WO1995007787A1 - Spannfutter für drehende werkzeuge - Google Patents
Spannfutter für drehende werkzeuge Download PDFInfo
- Publication number
- WO1995007787A1 WO1995007787A1 PCT/EP1994/002882 EP9402882W WO9507787A1 WO 1995007787 A1 WO1995007787 A1 WO 1995007787A1 EP 9402882 W EP9402882 W EP 9402882W WO 9507787 A1 WO9507787 A1 WO 9507787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slide
- head sleeve
- guide
- chuck according
- axial plane
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/108—Bits for countersinking having a centering drill
-
- 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
- B23B29/24—Tool holders for a plurality of cutting tools, e.g. turrets
- B23B29/248—Tool holders for a plurality of cutting tools, e.g. turrets with individually adjustable toolholders
Definitions
- the invention relates to a chuck for rotating tools with a multi-part housing, which has a rear shaft for insertion into a machine spindle and a front head sleeve, in the clamping jaws for machining tools with different shaft diameters in contact with a conical inner surface of the head sleeve and axially and radially movable and are jointly adjustable, the head sleeve having a rotationally symmetrical basic shape with a coaxial bore adjoining the conical inner surface and a conical outer end surface.
- Such a chuck is known from EP-B-0054774. Only one operation can be carried out with the clamped tool. For example, chamfering the edge of the hole requires a second operation with a second tool.
- GB-A-2263654 and GB-A-2059829 propose to design the end faces of the clamping jaws as cutting surfaces in order to be able to drill and chamfer in one operation.
- only a single second work process is possible with this and after the cutting edges become blunt, the entire drill chuck must be dismantled in order to replace the clamping jaws.
- WO 90/04474 discloses a chuck that is suitable only for a very specific shaft diameter, however, that at its front end carries a chamfering head which is rotatable through 360 ° about the axis of the chuck in order to align the cutting edges with the spiral grooves of the drill.
- the invention aims to design a chuck of the type mentioned, which is therefore suitable for drills, milling cutters or the like a variety of different processing allowed.
- a linear guide is formed, in which a slide between a radially inner and a radial external position is slidably guided that the guide opens into the coaxial bore of the head sleeve and extends at least approximately to its outer circumference and runs parallel to an axial plane of the head sleeve and that a processing element is positively held and detachable at a radially inner end of the slide is screwed, the working area is at least approximately in the axial plane mentioned.
- the slide is a carrier for various processing elements, which can be used optionally and whose position can be changed by adjusting the slide.
- the chuck which is equipped with tools, can drill a blind hole, chamfer the edge of the hole and insert an annular groove.
- the chuck is therefore very universal.
- the main tool allows drilling, milling, grinding, etx. in a large diameter range and that on the slider or both sliders too fastening processing elements enable additional work processes such as chamfering, deburring, tarpaulin, axial grooving, profiling, roughening, brushing etc.
- a blind insert is removably fastened in at least one of the recesses of the head sleeve and at least for the most part fills the recess.
- the blind insert ensures a mass balance, which is important at high chuck speeds. If all recesses with blind inserts are preferably closed flush with the face, a single chuck is created. This can, however, be quickly converted into a multiple tool, in which the blind insert or inserts are removed and replaced by slides with processing elements.
- the recesses are preferably not arranged radially with their center, rather the center of the recess or of the slide is offset from the axial plane. This enables the cutting plate to be arranged laterally on the slide in such a way that its cutting edge lies at least approximately in the axial plane mentioned. This makes it possible to carry out machining on very small diameters.
- the formation of a support surface in the guide, on which the slide can be supported with a counter surface, is particularly advantageous, the cutting plate being fastened to the slide side surface opposite this counter surface of the slide.
- the reaction forces occurring during cutting are then transmitted in the circumferential direction from the cutting plate to the slide and from there to the support surface of the head sleeve.
- the arrangement of the recess or the recesses is thus preferably made such that - with respect to an imaginary axial plane dividing the head sleeve into two halves - each Recess or each of the two recesses is at least for the most part in one of the head sleeve halves.
- the guide has a flat bottom surface which forms an angle with the axis of the head sleeve at least approximately equal to that of the conical end surface. Thanks to this feature, the end wall of the head sleeve does not have to be too thick and the contact surface of the slide on the support surface of the head sleeve is enlarged. The actual sliding path of the slide is increased in relation to a certain radial infeed, which benefits the setting accuracy.
- the slide has a longitudinal toothing extending in the sliding direction and a blind hole is provided in the head sleeve for guiding a rotatable drive means which has a circumferential toothing which engages with the drive in the longitudinal toothing of the slide.
- this drive means can consist of a rotatably mounted toothed pinion, which can be rotated with a centrally usable tool in order to adjust the slide in the longitudinal direction.
- the drive means is designed as a hand tool in the form of a screwdriver. This screwdriver has a round pin instead of a blade, which is followed by the circumferential toothing, so that the pin only has to be inserted into the blind hole in order to engage in drive engagement with the rack design of the slide.
- the cross section of the slide is preferably L-shaped, the slide engaging with a narrow web in an undercut groove in the support surface of the head sleeve. So that the slide is secured against axial lifting.
- This footbridge can have the mentioned longitudinal toothing or the slide is formed with an inverted T-cross section, so that the web lying away from the support surface of the head sleeve carries the longitudinal toothing.
- the support surface of the guide extends at an acute angle to the floor surface. It can then be designed as a flat undercut side surface.
- the slide is then equipped with a complementary wedge surface, so that this design also secures the slide against axial lifting. In the case of a guide with a symmetrical cross section, the guide would then be dovetail-shaped.
- FIG. 1 shows an axial section through the head sleeve with the rear part of the housing shown in broken lines
- FIG. 2 shows an end view of the head sleeve according to FIG. 1 ,
- FIG. 3 is a sectional view through the head sleeve along line A-C of FIG. 1 ,
- FIG. 4 is an end view similar to FIG. 2, but after removing the additional tools with their slides and closing the recesses with blind pieces,
- FIG. 5 shows a sectional view along the line BC in the embodiment according to FIG. 4,
- FIG. 6 the view of a chuck, the head sleeve of which has two slides which can be actuated by means of rack drives,
- FIG. 7 is a sectional view similar to FIG. 3, but by the embodiment of the head sleeve according to FIG. 6, and
- FIG. 8 is a view of the embodiment shown in FIG. 6 slider used.
- the chuck according to FIG. 1 has a housing 1 0, which is formed in two parts and a head sleeve 1 4 is screwed onto its shaft-like rear part 1 2 and is secured on the housing part 12 by means of a radial screw 1 6 against relative rotation.
- the head sleeve 14 has an inner cone 18 on which the jaws 20 are supported.
- a cylindrical bore 22 adjoins the inner cone 20 and is open on the head side.
- the conical end face of the head sleeve 14 is designated by 24.
- a guide 28 for a slide 30 is formed in each of which a guide 28 for a slide 30 is formed.
- Parallel to an axial plane 32 of the head sleeve 1 4 is a support surface 34 which intersects the end surface 24 at right angles in the exemplary embodiment.
- the slider 30 is supported on this support surface 34 with a flat counter surface 36.
- the slider 30 has a flat bottom surface 38, which contacts the likewise flat bottom 40 of the recess 26.
- This floor 40 lies in a sloping plane, which is penetrated at right angles by the axial plane 32 of the head sleeve 14.
- the inclined plane of the base 40 forms the same angle as the end face 24 with the axis of the head sleeve 1 4.
- the slider 30 has a projecting web 42 on the bottom, which engages in a groove 44 of the guide 28 adjoining the bottom surface 40 of the recess 26.
- the web 44 extends over the entire length of the slide 30 and the groove 44 in turn extends over the length of the guide 28.
- the guide 28 is open at the end and extends over the surface line length of the end face 24, so that the slide 30 along the guide 28 in the bore 22 can be retracted and can also protrude beyond the outer circumference of the head sleeve.
- the slider 30 has an elongated hole 46 extending in its longitudinal direction and a fastening screw 48 is screwed into a threaded hole 50 of the head sleeve 1 4.
- the axis of the fastening screw 48 extends tangentially to the imaginary diameter related to the axis of the head sleeve 14.
- the axis of the threaded bore 50 for the fastening screw 48 runs at right angles to the support surface 34 of the guide 28.
- the elongated hole 46 limits the sliding movement of the slide 30.
- the sliding path can be increased by providing two threaded holes 50 at the same distance from the bottom 40 of the recess 26 for the optional engagement of the screw 48.
- a cutting plate 52 is received in a form-fitting manner in a recess 54, which is formed on the side surface opposite the counter surface 36 of the slide 30.
- the cutting edge 56 of the cutting plate 52 lies exactly in the axial plane 32, so that the cutting plate 52 can also be used on a very small radius.
- the recess 54 in the slide 30 has the same depth as the cutting plate 52, so that it is opposite to the counter surface 36 of the slide 30 Side surface is flush, which in turn is also in the axial plane 32.
- the cutting plate 52 is secured in the recess 54 of the slide 30 by means of a screw 58.
- each slider is located in one of the two imaginary halves of the head sleeve 14 separated by this axial plane 32.
- the two recesses 26 with their guides 28 and the slides 30 are identical in shape, but the cutting plates 52 can be quite different and the sliders 30 can also be adjusted to different longitudinal positions during operation in order to effect different machining operations on the workpiece.
- FIGS. 4 and 5 illustrate a blind insert 58 which, when there is no slide 30, closes the recess 26 flush with the end face.
- the blind insert 58 has a bore aligned with the threaded bore 50, so that it can be fastened to the head sleeve 1 4 with a screw 60.
- the support surface 34 'of the guide deviating from the support surface 34 according to FIGS .
- the guide 28 'thus forms half of a dovetail guide.
- the slide 30 has a rack-like toothing 62.
- the head sleeve 14 has a blind hole 64 introduced at right angles to the end face 24, into which the toothing 62 of the Slider 30 engages.
- the longitudinally grooved front end of a tool 66 can be inserted into the blind hole 64.
- the slide 30 is then displaced in its guide 28 'by the clutch engagement.
- the slider 30 is then clamped against the guide 28 'by means of a clamping plate 68 by means of a grub screw 70 which is equipped with opposing threaded sections.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94926911A EP0719196A1 (de) | 1993-09-16 | 1994-08-31 | Spannfutter für drehende werkzeuge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4331453A DE4331453A1 (de) | 1993-09-16 | 1993-09-16 | Spannfutter |
DEP4331453.8 | 1993-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995007787A1 true WO1995007787A1 (de) | 1995-03-23 |
Family
ID=6497847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/002882 WO1995007787A1 (de) | 1993-09-16 | 1994-08-31 | Spannfutter für drehende werkzeuge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0719196A1 (de) |
DE (1) | DE4331453A1 (de) |
WO (1) | WO1995007787A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005002767A1 (en) * | 2003-07-03 | 2005-01-13 | Seco Tools Ab | Tool for chip removing machining with adjustable countersink |
US7387461B2 (en) * | 2004-05-11 | 2008-06-17 | Captio Corporation | Binder having compartment with slotted access |
US7632050B2 (en) * | 2003-08-15 | 2009-12-15 | Allied Machine & Engineering Corp. | Drilling tool and method for producing port seals |
IT201700030700A1 (it) * | 2017-03-21 | 2018-09-21 | Walter Tosto S P A | Punta multifunzione. |
DE102006016290C5 (de) | 2006-04-06 | 2022-02-17 | Gühring KG | Mehrteiliges Schaftwerkzeug, insbesondere Feinbearbeitungswerkzeug |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29614727U1 (de) | 1996-08-23 | 1996-10-02 | Fritz Schunk GmbH Fabrik für Spann- und Greifwerkzeuge, 74348 Lauffen | Dehnspannfutter |
DE29616165U1 (de) * | 1996-09-17 | 1998-01-22 | Widia GmbH, 45145 Essen | Werkzeugadapter |
JP5167782B2 (ja) * | 2007-11-19 | 2013-03-21 | 三菱マテリアル株式会社 | 切刃付リング |
ITMO20130054A1 (it) * | 2013-03-01 | 2014-09-02 | Sau S P A | Gruppo portapunta a pinza perfezionato. |
ITMO20130055A1 (it) * | 2013-03-01 | 2014-09-02 | Sau S P A | Gruppo portautensili perfezionato per l'esecuzione simultanea di una foratura e di almeno una ulteriore lavorazione rotativa coassiale. |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR601035A (fr) * | 1925-07-10 | 1926-02-20 | Perfectionnements aux mandrins porte-forets, ayant pour but de permettre, dans une seule opération, le perçage et le fraisage des trous, et, en outre, le réglage des forets à longueur voulue | |
EP0054774A2 (de) * | 1980-12-20 | 1982-06-30 | Otto Zettl | Spannfutter |
WO1990004474A1 (de) * | 1988-10-17 | 1990-05-03 | Mas Maschinenbau Ag | Bohr-/faswerkzeug |
DE9206148U1 (de) * | 1992-05-07 | 1992-07-30 | Sassex Werkzeug GmbH & Co. KG, 4800 Bielefeld | Kombinationswerkzeug |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH516363A (de) * | 1969-12-02 | 1971-12-15 | Mandrin Gmbh | Mehrschneidenwerkzeug mit Zentrierbohrer |
CH582554A5 (de) * | 1975-01-22 | 1976-12-15 | Muellheim Ag Utilis | |
GB2059829A (en) * | 1979-10-11 | 1981-04-29 | Speight R T | Drill chuck with cutting edges |
US5318606A (en) * | 1989-04-04 | 1994-06-07 | Pall Corporation | Filtration system |
GB2234458A (en) * | 1989-08-01 | 1991-02-06 | Stephen Howarth | Chuck with countersinking teeth |
GB2241182A (en) * | 1990-01-26 | 1991-08-28 | Jeffrey Gordon Roe | Drill chuck with countersinking jaws |
DE9004316U1 (de) * | 1990-04-14 | 1990-07-19 | Joh. & Ernst Link GmbH & Co KG, 7000 Stuttgart | Vorrichtung zum Bohren und Senken von Werkstücken |
DE4138804A1 (de) * | 1991-06-29 | 1993-05-27 | Demmelmaier Eduard | Integrierte senker zur herstellung entgrateter bzw. angesenkter bohrungen in einem arbeitsgang |
GB2263654A (en) * | 1992-01-31 | 1993-08-04 | James Reginald Crispin | Chuck having jaws with countersinking surfaces |
-
1993
- 1993-09-16 DE DE4331453A patent/DE4331453A1/de not_active Withdrawn
-
1994
- 1994-08-31 WO PCT/EP1994/002882 patent/WO1995007787A1/de not_active Application Discontinuation
- 1994-08-31 EP EP94926911A patent/EP0719196A1/de not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR601035A (fr) * | 1925-07-10 | 1926-02-20 | Perfectionnements aux mandrins porte-forets, ayant pour but de permettre, dans une seule opération, le perçage et le fraisage des trous, et, en outre, le réglage des forets à longueur voulue | |
EP0054774A2 (de) * | 1980-12-20 | 1982-06-30 | Otto Zettl | Spannfutter |
WO1990004474A1 (de) * | 1988-10-17 | 1990-05-03 | Mas Maschinenbau Ag | Bohr-/faswerkzeug |
DE9206148U1 (de) * | 1992-05-07 | 1992-07-30 | Sassex Werkzeug GmbH & Co. KG, 4800 Bielefeld | Kombinationswerkzeug |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7942616B2 (en) | 2002-08-16 | 2011-05-17 | Allied Machine & Engineering Corp. | Drilling tool and method for producing port seals |
WO2005002767A1 (en) * | 2003-07-03 | 2005-01-13 | Seco Tools Ab | Tool for chip removing machining with adjustable countersink |
US7131798B2 (en) | 2003-07-03 | 2006-11-07 | Seco Tools Ab | Countersink for chip removing machining tool |
CN100393460C (zh) * | 2003-07-03 | 2008-06-11 | 山高刀具公司 | 具有可调节埋头钻的去屑加工刀具 |
CZ301640B6 (cs) * | 2003-07-03 | 2010-05-12 | Seco Tools Ab | Kuželový záhlubník a nástroj pro trískové obrábení s nastavitelným kuželovým záhlubníkem |
US7632050B2 (en) * | 2003-08-15 | 2009-12-15 | Allied Machine & Engineering Corp. | Drilling tool and method for producing port seals |
US7387461B2 (en) * | 2004-05-11 | 2008-06-17 | Captio Corporation | Binder having compartment with slotted access |
DE102006016290C5 (de) | 2006-04-06 | 2022-02-17 | Gühring KG | Mehrteiliges Schaftwerkzeug, insbesondere Feinbearbeitungswerkzeug |
IT201700030700A1 (it) * | 2017-03-21 | 2018-09-21 | Walter Tosto S P A | Punta multifunzione. |
WO2018173086A1 (en) * | 2017-03-21 | 2018-09-27 | Walter Tosto S.P.A. | Multifunction tip |
Also Published As
Publication number | Publication date |
---|---|
DE4331453A1 (de) | 1995-03-23 |
EP0719196A1 (de) | 1996-07-03 |
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