WO2007038906A1 - Mandrin de perçage - Google Patents

Mandrin de perçage Download PDF

Info

Publication number
WO2007038906A1
WO2007038906A1 PCT/DE2006/000802 DE2006000802W WO2007038906A1 WO 2007038906 A1 WO2007038906 A1 WO 2007038906A1 DE 2006000802 W DE2006000802 W DE 2006000802W WO 2007038906 A1 WO2007038906 A1 WO 2007038906A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
ring
drill chuck
chuck
adjusting ring
Prior art date
Application number
PCT/DE2006/000802
Other languages
German (de)
English (en)
Inventor
Hans-Dieter Mack
Original Assignee
Röhm 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 Röhm Gmbh filed Critical Röhm Gmbh
Publication of WO2007038906A1 publication Critical patent/WO2007038906A1/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
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/123—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis with locking arrangements
    • 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
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1238—Jaws movement actuated by a nut with conical screw-thread
    • 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
    • B23B2231/38—Keyless chucks for hand tools

Definitions

  • the invention relates to a drill chuck, in particular for percussion drilling, with a chuck connected to a drill chuck, in which are arranged inclined to the chuck axis guide shots between a receptacle for the drilling tool forming jaws are arranged with a row of teeth for opening and closing the chuck in the Thread engage a rotatably guided on the chuck body threaded ring, further with a
  • Locking device for the threaded ring consisting of a coaxial ring of SperrausEnglishept and at least one locking member which is engaged in the locking position under the force of a locking spring in the locking recesses, wherein the locking member and * the locking recesses abut each other in such inclined flank surfaces, that this Lock threaded ring in the opening of the drill chuck corresponding direction of rotation against rotation, during rotation of the threaded ring in the opposite, so closing the drill chuck corresponding rotation direction but push out the locking member against the force of the locking spring from the locking recesses and thereby slip from lock recess to lock recess, further with a limited between first stops relative to the threaded ring rotatable coaxial adjusting ring, and with a circumferentially two locking positions for the adjusting ring forming latching device.
  • Such a chuck is known from EP 0 710 518 A2, which has proven to be excellent in practice and has been sold in very high numbers due to its robustness and reliability.
  • These aforementioned advantages are associated with a very simple operation for the user, since when loosening and tensioning of the drill chuck, the locking device is forcibly actuated, so the user must only take the collar and twist in one direction or the other.
  • By locking means a secure clamping of the drilling tool is ensured in drilling operation with high stresses, especially when impact drilling, even if strong vibrations act on the drill chuck.
  • drill chucks are increasingly being used on non-grid-connected, battery-operated drilling machines for screwing.
  • Locking recesses This is associated with a wear of both the locking recesses and the locking member, which is unnecessary when using the chuck for screwing.
  • the invention is therefore based on the object, a drill chuck of the type mentioned in such a way that it is made while maintaining ease of use in the discretion of the user, whether the locking device is activated or not.
  • Adjustment of the locking member between the locking position and the disengaged from the locking teeth state of the locking member corresponding release position is provided, and that in the corresponding opening of the drill chuck rotation direction front second stop in the locked position abuts the counter-stop.
  • the advantage that the user can operate this in the usual way, and in particular when opening the drill chuck means no difference, whether the locking device is activated or not.
  • the user can thus when clamping a tool through the collar the desired clamping force generate and then depending on the application, decide whether in the same direction in which previously the collar has been rotated, and the locking ring is rotated to activate the locking device. If the locking device is activated, the corresponding direction of rotation in the opening of the drill chuck lies against the second stop in the blocking position, so that the adjusting ring can simply be grasped and adjusted in the direction of opening that corresponds to the opening in order to open the drill chuck, without this being the case the locking ring must be pressed again.
  • the adjusting ring relative to the threaded ring is limited rotatable to move the locking member between the locking position and the release position, wherein the latching device serves to secure both rotary positions of the adjusting ring against the threaded ring.
  • the adjusting ring can also assume two rotational positions relative to the threaded ring, but this is not connected to a switching of the blocking member, if this permanently remains in the release position due to a failure of the locking ring. Will the Twist locking ring to activate the locking device, the second stops are changed.
  • the second stops but must not be changed again, since a relative rotation of the adjusting ring relative to the threaded ring remains possible while the locking ring is taken.
  • the locking device in cooperation with the first attacks thus ensures by fixing the rotational position of the adjusting ring a drag function for the locking ring when the locking device is activated.
  • the locking ring is rotatably mounted on the adjusting ring, as this offers advantages both during assembly and during operation, because an immediate accessibility of the locking ring to the chuck body for storage is not required.
  • the locking ring is mounted radially on the outside of the adjusting ring and the counter-stops are arranged on a locking cam formed on the inner circumference of the locking ring.
  • an aesthetic appearance of the chuck can be preserved, in which hinder any structures of the locking ring of gripping the adjusting ring.
  • the locking ring is guided radially inwardly relative to the adjusting ring and passes through this with a counter cam provided the handle cam in a ring window.
  • Embodiment provides the adjusting ring an enlarged, axially longer extending gripping surface available, which is only to interrupt the ring window. It is more pleasant for the user when the handle cam and the ring window are provided twice in a diametrical arrangement.
  • a control cam is formed on the cam, wherein adjusted by turning the locking ring relative to the adjusting ring in the closing of the drill chuck corresponding direction of rotation, the locking member from the disengaged state in the engaged state and vice versa.
  • FIG. 1 shows a drill chuck of a first embodiment, on the left in an axial section, on the right in a side view, in each case in the position of the clamping jaws with the smallest clamping diameter and the unlocked feed state,
  • FIG. 2 shows the section II-II of Figure 1 in the open, unlocked state of the drill chuck.
  • FIG 3 shows the section III-III of Figure 1 in the open, unlocked state of the drill chuck.
  • FIG. 4 shows a representation corresponding to FIG. 3 in the tensioned, unlocked state of the drill chuck, FIG.
  • FIG. 5 shows a representation corresponding to FIG. 3 in the tensioned, locked state of the drill chuck
  • FIG. 6 is a representation corresponding to FIG. 1 of a second embodiment
  • Fig. 9 is a representation corresponding to FIG. 8 in the tensioned, entriegleten state of the drill chuck of Fig. 6, and
  • FIG. 10 is a representation corresponding to FIG. 8 in the tensioned, locked state of the drill chuck from FIG. 6.
  • the drill chuck shown in the drawing serve to receive a tool, not shown, and have a chuck body 1 for connection to a drill spindle, also not shown.
  • a drill spindle for the connection of the drill spindle of the chuck body 1 has a threaded receptacle 2.
  • the chuck 1 further have the tool centering, axially leading and / or clamping jaws 3, which are adjustable in the feed axis 4 coaxial tool holder 5 centric to the chuck axis 4.
  • Adjustment is a connected to a threaded ring 6 adjusting ring 15.
  • the threaded ring 6 is rotatably guided on the chuck body 1 and supported axially to the rear via a ball bearing 7 and a pressure ring 8 on the chuck body 1.
  • the rotational position of the threaded ring 6 can be fixed, including a formed between the threaded ring 6 and the chuck body 1 Locking device is used, which consists of a coaxial ring of locking recesses 9 and a locking member 10, wherein one part of the locking device is assigned to the chuck body 1 and the other part of the threaded ring 6; in the illustrated in the drawing
  • the locking recesses 9 the chuck body 1 and the locking member 10 the threaded ring 6.
  • the locking member 10 engages under the force of a locking spring 11 in the locking recesses 9, wherein the locking member 10 and the receiving this
  • Locking recesses 9 abut each other in such inclined flank surfaces that lock the threaded ring 6 in the opening corresponding to the drill chuck direction of rotation (arrow 12) against rotation, during rotation of the threaded ring 6 with a sufficiently large
  • the locking member 10 is rotatably disposed in a rotatably connected to the threaded ring 6 intermediate sleeve 14, that is itself rotatably connected to the threaded ring 6, wherein the rotational position of the adjusting ring 15 relative to the threaded ring 6 with the intermediate sleeve 14 and the locking member 10 between two first stops 16 adjustable is. Securing these two rotational positions of the adjusting ring 15 relative to the threaded ring 6 serves a
  • Locking device 17 with two circumferentially spaced locking positions 18 for a locking member 26.
  • the locking member 10 can between his in the SperrausEnglishept 9 engaged state in the locked position and be adjusted from the disengaged state in the release position, including a limited counter-attacks 19 between second stops 20, 20 v of the adjusting ring rotatable locking ring 21 is present in the corresponding opening of the drill chuck direction of rotation 12th with its counter-stop 19 abuts the front second stop 20 'of the locking ring 21 in the locking position (Fig. 5).
  • FIGS. 1 and 6 show that the locking ring 21 is rotatably mounted on the adjusting ring 15, in the embodiment according to FIGS. 1 to 5 radially outward on the adjusting ring 15, wherein the counter-stops 19 at one on the inner circumference of the locking ring 21 trained locking cam 22 are arranged.
  • the embodiment of FIGS. 6 to 10 shows a chuck, in which the locking ring 21 is guided radially inwardly relative to the adjusting ring 15 and this passes through with a counter cam 19 providing gripping cam 23 in a ring window 24, wherein the Fig. 8 reveals in that both the gripping cam 23 and the annular window 24 are present twice in diametrical arrangement.
  • a control cam 25 is formed on the cam 22, 23, wherein by turning the locking ring 21 relative to the adjusting ring 15 in its closing the drill chuck corresponding direction of rotation 13, the locking member 10 from the disengaged state adjusted in the engaged state and vice versa.
  • the basic structure and operation of this drill chuck is known from EP 0 710 518 A2 and is understandable to the person of ordinary skill in the art, so that in the following explanation of the operation of the drill chuck shown in the drawing, reference is only made to the differences resulting from the invention.
  • Figs. 1 to 3 show a chuck to be clamped by hand in the open, unlocked state.
  • For clamping the shank of a tool is the
  • the first stops 16 change at an adjustment of the adjusting ring 15, thereby changing its rotational position relative to the threaded ring 6.
  • the user can by turning the locking ring 21 in the same direction of rotation 13, in which previously the adjusting ring 15 has been rotated, press the locking device, but this is not. If the user presses the locking device, the locking ring 21 is adjusted relative to the second stops 20, 20 'of the adjusting ring 15 and thereby leaves through the
  • the user To open the drill chuck and change the tool, the user merely grasps the adjusting ring 15 and twists it in the opposite direction of rotation from the clamping, namely in the direction of the arrow 12, the user being able to do this irrespective of which configuration is present, that is to say independently of whether the state illustrated in FIG. 4, which is suitable in particular for screwing, or the state illustrated in FIG. 5 has been selected by the user.
  • the user is therefore not forced to open the drill chuck before to press the locking ring 21, because this is entrained by the adjusting ring 15, starting from Fig. 5 by rotating the adjusting ring 15 of the operating state shown in Fig. 3 is achieved, the relative rotation of the adjusting ring 15 with the locking ring 21 relative to the threaded ring 6 allows unlocking.

Landscapes

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

Abstract

L'invention concerne un mandrin de perçage pourvu d'un corps de mandrin (1) pouvant être relié à une broche de perçage, corps dans lequel sont placés des mors (3) qui, pour ouvrir et fermer ce mandrin de perçage, s'engagent dans le filetage d'une bague filetée (6) guidée de manière à pouvoir tourner sur le corps (1) du mandrin, et d'un dispositif de blocage pour la bague filetée (6), constitué d'une couronne coaxiale d'évidements de blocage (9) et d'au moins un élément de blocage (10) qui, en position de blocage, est engagé dans les évidements de blocage (9) sous l'effet de la force exercée par un ressort de blocage. Ce mandrin de perçage possède également une bague de réglage coaxiale (15), pouvant pivoter entre des premières butées (16) de façon limitée par rapport à la bague filetée (6), et un dispositif d'encliquetage (17) formant deux positions d'encliquetage (18) pour la bague de réglage (15) dans le sens périphérique. Selon la présente invention, une bague de blocage (21), pouvant pivoter de façon limitée avec des contrebutées (19) entre des secondes butées (20, 20') de la bague de réglage (15), est prévue pour déplacer l'élément de blocage (10) entre la position de blocage et la position de déblocage correspondant à l'état désengagé des évidements de blocage (9) dudit élément de blocage (10) et, en position de blocage, la seconde butée (20'), située à l'avant dans le sens de rotation (12) correspondant à l'ouverture du mandrin de perçage, est appliquée contre la contrebutée (19).
PCT/DE2006/000802 2005-10-06 2006-05-10 Mandrin de perçage WO2007038906A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005048167.1 2005-10-06
DE200510048167 DE102005048167B4 (de) 2005-10-06 2005-10-06 Bohrfutter

Publications (1)

Publication Number Publication Date
WO2007038906A1 true WO2007038906A1 (fr) 2007-04-12

Family

ID=36808720

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/000802 WO2007038906A1 (fr) 2005-10-06 2006-05-10 Mandrin de perçage

Country Status (2)

Country Link
DE (1) DE102005048167B4 (fr)
WO (1) WO2007038906A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140284888A1 (en) * 2013-03-25 2014-09-25 Peter Schenk Drill chuck
CN104148712A (zh) * 2014-08-19 2014-11-19 山东威达机械股份有限公司 耐冲击锁紧式扳手钻夹头
WO2019232744A1 (fr) * 2018-06-07 2019-12-12 Jacobs Chuck Manufacturing (Suzhou) Company, Ltd. Mandrin à alignement automatique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710518A2 (fr) * 1994-10-31 1996-05-08 Günter Horst Röhm Mandrin porte-foret
US5741016A (en) * 1996-10-02 1998-04-21 Power Tool Holders Incorporated Chuck
EP1314499A1 (fr) * 2001-11-21 2003-05-28 Metabowerke GmbH Mandrin de serrage sans clé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710518A2 (fr) * 1994-10-31 1996-05-08 Günter Horst Röhm Mandrin porte-foret
US5741016A (en) * 1996-10-02 1998-04-21 Power Tool Holders Incorporated Chuck
EP1314499A1 (fr) * 2001-11-21 2003-05-28 Metabowerke GmbH Mandrin de serrage sans clé

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140284888A1 (en) * 2013-03-25 2014-09-25 Peter Schenk Drill chuck
US9937562B2 (en) * 2013-03-25 2018-04-10 Roehm Gmbh Drill chuck
CN104148712A (zh) * 2014-08-19 2014-11-19 山东威达机械股份有限公司 耐冲击锁紧式扳手钻夹头
WO2019232744A1 (fr) * 2018-06-07 2019-12-12 Jacobs Chuck Manufacturing (Suzhou) Company, Ltd. Mandrin à alignement automatique
US11203070B2 (en) 2018-06-07 2021-12-21 Apex Brands, Inc. Self-aligning chuck

Also Published As

Publication number Publication date
DE102005048167B4 (de) 2007-06-06
DE102005048167A1 (de) 2007-04-12

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122 Ep: pct application non-entry in european phase

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