EP0652816A1 - Tete porte-lames, en particulier tete porte-lames a profiler. - Google Patents

Tete porte-lames, en particulier tete porte-lames a profiler.

Info

Publication number
EP0652816A1
EP0652816A1 EP93915889A EP93915889A EP0652816A1 EP 0652816 A1 EP0652816 A1 EP 0652816A1 EP 93915889 A EP93915889 A EP 93915889A EP 93915889 A EP93915889 A EP 93915889A EP 0652816 A1 EP0652816 A1 EP 0652816A1
Authority
EP
European Patent Office
Prior art keywords
clamping
knife
base body
cutter head
clamping element
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
EP93915889A
Other languages
German (de)
English (en)
Other versions
EP0652816B1 (fr
Inventor
Heinrich Kislinger
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
Original Assignee
Leitz GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6882275&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0652816(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Leitz GmbH and Co KG filed Critical Leitz GmbH and Co KG
Publication of EP0652816A1 publication Critical patent/EP0652816A1/fr
Application granted granted Critical
Publication of EP0652816B1 publication Critical patent/EP0652816B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B27G13/08—Cutter blocks; Other rotary cutting tools in the shape of disc-like members; Wood-milling cutters
    • B27G13/10—Securing the cutters, e.g. by clamping collars
    • 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
    • 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
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2274—Apertured tool
    • Y10T407/2276—Apertured tool with means projecting through aperture to force tool laterally against reaction surface
    • Y10T407/2278—Tilting clamp element and separate means to tilt same
    • 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
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/229—Pivoted jaw

Definitions

  • Cutter head in particular profile cutter head
  • the invention relates to a cutter head, in particular a profile cutter head, with a base body which is provided with at least two receptacles which are arranged uniformly distributed over its circumference, in which cutters each by means of a clamping device which has at least one clamping element and at least one with this and the base body cooperating clamping screw, are interchangeably fixed.
  • the known cutter heads of this type are used for machining, for example for the production of profiles, solid wood and wood-based materials.
  • a disadvantage of these known tools is that they can usually only be used as a single or universal knife head, but cannot be integrated into tool sets. Furthermore, the range in which the diameter and the cutting width can be selected is often not sufficiently large.
  • Another disadvantage is that the use of light metal for the base body is problematic since the clamping forces can lead to notches in the receptacles. Does that happen Securing the clamping elements and the knives by means of a pin-hole connection, then pin deformation can occur, particularly in the case of unloading profiles, which leads to a change in the position of the clamping elements and knives, which can lead to surface defects and an increase in the residual unbalance . Furthermore, these known tools do not provide the minimization of pre-splitting necessary for a clean surface in solid wood processing, since the clamping elements have no profile contour below the cutting edge of the knife.
  • the object of the invention is therefore to create an improved cutter head. This task is solved by a knife head with the features of claim 1.
  • the cutter head according to the invention can be used for the processing and in particular the profiling of solid wood, wood-based materials, plastics and non-ferrous metals, either as a single tool or in such a way that it is integrated in tool sets.
  • the tools can be designed with a bore, with a shank and with a defined profile.
  • the range of dimensions of the cutter head according to the invention ie the range of the selectable diameter and the selectable cutting width, is considerably larger than that of the known cutter heads and can be selected continuously with constant profile accuracy.
  • the material for the knives and the cutting geometry can be optimally selected for the corresponding area of application.
  • the use of light metal for the base body is also possible without any problems, since the material of the base body is only exposed to a compression load due to the clamping means. It is therefore possible to achieve a considerable reduction in weight, good handling, low residual unbalance and thus also protection of the storage.
  • each clamping element has a semi-cylindrical material portion projecting over the pressure surface as the bearing means, which extends in the axial direction of the base body and engages in a groove of the receptacle which is semicircular in cross section.
  • the clamping screws preferably engage in the area between the bearing point of the clamping element and its pressure surface which is used to rest against the knife.
  • the base body is preferably provided with a bore for each tensioning screw, which has a shoulder pointing away from the tensioning element for the abutment of a head of the tensioning screw and is aligned with a threaded bore of the tensioning element for the engagement of the tensioning screw.
  • the clamping screw can be an Allen screw with normal or fine thread, which is tightened by hand using a hexagon wrench or a Torx wrench.
  • Each of the clamping elements is preferably profiled in accordance with the assigned knife and extends up to close to its cutting edge. It acts as a chip breaker.
  • the lateral surface of the bearing body is also advantageously profiled in accordance with the knives, the knives only protruding slightly beyond the base body. The required security against kickback is hereby achieved.
  • the profiled, widely The closed, round body shape minimizes noise emissions.
  • a radially positive connection between each clamping element and the associated knife is provided, in such a way that a material portion of the clamping element engages in a groove extending in the axial direction over the entire axial extent of the knife also extends over the entire axial extent.
  • a cylindrical pin is advantageously provided for positioning the knife in the axial direction.
  • FIG. 2 shows an enlarged section of a plan view of one end face of the exemplary embodiment.
  • a profile cutter head has a base body designated as a whole by 1, which in the exemplary embodiment consists of light metal, but could also consist of steel or plastic and is provided with a central, axially penetrating bore 2 for receiving a shaft. Furthermore, the base body 1 has a plurality of receptacles 3, which are arranged uniformly distributed over the circumference of the base body, in the exemplary embodiment two diametrically ordered, are of the same design and which are open towards its outer surface and extend from one end face to the other. The right in Fig. 2 The flank of the groove-like receptacle 3 forms a flat contact surface 4 for a plate-shaped knife 5, which runs parallel to a radial plane of the base body 1.
  • the extension of the contact surface 4 from the outer lateral surface of the base body 1 into it is greater than the corresponding extension of the knife 5, namely by an amount which is slightly larger than the diameter of a bore 6 which penetrates perpendicularly from the outer surface of the base body to the contact surface 4 and opens radially in the latter within the area which adjoins the Attachment of the knife 5 serving areas.
  • the inner end of the flat contact surface 4 is adjoined by a groove 7 with a semicircular cross section, which is open into the receptacle 3 and extends over the entire axial length of the base body 1.
  • This groove 7 is used for the pivotable mounting of a plate-shaped clamping element 8 for the knife 5.
  • the plate-shaped clamping element 8 has along its edge closest to the central bore 2 a semi-cylindrical material section 8 'which extends over the entire axial extent of the clamping eleme ⁇ tes 8 runs.
  • This semi-cylindrical material portion 8 ' projects over the flat, the knife 5 facing pressure surface 9 of the clamping element 8, namely by an amount which is greater than the thickness of the knife 5, and engages in the groove 7 to form a pivotable mounting of the clamping element 8 a.
  • the pivot axis running parallel to the central bore 2 of the base body is therefore offset beyond the contact surface 4 with respect to the pressure surface 9.
  • the semi-cylindrical material portion 8 ' together with the groove 7, positions the clamping element 8 in the radial direction and forms a positive connection between the clamping element 8 and the base body 1, which is able to absorb all centrifugal forces that occur.
  • the knife 5 is provided near its inner edge on the side facing the clamping element 8 with a groove 11 running parallel to the central bore 2 over the entire axial extent , in which a correspondingly designed rib 12 of the clamping element 8 engages, which also extends over the entire axial direction of extension.
  • a cylinder pin 13 protruding perpendicularly from the contact surface 4 serves to axially position the knife 5 by engaging in a safety groove 14 on the inner edge of the knife 5.
  • the width of the receptacle 3 is only slightly larger than the sum of the thickness of the knife 5 and the clamping element 8. Outside this area, the width of the receptacle 3 is increased many times over to form a rounded step, since this part of the receptacle 3 serves as a flute.
  • the two outer dash-dotted circular lines 15 and 16 are only intended to illustrate that flight circles of different sizes can be realized.
  • the clamping element 8 executes a slight swiveling movement when the clamping screw 10 is tightened, the clamping force can be transmitted to the knife 5 over the entire pressure surface 9 up to its radially outer edge, which results in an excellent clamping of the knife 5. Since the clamping element 8 is profiled according to the knife 5 and extends up to close to the cutting edge of the knife 5 and is provided with a run-off slope 8 ', it acts as a chip breaker.
  • the base body 1 is also profiled in accordance with the knife 5, the knife 5 projecting only a little, for example 1 mm, beyond the outer lateral surface of the base body 1, as shown in FIG. 2. This ensures the required safety against kickback, while the optimal design of the chip space and the design of the clamping element 8 as chip breaker ensure a trouble-free chip flow and thus a reduction in the development of dust.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling Processes (AREA)
  • Surgical Instruments (AREA)
  • Details Of Cutting Devices (AREA)
  • Knives (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Harvester Elements (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
EP93915889A 1992-08-03 1993-07-13 Tete porte-lames, en particulier tete porte-lames a profiler Expired - Lifetime EP0652816B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9210363U 1992-08-03
DE9210363U DE9210363U1 (de) 1992-08-03 1992-08-03 Messerkopf, insbesondere Profilmesserkopf
PCT/EP1993/001827 WO1994003311A1 (fr) 1992-08-03 1993-07-13 Tete porte-lames, en particulier tete porte-lames a profiler

Publications (2)

Publication Number Publication Date
EP0652816A1 true EP0652816A1 (fr) 1995-05-17
EP0652816B1 EP0652816B1 (fr) 1996-04-03

Family

ID=6882275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93915889A Expired - Lifetime EP0652816B1 (fr) 1992-08-03 1993-07-13 Tete porte-lames, en particulier tete porte-lames a profiler

Country Status (9)

Country Link
US (1) US6004079A (fr)
EP (1) EP0652816B1 (fr)
JP (1) JP2837954B2 (fr)
AT (1) ATE136248T1 (fr)
DE (2) DE9210363U1 (fr)
ES (1) ES2086950T3 (fr)
SI (1) SI9300393B (fr)
TW (1) TW248540B (fr)
WO (1) WO1994003311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10155324B2 (en) 2014-10-10 2018-12-18 Leitz Gmbh & Co. Kg Cutter head for cutting materials, and cutter therefor

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19626158C2 (de) * 1996-06-28 1998-04-23 Schrammel Helmut Dipl Ing Fh Fräseinheit
DE19818625A1 (de) 1998-04-25 1999-10-28 Utensilea S A S Messerhaltevorrichtung in Messerköpfen für die Holzbearbeitung
IT244590Y1 (it) * 1998-12-23 2002-03-12 Rekord Srl Dispositivo di bloccaggio di un inserto tagliente su un corpo fresa.
DE10113633B4 (de) * 2001-03-21 2006-04-13 Jakob Lach Gmbh & Co. Kg Profil-Drehwerkzeug
US7044694B2 (en) * 2003-09-08 2006-05-16 Black & Decker Inc. Router bit with position stop
EP1574308A3 (fr) * 2004-03-09 2005-11-16 STARK S.p.A. Outil de fraisage
US7048476B2 (en) * 2004-05-27 2006-05-23 Misenheimer Saw & Tool, Inc. Cutter head blade clamp
EP1719595A1 (fr) * 2005-05-03 2006-11-08 Utensilea S.A.S., di Santarossa, de Marco & C. Tête de coupe pour l'usinage de bois avec système de blocage du couteau pivotant
DE102007022242A1 (de) 2007-05-09 2008-11-20 Leitz Gmbh & Co. Kg Schneidwerkzeug mit einem Tragkörper
CH709488A1 (de) * 2014-04-14 2015-10-15 Oertli Werkzeuge Ag Werkzeugkopf und Verfahren zum Einsetzen und Spannen einer Schneidplatte, sowie Schneidplatte.
CH713020A1 (de) * 2016-10-10 2018-04-13 Oertli Werkzeuge Ag Messerkopf und Messerkopfsystem, insbesondere für eine Holzbearbeitungsmaschine.

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Publication number Priority date Publication date Assignee Title
DE637215C (de) * 1934-11-18 1936-10-23 Emil Nehrenheim Sicherheitsmesserwelle
DE1195934B (de) * 1957-10-30 1965-07-01 Paul Kirsten Dr Ing Messerwelle fuer Holzbearbeitungsmaschinen, insbesondere Zerspanungsmaschinen mit keil-artigen Druckleisten
US3237275A (en) * 1963-12-12 1966-03-01 Burton E Middleton Cutting tools
DE1964556U (de) * 1967-04-28 1967-07-20 Rudolf Schoenleb Umlaufendes schneidwerkzeug mit mindestens einem als wendeplatte ausgebildeten messer.
US3907016A (en) * 1972-05-02 1975-09-23 Nicholson Mfg Co Peripheral chipper cutting bit holder
IL48613A0 (en) * 1975-12-08 1976-02-29 Iscar Ltd Cutting tool providing mounting for interchangeable cutting inserts
GB1500556A (en) * 1976-10-12 1978-02-08 Wickman Wimet Ltd Milling cutters
FR2443318A1 (fr) * 1978-12-08 1980-07-04 Caumette Georges Outil a rainer le bois a plaquettes reversibles jetables
DE8006414U1 (de) * 1980-03-08 1980-06-04 Eugen Lutz Gmbh U. Co Maschinenfabrik, 7130 Muehlacker Messerhalterung fuer messerwellen oder messerkoepfe
DE3246138A1 (de) * 1982-12-14 1984-06-14 Robert Bosch Gmbh, 7000 Stuttgart Messerwalze, insbesondere fuer eine handhobelmaschine
DE3405614A1 (de) * 1984-02-16 1985-08-22 Eugen Lutz GmbH u. Co Maschinenfabrik, 7130 Mühlacker Hobelmesser, insbesondere profilmesser
EP0156934A1 (fr) * 1984-04-02 1985-10-09 Fritz Vogelmann Outil pour l'usinage de pièces non-métalliques
DE8420094U1 (de) * 1984-07-05 1984-10-25 Karl M. Reich Maschinenfabrik GmbH, 7440 Nürtingen Messerwelle fuer hobelmaschinen
IT1225109B (it) * 1988-06-07 1990-11-02 Vebi Di Biason G & C S N C Dispositivo per il fissaggio amovibile di coltelli in metallo duro su teste rotanti per la lavorazione di legno o materiali simili.
CH679775A5 (fr) * 1989-11-07 1992-04-15 Rieter Ag Maschf

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9403311A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10155324B2 (en) 2014-10-10 2018-12-18 Leitz Gmbh & Co. Kg Cutter head for cutting materials, and cutter therefor

Also Published As

Publication number Publication date
US6004079A (en) 1999-12-21
ES2086950T3 (es) 1996-07-01
EP0652816B1 (fr) 1996-04-03
WO1994003311A1 (fr) 1994-02-17
DE59302125D1 (de) 1996-05-09
JP2837954B2 (ja) 1998-12-16
DE9210363U1 (de) 1993-01-21
ATE136248T1 (de) 1996-04-15
JPH07508691A (ja) 1995-09-28
SI9300393B (en) 2001-12-31
SI9300393A (en) 1994-03-31
TW248540B (fr) 1995-06-01

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