FR2759615A1 - Circular cutting tool for machining metal - Google Patents
Circular cutting tool for machining metal Download PDFInfo
- Publication number
- FR2759615A1 FR2759615A1 FR9702192A FR9702192A FR2759615A1 FR 2759615 A1 FR2759615 A1 FR 2759615A1 FR 9702192 A FR9702192 A FR 9702192A FR 9702192 A FR9702192 A FR 9702192A FR 2759615 A1 FR2759615 A1 FR 2759615A1
- Authority
- FR
- France
- Prior art keywords
- cutting tool
- face
- cavity
- cutting
- order
- 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
Links
- 238000003754 machining Methods 0.000 title description 4
- 239000002184 metal Substances 0.000 title description 3
- 229910052751 metal Inorganic materials 0.000 title description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 229910003460 diamond Inorganic materials 0.000 abstract description 3
- 239000010432 diamond Substances 0.000 abstract description 3
- 230000009172 bursting Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
-
- 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
- B23C5/2265—Securing arrangements for bits or teeth or cutting inserts by means of a wedge
-
- 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
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
- B23D77/02—Reamers with inserted cutting edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
OUTIL DE COUPE A PLAQUETTES POUR UTILISATION A TRES GRANDE
VITESSE DE ROTATION
La présente invention concerne un outil de coupe à plaquettes, utilisé par exemple pour l'usinage des métaux.INSERT CUTTING TOOL FOR VERY LARGE USE
ROTATION SPEED
The present invention relates to a cutting tool with inserts, used for example for machining metals.
Cet outil de coupe, cylindrique, du genre entre-broches est destiné à tourner à des vitesses de rotation très grandes, à la limite de l'éclatement. This cylindrical cutting tool of the inter-spindle type is intended to rotate at very high rotational speeds, at the limit of bursting.
Ce genre d'outil permet d'accroître les capacités de production au niveau du poste d'usinage. This type of tool increases production capacity at the machining station.
L'outil de coupe selon l'invention comporte au moins deux plaquettes et en particulier des plaquettes du genre PCD (polycristallin de diamant), qui sont logées dans des cavités appropriées et maintenues chacune au moyen d'une cale à coincement centripète. Chaque cale, après sa mise en place, est pressée par le biais de poussoirs en forme de vis. The cutting tool according to the invention comprises at least two inserts and in particular inserts of the PCD (polycrystalline diamond) type, which are housed in suitable cavities and each held by means of a wedge with centripetal wedging. Each wedge, after its installation, is pressed by means of screw-shaped pushers.
Toujours selon l'invention, les plaquettes comportent sur leur dos, un crantage coopérant avec un crantage de forme complémentaire aménagé sur la face d'appui de la cavité d'accueil correspondante. Still according to the invention, the plates have on their back, a notch cooperating with a notch of complementary shape arranged on the bearing face of the corresponding receiving cavity.
Selon une autre disposition de l'invention, les vis poussoirs qui maintiennent chaque cale, sont logées dans un forage qui traverse le corps cylindrique de l'outil, lesquelles vis sont manoeuvrées à leur extrémité opposée à celle qui est en pression sur ladite cale. According to another arrangement of the invention, the push screws which hold each block, are housed in a borehole which passes through the cylindrical body of the tool, which screws are operated at their end opposite to that which is under pressure on said block.
Selon une autre disposition de l'invention, chaque cale est en forme de coin, avec une face parallèle à l'axe de la ou des vis poussoirs, et une face en contact avec la face de coupe de la plaquette dont l'angle de coupe est de l'ordre de 5"; L'angle entre les deux faces de la cale étant de l'ordre de 20 , laquelle cale est disposée et guidée dans un logement dont la profondeur est suffisante pour lui permettre de se déplacer afin de dégager les crantages et permettre le démontage et le montage de la plaquette dans sa cavité d'accueil. According to another arrangement of the invention, each wedge is wedge-shaped, with a face parallel to the axis of the push screw or screws, and a face in contact with the cutting face of the insert, the angle of which cutting is of the order of 5 "; the angle between the two faces of the shim being of the order of 20, which shim is arranged and guided in a housing whose depth is sufficient to allow it to move in order to clear the notches and allow the disassembly and assembly of the plate in its receiving cavity.
Toujours selon l'invention, le diamètre du corps cylindrique de l'outil est de l'ordre de 50 mm. Still according to the invention, the diameter of the cylindrical body of the tool is of the order of 50 mm.
L'invention sera encore détaillée à l'aide de la description suivante et des dessins annexés, donnés à titre indicatif, et dans lesquels - la figure 1 est une vue en coupe de l'outil selon un plan perpendiculaire à son axe de rotation - la figure 2 représente une vue externe de l'outil avec une portion en coupe selon 2-2 - la figure 3 est une vue en coupe selon 3-3 de la figure 1 ; - la figure 4 représente une section d'une plaquette de coupe; - la figure 5 représente une section d'une cale de maintien de la plaquette - la figure 6 représente une vis poussoir. The invention will be further detailed with the aid of the following description and of the attached drawings, given for information only, and in which - FIG. 1 is a sectional view of the tool along a plane perpendicular to its axis of rotation - Figure 2 shows an external view of the tool with a sectional section along 2-2 - Figure 3 is a sectional view along 3-3 of Figure 1; - Figure 4 shows a section of a cutting insert; - Figure 5 shows a section of a block for holding the wafer - Figure 6 shows a push screw.
Tel que représenté sur les figures 1 et 2 en particulier, L'outil comprend un corps cylindrique 1 dont la partie centrale comporte des aménagements pour accueillir des plaquettes 2 du type par exemple plaquettes avec un revêtement de coupe en polycristallin de diamant (PCD). As shown in FIGS. 1 and 2 in particular, the tool comprises a cylindrical body 1, the central part of which comprises arrangements for accommodating inserts 2 of the type, for example inserts with a polycrystalline diamond (PCD) cutting coating.
Ce type d'outil, dont le diamètre est de l'ordre de 50 mm, peut tourner à des vitesses de rotation importantes, de l'ordre de 30 à 40.000 tours/mn. This type of tool, the diameter of which is around 50 mm, can rotate at high rotational speeds, around 30 to 40,000 rpm.
Le corps cylindrique 1 est normalement positionné entre deux broches non représentées. The cylindrical body 1 is normally positioned between two pins, not shown.
Les plaquettes 2 sont disposées avec un angle de coupe de l'ordre de 5 , dans des cavités 3 aménagées dans le corps 1, parallèlement à l'axe de rotation. Le dos de la plaquette comporte un crantage 4 qui coopère avec un crantage 5 de forme complémentaire, aménagé sur la face d'accueil de la cavité 3. Les crantages 4 et 5 constituent un moyen de retenue de la plaquette 2 dans sa cavité 3. Le crantage 5 de la cavité 3 est réalisé avec une petite fraise de forme. The plates 2 are arranged with a cutting angle of the order of 5, in cavities 3 arranged in the body 1, parallel to the axis of rotation. The back of the plate has a notch 4 which cooperates with a notch 5 of complementary shape, arranged on the receiving face of the cavity 3. The notches 4 and 5 constitute a means of retaining the plate 2 in its cavity 3. The notch 5 of the cavity 3 is produced with a small shaped cutter.
La plaquette 2 est appliquée contre le crantage 5 au moyen d'une cale 6 qui est insérée dans une cavité 7 contiguë à la cavité 3. The plate 2 is applied against the notch 5 by means of a wedge 6 which is inserted in a cavity 7 contiguous to the cavity 3.
Cette cavité 7 se présente sous la forme d'une grande lumière parallèle à l'axe de rotation de l'outil. This cavity 7 is in the form of a large lumen parallel to the axis of rotation of the tool.
La cale 6 se présente sous la forme d'un coin. Elle se loge dans la cavité 7. Son embase a une largeur identique à celle de la cavité 3, ce qui lui permet d'être guidée dans cette cavité. Elle est en appui avec sa face 9 contre la paroi 10 de la cavité 7, sa face 11 qui est en contact avec la face de coupe 12 de la plaquette 2, fait un angle de l'ordre de 20 avec la face 9. The wedge 6 is in the form of a corner. It is housed in the cavity 7. Its base has a width identical to that of the cavity 3, which allows it to be guided in this cavity. It is in abutment with its face 9 against the wall 10 of the cavity 7, its face 11 which is in contact with the cutting face 12 of the wafer 2, makes an angle of the order of 20 with the face 9.
Lorsque la cale 6 est introduite jusqu'au fond du logement 7 c'est-à-dire en appui sur la surface 13, avec sa face 14, la cavité 3 est suffisamment dégagée pour permettre l'introduction ou le dégagement de la plaquette 2 par rapport à ladite cavité 3. When the wedge 6 is introduced as far as the bottom of the housing 7, that is to say bearing on the surface 13, with its face 14, the cavity 3 is sufficiently clear to allow the introduction or disengagement of the wafer 2 relative to said cavity 3.
La cale 6 est ensuite mise en position normale de blocage de la plaquette 2 au moyen de vis poussoirs 15 dont une extrémité comporte un téton 16 qui est en contact avec la face 14 de ladite cale, et dont l'autre extrémité est aménagée pour être manoeuvrée au moyen d'une clé ou autre. The wedge 6 is then placed in the normal locking position of the wafer 2 by means of push screws 15, one end of which has a stud 16 which is in contact with the face 14 of said wedge, and the other end of which is arranged to be operated by a key or the like.
Les vis poussoirs 15, au nombre de trois par cale, sur l'exemple d'outil représenté sur les figures, sont logées dans des orifices filetées 17 qui traversent le corps 1, de part en part. Ces orifices 17 sont centrés sur des axes 19 qui sont disposés à l'intersection d'un plan perpendiculaire à l'axe de rotation de l'outil et d'un plan parallèle à ce dernier. Les axes 19 des vis 15 d'une même cale se situent dans un même plan parallèle à l'axe de l'outil et on trouve deux vis de cales différentes dans l'autre plan qui est perpendiculaire audit axe de rotation. Les axes 19 font un angle de l'ordre de 15 par exemple, avec le plan passant par l'axe de rotation de l'outil et par les arêtes de coupe 20 des deux plaquettes diamétralement opposées. The push screws 15, three in number per block, on the example of tool shown in the figures, are housed in threaded holes 17 which pass through the body 1, right through. These orifices 17 are centered on axes 19 which are arranged at the intersection of a plane perpendicular to the axis of rotation of the tool and of a plane parallel to the latter. The axes 19 of the screws 15 of the same shim lie in the same plane parallel to the axis of the tool and there are two different shim screws in the other plane which is perpendicular to said axis of rotation. The axes 19 make an angle of the order of 15 for example, with the plane passing through the axis of rotation of the tool and through the cutting edges 20 of the two diametrically opposite inserts.
A leur partie arrière, c'est-à-dire à l'opposé des logements 7 des cales 6, les orifices 17 débouchent dans des lamages 21. At their rear part, that is to say opposite to the housings 7 of the wedges 6, the orifices 17 open into countersinks 21.
Ce type d'outil est plus particulièrement adapté à des usinages de pièces métalliques qui s'effectuent à de très grandes vitesses de rotation de l'ordre de 40.000 tours/mn. This type of tool is more particularly suitable for machining metal parts which are carried out at very high rotational speeds of the order of 40,000 revolutions / min.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9702192A FR2759615B1 (en) | 1997-02-20 | 1997-02-20 | INSERT CUTTING TOOL FOR USE AT VERY HIGH ROTATION SPEED |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9702192A FR2759615B1 (en) | 1997-02-20 | 1997-02-20 | INSERT CUTTING TOOL FOR USE AT VERY HIGH ROTATION SPEED |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2759615A1 true FR2759615A1 (en) | 1998-08-21 |
FR2759615B1 FR2759615B1 (en) | 1999-05-07 |
Family
ID=9504117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9702192A Expired - Fee Related FR2759615B1 (en) | 1997-02-20 | 1997-02-20 | INSERT CUTTING TOOL FOR USE AT VERY HIGH ROTATION SPEED |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2759615B1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1681675A (en) * | 1925-05-16 | 1928-08-21 | Frank P Miller | Rotary cutter |
US1951101A (en) * | 1932-06-01 | 1934-03-13 | Frank P Miller | Inserted blade cutter |
GB619362A (en) * | 1946-12-04 | 1949-03-08 | James Jenkins | Improvements in or relating to circular cutter blocks |
GB2087792A (en) * | 1980-11-25 | 1982-06-03 | Wadkin Ltd | Profiling discs for woodworking machinery |
EP0389800A1 (en) * | 1989-03-31 | 1990-10-03 | General Electric Company | Method for producing polycrystalline compact tool blanks with flat carbide support/diamond or CBN interfaces |
-
1997
- 1997-02-20 FR FR9702192A patent/FR2759615B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1681675A (en) * | 1925-05-16 | 1928-08-21 | Frank P Miller | Rotary cutter |
US1951101A (en) * | 1932-06-01 | 1934-03-13 | Frank P Miller | Inserted blade cutter |
GB619362A (en) * | 1946-12-04 | 1949-03-08 | James Jenkins | Improvements in or relating to circular cutter blocks |
GB2087792A (en) * | 1980-11-25 | 1982-06-03 | Wadkin Ltd | Profiling discs for woodworking machinery |
EP0389800A1 (en) * | 1989-03-31 | 1990-10-03 | General Electric Company | Method for producing polycrystalline compact tool blanks with flat carbide support/diamond or CBN interfaces |
Also Published As
Publication number | Publication date |
---|---|
FR2759615B1 (en) | 1999-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20061031 |