WO2007031252A1 - Plaquette de coupe pour tete de fraisage conique - Google Patents

Plaquette de coupe pour tete de fraisage conique Download PDF

Info

Publication number
WO2007031252A1
WO2007031252A1 PCT/EP2006/008827 EP2006008827W WO2007031252A1 WO 2007031252 A1 WO2007031252 A1 WO 2007031252A1 EP 2006008827 W EP2006008827 W EP 2006008827W WO 2007031252 A1 WO2007031252 A1 WO 2007031252A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
cutting edge
milling
milling head
cutting insert
Prior art date
Application number
PCT/EP2006/008827
Other languages
German (de)
English (en)
Inventor
Stephan Rieth
Original Assignee
Stephan Rieth
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 Stephan Rieth filed Critical Stephan Rieth
Publication of WO2007031252A1 publication Critical patent/WO2007031252A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B23C3/122—Trimming or finishing edges, e.g. deburring welded corners of pipes or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/202—Plate-like cutting inserts with special form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/20—Top or side views of the cutting edge
    • B23C2200/205—Discontinuous cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/16—Chamferring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2265/00—Details of general geometric configurations
    • B23C2265/08—Conical

Definitions

  • the invention relates to a cutting insert for a conical milling head for milling bevels, in particular for orbital milling of chamfers at pipe ends, with a, in particular by turning the cutting plate interchangeable ("insert"), cutting edge for milling the bevel with a wedge angle between the free surface and clamping surface 75 °.
  • Such inserts and milling heads are e.g. from WO 2004/078395 AI and known by use.
  • the invention has for its object to open further processing options when milling chamfers.
  • this purpose is fulfilled by the fact that adjoining the one end of the cutting edge an angled or bent further cutting edge, which is generated by a, in total with the open space forming an obtuse angle, oblique side surface.
  • the further cutting edge has the same rake surface as the former; In other words, it has a continuation of the rake face of the former cutting edge as rake face. Due to the angle formed by the inclined side surface with the free surface, the result is a somewhat duller wedge angle at the further cutting edge than the mentioned wedge angle at the former cutting edge.
  • the additional cutting edge makes it possible to simultaneously mold with the bevel a subsequent paragraph to this. With an angled, straight further cutting edge can be a directly adjoining the slope flat or (at a pipe end) unilaterally curved paragraph train. With a bent further cutting edge, a transition is formed, if necessary, the step is completely curved.
  • the further cutting edge will be angled or bent at an angle from the former cutting edge, in which it lies on the milling head provided for it substantially parallel to the axis thereof.
  • the surface of the shoulder In the case of an axis of the milling head which is aligned parallel to a plane plate to be gripped or parallel to the axis of a tube to be filled, the surface of the shoulder then also becomes parallel to the surface of the plate or of the tube.
  • the second cutting edge is shorter than the former. This is probably the most common case, although other proportions are possible.
  • the apex line of said obtuse angle between the flank face and the side face with the former cutting edge forms a slightly smaller angle than 90 °.
  • the necessary clearance angle behind the other cutting edge does not have to be created or not only by a tilted arrangement of the cutting plate.
  • the further cutting edge will adjoin the outer end of the former cutting edge in the arrangement on the milling head.
  • the cutting plate is one at its said oblique side surface, i. also assigned to the further cutting edge, opposite side to be arranged, adapted support plate.
  • the support of the force exerted by the further cutting edge on the material by means of this support plate is simpler than the formation of a corresponding seat for the cutting plate on the milling head, i. a seat, which in addition to its the force of the former cutting edge receiving support should also have a force of the further cutting edge receiving second support.
  • the cutting insert according to the invention is provided with cutting teeth having saw teeth which are intended for it in such a way that they separate the workpiece following the cutting of the further cutting edges of the cutting plates provided in the plurality on the milling head.
  • This allows a particularly accurate positioning of the heel produced with the further cutting edge at the end edge of the workpiece.
  • a separate operation for the separation is saved.
  • an end edge which lies in a plane which is exactly perpendicular to the tube axis. In this respect, when cutting by means of sawing easily errors with the result that the pipe sections with a slight buckling abut each other.
  • FIG. 1 shows a milling head with inserts according to the invention in front view
  • FIG. 2 shows the milling head in an isometric view
  • FIG. 3 shows the circled in Fig. 2 section on a larger scale
  • Fig. 4 shows the milling head from the back in an isometric view
  • Fig. 5 shows the milling head in side view, but occupied with another
  • Fig. 6 shows the occupied with inserts according to FIG. 1 to 4 cutting head in the processing of a pipe end in an isometric view
  • Fig. 7 shows the circled in Fig. 6 section on a larger scale.
  • the cutting plate 1 appearing in FIGS. 1 to 3 has the initial shape of a cuboid with a square base.
  • the two broad sides are determined during use as base 2 and support surface 3 and vice versa.
  • two possible clamping surfaces 5 are formed in each case by a symmetrical to the median plane of the cutting insert 1 4 continuous cross-section consistent with a rounded transition 6 between them.
  • One of the broad side to the other continuous central bore has on both sides of a central portion of two seats 8 for a screw head 9.
  • the cutting plate 1 is thus a turning plate.
  • the insert is known from WO 2004/078395 Al. According to the present invention, the following further design is provided:
  • two outwardly facing oblique side surfaces 10 are formed, again with a transition 10 in the middle.
  • the side surfaces 10 have with the broad sides, ie the support surface 2 and the free surface 3, in each case a common crease line 12.
  • the angle alpha is slightly less than 90 °
  • the angle beta likewise drawn in becomes correspondingly larger and the edge 14 resulting therefrom becomes wholly unsuitable as a cutting edge, ie even under other circumstances.
  • the angle between the cutting edges 7 and the other cutting edges 13 is 120 ° in the present example.
  • the drawings show a milling head 15 with six seats 16 for an insert 1.
  • the seats 16 each include a seat surface 17 for the support surface 2 of the insert 1, in the seat a threaded hole for a screw
  • Each cutting plate 1 is supported on the milling head 15 by a matched support plate 19.
  • the adaptation consists of a cross-sectionally dovetail-shaped design of the contact surface 20 that is complementary to the side surfaces 10 of the cutting insert 1.
  • the cutting elements 22 each have three saw teeth 23 which can be selectively brought into a protruding on the periphery of the milling head 15 position.
  • the cutting elements 22 have on the whole the shape of an equilateral triangle and are fixed in the middle with a screw 24 to the milling head 15.
  • the axis of the milling head 15 is always parallel to the tube axis in the circulation around the pipe circumference.
  • the further cutting edges, designated here by 30, are not angled away from the cutting edges 7, but are bent.
  • the generating oblique side surfaces 31 are correspondingly curved. On the whole, ie apart from the curvature, they form with the free surface 3 as well as an obtuse angle as the oblique side surfaces 10th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

L'invention concerne une plaquette de coupe (1) pour tête de fraisage conique (15) destinée au fraisage de chanfreins, en particulier pour le fraisage orbital de chanfreins aux extrémités de tube (25), comprenant une plaquette interchangeable par pivotement de la plaquette de coupe (1) (« plaquette réversible »), une arête de coupe (7) pour le fraisage du chanfrein (26), ayant un angle de taillant entre la face de dépouille (3) et la face de coupe (5) < 75°, caractérisée en ce qu'à l'une des extrémités de l'arête de coupe (7) est raccordée une autre arête de coupe repliée ou recourbée (13) qui est générée par une face latérale inclinée (10) formant, dans l'ensemble, avec la face de dépouille (3), un angle obtus. L'autre arête de coupe permet de former en même temps avec le chanfrein, un épaulement raccordé à celui-ci. De préférence, la ligne des sommets (12) de l'angle obtus précité entre la face de dépouille (3) et la face latérale (10 ; 31) forme avec le premier bord de coupe (7), un angle (alpha) légèrement inférieur à 90°. La plaquette de coupe (1) peut être associée à une plaque d'appui (19) adaptée et agencée à son côté opposé à la face latérale inclinée précitée (10 ; 31).
PCT/EP2006/008827 2005-09-12 2006-09-11 Plaquette de coupe pour tete de fraisage conique WO2007031252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005043530.0 2005-09-12
DE102005043530A DE102005043530A1 (de) 2005-09-12 2005-09-12 Schneidplatte für einen konischen Fräskopf

Publications (1)

Publication Number Publication Date
WO2007031252A1 true WO2007031252A1 (fr) 2007-03-22

Family

ID=37497842

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/008827 WO2007031252A1 (fr) 2005-09-12 2006-09-11 Plaquette de coupe pour tete de fraisage conique

Country Status (2)

Country Link
DE (1) DE102005043530A1 (fr)
WO (1) WO2007031252A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007252A1 (fr) * 2011-07-08 2013-01-17 Stephan Rieth Procédé de fraisage et outil de fraisage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105307806B (zh) 2013-08-07 2018-08-07 里奇工具公司 便携式斜切工具
CN113500136B (zh) * 2021-07-15 2023-07-18 江门市中刀精密科技有限公司 一种加工骨水平rc种植体的精密冲头

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443563A1 (de) * 1993-12-07 1995-06-08 Schrammel Helmut Dipl Ing Fh Fräsmesser sowie Tragkörper zur Halterung des Fräsmessers
WO1998007543A1 (fr) * 1996-08-21 1998-02-26 Ingersoll Cutting Tool Company Fraise rapportee possedant une surface de depouille a largeur variable
WO2004078395A1 (fr) * 2003-03-06 2004-09-16 Rieth, Stephan Plaquette reversible servant a chanfreiner au moyen d'une tete de fraisage conique
EP1468770A1 (fr) * 2003-04-17 2004-10-20 Walter Ag Plaquette de coupe, en particulier pour un outil de fraisage
EP1486279A1 (fr) * 2003-06-11 2004-12-15 Sandvik Aktiebolag Plaquette de coupe pour tourner et fraiser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443563A1 (de) * 1993-12-07 1995-06-08 Schrammel Helmut Dipl Ing Fh Fräsmesser sowie Tragkörper zur Halterung des Fräsmessers
WO1998007543A1 (fr) * 1996-08-21 1998-02-26 Ingersoll Cutting Tool Company Fraise rapportee possedant une surface de depouille a largeur variable
WO2004078395A1 (fr) * 2003-03-06 2004-09-16 Rieth, Stephan Plaquette reversible servant a chanfreiner au moyen d'une tete de fraisage conique
EP1468770A1 (fr) * 2003-04-17 2004-10-20 Walter Ag Plaquette de coupe, en particulier pour un outil de fraisage
EP1486279A1 (fr) * 2003-06-11 2004-12-15 Sandvik Aktiebolag Plaquette de coupe pour tourner et fraiser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013007252A1 (fr) * 2011-07-08 2013-01-17 Stephan Rieth Procédé de fraisage et outil de fraisage

Also Published As

Publication number Publication date
DE102005043530A1 (de) 2007-03-15

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