EP1326736B1 - Porte-outil pour une machine-outil - Google Patents

Porte-outil pour une machine-outil Download PDF

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Publication number
EP1326736B1
EP1326736B1 EP01964910A EP01964910A EP1326736B1 EP 1326736 B1 EP1326736 B1 EP 1326736B1 EP 01964910 A EP01964910 A EP 01964910A EP 01964910 A EP01964910 A EP 01964910A EP 1326736 B1 EP1326736 B1 EP 1326736B1
Authority
EP
European Patent Office
Prior art keywords
tool
locking
basic body
locating sleeve
tool mounting
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.)
Expired - Lifetime
Application number
EP01964910A
Other languages
German (de)
English (en)
Other versions
EP1326736A1 (fr
Inventor
Otto Baumann
Helmut Heinzelmann
Hardy Schmid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1326736A1 publication Critical patent/EP1326736A1/fr
Application granted granted Critical
Publication of EP1326736B1 publication Critical patent/EP1326736B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17042—Lost motion
    • Y10T279/17094—Sleeve type retainer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17666—Radially reciprocating jaws
    • Y10T279/17692—Moving-cam actuator
    • Y10T279/17743—Reciprocating cam sleeve
    • Y10T279/17752—Ball or roller jaws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/953—Clamping jaws

Definitions

  • the present invention relates to a tool holder for a Flandwerkmaschine with rotating and / or beating drive, wherein the tool holder has a base body with means for receiving a.
  • Tool having a Nutenschaft the main body is equipped with at least one locking mechanism with which the tool is locked in the base body, and an actuator for unlocking the tool is provided.
  • Such a tool holder is z. B. from the DE 197 24 532 A1 or the non-prepublished German application 100 02 749.0 known.
  • the base body has a receiving bore into which the corresponding tool is inserted with its shank and can be fixed therein by means of a locking device.
  • rotary driving webs are arranged, which engage in open at the end of the tool shank grooves to ensure a rotational drive of the tool.
  • the Rotary driving strips in the receiving bore of the body are usually made by broaching or hammering.
  • the invention is therefore based on the object to provide a tool holder of the type mentioned, which is such that it can be produced on the one hand with the least possible effort and on the other hand, the wear occurring therein is minimized.
  • This measure makes it possible to produce the base body from a good machinable steel, but to choose the receiving sleeve as possible a wear-resistant hardened steel.
  • the receiving sleeve can, for. B. by swaging or extrusion or sintering or in Precision casting process made of wear-resistant steel can be produced economically.
  • the receiving sleeve is provided with at least one recess, which z. B. can be produced in a milling operation.
  • At least one rotary driving web is formed in the interior of the receiving sleeve, which engages in a groove on the tool shank.
  • This rotary strut can z. B are formed by extrusion or hammering in the receiving sleeve.
  • a particularly good frictional connection between the receiving sleeve and the base body is achieved in that the receiving sleeve is connected to the main body by brazing.
  • the base body is provided with at least one locking body, which in a shaft end of the Tool existing groove is inserted and held by a locking element in its locking position, which is feasible via the actuating element in a radially releasing the locking body position.
  • the inventive use of a wear-resistant receiving sleeve ensures a high concentricity of the tool in the tool holder.
  • FIG. 1 shows a detail of a cross section through a tool holder 10, the z. B. is arranged on a rotating and / or beating hand tool.
  • This tool holder 10 is used to hold tools with a Nutenschaft.
  • the tool holder 10 has a base body 12, in which a radially displaceable locking body, in the exemplary embodiment, a locking ball 14, is mounted.
  • This locking ball 14 is insertable into a groove on the shaft end of the tool (not shown in the drawing) and is provided by a limited axially movable locking sleeve 16 and a retaining sleeve 18 in their Locking position held.
  • the locking sleeve 16 is loaded via the retaining sleeve 18 with a compression spring 20 in the direction of its blocking position.
  • the compression spring 20 is supported on the machine body 12 on the base body. Also, the locking sleeve 16 is supported on the base body 12.
  • the locking sleeve 16 covers the locking ball 14 radially, and the retaining sleeve 18 secures the locking ball 14 in the axial direction.
  • the locking ball 14 is moved by the shaft end of the tool in a recess 22 of the base body 12 in the insertion direction of the tool.
  • the retaining sleeve 18 is displaced over the locking ball 14 against the compression spring 20, whereby a clearance is created between the locking sleeve 16 and the retaining sleeve 18, in which the locking ball 14 can escape radially outward.
  • the biased compression spring 20 moves the retaining sleeve 18 in its initial position and presses the locking ball 14 in the groove of the tool.
  • an unlocking mechanism which consists of an actuating sleeve 24 which is slidably mounted on the base body 12 in the axial direction.
  • an actuating sleeve 24 which is slidably mounted on the base body 12 in the axial direction.
  • compression spring 20 presses the retaining sleeve 18, the locking sleeve 16, the locking ball 14 and the actuating sleeve 24 in their initial positions.
  • FIG. 1 is still an anvil indicated 30, the machine side protrudes into the base body 12 and serves to put the tool in striking movements.
  • the basic body consists of manufacturing reasons of an easily machinable steel. Since such a steel would not be sufficiently wear-resistant in the receiving area for the tool, a receiving sleeve 34 made of a wear-resistant hard steel is inserted into the base body 12 in a receiving bore 32 provided for this purpose. It can be a steel that has undergone an extra hardening process.
  • the receiving sleeve 34 may, for. B. consist of HSS or 100Cr6.
  • the receiving sleeve 34 At least one rotary driving web 38 is formed, which engages in an existing at the end of the tool shank groove and thus transmits the rotational movement of the base body 12 to a rotational movement of the tool.
  • the receiving sleeve 34 is made of a hard steel with the rotary driving web, the susceptibility to wear, in particular of the rotary driving web, which is exposed to a high mechanical load, greatly reduced.
  • the recess 40 and the rotary driving bar 38 may be prior to the use of the receiving sleeve 34 in the receiving bore 32 of the base body 12 z. B. be made by milling or suitable deformation. However, the recess 40 and the driving bar 38 can also be created only when the receiving sleeve 34 is already soldered into the receiving bore 32. In this case, the recess 22 in the base body 12 and the recess 40 in the receiving sleeve 34 in one operation, for. B. by milling. Also can be made by broaching processes in the already soldered into the receiving bore 32 receiving sleeve 34 subsequently tolerance machining.
  • FIG. 2 is a variant of the embodiment in FIG. 1 shown.
  • Substantially identical components are basically numbered in the described embodiments with the same reference numerals.
  • the description of the exemplary embodiment can be found in FIG. 1 to get expelled. That in the FIG. 2 illustrated embodiment of the tool holder differs from that in the FIG. 1 illustrated embodiment in that the receiving sleeve 34 is provided at its the inlet opening for the tool end facing with a collar 42 which forms an axial stop on a frontal stop surface 44 provided on the base body 12.
  • the receiving sleeve 34 receives a particularly secure axial seat in the base body 12.
  • the stop surface 44 may be provided with a z.
  • radially encircling recess 46 are provided, in which for fixing the collar 42 on the stop surface 44, a brazing material can be introduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Gripping On Spindles (AREA)
  • Jigs For Machine Tools (AREA)
  • Drilling Tools (AREA)

Claims (7)

  1. Porte-outil pour une machine-outil manuelle avec un entraînement rotatif et/ou percuteur, dans lequel le porte-outil (10) présente un corps de base (12) avec des moyens pour recevoir un outil avec une tige rainurée, le corps de base (12) étant muni d'un mécanisme de verrouillage avec lequel l'outil peut être bloqué dans le corps de base (12) et qui comprend un corps de verrouillage déplaçable radialement, en particulier une bille de verrouillage (14), et un élément d'actionnement (24) pour déverrouiller l'outil étant prévu dans le corps de base (12), les moyens pour recevoir l'outil se composant d'une douille de réception (34) insérée dans le corps de base (12), caractérisé en ce que la douille de réception (34) est fabriquée en un matériau plus dur que le corps de base (12) et présente un évidement (40) afin que le corps de verrouillage puisse pénétrer dans une rainure prévue sur la tige rainurée.
  2. Porte-outil selon la revendication 1, caractérisé en ce que la douille de réception (34) se compose d'un acier trempé.
  3. Porte-outil selon la revendication 1, caractérisé en ce qu'au moins une nervure d'entraînement en rotation (38) est formée dans la douille de réception (34), laquelle vient en prise dans une rainure sur la tige de l'outil.
  4. Porte-outil selon la revendication 1, caractérisé en ce que la douille de réception (34) présente à son extrémité tournée vers l'ouverture d'entrée pour l'outil, un épaulement (42) qui forme une butée axiale sur le corps de base (12).
  5. Porte-outil selon la revendication 1, caractérisé en ce que la douille de réception (34) est connectée au corps de base (12) par brasage dur (36).
  6. Porte-outil selon les revendications 1 et 4, caractérisé en ce que le corps de base (12) est pourvu, dans la région d'une surface de butée (44) du côté frontal pour l'épaulement (42) de la douille de réception (34), d'un évidement (46) pour recevoir du matériau de brasage dur.
  7. Porte-outil selon la revendication 1, caractérisé en ce que le corps de base (12) est pourvu d'au moins un corps de verrouillage (14) qui peut être inséré dans une rainure prévue à l'extrémité de la tige de l'outil, et qui est maintenu dans sa position de verrouillage par un élément de blocage (16) qui peut être guidé par le biais de l'élément d'actionnement (24) dans une position libérant radialement le corps de verrouillage (14).
EP01964910A 2000-09-08 2001-08-16 Porte-outil pour une machine-outil Expired - Lifetime EP1326736B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10044387 2000-09-08
DE10044387A DE10044387A1 (de) 2000-09-08 2000-09-08 Werkzeughalterung für eine Handwerkzeugmaschine
PCT/DE2001/003148 WO2002020224A1 (fr) 2000-09-08 2001-08-16 Porte-outil pour une machine-outil

Publications (2)

Publication Number Publication Date
EP1326736A1 EP1326736A1 (fr) 2003-07-16
EP1326736B1 true EP1326736B1 (fr) 2009-04-01

Family

ID=7655470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01964910A Expired - Lifetime EP1326736B1 (fr) 2000-09-08 2001-08-16 Porte-outil pour une machine-outil

Country Status (7)

Country Link
US (1) US6854740B2 (fr)
EP (1) EP1326736B1 (fr)
JP (1) JP2004508213A (fr)
CN (1) CN1298502C (fr)
BR (1) BR0113723A (fr)
DE (2) DE10044387A1 (fr)
WO (1) WO2002020224A1 (fr)

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DE10047021A1 (de) * 2000-09-22 2002-04-18 Bosch Gmbh Robert Handwerkzeugmachine mit einer abnehmbaren Werkzeughalterung
DE10307534A1 (de) * 2003-02-21 2004-09-02 Volkswagen Ag Verfahren zum Herstellen eines Rollenkörpers
DE10337470A1 (de) * 2003-08-14 2005-03-17 Atlas Copco Electric Tools Gmbh Spanneinrichtung für Sechskantbits
DE102004047606A1 (de) * 2004-09-30 2006-04-06 Hilti Ag Bohr- und/oder Meisselhammer
DE102006000168A1 (de) * 2006-04-10 2008-01-03 Hilti Ag Werkzeugaufnahme
DE102005000097A1 (de) * 2005-07-28 2007-02-01 Hilti Ag Schlagwerkzeugaufnahme
JP2008126378A (ja) 2006-11-22 2008-06-05 Makita Corp 打撃工具
JP4949886B2 (ja) * 2007-02-16 2012-06-13 株式会社マキタ 打撃工具のチャック機構
DE102007028486A1 (de) * 2007-06-21 2008-12-24 Robert Bosch Gmbh Werkzeughalter für ein Elektrowerkzeug, insbesondere für einen Meißel- und/oder Bohrhammer
US8366592B2 (en) 2007-11-30 2013-02-05 Cinetic Automation Corp. Quick change spindle
US8800999B2 (en) * 2009-02-27 2014-08-12 Black & Decker Inc. Bit retention device
DE102009028546A1 (de) * 2009-08-14 2011-02-17 Robert Bosch Gmbh Werkzeughalteeinrichtung für einen Bohrhammer
US8292150B2 (en) 2010-11-02 2012-10-23 Tyco Healthcare Group Lp Adapter for powered surgical devices
JP2012254513A (ja) 2011-06-10 2012-12-27 Makita Corp 打撃工具
DE102011082080A1 (de) * 2011-09-02 2013-03-07 Robert Bosch Gmbh Werkzeughalter für eine Handwerkzeugmaschine
CN103182706B (zh) * 2011-12-28 2016-02-17 苏州宝时得电动工具有限公司 动力工具
WO2013097297A1 (fr) 2011-12-28 2013-07-04 苏州宝时得电动工具有限公司 Outil électrique
DE102012200222A1 (de) * 2012-01-10 2013-07-11 Robert Bosch Gmbh Werkzeugmaschinenspannvorrichtung
US9662778B2 (en) 2012-02-10 2017-05-30 Milwaukee Electric Tool Corporation Bit retention assembly for rotary hammer
DE102012223094A1 (de) * 2012-12-13 2014-06-18 Hilti Aktiengesellschaft Werkzeughalter
EP2961267B2 (fr) 2013-03-01 2021-06-23 The Procter & Gamble Company Dispositif de piège à insectes et procédé d'utilisation
EP3073822B1 (fr) 2013-11-27 2023-06-21 The Procter & Gamble Company Partie de piège à insectes
US11007631B2 (en) * 2014-01-15 2021-05-18 Milwaukee Electric Tool Corporation Bit retention assembly for rotary hammer
BR112016025055B1 (pt) 2014-04-26 2021-01-05 The Procter & Gamble Company armadilha para insetos
WO2016115107A1 (fr) 2015-01-12 2016-07-21 Arthropod Biosciences, Llc Dispositif piège à insectes et procédé d'utilisation
EP3067152A1 (fr) * 2015-03-10 2016-09-14 HILTI Aktiengesellschaft Manchon d'entraînement dans carré conducteur
EP3081340A1 (fr) * 2015-04-13 2016-10-19 HILTI Aktiengesellschaft Machine-outil portative
EP3281750A1 (fr) * 2016-08-08 2018-02-14 HILTI Aktiengesellschaft Porte-outil
CN219293883U (zh) 2020-07-02 2023-07-04 米沃奇电动工具公司 具有刀头固持装置的旋转冲击工具

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Also Published As

Publication number Publication date
JP2004508213A (ja) 2004-03-18
DE10044387A1 (de) 2002-04-04
CN1298502C (zh) 2007-02-07
US6854740B2 (en) 2005-02-15
CN1430547A (zh) 2003-07-16
BR0113723A (pt) 2003-07-22
US20030137114A1 (en) 2003-07-24
DE50114809D1 (de) 2009-05-14
EP1326736A1 (fr) 2003-07-16
WO2002020224A1 (fr) 2002-03-14

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