WO2018033433A1 - Raccordement d'outil pour machine-outil - Google Patents

Raccordement d'outil pour machine-outil Download PDF

Info

Publication number
WO2018033433A1
WO2018033433A1 PCT/EP2017/070055 EP2017070055W WO2018033433A1 WO 2018033433 A1 WO2018033433 A1 WO 2018033433A1 EP 2017070055 W EP2017070055 W EP 2017070055W WO 2018033433 A1 WO2018033433 A1 WO 2018033433A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
tool
hollow shaft
tool shank
sleeve
Prior art date
Application number
PCT/EP2017/070055
Other languages
German (de)
English (en)
Inventor
Armin Eisenhardt
Boris Richt
Christian Kreb
Original Assignee
C. & E. Fein Gmbh
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 C. & E. Fein Gmbh filed Critical C. & E. Fein Gmbh
Publication of WO2018033433A1 publication Critical patent/WO2018033433A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/1071—Retention by balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
    • B23B31/1078—Retention by wedges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/04—Adapters

Definitions

  • the invention relates to a tool holder for a machine tool, in particular a core drill, with a hollow shaft, on which an interface for coupling with a rotary drive of a machine tool is formed, and which is designed to receive a tool with a tool shank.
  • a first tool receiving system which is known under the name "Weldon” or "Nitto Kohki"
  • At least one flat on the tool shaft is provided, by means of which a positive entrainment takes place on the tool holder.
  • a core drill with a Weldon holder can be seen from EP 1 147 839 A2.
  • a second tool receiving system by the applicant under the name
  • Quadratln is offered, used for torque transmission, a ball which engages in an associated recess on the tool shank.
  • a core drill with one Quickln recording has become known through use by the applicant and is known from the catalog of the applicant FEIN Price Catalog 04/2015.
  • the two tool clamping systems also differ in that the tool shank according to Weldon or Nitto Kohki has a slightly larger diameter than the tool shank according to Quickln.
  • the present invention seeks to provide a tool holder for a machine tool, in particular a core drilling machine, in which both a clamping of tools with a tool shank with Quickln recording and a clamping of tools with a tool shank with Weldon or Nitto Kohki recording is possible without the need to retrofit the machine.
  • a tool holder for a machine tool in particular a core drilling machine, with a hollow shaft, on which an interface for coupling with a rotary drive of a machine tool is formed, and which is designed to receive a first tool with a first tool shank, and which is designed to receive at least one second tool with a second tool shank, which has a larger cross-section than the first tool shank, wherein the first tool shank is drivable by means of at least one recess, into which a ball is engageable, and wherein the second tool shank by means of a Flattening is driven, to which a locking body is articulated, wherein on the hollow shaft a clamping sleeve is rotatably received, wherein between the clamping sleeve and the hollow shaft, a first locking sleeve and a second locking sleeve are rotatably disposed relative to the clamping sleeve se are held rotatably by a certain angular amount, wherein
  • the object of the invention is achieved in this way.
  • both a clamping of tools with Quickln recording and a clamping of tools with Weldon recording or Nitto Kohki recording is possible.
  • two locking sleeves are biased relative to a clamping sleeve in the direction of rotation, which is automatically when inserting a tool shank with Quickln a lock with a locking sleeve by engaging a ball or when inserting a tool shank with Weldon a lock with the other locking sleeve by advancing a locking body a flattening of the tool shank takes place.
  • Clamping sleeve received a bolt which allows in the insertion axial insertion of a tool shank into the hollow shaft, and wherein the bolt is unlocked upon insertion of a tool shank and the two locking sleeves releases into an activated position in which, depending on the type of imported tool shank either twisted the first or the second locking sleeve and locked with the tool shank.
  • the two locking sleeves are provided opposite the clamping sleeve in the direction of rotation. tensioned, but locked, and wherein the bolt is axially displaced upon insertion of a tool shank from the insertion position to the activated position in which the bias of the locking sleeves relative to the clamping sleeve acts to cause a rotation of either the first or the second locking sleeve.
  • a torsion spring is also for
  • the torsion spring consists of two spring elements, from a first
  • Clamping sleeve are biased in the locking position.
  • Hollow shaft movable control ball provided, which cooperates with the bolt to move it upon insertion of a tool shank from the insertion position to the axially shifted, activated position.
  • control of the bolt is simply derived from an axial insertion movement of a tool shank into the hollow shaft.
  • the bolt is guided on the hollow shaft axially movable and biased in the insertion position, preferably by means of a spring-loaded bolt.
  • the bolt engages in the insertion position in a locking pocket of the clamping sleeve and locks the clamping sleeve in the insertion position in the direction of rotation.
  • the bolt is released in the activated position from the locking pocket of the clamping sleeve and allows a rotation of the locking sleeves relative to the clamping sleeve under the action of the bias of the torsion spring.
  • Locking position ensures upon insertion of a tool shank.
  • a plurality of first slide and a plurality of second slide are arranged in the hollow shaft axially spaced from each other, wherein the slides are arranged radially movable within the hollow shaft between a retracted position in which they at least partially outwardly evading associated pockets, and an activated position in which they protrude inwardly beyond the inner contour of the hollow shaft to abut an associated first tool shank of an inserted first tool.
  • the pockets are in the second
  • Locking sleeve provided and formed for receiving a respective projection of an associated slider in the retracted position. Furthermore, the Pressed by twisting the second locking sleeve by a certain angle relative to the hollow shaft from the associated pockets with their projections and are applied to the first tool shank.
  • the locking body on a projection which is movable by a relative rotation between the hollow shaft and the first locking sleeve out of the pocket inwardly to engage the locking body to the flattening on a second tool shank.
  • the locking body is designed as a slide, which has a flattening, which is associated with the flattening of a second tool shank.
  • the two locking sleeves are added to the clamping sleeve by a certain angular amount, preferably about 25 ° to 35 °, rotatable relative to the clamping sleeve.
  • a projection may be provided on each of the clamping sleeve, for example, which engages in an associated recess on the first and second locking sleeve.
  • a central spring is held in the hollow shaft, by means of which an inserted tool shank is acted upon axially outwards.
  • Fig. 1 is a side perspective view of a tool holder according to the invention
  • FIG. 2 shows a longitudinal section through the tool holder according to FIG. 1;
  • FIG. 3 shows a longitudinal section through the tool holder according to FIG. 2, but in a twisted cutting position
  • FIG. 4 shows a further longitudinal section through the tool holder according to FIG. 2 along a further sectional plane;
  • Fig. 5 is a section through the tool holder of FIG. 2 along the line
  • Fig. 6 is a section through the tool holder of FIG. 2 along the line
  • Fig. 7 is a section through the tool holder of FIG. 2 along the line
  • Fig. 8 is a section through the tool holder of FIG. 2 along the line
  • Fig. 4a shows a section through the tool holder of FIG. 4, but at
  • FIG. 5a-8a sections through the tool holder of FIG. 5-8, but after
  • FIG. 4b shows a longitudinal section through the tool shank according to FIG. 4, but according to FIG.
  • FIG. 9 shows a partially cutaway perspective view of the tool holder according to the invention.
  • FIG. 10 is a view of the tool holder of FIG. 9, but after further
  • Figure 1 1 is a side perspective view of the tool holder of Figure 9, but after rotation through approximately 180 ° ..;
  • FIG. 12 shows a perspective side view of a first tool with Quickln recording
  • Figure 13 is a perspective view of a tool with Weldon recording.
  • 14a, b is a plan view and a perspective view of the partially cut-away tool holder for illustrating the fixing of the bolt in an associated pocket;
  • FIG. 15a, b is a plan view and a perspective view of FIG. 14a, 14b,
  • Fig. 1 shows a tool holder according to the invention for a machine tool, which is designated overall by the numeral 10.
  • the tool holder 10 has a hollow shaft 12, at one end of an interface 14 in the form of a two-sided flattening is provided for connection to a drive.
  • a clamping sleeve 16 is provided at the opposite end, i. after installation as in a core drilling machine, at the outer end.
  • a first locking sleeve 18 and a second locking sleeve 20 are rotatably received, wherein the first locking sleeve 18, the second locking sleeve 20 coaxially encloses in a partial area. Both the first locking sleeve 18 and the second locking sleeve 20 are enclosed by the clamping sleeve 16, which also surrounds the extension 13 partially.
  • a central spring 24 is provided, which is supported on an inner flange 22 which rests on an intermediate flange 21 which is biased against an inner shoulder 17 with a second spring 23 and is secured to the outside by a securing ring 29.
  • the tool holder 10 according to the invention is designed to be both a
  • first slides 28 are radially movably received in the hollow shaft 12 and axially spaced therefrom a plurality of second slides 30, which are arranged shortly before the outer end of the hollow shaft 12.
  • first slider 28 and four second slider 30 are arranged shortly before the outer end of the hollow shaft 12.
  • a first tool 76 with a first tool shank 64 with Quickln receptacle is shown by way of example in FIG. 12.
  • a ball which is engaged in an associated recess 65 of the tool shank 64.
  • a second recess for receiving a second ball.
  • a second tool 78 with a second tool shaft 66 with Weldon receiving is exemplified in FIG.
  • the tool shank 66 has three flattenings 54 at angular intervals of 120 ° relative to one another.
  • a first tool 76 is introduced with a first tool shaft 64 with Quickln recording in the receiving opening 19, so by means of the first slide 28 and the second slider 30 ensures a diameter compensation, as will be explained in more detail below.
  • torsion spring a total of 25 designated torsion spring is still recognizable, by means of which the first and the second locking sleeve 18, 20 relative to the hollow shaft 12 are biased in the direction of rotation.
  • Fig. 3 shows a longitudinal section through the tool holder 10 of FIG. 2, but with a changed cutting plane.
  • a locking body 32 is received in the hollow shaft 12, which is radially movable by a certain amount. This locking body 32 is used for locking when a second tool 78 is inserted with a second tool shaft 66 with a Weldon recording, as will be explained below.
  • FIG. 4 shows a further longitudinal section through the tool holder 10 according to the invention with a further modified cutting plane.
  • two balls 34 can be seen, which are held in recesses of the hollow shaft 12 and can partially escape laterally into associated pockets 48 on the second locking sleeve 20.
  • an approximately L-shaped latch 36 can be seen, which is received axially displaceable on one side in an associated recess of the hollow shaft 12.
  • a control ball 38 which protrudes slightly inward over the inner contour of the receiving opening 19 for insertion of a tool shank.
  • the latch 36 is biased at its inner end by a spring-loaded bolt 42 which engages in an associated recess 40 at the axial end of the bolt 36 outwardly against the control ball 38. As can be seen from Figures 14a and 14b, the latch 36 engages in a particular
  • 5 to 8 show cross sections through the tool holder according to FIG. 2 along the lines V-V to VIII-VIII, without a tool shank being used.
  • Fig. 5 shows the four in the hollow shaft 12 radially movable slide 30. At his
  • each of the slide 30 has a small projection 45 which, depending on the angular position between the second locking sleeve 20 in an associated pocket 44 on the second locking sleeve 20 can escape.
  • the second slide 30 can thus escape in the angular position shown in Fig. 5 with their projections 45 in the pockets 44 radially, so that the slide 30 does not protrude beyond the inner contour of the receiving opening 19 also.
  • the second slider 30 migrate out of the pockets 44 and thus may protrude slightly beyond the inner contour of the receiving opening 19 also.
  • Fig. 5 also still a projection 46 can be seen, which protrudes from the clamping sleeve 16 from the second locking sleeve 20 and protrudes into an associated recess 48 of the second locking sleeve 20. This will be a certain change the relative position between the clamping sleeve 16 and the second locking sleeve 20th
  • Fig. 6 shows the two balls 34 which are received radially movable within the hollow shaft 12 and can escape laterally in associated pockets 48 on the second locking sleeve 20. These balls 34 serve to lock with a first tool shank 64 with Quickln recording. If there is a relative rotation between the second locking sleeve 20 and the hollow shaft 12, the balls 34 are pushed out of the pockets 48 inwards and can then engage in a corresponding position in the associated recesses of a Quickln tool shank 64.
  • the section of FIG. 7 shows the locking body 32, which is provided for locking with a second tool shaft 66 with Weldon recording.
  • the locking body 32 is designed as a slide which is received radially movable within an associated recess 59 of the hollow shaft 12.
  • the locking body 32 On its outside, the locking body 32 has a projection 58, which can deflect radially in the position shown in FIG. 7 into an associated pocket 60 on the first locking sleeve 18. In the position according to FIG. 7, the inner flattening 56 thus does not protrude beyond the inner contour of the receiving opening 19.
  • Fig. 7 also still a projection 50 can be seen, which from the clamping sleeve 16 also in
  • FIG. 8 shows the cross section along the line VIII-VIII according to FIG. 2. From this, the first slides 28 can be seen, which in turn protrude outwards into corresponding pockets 62 of the second locking sleeve 20 with corresponding projections 63. Furthermore, the control ball 38 can be seen in this sectional plane.
  • a first tool 76 is inserted with a first tool shank 64 with Quickln recording in the receiving opening 19 of FIG. 4 in the insertion of the bolt 36 in which the two locking sleeves 18, 20 are biased against the clamping sleeve 16 in the direction of rotation, then yields Starting from the insertion position shown in Fig. 4, a release of the bolt 36 via the control ball 38.
  • the bolt 36 thus passes from the insertion position into the activated position, in which the torsion spring 25 is now a relative rotation between the locking sleeves 18, 20 and the clamping sleeve 16 allowed.
  • the first sliders 28 are pushed out of their associated pockets 62 and abut against the inner surface of the tool shank 64 so that it is centered.
  • the balls 34 are pushed out of the associated pockets 48 and protrude inwardly and engage the associated recesses 65 on the tool shank 64 to lock it.
  • the bolt 36 is thereby displaced axially via the control ball 38 and thus reaches its activated position, in which the action of the torsion spring 25 generates a prestress between the locking sleeves 18, 20 and the hollow shaft 12.
  • the first locking sleeve 18 rotates relative to the hollow shaft 12, so that according to FIG. 7b, the locking body 32 moves out of the pocket 60 and is pressed radially inward until the flat 56 rests against a flattening 54 of the second tool shaft 66 and thus the second tool shank 66 is locked in this position.
  • first slides 28 according to FIG. 8b with their projections are still located in the associated pockets 62.
  • the torsion spring 25 consists of two spring elements 26, 27.
  • a first spring element 26 engages between the hollow shaft 12 and the second locking sleeve 20, as can be seen from Figs. 9 and 10.
  • a first end 68 of the first spring element 26 lies in an associated recess 70 of the hollow shaft 12, while a second end 72 of the first spring element 26 is located in an associated recess 74 of the second locking sleeve 20.
  • a second spring element 27 engages with a first end 69 in an associated recess 71 of the hollow shaft 12.
  • a second end 73 of the second spring element 27 engages in an associated recess 75 of the first locking sleeve 18.
  • the tool holder according to the invention makes it possible to selectively introduce a first tool with a Quickln receptacle or a second tool with a Weldon receptacle or Nitto-Kohki receptacle into the receptacle opening of the hollow shaft, whereupon a locking takes place automatically.
  • the clamping sleeve is rotated in the opposite direction, whereby the tool is released and is ejected under the action of the bias of the springs 23, 24.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

L'invention concerne un raccordement d'outil pour machine-outil, notamment une sondeuse-carotteuse, comprenant une tige creuse (12), sur laquelle est formée une interface (14) destinée au couplage avec un mécanisme d'entraînement en rotation d'une machine-outil. Le raccordement d'outil (10) permet de recevoir et de verrouiller tant une première queue d'outil (64) destinée au verrouillage au moyen d'une bille (34) qui s'insère dans un creux associé pratiqué dans la queue d'outil, qu'une deuxième queue d'outil (66) destinée au verrouillage au moyen d'une pièce plate formée sur la queue d'outil (66). Le verrouillage s'effectue automatiquement après insertion d'une queue d'outil (64, 66) dans le raccordement d'outil (10).
PCT/EP2017/070055 2016-08-15 2017-08-08 Raccordement d'outil pour machine-outil WO2018033433A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016115094.0A DE102016115094A1 (de) 2016-08-15 2016-08-15 Werkzeugaufnahme für eine Werkzeugmaschine
DE102016115094.0 2016-08-15

Publications (1)

Publication Number Publication Date
WO2018033433A1 true WO2018033433A1 (fr) 2018-02-22

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Application Number Title Priority Date Filing Date
PCT/EP2017/070055 WO2018033433A1 (fr) 2016-08-15 2017-08-08 Raccordement d'outil pour machine-outil

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DE (1) DE102016115094A1 (fr)
WO (1) WO2018033433A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111502554A (zh) * 2019-01-28 2020-08-07 C.&E.泛音有限公司 用于机床的刀架

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019211442A1 (de) * 2019-07-31 2021-02-04 Robert Bosch Gmbh Werkzeugmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426760A1 (de) * 1973-06-04 1975-01-02 Eminentverktyg Ab Einsatzbuechse mit schnellwechselspannpatrone fuer werkzeuge in werkzeugmaschinen
EP1147839A2 (fr) 2000-01-03 2001-10-24 Alfred Raith GmbH Porte outil à debranchement rapide
DE202006010636U1 (de) * 2006-07-10 2006-08-31 Hsin Ying Enterprise Co., Ltd., Dadu Shiang Halter für ein Doppelfunktions-Drehwerkzeug

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU670373B2 (en) * 1993-06-30 1996-07-11 Nitto Kohki Co., Ltd. Annular cutter connecting apparatus and annular cutter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426760A1 (de) * 1973-06-04 1975-01-02 Eminentverktyg Ab Einsatzbuechse mit schnellwechselspannpatrone fuer werkzeuge in werkzeugmaschinen
EP1147839A2 (fr) 2000-01-03 2001-10-24 Alfred Raith GmbH Porte outil à debranchement rapide
DE202006010636U1 (de) * 2006-07-10 2006-08-31 Hsin Ying Enterprise Co., Ltd., Dadu Shiang Halter für ein Doppelfunktions-Drehwerkzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111502554A (zh) * 2019-01-28 2020-08-07 C.&E.泛音有限公司 用于机床的刀架

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Publication number Publication date
DE102016115094A1 (de) 2018-02-15

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