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WO1998009760A1 - Outil de fraisage pour fraiser les chanfreins - Google Patents

Outil de fraisage pour fraiser les chanfreins Download PDF

Info

Publication number
WO1998009760A1
WO1998009760A1 PCT/EP1997/004724 EP9704724W WO9809760A1 WO 1998009760 A1 WO1998009760 A1 WO 1998009760A1 EP 9704724 W EP9704724 W EP 9704724W WO 9809760 A1 WO9809760 A1 WO 9809760A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
plate
milling tool
receptacle
plate holder
Prior art date
Application number
PCT/EP1997/004724
Other languages
German (de)
English (en)
Inventor
Hermann Oehler
Original Assignee
Armin Ackermann Mechanische Fertigung
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 Armin Ackermann Mechanische Fertigung filed Critical Armin Ackermann Mechanische Fertigung
Priority to EP97944812A priority Critical patent/EP0925134A1/fr
Publication of WO1998009760A1 publication Critical patent/WO1998009760A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/007—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor for internal turning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1681—Adjustable position of the plate-like cutting inserts
    • 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
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
    • B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts 
    • 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
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
    • 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
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts
    • B23C5/24—Securing arrangements for bits or teeth or cutting inserts adjustable
    • B23C5/2489—Securing arrangements for bits or teeth or cutting inserts adjustable where the adjustment is made by changing the inclination of the inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/088—Indication scales

Definitions

  • the invention relates to a milling tool, in particular for attaching bevels with different bevel angles with a base body which carries a cutting plate fastened to a plate holder in a receptacle, the cutting plate having at least two cutting edges which meet in pairs at a crossing point, and wherein the Cutting plate for generating different bevel angles is adjustable.
  • Such a milling tool is known from DE 44 1 3 663.
  • an indexable insert with three cutting edges is used.
  • the cutting insert is held clamped in a insert holder.
  • the plate holder has a pocket-shaped receptacle, which is also one
  • CONFIRMATION COPY has triangular geometry.
  • the cutting insert is thus supported in the receptacle in the region of two of its cutting edges.
  • the third cutting edge serves as the main cutting edge and is held at a distance from the base body of the milling tool. With this cutting edge, chamfers on workpieces can be milled. To create different chamfer geometries and angles, the insert holder can be rotated together with the insert.
  • This special milling tool has two circumferential cutting rings that carry cutting inserts.
  • the cutting rings are offset from one another in the axial direction of the base body. The distance is dimensioned so that the cutting rings of the rotating cutting tool simultaneously chamfer two edges of a workpiece.
  • a high expenditure of parts is required.
  • it is only designed for a special application, so that it cannot be used universally.
  • This object of the invention is achieved in that the plate holder keeps the intersection of the cutting edges outside the receptacle, the the first cutting edge as the main cutting edge for generating a first bevel angle and the second cutting edge as another main cutting edge for producing a second bevel angle are released from the receptacle.
  • two cutting edges that can be used as main cutting edges are realized.
  • the two cutting edges can alternately be brought into contact with the workpiece without having to be converted. Because the two cutting edges are at an angle to one another, forward and backward chamfers can also be milled, so that mutually parallel edges on the front and back of the workpiece or, for example, through holes can be chamfered with a milling tool.
  • an insert with three or four cutting edges is attached to the insert holder as the insert.
  • These inserts can be obtained as a standardized component.
  • the insert holder is specifically designed for the individual inserts in such a way that the two cutting edges, each serving as the main cutting edge, are held at a distance from the base body.
  • an embodiment of the invention is characterized in that the cutting plate is placed on a flat support surface of the receptacle and that the insert holder supports the cutting plate against the main body against the main direction of force occurring during the milling process.
  • the insert rest on a flat support surface of the insert holder, and for the flat support surface in the region of the two main cutting edges to be adapted to the geometry of the insert. With this measure ensures that the entire underside of the cutting plate is always supported over the entire surface. This is particularly advantageous when using thin inserts with an increased risk of breakage.
  • the cutting plate is provided with a screw receptacle, via which it can be clamped to the base body by means of a fastening element, and that the cutting plate can be rotated via an adjusting device in order to achieve an angular variation
  • the central axis of the screw receptacle forming the axis of rotation for the cutting insert.
  • a preferred embodiment of the invention provides that the adjustment device is introduced as an arcuate groove in the base body, in which a sliding block of the plate holder is clamped, and that the groove is closed at its one end so that a stop for the Sliding block results.
  • the milling tool is designed in the area of the cutting plate. The stop can, for example, be designed such that the groove is not completely worked through the milling tool, but rather only extends in the form of a segment.
  • a possible variant of the invention provides that an arcuate wall is connected at an angle to the receptacle carrying the insert, on which the insert holder of the insert is supported, and that the insert holder points at several points - or is supported linearly on the wall.
  • the support points should be chosen so that they are at a maximum distance from each other. This is possible, for example, in that the plate holder is also arched on its side abutting the wall is formed, the arc on the plate holder has a larger radius than the arc on the wall. As a result, the plate holder is supported on the wall by means of two lines. This results in the greatest possible distance between the two support points.
  • FIG. 1 is a perspective exploded view of a milling tool
  • FIG. 2 shows the milling tool according to FIG. 1 in an assembly view
  • Fig. 3 shows a schematic representation of a workpiece that according to the milling tool. Fig. 2 is edited, and
  • Fig. 4 is a schematic sectional view of another workpiece that according to the milling tool. Fig. 2 is processed.
  • the base body 10 forms a shaft part with which the milling tool can be fixed in a milling machine.
  • flats 12 are provided which abut corresponding counter elements of the milling machine.
  • a receptacle 15 is introduced into the base body in the form of a pocket.
  • the receptacle 15 has a flat bearing surface, into which a threaded receptacle 13 is inserted.
  • An arcuate wall 16 closes at right angles to the flat support surface on. The wall 16 merges into an inclined visible surface 18, which has a scale 17.
  • An adjustment device is also introduced as an undercut T-groove in the flat support surface of the receptacle 15.
  • This T-groove like the wall 16, has an arcuate shape.
  • a sliding block 20 can be inserted into the T-slot.
  • the sliding block 20 is part of a plate holder 30 which is placed on the flat contact surface. On its rear side, the plate holder 30 strikes the wall 16 with its rear contact surface 34.
  • the contact surface 34 is arcuate.
  • the arc radius of the contact surface 34 is selected to be larger than the arc radius of the wall 16.
  • the plate holder 30 is thus supported in a linear manner on the wall 16 in the region of its outer edges.
  • the plate holder 30 is penetrated by two screw receptacles 31, inserted into the fastening screws 51 and can be screwed into threaded receptacles 21 of the sliding block 20.
  • the plate holder 30 can thus be braced with the base body 10.
  • a fastening screw 50 is used to fix a cutting plate 40 to the plate holder 30.
  • the fastening screw 50 can be inserted into a central screw receptacle of the cutting plate 40 and screwed into the threaded receptacle 13.
  • the cutting plate 40 braces against a bevel 33 of the plate holder 30.
  • the bevel 33 merges into a vertical wall 32 which is set back with respect to the cutting plate 40. This ensures that the cutting plate 40 always lies firmly against the bevel 33.
  • the plate holder 30 bears a marking 35 on the upper side. As can be seen from FIG. 2, the marking 35 serves to align the plate holder 30 with the scale 18. As can also be seen from FIG.
  • two cutting edges 42a, 42b protrude from the base body 10.
  • the two cutting edges 42a, 42b can be used as main cutting edges for machining workpieces.
  • the cutting edge 42b is inclined in the axial direction of the base body 10 by the chamfer angle o 2.
  • the cutting edge 42a is set against the axial direction of the base body 10 by the bevel angle “1.
  • FIG. 3 shows a workpiece 60.
  • the workpiece 60 is plate-shaped and has an upper side and a lower side which are parallel to one another.
  • the milling tool is guided with its cutting edge 42b along the top of the workpiece 60.
  • the milling tool is moved to the underside of the workpiece 60 and its cutting edge 42a is moved along the workpiece. This results in the back chamfer 62.
  • the forward chamfer 61 is inclined by the angle cc 1 and the back chamfer 62 by the angle oc 2.

Landscapes

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

Abstract

L'invention concerne un outil de fraisage, notamment pour réaliser des chanfreins avec des angles différents, comportant un corps de base (10) portant dans un logement (15) une plaquette de coupe (40) fixée sur un porte-plaquette (30). Cette plaquette de coupe présente au moins deux arêtes de coupe (42a, 42b) qui se rencontrent par paire au niveau d'un point d'intersection respectif, la plaquette de coupe étant réglable pour réaliser différents angles de chanfrein (18). Des chanfreins disposés différemment peuvent être réalisés avec un outil de fraisage sans modifications si le porte-plaquette maintient le point d'intersection des arêtes de coupe à l'extérieur du logement, la première arête de coupe, en tant que tranchant principal pour réaliser un premier angle de chanfrein, et la deuxième arête de coupe, en tant qu'autre tranchant principal pour réaliser un deuxième angle de chanfrein, étant libérées du logement.
PCT/EP1997/004724 1996-09-02 1997-08-29 Outil de fraisage pour fraiser les chanfreins WO1998009760A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97944812A EP0925134A1 (fr) 1996-09-02 1997-08-29 Outil de fraisage pour fraiser les chanfreins

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19635490A DE19635490A1 (de) 1996-09-02 1996-09-02 Fräswerkzeug zum Fräsen von Fasen
DE19635490.0 1996-09-02

Publications (1)

Publication Number Publication Date
WO1998009760A1 true WO1998009760A1 (fr) 1998-03-12

Family

ID=7804352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/004724 WO1998009760A1 (fr) 1996-09-02 1997-08-29 Outil de fraisage pour fraiser les chanfreins

Country Status (3)

Country Link
EP (1) EP0925134A1 (fr)
DE (1) DE19635490A1 (fr)
WO (1) WO1998009760A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144923A1 (de) 2001-09-12 2003-03-27 Guehring Joerg Spanabhebendes Werkzeug mit Wendeschneidplatte
ITMI20062124A1 (it) * 2006-11-07 2008-05-08 Pier Giuseppe Colpani Inserto per tornitura e relativo utensile di bloccaggio
CN102642033B (zh) * 2012-04-20 2014-12-17 镇江中船设备有限公司 凸轮轴法兰端连接孔正反面倒角的专用刀具
US9216458B2 (en) 2014-02-19 2015-12-22 Iscar, Ltd. Cutting tool having adjustable insert cutting angle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432936A1 (de) * 1984-09-07 1986-03-20 Gerhard 7311 Notzingen Stark Entgratwerkzeug
US4960352A (en) * 1989-01-17 1990-10-02 Nitto Kohki Co., Ltd. Chamfering machine
US5447395A (en) * 1993-03-30 1995-09-05 Lynch; John S. Angular offset chamfer tool
WO1996004091A1 (fr) * 1994-08-05 1996-02-15 Schneider Karl P Foret a auto-chanfreinage

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436779C2 (de) * 1994-10-14 1996-09-05 Audi Ag Spanabhebendes Werkzeug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432936A1 (de) * 1984-09-07 1986-03-20 Gerhard 7311 Notzingen Stark Entgratwerkzeug
US4960352A (en) * 1989-01-17 1990-10-02 Nitto Kohki Co., Ltd. Chamfering machine
US5447395A (en) * 1993-03-30 1995-09-05 Lynch; John S. Angular offset chamfer tool
WO1996004091A1 (fr) * 1994-08-05 1996-02-15 Schneider Karl P Foret a auto-chanfreinage

Also Published As

Publication number Publication date
EP0925134A1 (fr) 1999-06-30
DE19635490A1 (de) 1998-03-05

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