ITTO20130440A1 - INTERCHANGEABLE INSERT FOR CUTTING BLADE - Google Patents

INTERCHANGEABLE INSERT FOR CUTTING BLADE

Info

Publication number
ITTO20130440A1
ITTO20130440A1 IT000440A ITTO20130440A ITTO20130440A1 IT TO20130440 A1 ITTO20130440 A1 IT TO20130440A1 IT 000440 A IT000440 A IT 000440A IT TO20130440 A ITTO20130440 A IT TO20130440A IT TO20130440 A1 ITTO20130440 A1 IT TO20130440A1
Authority
IT
Italy
Prior art keywords
insert
cutting blade
flat surface
cutting
circular
Prior art date
Application number
IT000440A
Other languages
Italian (it)
Inventor
Marco Zanardi
Original Assignee
Lazzari Ohg Imp Ianti Ind
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 Lazzari Ohg Imp Ianti Ind filed Critical Lazzari Ohg Imp Ianti Ind
Priority to IT000440A priority Critical patent/ITTO20130440A1/en
Publication of ITTO20130440A1 publication Critical patent/ITTO20130440A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/08Disc-type cutters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/16Milling-cutters characterised by physical features other than shape
    • B23C5/20Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22Securing arrangements for bits or teeth or cutting inserts
    • B23C5/2204Securing 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
    • B23C5/2208Securing 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 
    • B23C5/2213Securing 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  having a special shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2200/00Details of milling cutting inserts
    • B23C2200/16Supporting or bottom surfaces
    • B23C2200/165Supporting or bottom surfaces with one or more grooves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2210/00Details of milling cutters
    • B23C2210/16Fixation of inserts or cutting bits in the tool
    • B23C2210/168Seats for cutting inserts, supports for replacable cutting bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Description

Descrizione dell’Invenzione Industriale avente per titolo: Description of the Industrial Invention entitled:

“Inserto intercambiabile per lama da taglio†. â € œInterchangeable insert for cutting bladeâ €.

DESCRIZIONE DESCRIPTION

La presente invenzione riguarda un inserto intercambiabile per lama da taglio. The present invention relates to an interchangeable insert for a cutting blade.

In particolare l’invenzione riguarda un utensile per macchine da taglio, munito di una moltitudine di denti, inseriti individualmente, in modo intercambiabile, lungo il bordo di un’anima di forma circolare sagomata alla periferia secondo un profilo della dentatura (ovvero una serie di vani e di sporgenze). In particular, the invention relates to a tool for cutting machines, equipped with a multitude of teeth, inserted individually, interchangeably, along the edge of a circular core shaped at the periphery according to a tooth profile (i.e. a series of compartments and projections).

Lo stato dell’arte à ̈ rappresentato dalla domanda di brevetto WO2010083541, riguardante un dispositivo per il taglio di tubi o billette metalliche, caratterizzato da un disco circolare sagomato alla periferia e delimitato da una pluralità di inserti di taglio intercambiabili, in particolare di metallo duro, alloggiati per incastro e fissati tramite viti, in sedi lungo la periferia del disco. The state of the art is represented by the patent application WO2010083541, concerning a device for cutting metal pipes or billets, characterized by a circular disk shaped at the periphery and delimited by a plurality of interchangeable cutting inserts, in particular of metal hard, housed by interlocking and fixed by screws, in seats along the periphery of the disc.

Le forze di taglio, parallele e trasversali al piano del disco, vengono assorbite da ciascuna di dette sedi, formata da due superfici fra loro ortogonali e dai relativi fianchi consistenti nello spessore del disco stesso. The shear forces, parallel and transversal to the plane of the disc, are absorbed by each of said seats, formed by two surfaces orthogonal to each other and by the relative sides consisting of the thickness of the disc itself.

Ciascun inserto di taglio à ̈ sostanzialmente prismatico con almeno un tagliente ed almeno un foro passante, per ricevere una vite fissata in una sede filettata del disco. Each cutting insert is substantially prismatic with at least one cutting edge and at least one through hole, to receive a screw fixed in a threaded seat of the disc.

In vista dello stato della tecnica, scopo della presente invenzione à ̈ quello di realizzare inserti di taglio intercambiabili, alloggiati per incastro e fissati tramite viti, in sedi lungo la periferia di un disco circolare, in cui la forma di detti inserti à ̈ tale da permettere di contrastare le forze trasversali e parallele al piano del disco. In view of the state of the art, the purpose of the present invention is to produce interchangeable cutting inserts, housed by interlocking and fixed by means of screws, in seats along the periphery of a circular disk, in which the shape of said inserts is such as to allow to counteract the transverse forces parallel to the disc plane.

In accordo alla presente invenzione, detto scopo viene raggiunto mediante un inserto per lama da taglio, di tipo intercambiabile, fissato alla periferia sagomata di un disco circolare, caratterizzato dal fatto che una faccia inferiore delimita una scanalatura formata da una superficie piana e da una coppia di pareti laterali, tra loro parallele e perpendicolari alla superficie piana, e dal fatto che l’intersezione tra la superficie piana e ciascuna parete laterale à ̈ occupata da una gola circolare. In accordance with the present invention, said object is achieved by means of an insert for a cutting blade, of the interchangeable type, fixed to the shaped periphery of a circular disk, characterized in that a lower face defines a groove formed by a flat surface and by a pair of side walls, parallel to each other and perpendicular to the flat surface, and by the fact that the intersection between the flat surface and each side wall is occupied by a circular groove.

Le caratteristiche della presente invenzione risulteranno maggiormente evidenti dalla seguente descrizione di una sua forma di realizzazione pratica, illustrata a titolo di esempio non limitativo nei disegni allegati, in cui: The characteristics of the present invention will become more evident from the following description of a practical embodiment thereof, illustrated by way of non-limiting example in the attached drawings, in which:

le figure 1 e 2 mostrano una vista in assonometria di un inserto intercambiabile per lama da taglio secondo la presente invenzione; Figures 1 and 2 show an axonometric view of an interchangeable insert for a cutting blade according to the present invention;

la figura 3 mostra una vista laterale di una porzione di disco circolare munito di inserti intercambiabili del tipo di figura 1 e 2; Figure 3 shows a side view of a portion of a circular disc equipped with interchangeable inserts of the type of Figures 1 and 2;

la figura 4 mostra una vista in sezione locale ingrandita rispetto ad un piano IV parallelo al piano di figura 3; Figure 4 shows an enlarged local sectional view with respect to a plane IV parallel to the plane of Figure 3;

la figura 5 mostra una vista in sezione ingrandita secondo la linea V-V di figura 3. figure 5 shows an enlarged sectional view along the line V-V of figure 3.

Con riferimento alle figure 1 e 2, un inserto di taglio 1 Ã ̈ un parallelepipedo munito di bordi taglienti 11, 12 e 13, intersecanti rispettivamente una superficie di spoglia superiore 14, 15 e 16, collegata ad una faccia superiore 30, ed una superficie di spoglia inferiore 17, 18 e 19, collegata ad una faccia inferiore 40. With reference to Figures 1 and 2, a cutting insert 1 is a parallelepiped provided with cutting edges 11, 12 and 13, intersecting respectively a top rake surface 14, 15 and 16, connected to an upper face 30, and a surface of lower rake 17, 18 and 19, connected to a lower face 40.

Il bordo tagliente 12 Ã ̈ interrotto da una scanalatura 20 percorrente la superficie di spoglia inferiore 18. The cutting edge 12 is interrupted by a groove 20 running along the lower rake surface 18.

La faccia inferiore 40 delimita una scanalatura 41, formata da una superficie piana 42 e da una coppia di pareti laterali 43, tra loro parallele e perpendicolari alla superficie piana 42. The lower face 40 defines a groove 41, formed by a flat surface 42 and by a pair of side walls 43, mutually parallel and perpendicular to the flat surface 42.

L’intersezione tra la superficie piana 42 e ciascuna parete laterale 43 à ̈ occupata da una gola circolare 44. The intersection between the flat surface 42 and each side wall 43 is occupied by a circular groove 44.

Un foro circolare attraversa le facce 30 e 40 rispettivamente con cilindri di diverso diametro 31 e 45, separati da una svasatura conica 32. A circular hole passes through faces 30 and 40 respectively with cylinders of different diameters 31 and 45, separated by a conical countersink 32.

Un bordo smussato 46 collega una faccia 47, opposta alla superficie di spoglia inferiore 18, alle superfici piane 40 e 42. A beveled edge 46 connects a face 47, opposite the lower rake surface 18, to the flat surfaces 40 and 42.

Con riferimento alle figura 3, 4 e 5, un disco 2 à ̈ costituito da un’anima circolare 21 dalla quale aggettano sporgenze trapezoidali 22, raccordate alla base ed equamente distribuite in senso circonferenziale. With reference to figures 3, 4 and 5, a disk 2 consists of a circular core 21 from which trapezoidal protrusions 22 project, connected to the base and equally distributed in a circumferential direction.

Ciascuna sporgenza trapezoidale 22 possiede una scanalatura esterna, formata da una base 23 ed una parete 24. La base 23 giace su un piano pressoché radiale ed à ̈ attraversata da un foro cieco filettato 25. Each trapezoidal projection 22 has an external groove, formed by a base 23 and a wall 24. The base 23 lies on an almost radial plane and is crossed by a threaded blind hole 25.

Ciascun bordo della parete 24 si congiunge ad un bordo della base 23 della scanalatura adiacente mediante un raccordo curvilineo 26 tangente all’anima circolare 21. Each edge of the wall 24 joins an edge of the base 23 of the adjacent groove by means of a curvilinear connection 26 tangent to the circular core 21.

Il disco 2 alloggia la moltitudine di inserti di taglio 1 mediante la base 23 e la parete 24. The disc 2 houses the multitude of cutting inserts 1 by means of the base 23 and the wall 24.

La coppia di gole circolari 44 assicura il contatto tra la base 23 del disco 2 e la superficie piana 42 dell’inserto 1 mentre la coppia di pareti laterali 43 assicura l’allineamento trasversale dell’inserto 1 rispetto al disco 2. The pair of circular grooves 44 ensures contact between the base 23 of the disc 2 and the flat surface 42 of the insert 1 while the pair of side walls 43 ensures the transverse alignment of the insert 1 with respect to the disc 2.

Una vite 3, avvitata nel foro 25, permette di fissare ciascun inserto di taglio 1 al disco 2, facendo sporgere alla massima distanza radiale i taglienti 11, 12 e 13. A screw 3, screwed into the hole 25, allows each cutting insert 1 to be fixed to the disc 2, making the cutting edges 11, 12 and 13 protrude at the maximum radial distance.

Ciascun raccordo curvilineo 26 assicura lo scorrimento del truciolo durante la fase di taglio. Each curvilinear fitting 26 ensures the sliding of the chip during the cutting phase.

L’inserto 1, munito di pareti laterali 43, raggiunge lo scopo di mantenersi allineato rispetto al disco 2 al quale à ̈ fissato, contrastando le forze trasversali indotte durante il taglio. The insert 1, equipped with side walls 43, achieves the purpose of keeping itself aligned with respect to the disk 2 to which it is fixed, counteracting the transverse forces induced during cutting.

Inoltre, la coppia di scanalature 44 assicura il contatto tra la superficie 42 dell’inserto 1 rispetto alla sede 23 del disco 2. Furthermore, the pair of grooves 44 ensures contact between the surface 42 of the insert 1 with respect to the seat 23 of the disc 2.

Claims (3)

RIVENDICAZIONI 1. Inserto (1) per lama da taglio, di tipo intercambiabile, fissato alla periferia sagomata di un disco circolare (2), caratterizzato dal fatto che una faccia inferiore (40) delimita una scanalatura (41) formata da una superficie piana (42) e da una coppia di pareti laterali (43), tra loro parallele e perpendicolari alla superficie piana (42), e dal fatto che l’intersezione tra la superficie piana (42) e ciascuna parete laterale (43) à ̈ occupata da una gola circolare (44). CLAIMS 1. Insert (1) for cutting blade, of interchangeable type, fixed to the shaped periphery of a circular disk (2), characterized in that a lower face (40) delimits a groove (41) formed by a flat surface (42 ) and by a pair of side walls (43), parallel to each other and perpendicular to the flat surface (42), and by the fact that the intersection between the flat surface (42) and each side wall (43) is occupied by a circular groove (44). 2. Inserto (1) per lama da taglio, secondo la rivendicazione 1, caratterizzato dal fatto di essere un parallelepipedo munito di bordi taglienti (11, 12, 13) intersecanti rispettivamente una superficie di spoglia superiore (14, 15, 16), collegata ad una faccia superiore (30), ed una superficie di spoglia inferiore (17, 18, 19) collegata ad una faccia inferiore (40), detta faccia inferiore (40) delimitando detta scanalatura (41). 2. Insert (1) for cutting blade, according to claim 1, characterized by the fact of being a parallelepiped provided with cutting edges (11, 12, 13) intersecting respectively a top rake surface (14, 15, 16), connected to an upper face (30), and a lower rake surface (17, 18, 19) connected to a lower face (40), said lower face (40) delimiting said groove (41). 3. Inserto (1) per lama da taglio, secondo la rivendicazione 1, caratterizzato dal fatto che la coppia di gole circolari (44) assicura il contatto tra la superficie piana (42) ed una base (23) del disco circolare (2), e dal fatto che la coppia di pareti laterali (43) mantiene allineato l’inserto (1) rispetto al disco (2).3. Insert (1) for cutting blade, according to claim 1, characterized in that the pair of circular grooves (44) ensures contact between the flat surface (42) and a base (23) of the circular disk (2) , and by the fact that the pair of side walls (43) keeps the insert (1) aligned with the disc (2).
IT000440A 2013-05-30 2013-05-30 INTERCHANGEABLE INSERT FOR CUTTING BLADE ITTO20130440A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000440A ITTO20130440A1 (en) 2013-05-30 2013-05-30 INTERCHANGEABLE INSERT FOR CUTTING BLADE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000440A ITTO20130440A1 (en) 2013-05-30 2013-05-30 INTERCHANGEABLE INSERT FOR CUTTING BLADE

Publications (1)

Publication Number Publication Date
ITTO20130440A1 true ITTO20130440A1 (en) 2013-08-29

Family

ID=48951520

Family Applications (1)

Application Number Title Priority Date Filing Date
IT000440A ITTO20130440A1 (en) 2013-05-30 2013-05-30 INTERCHANGEABLE INSERT FOR CUTTING BLADE

Country Status (1)

Country Link
IT (1) ITTO20130440A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330668A1 (en) * 1993-09-10 1995-03-16 Widia Heinlein Gmbh Indexable insert
US20020066352A1 (en) * 2000-12-05 2002-06-06 Amir Satran Rotary cutting tool
WO2004033137A1 (en) * 2002-10-10 2004-04-22 Seco Tools Ab; (Publ) Tool and cutting insert with diametrically opposite cutting corners on different sides of the insert
DE202005006762U1 (en) * 2005-04-26 2005-06-30 Linsinger-Maschinenbau Ges.M.B.H. Side milling cutter tool and cutting bit, comprises disc-shaped body with seats for accommodating cutting bits, so that cutting forces are absorbed

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4330668A1 (en) * 1993-09-10 1995-03-16 Widia Heinlein Gmbh Indexable insert
US20020066352A1 (en) * 2000-12-05 2002-06-06 Amir Satran Rotary cutting tool
WO2004033137A1 (en) * 2002-10-10 2004-04-22 Seco Tools Ab; (Publ) Tool and cutting insert with diametrically opposite cutting corners on different sides of the insert
DE202005006762U1 (en) * 2005-04-26 2005-06-30 Linsinger-Maschinenbau Ges.M.B.H. Side milling cutter tool and cutting bit, comprises disc-shaped body with seats for accommodating cutting bits, so that cutting forces are absorbed

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