EP1528965A1 - Outil d'usinage par enlevement de copeaux - Google Patents

Outil d'usinage par enlevement de copeaux

Info

Publication number
EP1528965A1
EP1528965A1 EP03735432A EP03735432A EP1528965A1 EP 1528965 A1 EP1528965 A1 EP 1528965A1 EP 03735432 A EP03735432 A EP 03735432A EP 03735432 A EP03735432 A EP 03735432A EP 1528965 A1 EP1528965 A1 EP 1528965A1
Authority
EP
European Patent Office
Prior art keywords
receptacle
machining
holder
tool according
fixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03735432A
Other languages
German (de)
English (en)
Inventor
Hans Schäfer
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.)
Hartmetall Werkzeugfabrik Paul Horn GmbH
Original Assignee
Hartmetall Werkzeugfabrik Paul Horn 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 Hartmetall Werkzeugfabrik Paul Horn GmbH filed Critical Hartmetall Werkzeugfabrik Paul Horn GmbH
Publication of EP1528965A1 publication Critical patent/EP1528965A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/02—Connections between the shanks and detachable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/03—Cutting heads comprised of different material than the shank irrespective of whether the head is detachable from the shank
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/89—Tool or Tool with support
    • Y10T408/909—Having peripherally spaced cutting edges
    • Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30952—Milling with cutter holder

Definitions

  • the invention relates to a tool for machining, in particular a milling tool, with a holder and a receptacle arranged therein for a cutting body, which has a machining part and a fixing part.
  • the solution in question allows the cutting body to rest on the holder without torque during machining with the cutting edge. In this way, harmful vibrations that could affect processing are largely excluded.
  • the tool known in this regard is regularly used for processing internal punctures.
  • the fixing process by means of the fixing screw is disadvantageous, since this has to be loosened and tightened again each time for an exchange process of the cutting body. Accordingly, the exchange process in question takes some time for the setting process to the extent outlined.
  • DE 195 22 452 C1 discloses a milling tool, in particular a circular milling cutter, with a shaft part that can be rotated along an axis of rotation and a head part on which at least one machining cutting edge is arranged on the circumferential side, the shaft part and head part being connected to one another in a rotationally fixed manner via engagement means of one part are, which engage precisely in associated recesses of the other part under system along driver surfaces.
  • the respective engagement means has a centering surface along its outer circumference, which merges into the driving surface in the direction of the axis of rotation of the tool, which, together with the centering surface, is encompassed by the respectively assigned recess and is delimited on the circumferential side by the shaft or head part.
  • the known solution therefore relates to a versatile milling tool which has a very space-saving rotation lock, the respective cutting edge being arranged interchangeably and with the known one
  • Solutions can be carried out without failure in a specifiable diameter range.
  • the head part is provided with three bores with an internal thread, the respective bore axis being slightly offset compared to the corresponding bores with an internal thread in the shaft part, so that when fixing the head part with the respective cutting edge the offset mentioned is compensated for by corresponding engagement screws and the above-mentioned parts are fixed to one another without play for a machining operation via the respective centering surface of the engagement means.
  • the solution in question takes a relatively long time to replace the head part with the cutting body, and the solution in question is also complex in terms of technical implementation.
  • a tool for machining is known from PCT / WO 98/50187, in which a cutting body with a cutting edge made of hard metal material has a central centering recess into which a fastening rod can be inserted, with this in the fixed state via a head part arranged at the end with the cutting body Defines the center recess via conically arranged centering surfaces in corresponding recesses at the free end of the assignable holder in a rotationally fixed and axially secured manner.
  • the fixing rod in question is pressed with its other, opposite end against a compression spring arranged in the holder for a fixing process of the cutting body, and as soon as the fixing position for the cutting body is reached, a grub screw, which extends through the holder at an oblique angle, passes through Fixing rod is fixed in the holder by pressing the grub screw against an outer circumferential groove on the fixing rod.
  • a grub screw which extends through the holder at an oblique angle
  • the invention has for its object to further improve the known tool in such a way that an exchange process of the cutting body can proceed quickly and unerringly and that the advantages in the prior art are retained, such as the safe power line Machining forces during machining into the holder in order to ensure high machining accuracy.
  • a related problem is solved by a tool with the features of claim 1 in its entirety.
  • the fixing part has a foot part which can be inserted into the receptacle in a receiving position and which, rotated into a latching position, engages under at least one holding projection in the receptacle in order to be usable for machining with the cutting body a fixing process of the cutting body is possible without further fixing means, such as a fixing screw or the like, and by simply inserting the cutting body into the receptacle and twisting it into its latching position, a fixing process is securely initiated and in reverse order the low actuation forces can be used occupied locking position can also be released again to remove the cutting body from the receptacle.
  • the machining forces that occur during machining can also be safely diverted into the holder via the cutting body.
  • the tool described is particularly suitable in the design of a milling tool in which the holder is driven by a corresponding machine, such as a machine tool or drilling machine; However, machining operations are also conceivable in which the tool is stationary and the workpiece is rotating relative to the tool in the sense of turning.
  • the receptacle on the end face has a receptacle channel which runs transversely to the longitudinal axis of the holder and through which at least one latching web of the foot part can pass, the receptacle channel being delimited on the edge side by the respective holding projection which is determined by the respective latching stungssteg is grasped in the locking position.
  • the receiving channel opens at the end into a receiving cone which widens towards the surroundings and which can be brought into contact with a correspondingly designed centering cone of the fixing part in the locking position of the cutting body. If the foot part of the fixing part is rotated into its latching position, the foot part pulls the centering cone of the fixing part of the cutting body onto the receiving cone into which the receiving channel opens, and in this way the secure contact with the holder on the holder in the longitudinal axis is reached on the outer circumference.
  • the machining part is connected to the centering cone with at least one cutting edge, preferably a three-cutting edge plate, and that a connecting part is arranged between the centering cone and the cutting edge, which is in the longitudinal axis of the holder in the locking position of the cutting body is pulled against the outer peripheral edge of the receiving cone.
  • a connecting part is arranged between the centering cone and the cutting edge, which is in the longitudinal axis of the holder in the locking position of the cutting body is pulled against the outer peripheral edge of the receiving cone.
  • the tool according to the invention there are two diametrically opposed locking webs on the foot part, these being arranged at the free end of the fixing part and connected to the centering cone which widens towards the environment via a fixing shaft.
  • the centering cone is pulled against the contact cone of the holder via the locking webs on the foot section.
  • the respective latching web is provided on its side adjacent to the centering cone with a bevel which slopes away in the direction of the free end of the fixing part.
  • the bevel in this way supports the described pulling-in process into the holding cone of the holder.
  • At least part of a thread is provided in the interior of the receptacle associated with each latching web, the pitch of which starts at the holding projection and is oriented in the direction of the closed inner wall of the receptacle.
  • one of the two latching webs is designed to be radially shorter than the other, the slot-shaped receiving channel accordingly having a longer and a shorter receiving flank, it is ensured that the tool can only be inserted into the receiving channel for a latching operation in one receiving position is. This is particularly important if the cutting body is provided with only one cutting edge and the cutting body in question must then assume a defined fixing position in relation to the holder for mass compensation.
  • the pulling-in process described is further supported by the fact that the axial length of the fixing shank of the cutting body is at least greater than the length of the diametrically opposite holding projections on the holder measured in the longitudinal axis of the holder.
  • FIG. 3 shows the rear of the cutting body in a perspective view
  • 4 shows a perspective front view of the foot part of the cutting body as shown in FIG. 3;
  • FIG. 5 shows a 10-fold enlargement of the front plan view of the front of the holder as shown in FIG. 2;
  • FIG. 6 shows a section along the line AA according to FIG.
  • the tool shown in the figures is used for machining and is, in particular, a milling tool with which, depending on the machining and cutting geometry, internal recesses or the like can also be produced in metallic workpieces.
  • the tool is provided with an elongated holder 10 for fixing the tool to a processing machine, for example in the form of a machine tool or the like.
  • the holder has a receptacle 12 at its one free end for the receptacle of a cutting body 14.
  • the cutting body 14 has a machining part 16 and a fixing part 18 (cf. FIG. 3).
  • the fixing part 18 has a foot part 20 which can be inserted into the receptacle 12 in a receptacle position (see FIG. 5). If the foot part 20 is rotated into a latching position 24, namely clockwise, the foot part 20 engages under two diametrically opposite holding projections 26 in the receptacle 12 in order to be usable for machining in this way.
  • the receptacle 12 has a receptacle channel 30 in the manner of a transverse slot that extends transversely to the longitudinal axis 28 of the holder 10.
  • This receiving channel 30 is of minimum least one latching web 32 of the foot part 20 can be reached through, in which.
  • Embodiment presented two diametrically opposed locking webs 32 are arranged on the foot part 20 of the cutting body 14.
  • the receiving channel 30 is delimited on the edge by the respective holding projection 26, which can be gripped under by the respectively assigned latching web 32 in the latched position 24 of the cutting body 14.
  • the receiving channel 30 opens out into the open via a receiving cone 34, which expands towards the surroundings and can be brought into contact with a correspondingly designed centering cone 36 of the fixing part 18 in the latched position 24 of the cutting body 14.
  • the machining part 16 adjoins the centering cone 36 with at least one machining edge 38, preferably in the form of a conventional three-edge plate 40.
  • an at least partially cylindrical connecting part 42 is arranged between the centering cone 36 and the respective cutting edge 38, which can have a handle 44 for the attack of a conventional fixing tool, for example in the form of a hexagon wrench or the like.
  • the handles 44 are formed Flattened compared to the other cylindrical parts of the connecting part 42.
  • the cutting body 14 is exchangeable by hand in the holder 10 by a manual attack at the location of the three-cutting edge plate 40, a fixing and replacement process in this regard being described in more detail below.
  • the connecting part 42 which extends in the longitudinal axis 28 of the holder 10, is against the outer circumference during the fixing process of the cutting body 14 and therefore in the direction of the locking position 24 of the cutting body 14. trailing edge 46 of the receiving cone 34 pulled. From the outer circumferential edge 46 of the holder 10 towards the outside it also widens conically until it merges into the cylindrical shaft part of the holder 10. Since only the contact is made via the receiving cone 34 and the associated centering cone 36, there is a slight, albeit small distance between the connecting part 42 and the outer peripheral edge 46 of the holder 10 in the direction of the longitudinal axis 28 of the holder.
  • the two diametrically opposed locking webs 32 are arranged at the free end of the fixing part 18 and are connected via a fixing shaft 48 to the centering cone 36, which widens towards the surroundings, at a predeterminable axial distance ,
  • the respective latching web 32 is provided on its side adjacent to the centering cone 36 with a bevel 50 which slopes outwards towards the free end of the fixing part 18 at a flat angle.
  • the bevels 50 can begin at different spacing dimensions from the centering cone 36 on the fixing shank 48 in order to exert a tightening torque on the respective cone 34, 36 when the gripping projections 26 are later gripped.
  • At least one thread 54 is assigned to each locking web 32 in the interior 52 of the receptacle 12, the pitch of which, starting at the holding projection 26, is oriented in the direction of the inner wall 56 of the receptacle 12, which is at least partially closed on the end face (see FIG. 6).
  • the cutting body 14 with its two locking webs 32 is inserted into the receptacle 12 such that the two locking webs 32 pass through the two flanks 58 of the receiving channel 30 (see FIG. 5). Then the Centering cone 36 of the cutting body 14 is pressed against the receiving cone 34 of the holder 10 and when the contact is reached, the cutting body 14 is rotated relative to the holder 10 clockwise by a predeterminable pivoting path.
  • the two latching webs 32 come into engagement with the thread 54 assigned to them in each case and are fixed in this way by reaching under the holding projections 26 in a latching position, which, arranged transversely to the receiving channel 30, limit the latter to the outside.
  • the cutting body 14 then bears against the holder 10 via its centering cone 36 and via the two locking webs 32, in the region of their bevels 50.
  • the fixing process described is to be carried out in reverse order and after removal of the cutting body 14 from the receptacle 12 of the holder 10, the latter can be exchanged for a new cutting body 14.
  • one of the two locking webs 32 is designed to be radially shorter than the other, the slot-shaped receiving channel 30 then having a correspondingly longer and a shorter receiving flank 58. In this way, it is then possible to carry out a fixing and releasing process in only one position, which can play a role if, for example, the processing plate is provided with only one cutting edge (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping On Spindles (AREA)

Abstract

L'invention concerne un outil d'usinage par enlèvement de copeaux, notamment un outil à fraiser, comportant un support (10) dans lequel se trouve un logement (12) pour un élément de coupe (14) doté d'une partie usinage (16) et d'une partie fixation (18). La partie fixation (18) comprend un pied (20) qui est placé dans le logement (12) en position de réception (22) et qui, lorsqu'il est tourné en position d'enclenchement (26), s'engrène sous au moins un épaulement de retenue (26) du logement (12), pouvant ainsi être utilisé avec l'élément de coupe (14) pour l'usinage par enlèvement de copeaux. Il est donc possible de fixer cet élément de coupe sans moyens de retenue supplémentaire, tels qu'une vis de fixation ou autre pièce analogue, sa simple insertion dans le logement et sa mise en position d'enclenchement par rotation constituant un procédé de fixation fiable. Et inversement, la libération dudit élément de coupe de sa position d'enclenchement et son extraction hors du logement nécessitant peu de force.
EP03735432A 2002-08-17 2003-05-22 Outil d'usinage par enlevement de copeaux Withdrawn EP1528965A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10237772 2002-08-17
DE10237772A DE10237772A1 (de) 2002-08-17 2002-08-17 Werkzeug zur spanenden Bearbeitung
PCT/EP2003/005344 WO2004018134A1 (fr) 2002-08-17 2003-05-22 Outil d'usinage par enlèvement de copeaux

Publications (1)

Publication Number Publication Date
EP1528965A1 true EP1528965A1 (fr) 2005-05-11

Family

ID=31501799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03735432A Withdrawn EP1528965A1 (fr) 2002-08-17 2003-05-22 Outil d'usinage par enlevement de copeaux

Country Status (5)

Country Link
US (1) US20060127194A1 (fr)
EP (1) EP1528965A1 (fr)
JP (1) JP2005535466A (fr)
DE (1) DE10237772A1 (fr)
WO (1) WO2004018134A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007038362A (ja) * 2005-08-04 2007-02-15 Osg Corp 切削工具
IL181295A (en) * 2007-02-12 2011-07-31 Iscar Ltd A cutting tool that includes a self-locking release bar head
DE102009034202B3 (de) 2009-07-16 2010-09-23 Hartmetall-Werkzeugfabrik Paul Horn Gmbh Zweiteiliges Werkzeug für spanende Bearbeitung mit Schraubkupplung
WO2011021275A1 (fr) * 2009-08-18 2011-02-24 オーエスジー株式会社 Outil rotatif jetable
DE102009042665A1 (de) * 2009-09-23 2011-05-19 Esa Eppinger Gmbh Schnittstelle zwischen einem Aufnahmekörper und einem insbesondere als Werkzeug- oder Werkstückhalter ausgebildeten Einsatz
DE102009060678B4 (de) * 2009-12-28 2015-06-25 Wto Werkzeug-Einrichtungen Gmbh Werkzeugträger mit einer Spannzangenaufnahme und Werkzeugeinsatz zur Verwendung in einem Werkzeugträger
IL203097A (en) 2009-12-31 2013-03-24 Kennametal Inc Quick link for milling with interchangeable head
SE534648C2 (sv) * 2010-03-26 2011-11-08 Sandvik Intellectual Property Roterbart verktyg för spånavskiljande bearbetning samt löstopp och grundkropp härför
IL210893A (en) * 2011-01-26 2015-01-29 Iscar Ltd Cutting Tools
CN102601431B (zh) * 2012-03-13 2014-07-16 上海瑞纽机械装备制造有限公司 刀盘辅助支撑装置
US9409241B2 (en) * 2012-12-13 2016-08-09 Iscar, Ltd. Cutting tool and replaceable cutting head having spiral driven surfaces therefor
EP3330025B1 (fr) * 2016-11-30 2023-08-16 Seco Tools Ab Ensemble de coupe ayant plusieurs outils de fraisage
CN110842268A (zh) * 2019-11-07 2020-02-28 云南太标数控机床有限公司 一种提高机床硬轨表面加工粗糙度的铣刀及方法
DE102019220092A1 (de) * 2019-12-18 2021-06-24 MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG Werkzeugteil zur Verbindung mit einem Werkzeuggegenstück, Werkzeuggegenstück zur Verbindung mit einem Werkzeugteil, und Werkzeug

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US1766136A (en) * 1924-11-28 1930-06-24 Continental Tool Works Cutting tool
US1975877A (en) * 1933-04-24 1934-10-09 Eclipse Counterbore Company Drive coupling
US2379984A (en) * 1943-07-16 1945-07-10 Wright Aeronautical Corp Simplified drive for cutting tools
IT1176371B (it) * 1984-06-29 1987-08-18 Innocenti Santeustacchio Spa Giunto per il collegamento testa a testa di tubi metallici,in particolare per palificazioni marine
US4971491A (en) * 1985-10-15 1990-11-20 Cook Harold D Tool holder system and method of use
SE457935B (sv) * 1987-07-08 1989-02-13 Seco Tools Ab Verktyg foer skaerande bearbetning samt skaerdel foer verktyget
IL106697A (en) * 1993-08-15 1996-10-16 Iscar Ltd A cutting board with an integral lining
DE19522452C1 (de) * 1995-06-21 1996-05-23 Horn P Hartmetall Werkzeugfab Fräswerkzeug
FR2741557B1 (fr) * 1995-11-28 1998-01-16 Service De Machines Et Outilla Outil de coupe rotatif a tete interchangeable utilisable pour des vitesses de coupe elevees
IL120763A (en) * 1997-05-02 2001-04-30 Iscar Ltd Rotary tool and method of using it
IL125766A (en) * 1998-08-13 2002-12-01 Iscar Ltd The barrel of a tool and a rotating cutting head for placing on it in the form of a self-lining

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Title
See references of WO2004018134A1 *

Also Published As

Publication number Publication date
WO2004018134A1 (fr) 2004-03-04
DE10237772A1 (de) 2004-03-11
US20060127194A1 (en) 2006-06-15
JP2005535466A (ja) 2005-11-24

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