Klemmleiste 13 durch die Schrauben 14 nicht nur gegen die Schneidplatte 4 gedrückt, sondern auch in Richtung auf den Boden 18 der Aufnahme 3 gedrückt, auf dem die Klemmleiste aufliegt. Dadurch wird die Klemmleiste 13 sicher in der Aufnahme 3 gehalten. Die Klemmfläche 17 erstreckt sich im Ausführungsbeispiel über die gesamte Länge der Klemmleiste und wird an der vom Aufnahmeboden 18 abgewandten Seite von einem Steg 19 begrenzt, der die Schrauben 14, in Axialrichtung gesehen, übergreift.In the installed position, the cutting plate 4 is clamped between the support plate 7 and a clamping strip 13, which is also located in the receptacle 3 and is pressed against the cutting plate 4 by at least one, in the exemplary embodiment by two screws 14. The screws 14 are screwed into threaded bores 15 which open into the peripheral surface 16 of the carrier 1 and are countersunk in the threaded bores. The clamping strip 13 has, at least in the area of the screws 14, an oblique clamping surface 17 which is perpendicular to the axis of the screws 14 and on which the screws rest with their end faces (FIG. 1). As a result of the clamping surface 17 lying at an acute angle to the plane containing the end face of the cutting plate 4, the clamping strip 13 is not only pressed by the screws 14 against the cutting plate 4, but also in the direction of the bottom 18 of the receptacle 3 on which the Terminal strip rests. As a result, the terminal block 13 is held securely in the receptacle 3. In the exemplary embodiment, the clamping surface 17 extends over the entire length of the clamping strip and is delimited on the side facing away from the receiving base 18 by a web 19 which overlaps the screws 14, seen in the axial direction.

Die Schneidplatte 4 wird von zwei Stiften 20 und 21 durchsetzt, die senkrecht zu ihr verlaufen. Sie ragen jeweils in eine Vertiefung 22 und 23 in der Brustfläche 6 der Stützplatte 7. Die Vertiefungen 22, 23 erstrecken sich senkrecht zur Drehachse 24 des Messerkopfes und münden in die untere Stirnseite 25 der Stützplatte 7. Auch die Klemmleiste 13 ist mit entsprechenden, als Langlöcher ausgebildeten Vertiefungen 26 und 27 versehen, in die die Stifte 20, 21 ebenfalls ragen. Die Vertiefungen 26, 27 liegen ebenfalls senkrecht zur Drehachse 24 und haben vorzugsweise gleiche Länge wie die Vertiefungen 22, 23 der Stützplatte 7. Die Vertiefungen 26, 27 münden in jeweils eine Gewindebohrung 28 und 29, die die Klemmleiste 13 von der Oberseite 30 bis zur Unterseite 31 durchsetzen. In den Gewindebohrungen 28, 29 befindet sich jeweils eine Madenschraube 32 und 33.The insert 4 is penetrated by two pins 20 and 21 which are perpendicular to it. They each protrude into a recess 22 and 23 in the chest surface 6 of the support plate 7. The recesses 22, 23 extend perpendicular to the axis of rotation 24 of the cutter head and open into the lower end face 25 of the support plate 7. Also the terminal block 13 is with corresponding, as Provided slots 26 and 27 formed slots, into which the pins 20, 21 also protrude. The depressions 26, 27 are also perpendicular to the axis of rotation 24 and preferably have the same length as the depressions 22, 23 of the support plate 7. The depressions 26, 27 each open into a threaded bore 28 and 29, which the terminal block 13 from the top 30 to Push through bottom 31. In each of the threaded bores 28, 29 there is a grub screw 32 and 33.

Die Schneidplatte 4 ist durch wenigstens eine, im Ausführungsbeispiel durch zwei Druckfedern 34 und 35 belastet, die jeweils in eine Vertiefung 36 und 37 im Aufnahmeboden 18 sowie in Vertiefungen 38 und 39 in der unteren Stirnseite 25 der Stützplatte 7 und Vertiefungen in der Klemmleiste 13 eingreifen. Außerdem liegen die Druckfedern 34, 35 an der unteren Stirnseite 40 der Schneidplatte 4 unter Vorspannung an.The cutting plate 4 is loaded by at least one, in the exemplary embodiment by two compression springs 34 and 35, which each engage in a recess 36 and 37 in the receiving base 18 and in recesses 38 and 39 in the lower end face 25 of the support plate 7 and recesses in the terminal block 13 . In addition, the compression springs 34, 35 bear against the lower end face 40 of the cutting plate 4 under prestress.

Unter der Kraft der beiden Druckfedern 34, 35 liegen die Stifte 20, 21, die fest mit der Schneidplatte 4 verbunden sind und durch die Vertiefungen 26, 27 in die Gewindebohrungen 28, 29 der Klemmleiste 13 ragen, an der Unterseite der Madenschrauben 32, 33 an. Sie dienen somit als Radialanschläge, welche die radiale Lage der Schneidplatte 4 bestimmen. Die Stützplatte 7 ist über die Verzahnung 10 in radialer Richtung formschlüssig mit dem Träger 1 verbunden.Under the force of the two compression springs 34, 35, the pins 20, 21, which are firmly connected to the cutting plate 4 and project through the recesses 26, 27 into the threaded bores 28, 29 of the terminal block 13, on the underside of the grub screws 32, 33 at. They thus serve as radial stops, which determine the radial position of the cutting plate 4. The support plate 7 is positively connected to the carrier 1 in the radial direction via the toothing 10.

Die Klemmleiste 13 ist in Axialrichtung durch wenigstens einen Stift 41 gesichert, der in der Unterseite 31 der Klemmleiste 13 sitzt und in eine Vertiefung 42 im Nutboden 18 eingreift. Über die Stifte 20, 21, die in Axialrichtung formschlüssig mit der Klemmleiste 13 verbunden sind, werden auch die Schneidplatte 4 und die Stützplatte 7 in Axialrichtung positioniert und lagegesichert.The terminal block 13 is secured in the axial direction by at least one pin 41 which sits in the underside 31 of the terminal block 13 and engages in a recess 42 in the groove bottom 18. Via the pins 20, 21, which are positively connected to the terminal block 13 in the axial direction, the cutting plate 4 and the support plate 7 are also positioned in the axial direction and secured in position.

Bei der Montage können die Stützplatte 7, die Schneidplatte 4 und die Klemmleiste 13 als Einheit in die Aufnahme 13 des Trägers 1 eingesetzt werden. Zur Montagehilfe kann die Stützplatte 7 auf den Aufnahmeboden 18 aufgesetzt werden. Anschließend werden die Schrauben 14 angezogen und über die Klemmleiste 13 die Stützplatte 7 gegen die Seitenwand 12 der Aufnahme 3 gedrückt, wobei infolge der ineinander­greifenden Verzahnungen 10, 11 eine Zentrierung der Stütz­platte 7 stattfindet. In dieser Lage hat die Stützplatte 7 geringen Abstand vom Aufnahmeboden 8. Die Stützplatte 7 wird nur einmal dem herzustellenden Holzprofil angepaßt. Bei weiteren Nachschärfvorgängen der Schneidplatte 4 wird dann nur jeweils diese dünne Schneidplatte 4 nachge­schliffen, nicht mehr jedoch die Stützplatte 7. Dadurch wird eine erhebliche Einsparung an Messermaterial, an Schleifzeit und Schleifscheibenkosten erreicht. Die axiale Positionierung der Schneidplatte 4, der Stützplatte 7 und der Klemmleiste 13 erfolgt lediglich dadurch, daß die Klemmleiste 13 mit dem Stift 41 in die Aussparung 42 gesteckt wird, wodurch das aus Klemmleiste, Schneidplatte und Stützplatte bestehende Paket einwandfrei und genau im Träger 1 axial positioniert wird. Die Schneidplatte 4 kann dann in radialer Lage sehr feinfühlig und genau eingestellt werden. Hierzu ist es nach dem Lockern der Schrauben 14 nur notwendig, die Madenschrauben 32, 33, die von außen leicht zugänglich sind, so weit zu verdrehen, bis die gewünschte radiale Lage der Schneidplatte 4 erreicht ist. Da die Schneidplatte 4 unter der Kraft der Druckfedern 34, 35 steht, wird die Schneidplatte 4 beim Zurückdrehen der Madenschrauben 32, 33 jeweils automatisch nachgestellt, wobei die Stifte 20, 21 der Schneidplatte 4 stets an den Madenschrauben 32, 33 anliegen. Werden umgekehrt die Madenschrauben 32, 33 nach Lockern der Schrauben 14 in die Gewindebohrungen 28, 29 geschraubt, wird die Schneidplatte 4 über die Stifte 20, 21 gegen die Kraft der Druckfedern 34, 35 mitgenommen. Somit kann der Überstand der Schneidplatte 4 in bezug auf die Stützplatte 7 äußerst genau eingestellt werden, ohne daß die Schneidplatte 4 und die Stützplatte 7 ausgebaut werden müssen. Auch wenn die Schrauben 14 gelockert sind, kann die Einheit aus Klemmleiste, Schneidplatte und Stützplatte nicht aus der Aufnahme 3 herausgezogen werden, weil die Schrauben 14 noch im Bewegungsweg der Klemmleiste 13 liegen. Erst wenn die Schrauben 14 nahezu vollständig zurückgeschraubt sind, kann diese Einheit aus der Aufnahme 3 herausgezogen werden. Auf diese Weise wird sichergestellt, daß während des Nachstellvorganges die Einheit nicht unbeabsichtigt aus der Nut 3 gezogen wird. Die Länge der senkrecht zur Drehachse 24 verlaufenden und als Langlöcher ausgebildeten Vertiefungen 22, 23 und 26, 27 der Stützplatte 7 und der Klemmleiste 13 bestimmen die maximale Radialnachstellung der Schneidplatte 4. Wenn die Stifte 20, 21 am oberen Rand der Vertiefungen anschlagen, ist der radiale Nachstellweg der Schneidplatte 4 erschöpft, so daß nunmehr die Schneidplatte 4 ausgewechselt oder gewendet werden muß.During assembly, the support plate 7, the cutting plate 4 and the terminal block 13 can be used as a unit in the receptacle 13 of the carrier 1. To assist assembly, the support plate 7 can be placed on the receiving base 18. The screws 14 are then tightened and the support plate 7 is pressed against the side wall 12 of the receptacle 3 via the clamping strip 13, centering of the support plate 7 taking place as a result of the interlocking toothings 10, 11. In this position, the support plate 7 has a small distance from the receiving base 8. The support plate 7 is only adapted once to the wooden profile to be produced. In further resharpening operations of the cutting plate 4, only this thin cutting plate 4 is then reground, but no longer the support plate 7. This results in a considerable saving in knife material, grinding time and grinding wheel costs. The axial positioning of the cutting plate 4, the support plate 7 and the clamping strip 13 takes place only in that the clamping strip 13 is inserted with the pin 41 into the recess 42, as a result of which the package consisting of the clamping strip, cutting insert and support plate is axially correct and exactly in the carrier 1 is positioned. The cutting plate 4 can then be adjusted very sensitively and precisely in the radial position. For this purpose, after loosening the screws 14, it is only necessary to turn the grub screws 32, 33, which are easily accessible from the outside, until the desired radial position of the cutting plate 4 is reached. Since the Cutting plate 4 is under the force of the compression springs 34, 35, the cutting plate 4 is automatically readjusted when the grub screws 32, 33 are turned back, the pins 20, 21 of the cutting plate 4 always abutting the grub screws 32, 33. Conversely, if the grub screws 32, 33 are screwed into the threaded bores 28, 29 after loosening the screws 14, the cutting insert 4 is carried along by the pins 20, 21 against the force of the compression springs 34, 35. Thus, the protrusion of the cutting plate 4 with respect to the support plate 7 can be adjusted extremely precisely without the cutting plate 4 and the support plate 7 having to be removed. Even if the screws 14 are loosened, the unit consisting of the terminal block, insert and support plate cannot be pulled out of the receptacle 3 because the screws 14 are still in the path of movement of the terminal block 13. Only when the screws 14 are almost completely unscrewed can this unit be pulled out of the receptacle 3. This ensures that the unit is not inadvertently pulled out of the groove 3 during the readjustment process. The length of the recesses 22, 23 and 26, 27 of the support plate 7 and the clamping strip 13 which run perpendicular to the axis of rotation 24 and are designed as elongated holes determine the maximum radial adjustment of the cutting plate 4. If the pins 20, 21 strike the upper edge of the recesses, that is radial adjustment path of the cutting plate 4 is exhausted, so that the cutting plate 4 must now be replaced or turned.

Da die Stifte 20, 21 mit der Schneidplatte 4 fest verbunden sind, kann sie auch bei gelockerten Schrauben 14 nicht aus der Aufnahme 3 herausfallen. Sowohl in Axialrichtung als auch in Radialrichtung verhindern die Stifte 20, 21 ein Lösen der Schneidplatte 4.Since the pins 20, 21 are firmly connected to the cutting plate 4, it cannot fall out of the receptacle 3 even when screws 14 are loosened. The pins 20, 21 prevent the cutting plate 4 from loosening both in the axial direction and in the radial direction.

Claims (10)

1. Messerkopf mit einem Träger, der über seinen Umfang verteilt angeordnete Aufnahmen aufweist, in denen jeweils ein Messer untergebracht ist, das zwischen einer Klemmleiste und einem Stützteil eingeklemmt und quer zur Drehachse des Trägers mit einer Verstelleinrichtung verstellbar ist,
dadurch gekennzeichnet,
daß das Messer (4) mindestens einen Führungsteil (20, 21) aufweist, der in eine in Verstellrichtung des Messers sich erstreckende Führung (22, 23; 26, 27) eingreift, und daß das Messer (4) unter Federkraft an mindestens einem in Verstellrichtung des Messers (4) verstellbaren Anschlag (32, 33) anliegt und gegenüber dem Stützteil (7) verstellbar ist.1. knife head with a carrier which has receptacles distributed over its circumference, in each of which a knife is accommodated, which is clamped between a terminal strip and a supporting part and is adjustable with an adjusting device transversely to the axis of rotation of the carrier,
characterized by
that the knife (4) has at least one guide part (20, 21) which engages in a guide (22, 23; 26, 27) extending in the adjustment direction of the knife, and that the knife (4) under spring force on at least one in The direction of adjustment of the knife (4) adjoins the adjustable stop (32, 33) and is adjustable relative to the support part (7). 2. Messerkopf nach Anspruch 1, dadurch gekennzeichnet, daß der Führungsteil (20, 21) durch einen das Messer (4) durchsetzenden und fest mit ihm verbundenen Stift gebildet ist.2. Cutter head according to claim 1, characterized in that the guide part (20, 21) is formed by a pin penetrating the knife (4) and firmly connected to it. 3. Messerkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Führung (22, 23; 26, 27) im Stützteil (7) und/oder der Klemmleiste (13) vorgesehen ist.3. Cutter head according to claim 1 or 2, characterized in that the guide (22, 23; 26, 27) in the support part (7) and / or the terminal block (13) is provided. 4. Messerkopf nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Führung (22, 23; 26, 27) durch eine Vertiefung im Stützteil (7) und/oder der Klemmleiste (13) gebildet ist.4. Cutter head according to one of claims 1 to 3, characterized in that the guide (22, 23; 26, 27) is formed by a recess in the support part (7) and / or the terminal block (13). 5. Messerkopf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Anschlag (32, 33) eine Schraube ist, die in eine vorzugsweise in Verstellrichtung des Messers (4) verlaufende Gewindebohrung (28, 29) in der Klemmleiste (13) geschraubt ist.5. Cutter head according to one of claims 1 to 4, characterized in that the stop (32, 33) is a screw which in a preferably in the adjustment direction of the knife (4) extending threaded bore (28, 29) in the terminal block (13) is screwed. 6. Messerkopf nach Anspruch 5, dadurch gekennzeichnet, daß der Führungsteil (20, 21) durch die Führung (26, 27) der Klemmleiste (13) in die Gewindebohrung (28, 29) ragt.6. Cutter head according to claim 5, characterized in that the guide part (20, 21) through the guide (26, 27) of the terminal block (13) projects into the threaded bore (28, 29). 7. Messerkopf nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Messer (4) in Verstellrichtung durch mindestens eine Druckfeder (34, 35) belastet ist, die in eine Vertiefung (36, 37) im Träger (1) und in eine Vertiefung (38, 39) im Stützteil (7) eingreift.7. Cutter head according to one of claims 1 to 6, characterized in that the knife (4) is loaded in the adjustment direction by at least one compression spring (34, 35) which in a recess (36, 37) in the carrier (1) and in a recess (38, 39) engages in the support part (7). 8. Messerkopf nach einem der Ansprüche 1 bis 7 , dadurch gekennzeichnet, daß der Stützteil (7) durch eine quer zur Messer-Verstellrichtung verlaufende Verzahnung (10) mit einer Gegenverzahnung (11) einer Seitenwand (12) der Aufnahme (3) in Eingriff ist.8. Cutter head according to one of claims 1 to 7, characterized in that the support part (7) by a toothing extending transversely to the knife adjustment direction (10) with a counter toothing (11) of a side wall (12) of the receptacle (3) in engagement is. 9. Messerkopf nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die aus Klemmleiste (13), Messer (4) und Stützteil (7) bestehende Einheit in Axialrichtung des Trägers (1) unverstellbar ist.9. Cutter head according to one of claims 1 to 8, characterized in that the unit consisting of terminal block (13), knife (4) and support part (7) in the axial direction of the carrier (1) is not adjustable. 10. Messerkopf nach Anspruch 9, dadurch gekennzeichnet, daß in der Klemmleiste (13) mindestens ein vorstehender Formschlußteil (41) vorgesehen ist, der in den Boden (18) der Aufnahme (3) eingreift.10. Cutter head according to claim 9, characterized in that in the terminal block (13) at least one projecting form-locking part (41) is provided which engages in the bottom (18) of the receptacle (3).
EP88100298A 1987-01-16 1988-01-12 Milling head Expired - Lifetime EP0275073B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100298T ATE87853T1 (en) 1987-01-16 1988-01-12 KNIFE HEAD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873701053 DE3701053A1 (en) 1987-01-16 1987-01-16 KNIFE HEAD
DE3701053 1987-01-16

Publications (3)

Publication Number Publication Date
EP0275073A2 true EP0275073A2 (en) 1988-07-20
EP0275073A3 EP0275073A3 (en) 1989-11-23
EP0275073B1 EP0275073B1 (en) 1993-04-07

Family

ID=6318899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100298A Expired - Lifetime EP0275073B1 (en) 1987-01-16 1988-01-12 Milling head

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EP (1) EP0275073B1 (en)
AT (1) ATE87853T1 (en)
DE (2) DE3701053A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345570A1 (en) * 1988-06-07 1989-12-13 HAPRO GmbH Clamping indexable cutters in a rotary head for working wood or similar material
WO1994007665A1 (en) * 1992-10-07 1994-04-14 Gebr. Leitz Gmbh & Co. Milling head
AT216U1 (en) * 1994-08-29 1995-05-26 Sperl Josef Sperl Josef DISC FOR SLOT AND PIN PROCESSING FOR WOODEN WINDOW MAKING AND KNIFE FOR SUCH A DISC
EP3305489A1 (en) * 2016-10-10 2018-04-11 Oertli Werkzeuge AG Cutterhead and cutterhead system
EP3623127A1 (en) * 2014-04-14 2020-03-18 Oertli Werkzeuge AG Tool head and method for positioning a cutting plate in the tool holder of the tool head

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10000330C2 (en) * 2000-01-07 2003-01-23 Hapro Holzbearbeitungs Werkzeu Rake-angle-adjustable insert clamping in cutter heads for woodworking

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Publication number Priority date Publication date Assignee Title
BE488684A (en) *
FR675367A (en) * 1929-05-17 1930-02-10 Mounting system for rotary machine tools and more particularly woodworking machines
FR766802A (en) * 1933-12-08 1934-07-04 Louis Arduino & Co Soc Improvements to adjustable blade tool holders
DE915265C (en) * 1951-09-29 1954-07-19 Paul Kirsten Dr Ing Knife shaft for woodworking machines with wedge-like pressure bars
CH403278A (en) * 1961-01-07 1965-11-30 Wilhelm Grupp Werkzeug Und Mas Knife shaft
DE2128797A1 (en) * 1970-06-09 1972-01-27 Wadkin Ltd., Leicester (Grossbritannien) Milling cutters for woodworking machines and similar machines

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209246C2 (en) * 1982-03-13 1984-12-20 Barke GmbH, 6384 Oberreifenberg Knife carrier of a planer knife
US4449556A (en) * 1982-08-20 1984-05-22 Wadkin Plc Rotary cutter heads

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE488684A (en) *
FR675367A (en) * 1929-05-17 1930-02-10 Mounting system for rotary machine tools and more particularly woodworking machines
FR766802A (en) * 1933-12-08 1934-07-04 Louis Arduino & Co Soc Improvements to adjustable blade tool holders
DE915265C (en) * 1951-09-29 1954-07-19 Paul Kirsten Dr Ing Knife shaft for woodworking machines with wedge-like pressure bars
CH403278A (en) * 1961-01-07 1965-11-30 Wilhelm Grupp Werkzeug Und Mas Knife shaft
DE2128797A1 (en) * 1970-06-09 1972-01-27 Wadkin Ltd., Leicester (Grossbritannien) Milling cutters for woodworking machines and similar machines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0345570A1 (en) * 1988-06-07 1989-12-13 HAPRO GmbH Clamping indexable cutters in a rotary head for working wood or similar material
WO1994007665A1 (en) * 1992-10-07 1994-04-14 Gebr. Leitz Gmbh & Co. Milling head
AT216U1 (en) * 1994-08-29 1995-05-26 Sperl Josef Sperl Josef DISC FOR SLOT AND PIN PROCESSING FOR WOODEN WINDOW MAKING AND KNIFE FOR SUCH A DISC
EP3623127A1 (en) * 2014-04-14 2020-03-18 Oertli Werkzeuge AG Tool head and method for positioning a cutting plate in the tool holder of the tool head
EP3305489A1 (en) * 2016-10-10 2018-04-11 Oertli Werkzeuge AG Cutterhead and cutterhead system
CH713020A1 (en) * 2016-10-10 2018-04-13 Oertli Werkzeuge Ag Cutterhead and cutterhead system, especially for a woodworking machine.

Also Published As

Publication number Publication date
DE3701053A1 (en) 1988-07-28
EP0275073A3 (en) 1989-11-23
ATE87853T1 (en) 1993-04-15
DE3879967D1 (en) 1993-05-13
EP0275073B1 (en) 1993-04-07

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