WO2010003673A2 - Outil - Google Patents

Outil Download PDF

Info

Publication number
WO2010003673A2
WO2010003673A2 PCT/EP2009/004989 EP2009004989W WO2010003673A2 WO 2010003673 A2 WO2010003673 A2 WO 2010003673A2 EP 2009004989 W EP2009004989 W EP 2009004989W WO 2010003673 A2 WO2010003673 A2 WO 2010003673A2
Authority
WO
WIPO (PCT)
Prior art keywords
tool
cone
holding
tool head
page
Prior art date
Application number
PCT/EP2009/004989
Other languages
German (de)
English (en)
Other versions
WO2010003673A3 (fr
Inventor
Hermann Sauer
Hans-Jörg PUCHER
Original Assignee
Sauer Ultrasonic 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 Sauer Ultrasonic Gmbh filed Critical Sauer Ultrasonic Gmbh
Priority to EP09777075A priority Critical patent/EP2323789A2/fr
Publication of WO2010003673A2 publication Critical patent/WO2010003673A2/fr
Publication of WO2010003673A3 publication Critical patent/WO2010003673A3/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
    • B23B31/11—Retention by threaded connection
    • 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
    • B23B31/006—Conical shanks of tools
    • 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
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • 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
    • B23B2231/20—Collet chucks
    • B23B2231/201—Operating surfaces of collets, i.e. the surface of the collet acted on by the operating means
    • B23B2231/2021—Operating surfaces of collets, i.e. the surface of the collet acted on by the operating means comprising two different cones
    • 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
    • B23B2231/24—Cooling or lubrication means

Definitions

  • the invention relates to a tool according to the preamble of the independent claim.
  • the invention relates to a tool which can be clamped manually or automatically in a machine tool, so that it can be exchanged for other tools.
  • the machine tool may generally be a CNC machine for more or less automatic operation. It may in particular be a drilling, milling, turning or grinding machine. It may be an "ultrasonic machine" in the sense that the conventional translational or rotational relative movement between the workpiece and tool is superimposed on a high-frequency oscillating motion.
  • Fig. Id schematically shows a machine tool 100 in which the invention can be used. It has a machine frame 101, which is comparatively stable and torsionally stiff against static and dynamic stresses.
  • 102 denotes a workpiece table on which a workpiece 199 is clamped for machining by a tool 109a.
  • 103 denotes one or more translatory or rotary actuation axes, by means of which the workpiece table 102 can be adjusted relative to the machine frame 101 in its translational position and in its angular position.
  • the setting can be electronically controlled or regulated and thus also selected.
  • Page 2
  • 104 symbolizes one or more rigid arms which ultimately hold a tool 109a opposite the machine frame 101.
  • 105 once again designates one or more translatory and / or rotatory axes which serve to displace the tool 109a relative to the machine frame 101 along one or more translatory or rotary axes.
  • 107a and 107b designates one or more actuators, with which a tool can be driven, in particular can be set in rotary motion, for example in a drill or a milling cutter.
  • actuators 107a, 107b may be provided, for example a rotary drive 107a for continuously rotating rotary drive and an oscillating drive 107b for reversible movements of more or less high frequencies.
  • the frequencies here can be in the Hz or kHz range, for example above 100 Hz or above 1 kHz or above 10,000 Hz or above 20.0.00 Hz.
  • the oscillation can be a rotational or a translatory oscillation.
  • the tool 109a is driven with the overall resulting movement and then acts on the workpiece 199.
  • Page 3 is standardized, automatically operable interface
  • HO refers to a tool press' gmagazin, the various tools 109b ... 109e possibly together with actuators 107, z. B. a vibratory drive 107b, holds. It can automatically be approached by machine, so that a tool can optionally be replaced automatically with associated actuator 107b at the interface 106.
  • 108 denotes a conventional tool clamping. By means of the tool clamping 108, the tool 109 can be clamped non-positively with the actuator 107, so that the movement defined by the actuator 107 can also be passed on to the tool 109 under load.
  • the 111 generally symbolizes an electronic controller connected to incoming and outgoing connections 112 to the machine and other components.
  • the links 112 may be electrical and electronic connects fertilize for electrical sensors and actuators ⁇ .His.
  • pneumatics and hydraulics can be provided.
  • FIGS. 1a and 1b show a collet in side view and in section.
  • Fig. Ic shows the clamping of the collet.
  • the figures are not drawn to scale with respect to each other.
  • 12 denotes a through hole whose diameter in the relaxed state of the collet minor page 4
  • FIGS. 1a and 1b show that the outer surface 4 of the collet is conically shaped in the z-direction. Distributed over the circumference, a plurality of longitudinally running slots 9a, 9b, 9c, ... are provided, which run in the radial direction to the through hole 12. They cause the individual claws 8a, 8b, 8c, ... of the collet to have a certain elasticity in the radial direction.
  • the collet of Fig. Ia has two cone-like surfaces 4 and 5, which are constructed qualitatively the same, but the (imaginary) tips of the respective cone point away from each other and show the thick ends to each other. Also, the surface 5 is that of a cone shell, and also it has the said slots, which give the resulting claw a certain desired elasticity in radial . Give direction.
  • Fig. Ic shows a clamping for the collet 1.
  • the clamping has a cavity 11 which is substantially positive fit to the outer shape of the collet in the tensioned state.
  • the clamping has a receptacle 2 and a union nut 3, which can be screwed together by a thread 10 with each other.
  • the collet 1 is located in the cavity 11 of the receptacle 2, and the union nut 3 is located relatively far to the right in the drawing. page 5
  • the tool holder 108 is connected to the actuator 107, so that the movement generated by the actuator 107 is transmitted to the tool 109 via the fixed clamping of the tool.
  • the collet chuck described has significant disadvantages. Because of the radial
  • Slits 9 is the clamping just compared to axial, radial and torsional vibrations comparatively soft and yielding, so that the high-frequency vibration energy can be insufficiently coupled into the tool.
  • the slots lead to a complex geometry, which in turn leads to complex vibration and resonance properties of the clamping, so that unwanted page 6
  • the object of the invention is to provide a tool that allows a particularly improved for vibration excitation coupling with a machine tool drive.
  • a tool according to the invention has a tool head for machining a workpiece or a receptacle for this and an associated holding area for holding the tool in an actuator of the machine tool.
  • the holding region has a first and preferably also a second outer surface, which are formed as first and second abutment surfaces which at least partially follow a first or second lateral surface of a first or second cone, wherein the first cone in the direction of
  • Tool head tapers and possibly the second cone tapers in the direction away from the tool head.
  • the holding area is comparatively solid and rigid compared to the known collet.
  • a desirably flexible construction is not provided.
  • the holding area is part of the tool and connected to it.
  • the compound may be insoluble, for example by soldering, gluing or welding or by from the beginning one-piece production. But the connection can also be solved, for example by screwing.
  • the outer surface of the holding portion has no or at least no deep longitudinal (z-direction) running slots.
  • the outer surface is preferably continuous on a corresponding surface of a clamping.
  • the outer surface may be continuously applied to the corresponding surface of the restraint.
  • a groove may, for example, extend in the circumferential direction. It can also be flat grooves in the longitudinal direction (z-direction).
  • the clamping of the tool is done by the holding area of the tool is inserted into the receptacle of the machine tool and then the union nut is screwed.
  • the union nut can be permanently attached to the tool or, if necessary, over the tool head to the holding area or until page 8
  • Fig. 2 shows an embodiment of the invention
  • Fig. 3 shows a part of a machine tool with the
  • Fig. 2 shows a schematic side view of a tool 20.
  • the upper part and the right part are a simple plan view, while the lower part is a sectional view.
  • the tool 20 of Fig. 2 corresponds functionally to one of the tools 109a to 109e as shown in Fig. Id. It is, however, structured differently.
  • Fig. Page 9 shows a schematic side view of a tool 20.
  • the upper part and the right part are a simple plan view, while the lower part is a sectional view.
  • the tool 20 of Fig. 2 corresponds functionally to one of the tools 109a to 109e as shown in Fig. Id. It is, however, structured differently.
  • Fig. Page 9 In Fig. Page 9
  • the right side is the workpiece side end of the tool 20.
  • the left side is the machine side end.
  • the tool 20 has a tool head 19, 28 and a holding portion 17. Between these may be a more or less clearly distinguishable shaft 18.
  • the shaft 18 may in turn have a releasable coupling / connection between the tool head 19/28 and holding portion 17.
  • the tool head 28 can be designed in a known manner. It may be a tool with geometrically determined or undetermined cutting edge, such.
  • the tool 20 may be constructed substantially rotationally symmetrical, wherein the rotation axis would be the longitudinal axis 29 in the z-direction.
  • the holding area 17 serves for the fixed, non-positive holding of the tool in the machine actuator, which, as already said, a more or less conventional rotary drive a spindle and possibly also a high-frequency oscillating drive ("ultrasonic", translational oscillation and / or rotational oscillation longitudinal or around z-axis).
  • the tool head can be permanently and non-releasably connected to the holding region 17, for example by gluing or soldering or welding in a shaft 27 into the corresponding opening of the holding region 17, or by making the overall structure in one piece.
  • the connection Page 10
  • a shaft 27 of the tool head 28 is screwed into a corresponding thread in the holding area, or by, as already said, again a releasable quick connector is provided.
  • the outer contour or outer surface of the holding region can follow completely or partially essential surfaces of a standardized receptacle.
  • the standardized recording can be that according to DIN ISO 15488, as shown in FIG. 1c.
  • the holding region 17 has a first outer surface 21 formed as a first abutment surface, which at least in regions flatly follows a first lateral surface 7 of a first cone, which tapers in the direction of the tool head.
  • the outer surface 21 has no deep slots and, in particular in the circumferential direction, can rest continuously against the complementary surface 7, as indicated on the union nut 3 in FIG. 1c.
  • flat grooves or slots in the longitudinal direction may be provided, wherein "flat" may be a depth of at most 10% of the maximum diameter of the holding portion.
  • the holding region 17 may have a second outer surface 22 formed as a second abutment surface, which at least partially follows a second lateral surface 5 of a second cone, which tapers away in the direction away from the tool head.
  • the thick end of the second cone faces the thick end of the first cone.
  • second outer surface 22 of the tool is thus wholly or partially complementary to the inner surface 6 of the receptacle 2 of FIG. Ic formed. In particular, it has no or only flat slots which would run in the z-direction.
  • the holding area is mechanically stiffer on the one hand and can therefore transmit high-frequency oscillations more effectively in particular.
  • the body of the holding region 17 is mechanically less complex, so that the system response to excitation is less surprising. In particular, possibly occurring resonances are more clearly predictable and thus avoidable in terms of design.
  • the first outer surface 21 and / or the second outer surface 22 may, but need not fully follow the respective complementary cone shell surfaces of the associated receptacle. They may have circumferential grooves, and they may also have holes or flat grooves running in the longitudinal direction (z-direction).
  • the outer surfaces 21 and / or 22 may take in the direction of the cone height (z-direction) only a part of the surface of the associated recording, z. page 12
  • the holding region 17 may comprise further constructional elements, for example a more or less cylindrical continuation 23 proceeding from the first outer surface 21 in the direction of the tool head 19, as shown in FIG ,
  • the outer diameter is smaller than the inner diameter of the opening of the union nut 3.
  • the tool may have a tool head 19, 28 or instead a coupling or receptacle or a quick connector for a tool head. This can be advantageous in particular for small tool heads with low masses and reaction forces.
  • the tool may have a coolant guide only partially shown in FIG.
  • the coolant guide may be rosinvariant. It may have a concentric to the axis 29 extending channel 25 which opens into the bore 26 which receives the shaft 27.
  • the shaft 27 (not shown in FIG. 2) in turn may have a coolant channel which tapers toward the tool head 28.
  • coolant outlets can be provided Page 13
  • Fig. 3 shows a part of a machine tool, which corresponds in Fig. Id approximately to the reference lines 106, 107, 108 and 109. With 17, 18 and 19, the parts of the tool 20 already shown in Fig. 2 are designated.
  • the tool is inserted into a receptacle 2, 3 and fixed there.
  • the receptacle 2, 3 is, as shown in Fig. Ic, formed.
  • the recording 2, 3 is viewed to the left with Aktorik in connection.
  • the actuator system may have an ultrasonic vibration generator 31, which generates a torsional vibration about the z-axis and / or a translational vibration along the z-axis, which then transmits via the holding region 17 to the tool head.
  • the oscillating unit To the left, the oscillating unit
  • a rotary drive 32 is connected to a rotary drive 32. It can be - this is a conventional spindle.
  • the tool and in particular the tool head then experiences the superimposed movement of continuous rotary drive of the spindle 32 and reversible drive of the oscillating drive 31.
  • the overall structure may include a coolant guide, which supplies coolant from the machine frame through the spindle 32 and the oscillating drive 31 to the tool 20, where it is guided to the tool head as described.
  • Page 14

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Electric Cable Installation (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention concerne un outil (20) présentant une tête d'outil (19, 28) pour l'usinage d'une pièce, ou un logement pour cette tête, et une zone de retenue (17), pour le maintien de l'outil, associée à la tête de l'outil, dans un dispositif d'actionnement (2, 31). L'invention est caractérisée en ce que la zone d'actionnement présente une première surface extérieure (21) configurée comme première surface d'appui qui suit, au moins de manière partiellement plane, une première surface latérale (7) d'un premier cône qui s'amincit en direction de la tête d'outil.
PCT/EP2009/004989 2008-07-09 2009-07-09 Outil WO2010003673A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09777075A EP2323789A2 (fr) 2008-07-09 2009-07-09 Outil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008032280.6A DE102008032280B4 (de) 2008-07-09 2008-07-09 Werkzeug
DE102008032280.6 2008-07-09

Publications (2)

Publication Number Publication Date
WO2010003673A2 true WO2010003673A2 (fr) 2010-01-14
WO2010003673A3 WO2010003673A3 (fr) 2010-07-29

Family

ID=41254329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/004989 WO2010003673A2 (fr) 2008-07-09 2009-07-09 Outil

Country Status (3)

Country Link
EP (1) EP2323789A2 (fr)
DE (2) DE102008032280B4 (fr)
WO (1) WO2010003673A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048636B4 (de) * 2010-10-15 2017-11-16 Sauer Ultrasonic Gmbh Werkzeugmaschine und Verfahren zur Bearbeitung eines Werkstücks mit einem Werkzeug
DE102011077568B4 (de) 2011-06-15 2023-12-07 Dmg Mori Ultrasonic Lasertec Gmbh Werkzeugmaschine, Werkstückbearbeitungsverfahren
DE202017007103U1 (de) * 2017-02-14 2019-07-15 Leitz Gmbh & Co. Kg Werkzeug zur spanabhebenden Bearbeitung von Werkstücken

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482024C (de) * 1929-09-05 Otto Max Mueller Spannfutter
JP2002219606A (ja) * 2001-01-22 2002-08-06 Masao Murakawa 超音波ミリング装置
DE10137055A1 (de) * 2001-07-28 2003-02-20 Hermann Sauer Gmbh & Co Kg Kupplungsvorrichtung für das Verbinden einer Spindel mit einem Werkzeughalter
DE102007043890A1 (de) * 2006-10-26 2008-05-21 Franz Haimer Maschinenbau Kg Spannvorrichtung sowie Spannzange, Grundkörper und Spannschlüssel dafür

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2359286A (en) * 1944-10-03 Spring collet toolholder
DE3823349A1 (de) * 1988-07-09 1990-01-11 Simon Nann Kg Fabrik Fuer Span Spannfutter fuer werkzeuge mit innerer kuehlmittelzufuhr
EP0820826A1 (fr) * 1996-07-25 1998-01-28 Fraisa Sa Douille de ralongement pour outil de travail

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE482024C (de) * 1929-09-05 Otto Max Mueller Spannfutter
JP2002219606A (ja) * 2001-01-22 2002-08-06 Masao Murakawa 超音波ミリング装置
DE10137055A1 (de) * 2001-07-28 2003-02-20 Hermann Sauer Gmbh & Co Kg Kupplungsvorrichtung für das Verbinden einer Spindel mit einem Werkzeughalter
DE102007043890A1 (de) * 2006-10-26 2008-05-21 Franz Haimer Maschinenbau Kg Spannvorrichtung sowie Spannzange, Grundkörper und Spannschlüssel dafür

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2323789A2 *

Also Published As

Publication number Publication date
DE102008032280B4 (de) 2017-03-23
EP2323789A2 (fr) 2011-05-25
DE102008032280A1 (de) 2010-01-14
DE202008017520U1 (de) 2009-10-29
WO2010003673A3 (fr) 2010-07-29

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