EP0449896A1 - Cutting machine. - Google Patents

Cutting machine.

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Publication number
EP0449896A1
EP0449896A1 EP19900900760 EP90900760A EP0449896A1 EP 0449896 A1 EP0449896 A1 EP 0449896A1 EP 19900900760 EP19900900760 EP 19900900760 EP 90900760 A EP90900760 A EP 90900760A EP 0449896 A1 EP0449896 A1 EP 0449896A1
Authority
EP
European Patent Office
Prior art keywords
cutting machine
machine according
groove
knife
profile part
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
EP19900900760
Other languages
German (de)
French (fr)
Other versions
EP0449896B1 (en
Inventor
Justus Lamprecht
Wolfgang Nagel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0449896A1 publication Critical patent/EP0449896A1/en
Application granted granted Critical
Publication of EP0449896B1 publication Critical patent/EP0449896B1/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 cutting machine according to the preamble of claim 1.
  • a knife holder for a planing machine is already known, in which the knife is clamped in a U-shaped groove by means of two profile parts.
  • the profile parts do not completely close the groove in the knife shaft, so that chips can get caught in the gaps. Since these hinder the planing work, they are removed by hand in the cone. There is a risk that the user injures himself on the sharp planing knives. It is also unfavorable that the screws for tensioning the knife can only be operated with an open-end wrench, which has to be implemented several times when tightening.
  • the cutting machine according to the invention with the characterizing features of claim 1 has the advantage that the chip flow is improved and no chips can get caught in the knife carrier and that noise is reduced.
  • the knife cutting device is very simple from only two profile parts constructed, the dimensional accuracy of which does not require any high requirements. The same also applies to the groove in the knife carrier, which, due to its rounded shape which is favorable in terms of production, weakens the knife carrier only minimally, as a result of which only very low tensions are caused in the knife carrier.
  • FIG. 1 shows a cutting machine designed as a planer
  • FIG. 2 shows a knife carrier in the form of a plane shaft
  • FIG. 3 shows a cross section through the knife carrier according to line III-III in FIG. 2
  • FIG. 4 also shows a cross section through a second exemplary embodiment Knife holder.
  • the electrically driven planer 1 has a support surface 2 for abutment against a workpiece, over which an Eobel shaft 3 with the knives 4 inserted protrudes (see FIG. 2).
  • the hollow shaft 3 rotates in the direction of the arrow and consists of a knife carrier 5, at least one radially further outward as a support bar 6 formed profile part, a radially outer profile part designed as a clamping strip 7 and a knife 4 designed as a turning knife.
  • the three parts 5, 6, 7 are to be manufactured as drawn profile parts, the knife carrier 5 preferably made of aluminum and the profile parts 6, 7 made of steel consist.
  • the terminal block 7 has three threaded bores 8 and two through holes 9 arranged in its end regions.
  • the knife carrier 5 preferably has two grooves 12 running in its axial direction, which have mutually facing side walls 13, 14, so that the groove 12 narrows outwards (see FIG. 3).
  • the side walls 13, 14 merge into fillets 15, 16 with a large diameter into the base area 17 of the groove 12.
  • the side wall 14 has a projection 18 with a rounded surface at the end of the groove in order to avoid sharp edge pressures.
  • the L-shaped support bar 6 inserted into the groove 12 has two legs 20, 21.
  • the leg 20 bears on the one hand on the side wall 13 and on the other hand on the knife 4.
  • a raised bar 22 facing the knife 4 on the leg 20 engages in a recess 23 of the knife 4.
  • the support strip 6 has an indentation 24 and then a bulge 25.
  • In the leg 21 there are two threaded bores 26, into which Allen screws 27 can be screwed for setting the flight circle diameter.
  • the screws 27 are supported against the base surface 17 of the groove 12.
  • Furthermore, in the leg 21 there are three depressions 28 which correspond to the threaded bores 8, but which are not absolutely necessary for the function of the clamping device 30 between the support strip 6 and the clamping strip 7.
  • the terminal block 7 has a cuboid-like shape with an inwardly curved surface 32 that is closed except for the bores 8, 9.
  • the terminal block rests on the one hand on the side wall 14 of the groove 12 and on the opposite side on the knife 4. Below the knife 4 the terminal strip 7 has a projection 33 which engages in the indentation 24 of the support strip 6.
  • the flight circle diameter of the knife edge 4 can be set independently of its clamping by means of the screws 27.
  • the screws 31 are screwed against the support bar 6, so that the clamping bar 7 is pivoted about an axis located in the region of the projection 33.
  • the strip 7 is pressed on the one hand against the knife 4 and on the other hand against the projection 18, always a closed one
  • the support bar 6 With the tensioning by means of the screws 31, the support bar 6 is simultaneously pressed against the side wall 13 of the groove 12, the side wall 13 giving way under certain circumstances if the material of the knife carrier has a high elasticity, as in the exemplary embodiment. Therefore, in order to avoid a gap between the side wall 13 and the support strip 6, the side wall 13 is inclined more inward by a small angle ⁇ than corresponds to the outside of the leg 20. When tensioning, the side wall 13 and the leg 20 then lie seamlessly against one another.
  • the second exemplary embodiment according to FIG. 4 differs from the first in other clamping and adjusting devices.
  • the same reference numbers have therefore been used for the same parts and reference numbers increased by 100 for similar parts.
  • the support strip 106 has in its leg 121 an externally open bore 135 extending in its longitudinal direction.
  • this bore 135 there is a rod-shaped eccentric 136 with a hexagon recess 137 for the tool engagement.
  • the eccentric 136 is supported in a recess 138 in the groove 12 and is used to set the flight circle diameter of the knife edge 4.
  • the terminal block 107 has a longitudinal bore 140 corresponding to the bore 135.
  • a rod-shaped eccentric 141 with hexagon recesses 142 at the ends is likewise inserted into this.
  • the eccentric 141 is mounted in a trough 143 in the support bar 106.
  • a rounded projection 118 is arranged here on the terminal strip 107.
  • the function of the second embodiment corresponds exactly to that of the first, with the only difference that for clamping and adjusting with the tool, the screw heads are not engaged from the surface 32, but in the axial direction to the knife carrier 105 from the side.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)

Abstract

Machine d'enlèvement de copeaux à système de serrage des lames. Dans une machine d'enlèvement de copeaux, notamment un rabot, on veut réduire le risque de blessure lors du retrait de copeaux coincés dans l'arbre de rabotage et faciliter le montage de la lame, tout en réduisant le bruit. A cet effet, on serre au moyen d'un dispositif de serrage (30) deux pièces profilées (6, 7) dans une rainure (12) du porte-lame (5), la lame (4) étant simultanément retenue. Les pièces profilées (6, 7) forment dans la rainure (12) une surface fermée sans lacunes. Un réglage ajustable au moyen de vis (27) indépendamment du dispositif de serrage (30) permet d'ajuster le diamètre du cercle de rotation de la lame (4). On peut utiliser ce système de serrage de la lame pour toutes machines d'enlèvement de copeaux, telles que rabots ou fraises, dans lesquelles il faut serrer des lames.Chip removal machine with blade clamping system. In a chip removal machine, especially a planer, it is desired to reduce the risk of injury when removing chips stuck in the planer shaft and to facilitate assembly of the blade, while reducing noise. To this end, two profiled parts (6, 7) are clamped by means of a clamping device (30) in a groove (12) of the blade holder (5), the blade (4) being simultaneously retained. The profiled parts (6, 7) form in the groove (12) a closed surface without gaps. An adjustable setting by means of screws (27) independently of the clamping device (30) allows the diameter of the rotation circle of the blade (4) to be adjusted. This blade clamping system can be used for all chip removal machines, such as planers or cutters, in which blades need to be clamped.

Description

Zerspanungsmaschine  Cutting machine
Stand der Technik State of the art
Die Erfindung geht aus von einer Zerspanungsmaschine nach der Gattung des Anspruchs 1. Aus dem DE-GM 80 06 414 ist bereits eine Messerhalterung für eine Hobelmaschine bekannt, bei der das Messer in einer U-förmigen Nut mittels zweier Profilteile eingespannt ist. Die Profilteile verschließen dabei die Nut in der Messerwelle jedoch nicht vollständig, sodaß Späne in den Zwischenräumen hängenbleiben können. Da diese die Hobelarbeit behindern, werden sie in der Kegel von Hand wieder entfernt. Dabei besteht die Gefahr, daß der Benutzer sich an den scharfen Hobelmessern verletzt. Ungünstig ist weiterhin, daß die Schrauben zum Spannen des Messers nur mit einem Gabelschlüssel bedienbar sind, der beim Anziehen mehrmals umgesetzt werden muß. The invention relates to a cutting machine according to the preamble of claim 1. From DE-GM 80 06 414 a knife holder for a planing machine is already known, in which the knife is clamped in a U-shaped groove by means of two profile parts. However, the profile parts do not completely close the groove in the knife shaft, so that chips can get caught in the gaps. Since these hinder the planing work, they are removed by hand in the cone. There is a risk that the user injures himself on the sharp planing knives. It is also unfavorable that the screws for tensioning the knife can only be operated with an open-end wrench, which has to be implemented several times when tightening.
Vorteile der Erfindung Advantages of the invention
Die erfindungsgemäße Zerspanungsmaschine mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß der Spanabfluß verbessert wird und sich in dem Messerträger keine Späne verfangen können sowie daß eine Geräuschverminderung eintritt. Die Messerspanvorrichtung ist sehr einfach aus nur zwei Profilteilen aufgebaut, an deren Maßgenauigkeit keine hohen Anforderungen gestellt zu werden brauchen. Dasselbe gilt auch für die Nut im Messerträger, die im übrigen wegen ihrer fertigungsgünstigen und abgerundeten Form den Messerträger nur minimal schwächt, wodurch nur sehr geringe Spannungen im Messerträger verursacht werden. The cutting machine according to the invention with the characterizing features of claim 1 has the advantage that the chip flow is improved and no chips can get caught in the knife carrier and that noise is reduced. The knife cutting device is very simple from only two profile parts constructed, the dimensional accuracy of which does not require any high requirements. The same also applies to the groove in the knife carrier, which, due to its rounded shape which is favorable in terms of production, weakens the knife carrier only minimally, as a result of which only very low tensions are caused in the knife carrier.
Durch die in den Ansprüchen 2 ff aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Anspruch 1 angegebenen Zerspanungsmaschine möglich. Besonders vorteilhaft ist es, daß das Messer maschinell leicht montiert werden kann, u. a. deshalb, weil die Köpfe der Spann- und Justierschrauben leicht zugänglich sind. Durch die Ausbildung eines Drehpunktes zwischen den Profilteilen wird wegen der resultierenden Hebelwirkung eine Spannkraftverstärkung erzielt. Advantageous further developments and improvements of the cutting machine specified in claim 1 are possible through the measures listed in claims 2 ff. It is particularly advantageous that the knife can be easily assembled mechanically, u. a. This is because the heads of the tensioning and adjusting screws are easily accessible. The formation of a fulcrum between the profile parts results in a strengthening of the clamping force due to the resulting leverage.
Zeichnung drawing
Zwei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Figur 1 zeigt in Ansicht eine als Hobel ausgebildete Zerspanungsmaschine, Figur 2 zeigt einen Messerträger in Form einer Hobelwelle, Figur 3 zeigt einen Querschnitt durch den Messerträger gemäß Linie III-III in Figur 2 und Figur 4 zeigt in einem zweiten Ausführungsbeispiel ebenfalls einen Querschnitt durch einen Messerträger. Two embodiments of the invention are shown in the drawing and explained in more detail in the following description. FIG. 1 shows a cutting machine designed as a planer, FIG. 2 shows a knife carrier in the form of a plane shaft, FIG. 3 shows a cross section through the knife carrier according to line III-III in FIG. 2 and FIG. 4 also shows a cross section through a second exemplary embodiment Knife holder.
Beschreibung der Ausführungsbeispiele Description of the embodiments
Der elektrisch angetriebene Hobel 1 weist eine Auflagefläche 2 zur Anlage an ein Werkstück auf, über die eine Eobelwelle 3 mit eingesetzten Messern 4 übersteht (siehe Figur 2). Die Hobeiwelle 3 dreht sich in Pfeilrichtung und besteht aus einem Messerträger 5, mindestens einem radial weiter außen liegenden als Stützleiste 6 ausge bildeten Profilteil, einem radial außen liegenden als Klemmleiste 7 ausgebildeten Profilteil und einem als Wendemesser ausgeführten Messer 4. Die drei Teile 5, 6, 7 sind als gezogene Profilteile zu fertigen, wobei der Messerträger 5 vorzugsweise aus Aluminium und die Profilteile 6, 7 aus Stahl bestehen. Die Klemmleiste 7 weist drei Gewindebohrungen 8 sowie zwei in ihren Endbereichen angeordnete Durchgangslöcher 9 auf. The electrically driven planer 1 has a support surface 2 for abutment against a workpiece, over which an Eobel shaft 3 with the knives 4 inserted protrudes (see FIG. 2). The hollow shaft 3 rotates in the direction of the arrow and consists of a knife carrier 5, at least one radially further outward as a support bar 6 formed profile part, a radially outer profile part designed as a clamping strip 7 and a knife 4 designed as a turning knife. The three parts 5, 6, 7 are to be manufactured as drawn profile parts, the knife carrier 5 preferably made of aluminum and the profile parts 6, 7 made of steel consist. The terminal block 7 has three threaded bores 8 and two through holes 9 arranged in its end regions.
Der Messerträger 5 weist vorzugsweise zwei in seiner Achsrichtung verlaufende Nuten 12 auf, die einander zugewandte Seitenwände 13, 14 haben, so daß sich die Nut 12 nach außen hin verengt (siehe Figur 3). Die Seitenwände 13, 14 gehen aus Festigkeitsgründen in Ausrundungen 15, 16 mit großem Durchmesser in die Grundfläche 17 der Nut 12 über. Die Seitenwand 14 weist am Ende der Nut einen Vorsprung 18 mit abgerundeter Oberfläche auf, um scharfe Kantenpressungen zu vermeiden. The knife carrier 5 preferably has two grooves 12 running in its axial direction, which have mutually facing side walls 13, 14, so that the groove 12 narrows outwards (see FIG. 3). For strength reasons, the side walls 13, 14 merge into fillets 15, 16 with a large diameter into the base area 17 of the groove 12. The side wall 14 has a projection 18 with a rounded surface at the end of the groove in order to avoid sharp edge pressures.
Die in die Nut 12 eingelegte L-förmige Stützleiste 6 weist zwei Schenkel 20, 21 auf. Der Schenkel 20 liegt einerseits an der Seitenwand 13 und andererseits an dem Messer 4 an. Eine dem Messer 4 zugewandte erhabene Leiste 22 auf dem Schenkel 20 greift in eine Ausnehmung 23 des Messers 4 ein. In der Ecke zwischen ihren beiden Schenkeln 20, 21 hat die Stützleiste 6 eine Einbuchtung 24 und daran anschließend eine Ausbauchung 25. In dem Schenkel 21 befinden sich zwei Gewindebohrungen 26, in die Imbusschrauben 27 zur Einstellung des Flugkreisdurchmessers einschraubbar sind. Die Schrauben 27 stützen sich gegen die Grundfläche 17 der Nut 12 ab. Weiter befinden sich in dem Schenkel 21 drei mit den Gewindebohrungen 8 korrespondierende Vertiefungen 28, die jedoch für die Funktion der Spannvorrichtung 30 zwischen der Stützleiste 6 und der Klemmleiste 7 nicht unbedingt erforderlich sind. In die Gewindebohrungen der Klemmleiste 7 sind Imbusschrauben 31 einsetzbar, die sich in den Vertiefungen 28 abstützen und mit denen die beiden Profilteile 6 und 7 auseinander spannbar sind. Die Klemmleiste 7 hat eine quaderähnliche Form mit einer bis auf die Bohrungen 8, 9 geschlossenenen, nach innen gewölbten Oberfläche 32. Die Klemmleiste liegt einerseits an der Seitenwand 14 der Nut 12 an und auf der gegenüberliegenden Seite an dem Messer 4. Unterhalb des Messers 4 weist die Klemmleiste 7 einen Vorsprung 33 auf, der in die Einbuchtung 24 der Stützleiste 6 eingreift. The L-shaped support bar 6 inserted into the groove 12 has two legs 20, 21. The leg 20 bears on the one hand on the side wall 13 and on the other hand on the knife 4. A raised bar 22 facing the knife 4 on the leg 20 engages in a recess 23 of the knife 4. In the corner between its two legs 20, 21, the support strip 6 has an indentation 24 and then a bulge 25. In the leg 21 there are two threaded bores 26, into which Allen screws 27 can be screwed for setting the flight circle diameter. The screws 27 are supported against the base surface 17 of the groove 12. Furthermore, in the leg 21 there are three depressions 28 which correspond to the threaded bores 8, but which are not absolutely necessary for the function of the clamping device 30 between the support strip 6 and the clamping strip 7. Allen screws 31 can be inserted into the threaded bores of the terminal block 7, which are supported in the recesses 28 and with which the two profile parts 6 and 7 can be tensioned apart. The terminal block 7 has a cuboid-like shape with an inwardly curved surface 32 that is closed except for the bores 8, 9. The terminal block rests on the one hand on the side wall 14 of the groove 12 and on the opposite side on the knife 4. Below the knife 4 the terminal strip 7 has a projection 33 which engages in the indentation 24 of the support strip 6.
Mit dem Messerspannsystem der Zerspanungsmaschine läßt sich der Flugkreisdurchmesser der Messerschneide 4 unabhängig von deren Einspannung mittels der Schrauben 27 einstellen. Zum Spannen des Messers 4 werden die Schrauben 31 gegen die Stützleiste 6 geschraubt, so daß die Klemmleiste 7 eine Schwenkbewegung um eine Achse, die sich im Bereich des Vorsprungs 33 befindet, geschwenkt wird. Dabei wird die Leiste 7 einerseits gegen das Messer 4 und andererseits gegen den Vorsprung 18 gepreßt, wobei stets eine geschlossene With the knife clamping system of the cutting machine, the flight circle diameter of the knife edge 4 can be set independently of its clamping by means of the screws 27. To tension the knife 4, the screws 31 are screwed against the support bar 6, so that the clamping bar 7 is pivoted about an axis located in the region of the projection 33. The strip 7 is pressed on the one hand against the knife 4 and on the other hand against the projection 18, always a closed one
Oberfläche zwischen dem Messer 4 und der Seitenwand 14 der Nut 12 erhalten bleibt. Mit dem Spannen mittels der Schrauben 31 wird gleichzeitig auch die Stützleiste 6 gegen die Seitenwand 13 der Nut 12 gepreßt, wobei die Seitenwand 13 unter Umständen nachgibt, wenn der Werkstoff des Messerträgers wie im Ausführungsbeispiel eine hohe Elastizität aufweist. Daher wird zur Vermeidung eines Spaltes zwischen der Seitenwand 13 und der Stützleiste 6 die Seitenwand 13 um einen kleinen Winkelα stärker nach innen geneigt, als es der Außenseite des Schenkels 20 entspricht. Beim Spannen legen sich sodann die Seitenwand 13 und der Schenkel 20 nahtlos aneinander. Surface between the knife 4 and the side wall 14 of the groove 12 is preserved. With the tensioning by means of the screws 31, the support bar 6 is simultaneously pressed against the side wall 13 of the groove 12, the side wall 13 giving way under certain circumstances if the material of the knife carrier has a high elasticity, as in the exemplary embodiment. Therefore, in order to avoid a gap between the side wall 13 and the support strip 6, the side wall 13 is inclined more inward by a small angle α than corresponds to the outside of the leg 20. When tensioning, the side wall 13 and the leg 20 then lie seamlessly against one another.
Das zweite Ausführungsbeispiel nach Figur 4 unterscheidet sich durch andere Spann- und Justiereinrichtungen vom ersten. Für gleiche Teile wurden daher gleiche und für ähnliche Teile um 100 erhöhte Bezugszahlen verwendet. Die Stützleiste 106 hat in ihrem Schenkel 121 eine sich in ihrer Längsrichtung erstreckende außen offene Bohrung 135. In dieser Bohrung 135 befindet sich ein stangenförmiger Exzenter 136 mit einer Sechskantausnehmung 137 für den Werkzeugeingriff. Der Exzenter 136 stützt sich in einer Mulde 138 der Nut 12 ab und dient der Einstellung des Flugkreisdurchmessers der Messerschneide 4. The second exemplary embodiment according to FIG. 4 differs from the first in other clamping and adjusting devices. The same reference numbers have therefore been used for the same parts and reference numbers increased by 100 for similar parts. The support strip 106 has in its leg 121 an externally open bore 135 extending in its longitudinal direction. In this bore 135 there is a rod-shaped eccentric 136 with a hexagon recess 137 for the tool engagement. The eccentric 136 is supported in a recess 138 in the groove 12 and is used to set the flight circle diameter of the knife edge 4.
Die Klemmleiste 107 hat eine der Bohrung 135 entsprechende Längsbohrung 140. In diese ist ebenfalls ein stabförmiger Exzenter 141 mit Sechskantausnehmungen 142 an den Enden eingesetzt. Der Exzenter 141 ist in einer Mulde 143 in der Stützleiste 106 gelagert. Statt eines Vorsprungs an der Seitenwand 14 ist hier ein abgerundeter Vorsprung 118 an der Klemmleiste 107 angeordnet. The terminal block 107 has a longitudinal bore 140 corresponding to the bore 135. A rod-shaped eccentric 141 with hexagon recesses 142 at the ends is likewise inserted into this. The eccentric 141 is mounted in a trough 143 in the support bar 106. Instead of a projection on the side wall 14, a rounded projection 118 is arranged here on the terminal strip 107.
Die Funktion des zweiten Ausführungsbeispiels entspricht genau der des ersten, nur mit dem Unterschied, daß zum Spannen und Justieren mit dem Werkzeug nicht von der Oberfläche 32 aus in die Schraubenköpfe eingegriffen wird, sondern in zum Messerträger 105 axialer Richtung von der Seite her. The function of the second embodiment corresponds exactly to that of the first, with the only difference that for clamping and adjusting with the tool, the screw heads are not engaged from the surface 32, but in the axial direction to the knife carrier 105 from the side.

Claims

Ansprüche Expectations
1. Zerspanungsmaschine, insbesondere Handhobel zur Holzbearbeitung, mit einem drehend angetriebenen Messerträger, der am Umfang mindestens eine etwa U-förmige, sich radial nach außen verengende Nut aufweist, in der oder denen je ein Messer radial verstellbar und mittels jeweils zweier gegeneinander verspannter Profilteile spannbar sind, dadurch gekennzeichnet, daß eines (7, 107) der Profilteile (6, 106, 7, 107) den zwischen dem Messerträger (5, 105) und dem anderen Profilteil (6, 106) in der Nut (12) verbleibenden Raum nach radial außen vollständig und ohne Spalt verschließt. 1. Cutting machine, in particular a hand planer for woodworking, with a rotating driven knife carrier, which has at least one approximately U-shaped, radially narrowing groove on the circumference, in which each knife is radially adjustable and can be clamped by means of two mutually clamped profile parts are characterized in that one (7, 107) of the profile parts (6, 106, 7, 107) after the space remaining between the knife carrier (5, 105) and the other profile part (6, 106) in the groove (12) closes completely radially on the outside and without a gap.
2. Zerspanungsmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das eine radial außen liegende Profilteil (7, 107) mittels einer Spannvorrichtung (30), insbesondere einer Schraube (31) oder eines Exzenters (141), einerseits gegen das Messer (4) und andererseits gegen eine Seitenwand (14) der Nut (12) abgestützt ist. 2. Cutting machine according to claim 1, characterized in that the one radially outer profile part (7, 107) by means of a clamping device (30), in particular a screw (31) or an eccentric (141), on the one hand against the knife (4) and on the other hand is supported against a side wall (14) of the groove (12).
3. Zerspanungsmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Spannvorrichtung (30) gegen das andere radial innen liegende Profilteil (6, 106) wirkt. 3. Cutting machine according to claim 2, characterized in that the clamping device (30) acts against the other radially inner profile part (6, 106).
4. Zerspanungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß entweder das außen liegende Profilteil (7, 107) an der Seite, an der es an der Seitenwand (14) der Nut (12) anliegt, oder die Seitenwand (14) selbst am Rand der Nut (12) einen Vorsprung (18, 118) aufweist, so daß die beiden Teile nur in diesem Bereich aneinander anliegen. 4. Cutting machine according to one of the preceding claims, characterized in that either the outer profile part (7, 107) on the side on which it rests on the side wall (14) of the groove (12), or the side wall (14) itself has a projection (18, 118) on the edge of the groove (12) so that the two parts abut each other only in this area.
5. Zerspanungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das innen liegende Profilteil (6, 106 ) mittels eines Justierelements, insbesondere einer Schraube (27) oder eines Exzenters (136), gegenüber dem Messerträger (5, 105) radial verstellbar ist. 5. Cutting machine according to one of the preceding claims, characterized in that the internal profile part (6, 106) by means of an adjusting element, in particular a screw (27) or an eccentric (136), is radially adjustable relative to the knife carrier (5, 105) .
6. Zerspanungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Köpfe der Schrauben (27, 31) bzw. der Exzenter (136, 141) in deren Achsrichtung mittels eines Werkzeugs, insbesondere eines Imbusschlüssels oder eines Steckschlüssels, verstellbar sind. 6. Cutting machine according to one of the preceding claims, characterized in that the heads of the screws (27, 31) or the eccentric (136, 141) in the axial direction thereof by means of a tool, in particular an Allen key or a socket wrench, are adjustable.
7. Zerspanungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das innen liegende Profilteil (6, 106) eine etwa L-förmige Form aufweist und mit der Außenseite eines (20) seiner Schenkel an einer Seitenwand (13) der Nut (12) und mit der Innenseite dieses Schenkels (20) an dem Messer (4) anliegt. 7. Cutting machine according to one of the preceding claims, characterized in that the internal profile part (6, 106) has an approximately L-shaped shape and with the outside of one (20) of its legs on a side wall (13) of the groove (12) and rests against the knife (4) with the inside of this leg (20).
8. Zerspanungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Profilteile (6, 106, 7, 107) beim Spannen um einen Drehpunkt gegeneinander verschwenkbar sind. 8. Cutting machine according to one of the preceding claims, characterized in that the profile parts (6, 106, 7, 107) are pivotable relative to one another during clamping about a pivot point.
9. Zerspanungsmaschine nach Anspruch 8, äadurch gekennzeichnet, daß das erste Profilteil (6, 106) in seiner Ecke eine Einbuchtung (24) aufweist, in die ein Vorsprung (33) des außen liegenden Profilteils (7, 107) eingreift. 9. Cutting machine according to claim 8, characterized in that the first profile part (6, 106) has in its corner an indentation (24) into which a projection (33) of the outer profile part (7, 107) engages.
10. Zerspanungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Messerträger (5, 105) aus Aluminium und die Profilteile (6, 106, 7, 107) aus einem Werkstoff geringerer Elastizität gefertigt sind. 10. Cutting machine according to one of the preceding claims, characterized in that the knife carrier (5, 105) made of aluminum and the profile parts (6, 106, 7, 107) are made of a material of lower elasticity.
11. Zerspanungsmaschine nach Anspruch 10, dadurch gekennzeichnet, daß der Schenkel (20) des innen liegenden Profilteils (6, 106) und die daran anliegende Seitenwand (13) der Nut (12) einen Winkel (α) einschließen. 11. Cutting machine according to claim 10, characterized in that the leg (20) of the inner profile part (6, 106) and the adjacent side wall (13) of the groove (12) enclose an angle (α).
EP90900760A 1988-12-23 1989-12-14 Cutting machine Expired - Lifetime EP0449896B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3843466 1988-12-23
DE3843466A DE3843466A1 (en) 1988-12-23 1988-12-23 MACHINING MACHINE
PCT/DE1989/000768 WO1990007405A1 (en) 1988-12-23 1989-12-14 Cutting machine

Publications (2)

Publication Number Publication Date
EP0449896A1 true EP0449896A1 (en) 1991-10-09
EP0449896B1 EP0449896B1 (en) 1995-05-17

Family

ID=6369993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900760A Expired - Lifetime EP0449896B1 (en) 1988-12-23 1989-12-14 Cutting machine

Country Status (5)

Country Link
EP (1) EP0449896B1 (en)
JP (1) JP2935560B2 (en)
BR (1) BR8907849A (en)
DE (2) DE3843466A1 (en)
WO (1) WO1990007405A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI96288C (en) * 1995-04-20 1996-06-10 Kone Wood Oy Device for attaching the knife to the rotating disc of a chop
JP3197476B2 (en) * 1995-12-28 2001-08-13 兼房株式会社 Milling cutter
AT2192U1 (en) * 1997-07-22 1998-06-25 Aigner Werkzeuge Ges M B H KNIFE HEAD FOR A MILLING DEVICE
DE102006015692A1 (en) * 2006-03-29 2007-10-04 Michael Weinig Ag Workpiece processing machine, has tool e.g. front face cutter, comprising cutter rim surrounding inner table for supporting workpiece, where inner table is integral component of tool

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Publication number Priority date Publication date Assignee Title
DE318815C (en) * 1918-02-19 1920-02-12 Alexander Klehe Device for adjusting knives in knife heads and similar tools
US1490745A (en) * 1922-11-27 1924-04-15 Johnston Thomas Rotary planer head
DE1291887B (en) * 1963-08-03 1969-04-03 Lang Edmund Knife shaft or cutter head for woodworking machines
US3644050A (en) * 1970-04-02 1972-02-22 Waukesha Cutting Tools Inc Cartridge-type cutting tool with insert lock
DE2509304C2 (en) * 1975-03-04 1977-04-28 Karl Hertel DEVICE FOR CLAMPING A CUTTING KNIFE, E.G. ON KNIFE HEADS FOR WOOD CHIPPING
GB1500556A (en) * 1976-10-12 1978-02-08 Wickman Wimet Ltd Milling cutters
EP0042444B1 (en) * 1980-06-12 1983-12-21 Black & Decker Inc. Cutting blade assembly for a power planer
EP0048303B1 (en) * 1980-10-07 1985-06-26 Black & Decker Inc. Cutterhead for a power planer

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Title
See references of WO9007405A1 *

Also Published As

Publication number Publication date
DE3843466A1 (en) 1990-06-28
JP2935560B2 (en) 1999-08-16
EP0449896B1 (en) 1995-05-17
JPH04502432A (en) 1992-05-07
BR8907849A (en) 1991-10-01
DE58909238D1 (en) 1995-06-22
WO1990007405A1 (en) 1990-07-12

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