EP0432169A1 - Dispositif de transmission de couple sur les machines-outils. - Google Patents

Dispositif de transmission de couple sur les machines-outils.

Info

Publication number
EP0432169A1
EP0432169A1 EP19890908381 EP89908381A EP0432169A1 EP 0432169 A1 EP0432169 A1 EP 0432169A1 EP 19890908381 EP19890908381 EP 19890908381 EP 89908381 A EP89908381 A EP 89908381A EP 0432169 A1 EP0432169 A1 EP 0432169A1
Authority
EP
European Patent Office
Prior art keywords
driving grooves
longitudinal plane
rotary driving
grooves
plane
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
Application number
EP19890908381
Other languages
German (de)
English (en)
Other versions
EP0432169B1 (fr
Inventor
Josef Obermeier
Gerhard Rumpp
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
Priority to AT89908381T priority Critical patent/ATE96073T1/de
Publication of EP0432169A1 publication Critical patent/EP0432169A1/fr
Application granted granted Critical
Publication of EP0432169B1 publication Critical patent/EP0432169B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0034—Details of shank profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B25D2217/0049—Roll-shaped locking members
    • 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
    • Y10T279/17068—Rotary socket
    • 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
    • Y10T408/89—Tool or Tool with support
    • Y10T408/907—Tool or Tool with support including detailed shank

Definitions

  • Device on hand-held power tools for torque transmission to impact-drilling tools with two axially closed on both sides, diametrically opposite recesses, which interact with locking bodies, at least three open-ended rotary drive grooves for strip-shaped rotary drivers on both sides of a longitudinal plane running through the two recesses, which open out at the rear end of the tool shaft. which are arranged so distributed over the circumference that in no case two rotary driving grooves are diametrically opposed to each other.
  • a facility of the type in question is from the
  • the tool provided for this device has recesses which are closed on both sides and are diametrically opposite one another, with rotary driving grooves which open out towards the rear end of the tool shaft being provided on both sides of a longitudinal plane running through these recesses.
  • the rotary driving grooves are of this type
  • Chipless forming is inconceivable due to the uneven volume to be formed without a subsequent, extremely complex straightening process.
  • the invention is based on the object of designing a device on hand-held power tools for torque transmission in such a way that its parts can be produced economically, in particular by means of non-cutting forming processes.
  • this object is achieved in that the sum of the cross sections of the rotary driving grooves arranged on one side of the longitudinal plane essentially corresponds to the sum of the rotating driving grooves arranged on the other side of the longitudinal plane, and on each side of the longitudinal plane the rotating driving grooves are symmetrical to a perpendicular to the longitudinal plane Plane of symmetry are arranged and formed.
  • the number of rotary driving grooves on one side of the longitudinal plane is preferably greater than the number of rotating driving grooves on the other side, which has the advantage that the arrangement of the rotary driving grooves on both sides of the longitudinal plane differs sufficiently, above all visually, from one another. This makes it easier for the operator of a hand-held power tool equipped in this way to insert tools.
  • all the rotary driving grooves are expediently of the same length, irrelevant is a length adjustment with respect to the recesses, provided that these are also of equal length to one another.
  • a proven embodiment can be achieved in that the rotary driving grooves project slightly beyond the length of the rear end of the recesses.
  • the central web through which the plane of symmetry passes through between two adjacent rotary driving grooves, has an angle of between 0 ° and 15 ° to the plane of symmetry.
  • This avoids an undercut, which would have an adverse effect both in terms of strength and from the point of view of the forming.
  • the tool for the device according to the invention on hand tools for torque transmission is preferably designed in such a way that the tool shaft has two axially closed, diametrically opposite recesses and with at least three open ends at the rear end of the tool shaft on both sides of a longitudinal plane running through the two recesses arranged rotational driving grooves is provided, which are distributed over the circumference in such a way that in none
  • Fi ⁇ . 1 shows a tool holder arranged on a hammer drill with an inserted tool, in longitudinal section along the line I-I of FIG. 2;
  • Fig. 2 shows a cross section through the tool holder shown in Fig. 1, along the line
  • Fig. 4 shows a cross section through the tool shank shown in Fig. 3, along the line
  • FIG. 5 shows a further tool shank of a tool with four rotary grooves.
  • Fig. 6 shows a cross section through the tool shank shown in Fig. 5, along the line
  • Fig. 8 shows a cross section through the tool shank shown in Fig. 7, along the line
  • the tool holder shown in FIGS. 1 and 2 is arranged on a drilling device, for example on a rotary hammer, with a housing 1.
  • a guide tube 2 is via a bearing 3 in Ge housing 1 rotatably mounted.
  • a sealing ring 4 sliding on the guide tube 2 prevents dirt from penetrating into the bearing 3 on the one hand and lubricant from the housing 1 on the other hand.
  • a striker 5 is axially displaceably mounted in the guide tube 2.
  • a tool shaft 6 of a drilling tool is inserted into the free end 2a of the guide tube 2.
  • the tool shank 6 has two diametrically opposite recesses 6a which are axially closed on both sides, and rotational driving grooves 6c, 6d which are arranged offset with respect to these and open towards the rear end 6b. There is a central web 6e between the two rotary driving grooves 6d.
  • the guide tube 2 is provided with through openings 2b, into which roller-shaped locking elements 7 are inserted.
  • the guide tube 2 also has rotary drivers 2c, 2d which engage in the rotary driving grooves 6c, 6d and serve to transmit the torque from the guide tube 2 to the tool shank 6.
  • an adjusting sleeve 8 can be displaced axially to a limited extent against the force of a compression spring 9 guided in an extension la of the housing 1.
  • the adjusting sleeve 8 has a circumferential escape niche 8a for the locking body 7. When the steep sleeve 8 is pulled back, the escape niche 8a reaches the area of the passage openings 2b and the locking bodies 7 can move radially into the escape niche 8a, whereupon the tool shaft 6 can be pulled out of the guide tube 2.
  • the adjusting sleeve 8 is secured in the feed direction by means of a locking ring 10.
  • FIGS. 3 and 4 show a tool shank 16 which is somewhat enlarged compared to FIGS. 1 and 2, with axially closed recesses 16a and rotational driving grooves 16c, 16d open towards the rear end 16b. 4 shows, the two recesses 16a are diametrically opposite one another.
  • the recesses 16a are thus arranged symmetrically with respect to the plane of symmetry Y running through the longitudinal axis. The same also applies to the arrangement and design of the rotary driving grooves 16c, 16d.
  • the central web 16e remaining between the two rotary driving grooves 16d has an angle A between 0 ° and 15 ° with respect to the plane of symmetry Y.
  • the tool shank 26 shown in FIGS. 5 and 6 differs from that shown in FIGS. 3 and 4
  • FIG. 7 and 8 show a fourth embodiment of a tool shaft 36.
  • This tool shaft 36 has two diametrically opposite recesses 36a.
  • the total number of rotary driving grooves 36c, 36d open towards the rear end 36b is five.
  • the sum of the cross sections of the rotary driving grooves 36c, 36d, 36f is the same on both sides of the longitudinal plane X.
  • the angle B of the central web 36e remaining between the rotary driving grooves 36c with respect to the plane of symmetry Y is, for example, approximately 5 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)

Abstract

Dispositif équipant les machines-outils et servant à la transmission de couples sur les outils de forage à percussion, dans lequel des pièces de blocage (7) coopèrent, au niveau de l'arbre (6) de l'outil, avec des évidements (6a) fermés des deux côtés dans le sens axial et des barrettes de retenue (2b, 2c) avec les rainures d'entraînement (6c, 6d) réparties sur le pourtour. Pour éviter une utilisation inappropriée, les rainures d'entraînement (6c, 6d) sont disposées de telle sorte qu'il soit impossible que deux de ces rainures (6c, 6d) puissent être fabriquées de manière économique par un procédé de formage sans enlèvement de copeaux, la somme des sections des rainures (6c, 6d) est la même des deux côtés d'une coupe longitudinale (X) passant par les évidements (6a), de sorte que des deux côtés de cette coupe longitudinale (X) la même quantité de matériau peut être mise en forme, ce qui permet une répartition uniforme des forces résultantes.
EP89908381A 1988-07-22 1989-07-19 Dispositif de transmission de couple sur les machines-outils Expired - Lifetime EP0432169B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89908381T ATE96073T1 (de) 1988-07-22 1989-07-19 Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824894 1988-07-22
DE3824894A DE3824894A1 (de) 1988-07-22 1988-07-22 Einrichtung an handwerkzeugmaschinen zur drehmomentuebertragung

Publications (2)

Publication Number Publication Date
EP0432169A1 true EP0432169A1 (fr) 1991-06-19
EP0432169B1 EP0432169B1 (fr) 1993-10-20

Family

ID=6359294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89908381A Expired - Lifetime EP0432169B1 (fr) 1988-07-22 1989-07-19 Dispositif de transmission de couple sur les machines-outils

Country Status (8)

Country Link
US (1) US5076371A (fr)
EP (1) EP0432169B1 (fr)
JP (1) JP2736144B2 (fr)
KR (1) KR0148797B1 (fr)
CN (1) CN1015786B (fr)
DE (2) DE3824894A1 (fr)
DK (1) DK171211B1 (fr)
WO (1) WO1990000957A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1070757C (zh) * 1993-12-09 2001-09-12 希尔蒂股份公司 用于手持工具器械的工具和工具夹具

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DE3941646A1 (de) * 1989-12-16 1991-06-20 Heller Werkzeug Gmbh Geb Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
DE4105414A1 (de) * 1991-02-21 1992-08-27 Hilti Ag Werkzeug und werkzeughalter fuer handwerkzeuggeraete
DE4132023A1 (de) * 1991-09-26 1993-04-01 Bosch Gmbh Robert Einrichtung an handwerkzeugmaschinen
DE4137120A1 (de) * 1991-11-12 1993-05-13 Hilti Ag Werkzeug zum schlagbohren und werkzeugaufnahme fuer schlagbohrende werkzeuge
DE4141846A1 (de) * 1991-12-18 1993-06-24 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
DE4200643A1 (de) * 1992-01-13 1993-07-15 Hilti Ag Werkzeug zum schlagbohren und meisseln und werkzeugaufnahme fuer diese werkzeuge
DE4242452A1 (de) * 1992-07-15 1994-01-20 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4313580A1 (de) * 1993-04-26 1994-10-27 Hilti Ag Werkzeugeinspannschaft
DE4341970A1 (de) * 1993-12-09 1995-06-14 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
FI962843A7 (fi) * 1994-01-14 1996-07-12 Bosch Gmbh Robert Käsityökalukoneiden laite työkalujen ottamiseksi mukaan pyörimiseen
DE4402802C2 (de) * 1994-01-31 2003-01-30 Hilti Ag Werkzeug und Werkzeugaufnahme für Handwerkzeuggeräte
DE4405697A1 (de) * 1994-02-18 1995-08-24 Black & Decker Inc Werkzeugaufnahme für einen Bohr- und/oder Meißelhammer
DE19537561A1 (de) * 1995-10-09 1997-04-10 Hilti Ag Werkzeughalter
JP2000501031A (ja) * 1995-10-12 2000-02-02 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 穿孔運転および／または打撃運転を行う電気的な機械に用いられる挿入工具および工具ホルダ
DE10001193B4 (de) * 2000-01-14 2005-10-20 Bosch Gmbh Robert Handwerkzeugmaschine mit einer Werkzeughalterung zur Festlegung des Werkzeugs in Drehrichtung
US6688610B2 (en) 2000-05-12 2004-02-10 Power Tool Holders Incorporated Chuck with quick change
US6533291B2 (en) 2001-02-14 2003-03-18 Power Tool Holders Incorporated Chuck having quick change mechanism
AU2002326946A1 (en) * 2001-09-17 2003-04-01 Milwaukee Electric Tool Corporation Rotary hammer
US6834864B2 (en) 2001-10-24 2004-12-28 Power Tool Holders Incorporated Chuck having quick change mechanism
GB2393931A (en) * 2002-10-10 2004-04-14 Black & Decker Inc Tool for a rotary hammer
DE10357380A1 (de) * 2003-12-05 2005-06-30 Hilti Ag Einsteckende für ein drehendes und/oder schlagendes Werkzeug
DE102004026850A1 (de) * 2004-06-02 2005-12-29 Hilti Ag Einsteckende für ein drehendes und/oder schlagendes Werkzeug
US20050285355A1 (en) * 2004-06-24 2005-12-29 Yuan-Ho Lin Quick removable chuck assembly and its cutting tool
DE102004054685A1 (de) * 2004-11-12 2006-05-18 Hilti Ag Werkzeugaufnahme
DE102006036955A1 (de) * 2006-08-08 2008-02-14 Robert Bosch Gmbh Werkzeugaufnahme
DE102007036312A1 (de) 2007-07-31 2009-02-05 Robert Bosch Gmbh Schnellwechsel-Werkzeugfuttermodul für eine Handwerkzeugmaschine, insbesondere einen Bohrhammer
WO2011099100A1 (fr) * 2010-02-15 2011-08-18 株式会社ミヤナガ Dispositif d'installation et de retrait d'outil de rotation et outil de rotation
DE102010002167A1 (de) * 2010-02-22 2011-08-25 Hilti Aktiengesellschaft Herstellungsverfahren für ein Einsteckende
CN102744731B (zh) * 2012-07-19 2014-07-02 北京理工大学 一体化旋转关节
JP6178854B2 (ja) * 2012-09-26 2017-08-09 アクセス プロダクツ グループ リミテッド ライアビリティ カンパニー クイックリリースコネクタ
EP3925735A1 (fr) * 2020-06-17 2021-12-22 Hilti Aktiengesellschaft Outil et système
WO2022005929A1 (fr) 2020-07-02 2022-01-06 Milwaukee Electric Tool Corporation Outil à percussion rotatif comprenant un dispositif de maintien de foret
WO2022155479A1 (fr) * 2021-01-14 2022-07-21 Milwaukee Electric Tool Corporation Outil rapporté

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DK333581A (da) * 1981-07-24 1983-01-25 Duforac Kartro A S Vaerktoejsskaft isaer til slag eller hammerbor
DE3745046C2 (de) * 1987-05-20 1996-07-25 Bosch Gmbh Robert Werkzeugaufnahme einer Handwerkzeugmaschine mit verdrehsicher einsetzbarem Werkzeug
JP6047079B2 (ja) 2013-08-30 2016-12-21 富士フイルム株式会社 イオン交換膜、イオン交換膜形成用組成物およびイオン交換膜の製造方法

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Publication number Priority date Publication date Assignee Title
CN1070757C (zh) * 1993-12-09 2001-09-12 希尔蒂股份公司 用于手持工具器械的工具和工具夹具

Also Published As

Publication number Publication date
KR900701478A (ko) 1990-12-03
DE58905983D1 (de) 1993-11-25
DK171211B1 (da) 1996-07-29
JPH03505996A (ja) 1991-12-26
DK73390D0 (da) 1990-03-21
EP0432169B1 (fr) 1993-10-20
WO1990000957A1 (fr) 1990-02-08
KR0148797B1 (ko) 1998-10-15
DK73390A (da) 1990-03-31
CN1015786B (zh) 1992-03-11
CN1040847A (zh) 1990-03-28
US5076371A (en) 1991-12-31
JP2736144B2 (ja) 1998-04-02
DE3824894A1 (de) 1990-01-25

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