EP2308650A1 - Adapter for a motor-driven machine tool with tool to be rotatably driven - Google Patents
Adapter for a motor-driven machine tool with tool to be rotatably driven Download PDFInfo
- Publication number
- EP2308650A1 EP2308650A1 EP20100188512 EP10188512A EP2308650A1 EP 2308650 A1 EP2308650 A1 EP 2308650A1 EP 20100188512 EP20100188512 EP 20100188512 EP 10188512 A EP10188512 A EP 10188512A EP 2308650 A1 EP2308650 A1 EP 2308650A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adapter
- tool
- mandrels
- adapter according
- face
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/003—Accessories 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
- Y10T279/23—Chucks or sockets with magnetic or electrostatic means
-
- 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
- Y10T279/33—Member applies axial force component
-
- 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
- Y10T279/34—Accessory or component
- Y10T279/3406—Adapter
-
- 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
- Y10T279/34—Accessory or component
- Y10T279/3406—Adapter
- Y10T279/3412—Drive conversion
-
- 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
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9457—Joint or connection
- Y10T83/9464—For rotary tool
Definitions
- the invention relates to an adapter for a motor-driven machine tool with rotatably driven tool, in particular for a hand tool.
- a hand tool with electric motor driven tool on a tool shaft on the front side of a fastening device for receiving the tool is arranged.
- the fastening device consists of a radially extended abutment flange with on the front side axially projecting interlocking elements which protrude when mounted tool in associated receptacles in a mounting portion of the tool.
- the tool is secured by means of a fastening screw on the drive shaft, wherein the fastening screw is screwed into a threaded bore which is introduced into the end face of the drive shaft.
- the interlocking elements provide a positive connection of the tool to the drive shaft in the circumferential direction for transmitting the rotary motion to the tool.
- US-5366312-A discloses an adapter according to the preamble of claim 1.
- the invention has for its object to combine tools with different types of fixtures against rotation with the tool shaft of a machine tool.
- the adapter for a motor-driven machine tool with rotating, in particular rotating or oscillating mospendelnd tool to be driven, in particular for a hand tool has on a first end form-fitting counterparts, which are adapted to the interlocking elements, which are arranged on the front side of the tool shaft.
- a plurality of axially projecting mandrels are arranged at the second, opposite end face of the adapter distributed over the circumference. These mandrels allow a high adhesion both in the axial direction and in the circumferential direction between the tool shaft and the tool, which is large enough to transfer the forces and moments occurring during operation between the tool shaft and tool without functional restrictions.
- the tapered mandrels on one of the end faces of the adapter penetrate slightly into the attachment portion of the tool and thus produce at least approximately a positive fit in the circumferential direction, but at least the transferable forces are large enough for proper operation to the exclusion of circumferentially acting due to the frictional connection Slippage between drive or tool shaft and tool.
- the adapter Since the adapter has form-locking counterparts on the side facing the tool shaft which are adjacent to the form-locking elements are adapted to the tool shaft, a positive connection is realized on this page.
- the mandrels on the opposite end of the adapter can be connected to various attachment portions of various tools, regardless of whether these attachment portions are themselves equipped with form-fitting counterparts.
- annular For a secure attachment, in particular in the axial direction between the tool and the tool shaft of the adapter is annular and has a central recess for receiving a securing element, for example a locking screw.
- This central recess is delimited by a neck, which advantageously rises in the axial direction beyond the mandrels having end face, wherein the mandrels preferably have a smaller axial projection relative to the end face than the neck.
- the projecting connecting piece protrudes into a corresponding recess in the fastening section of the tool, so that the end face of the fastening section comes into contact with the tips of the mandrels.
- the axial projection of the nozzle relative to the mandrels at the same time represents a safety measure against accidental scratching of sensitive surfaces in the event of a filing of the adapter with the thorns down, since the adapter is placed on the neck and the tips of the mandrels with a small distance to the shelf lie.
- the mandrels which are preferably formed integrally with the adapter, expediently have a conical shape, in principle, other geometries for the mandrels come into consideration, as long as they are provided with a tip.
- the mandrels are surrounded by an annular recess which is axially set back relative to the mandrels having front side plane. This recess allows the inclusion of dirt and dust particles from the mounting portion of the tool, whereby a better contact between the spines and the Surface of the attachment portion is ensured even in the dirty state.
- the axial depth of the recess which extends in the opposite direction to the spines, is advantageously less than the axial projection of the mandrels and is for example about half of the elevation of the mandrels.
- a plurality of in particular identically constructed mandrels are provided on the adapter over the circumference.
- a plurality of mandrels can be arranged lying one behind the other in the radial direction, distributed over the circumference in a plurality of such radial rows.
- a radial row with thorns between two adjacent form-fitting counterparts is arranged in the adapter, so that the number of rows of thorns is identical to the number of form-fitting counterparts in the adapter.
- the form-fitting counterparts in the adapter may be expedient to form the form-fitting counterparts in the adapter as recesses which serve to receive the form-locking elements, which are usually formed as elevations, on the end face of the tool shaft.
- the recesses in the adapter assigned to the interlocking elements advantageously have an elongate shape in the radial direction, so that differently shaped elevations on the front side of the tool shaft or elevations at different radial distances from the Shaft axis can be absorbed by the hole pattern in the adapter.
- the extent of the recesses in the circumferential direction is adapted to the corresponding extension of the elevations on the end face of the tool shaft.
- tool shaft 1 is used in particular in a hand tool such as a cutting or grinding device use and is driven by a drive motor in the machine tool rotating or oscillating rotary pendulum motion.
- the tool shaft 1 on a front side on a contact flange with an enlarged diameter, on the free, the tool shaft 1 facing away from a plurality designed as surveys form-fitting elements 3 carries, for example, each having a round diameter and are cylindrical or conical.
- the interlocking elements 3 are positioned on the outer edge of the end face of the abutment flange 2 and distributed uniformly over the circumference.
- a central threaded bore 4 is introduced into the free end face of the abutment flange 2, which serves to receive a fastening element, for example a fastening screw, via which the tool is secured to the abutment flange 2.
- a tool 5 is shown, which is provided with a fastening portion 6, via which the tool is connected to the abutment flange 2 of the tool shaft 1.
- the attachment portion 6 has a plurality of circumferentially distributed recesses 7, which have the function of form-fitting counterparts and serve to receive the positive-locking elements 3 on the abutment flange 2.
- a central recess 8 is introduced into the mounting portion 6, which is adapted to the threaded bore 4 and through which the fastener is guided.
- an adapter 9 is shown, which can be interposed between the abutment flange 2 and the attachment portion 6 of the tool.
- the task of the adapter 9 is to connect different tools with different mounting portions with the abutment flange 2 of the tool shaft.
- the adapter 9 recesses 10 which have the function of form-fitting counterparts and are used to hold the designed as a survey form-locking elements 3 on the abutment flange 2 of the tool shaft 1.
- the recesses 10 are distributed uniformly over the circumference and each have an elongated shape in the radial direction, the recesses 10 are thus formed in the radial direction longer than the elevations 3, whereas in the circumferential direction, the width of the recesses 10 at the diameter of the elevations 3 is adjusted.
- the adapter 9 can be connected to differently shaped abutment flanges, which differ, for example, with regard to the shape of the interlocking elements 3 or in the radial distance of the interlocking elements to the shaft axis.
- the recesses 10 in the adapter 9 penetrate in the axial direction, the wall of the adapter 9 completely.
- mandrels 11 are arranged on the adapter 9, which extend beyond the plane of the end face 13 (FIG. Fig. 4 ) protrude axially. Distributed over the circumference a plurality of such mandrels 11 are provided; like out Fig. 3 it can be seen, in each case a plurality of mandrels 11 may be arranged lying in a radial row one behind the other, each one such, extending in the radial direction row of thorns 11 between each two adjacent recesses 10 for receiving the interlocking elements.
- a central recess 12 is inserted, which is adapted to the threaded bore 4 in the abutment flange 2 of the tool shaft 1.
- This central recess 12 is bordered by a connecting piece 14 which also rises axially above the end face 13 receiving the pins 11.
- the nozzle 14 has, relative to the plane of the end face 13, a larger axial elevation than the mandrels 11.
- a collar 15 is arranged on the adapter 9, which is positioned radially outwardly and radially bounded on the end face 16 of the adapter a receiving space which is provided for receiving the abutment flange 2 of the tool shaft 1.
- a mandrel 11 conical shape As the cutting magnification according to Fig. 5 can be seen, have the mandrels 11 conical shape.
- a mandrel 11 encompassing, annular recess 17 is introduced into the end face 13, which is axially offset from the plane of the end face 13.
- This recess 17 has - with respect to the plane of the end face 13 - a smaller axial extent than the mandrel 11.
- the depth of the recess 17 is about half as large as the elevation of the mandrel eleventh
- the adapter 9 is made of a magnetic material, whereby the mounting of the adapter on the abutment flange of the tool shaft on the one hand and the attachment of the tool to the adapter on the other hand is simplified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Drilling And Boring (AREA)
- Milling Processes (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Adapter für eine motorisch angetriebene Werkzeugmaschine mit drehbar anzutreibendem Werkzeug, insbesondere für eine Handwerkzeugmaschine.The invention relates to an adapter for a motor-driven machine tool with rotatably driven tool, in particular for a hand tool.
In der
Voraussetzung für die Verbindung von Werkzeug und Antriebswelle ist jedoch die geometrische Übereinstimmung der Formschlusselemente an der Stirnseite der Antriebswelle mit den zugeordneten Ausnehmungen im Befestigungsabschnitt des Werkzeugs.Prerequisite for the connection of the tool and the drive shaft, however, is the geometric agreement of the form-locking elements on the end face of the drive shaft with the associated recesses in the attachment portion of the tool.
Der Erfindung liegt die Aufgabe zugrunde, Werkzeuge mit verschiedenartigen Befestigungsaufnahmen verdrehsicher mit der Werkzeugwelle einer Werkzeugmaschine zu verbinden.The invention has for its object to combine tools with different types of fixtures against rotation with the tool shaft of a machine tool.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.
Der Adapter für eine motorisch angetriebene Werkzeugmaschine mit drehbar, insbesondere rotierend oder oszillierend drehpendelnd anzutreibendem Werkzeug, insbesondere für eine Handwerkzeugmaschine, weist an einer ersten Stirnseite Formschlussgegenstücke auf, die an die Formschlusselemente angepasst sind, die an der Stirnseite der Werkzeugwelle angeordnet sind. An der zweiten, gegenüberliegenden Stirnseite des Adapters sind über den Umfang verteilt mehrere axial überstehende Dorne angeordnet. Diese Dorne ermöglichen einen hohen Kraftschluss sowohl in Achsrichtung als auch in Umfangsrichtung zwischen der Werkzeugwelle und dem Werkzeug, der groß genug ist, um die im laufenden Betrieb auftretenden Kräfte und Momente zwischen Werkzeugwelle und Werkzeug ohne Funktionseinschränkungen übertragen zu können. Die spitz zulaufenden Dorne an einer der Stirnseiten des Adapters dringen geringfügig in den Befestigungsabschnitt des Werkzeuges ein und stellen damit in Umfangsrichtung mindestens annähernd einen Formschluss her, zumindest aber sind aufgrund des Kraftschlusses die übertragbaren Kräfte groß genug für einen ordnungsgemäßen Betrieb unter Ausschluss von in Umfangsrichtung wirkendem Schlupf zwischen Antriebs- bzw. Werkzeugwelle und Werkzeug.The adapter for a motor-driven machine tool with rotating, in particular rotating or oscillating drehpendelnd tool to be driven, in particular for a hand tool, has on a first end form-fitting counterparts, which are adapted to the interlocking elements, which are arranged on the front side of the tool shaft. At the second, opposite end face of the adapter distributed over the circumference a plurality of axially projecting mandrels are arranged. These mandrels allow a high adhesion both in the axial direction and in the circumferential direction between the tool shaft and the tool, which is large enough to transfer the forces and moments occurring during operation between the tool shaft and tool without functional restrictions. The tapered mandrels on one of the end faces of the adapter penetrate slightly into the attachment portion of the tool and thus produce at least approximately a positive fit in the circumferential direction, but at least the transferable forces are large enough for proper operation to the exclusion of circumferentially acting due to the frictional connection Slippage between drive or tool shaft and tool.
Da der Adapter auf der der Werkzeugwelle zugewandten Seite Formschlussgegenstücke besitzt, die an die Formschlusselemente der Werkzeugwelle angepasst sind, wird auf dieser Seite ein Formschluss realisiert. Die Dorne auf der gegenüberliegenden Stirnseite des Adapters können mit verschiedenartigen Befestigungsabschnitten diverser Werkzeuge verbunden werden, ungeachtet dessen, ob diese Befestigungsabschnitte selbst mit Formschlussgegenstücken ausgestattet sind.Since the adapter has form-locking counterparts on the side facing the tool shaft which are adjacent to the form-locking elements are adapted to the tool shaft, a positive connection is realized on this page. The mandrels on the opposite end of the adapter can be connected to various attachment portions of various tools, regardless of whether these attachment portions are themselves equipped with form-fitting counterparts.
Für eine sichere Befestigung insbesondere in Achsrichtung zwischen dem Werkzeug und der Werkzeugwelle ist der Adapter ringförmig ausgebildet und weist eine zentrale Ausnehmung zur Aufnahme eines Sicherungselementes, beispielsweise einer Sicherungsschraube auf. Diese zentrale Ausnehmung wird von einem Stutzen begrenzt, der sich vorteilhafterweise in Achsrichtung gesehen über die die Dorne aufweisende Stirnseite erhebt, wobei die Dorne vorzugsweise einen kleineren axialen Überstand gegenüber der Stirnseite aufweisen als der Stutzen. In der Betriebsposition ragt der überstehende Stutzen in eine korrespondierende Ausnehmung im Befestigungsabschnitt des Werkzeuges ein, so dass die Stirnfläche des Befestigungsabschnittes in Anlage mit den Spitzen der Dorne gelangt. Der axiale Überstand des Stutzens bezogen auf die Dorne stellt zugleich eine Sicherheitsmaßnahme gegen unbeabsichtigtes Verkratzen empfindlicher Oberflächen für den Fall einer Ablage des Adapters mit den Dornen nach unten dar, da der Adapter auf dem Stutzen abgelegt wird und die Spitzen der Dorne mit geringfügigem Abstand zur Ablagefläche liegen.For a secure attachment, in particular in the axial direction between the tool and the tool shaft of the adapter is annular and has a central recess for receiving a securing element, for example a locking screw. This central recess is delimited by a neck, which advantageously rises in the axial direction beyond the mandrels having end face, wherein the mandrels preferably have a smaller axial projection relative to the end face than the neck. In the operating position, the projecting connecting piece protrudes into a corresponding recess in the fastening section of the tool, so that the end face of the fastening section comes into contact with the tips of the mandrels. The axial projection of the nozzle relative to the mandrels at the same time represents a safety measure against accidental scratching of sensitive surfaces in the event of a filing of the adapter with the thorns down, since the adapter is placed on the neck and the tips of the mandrels with a small distance to the shelf lie.
Die Dorne, welche bevorzugt einteilig mit dem Adapter ausgebildet sind, weisen zweckmäßig eine konische Form auf, wobei grundsätzlich auch andere Geometrien für die Dorne in Betracht kommen, solange diese mit einer Spitze versehen sind. Gemäß einer weiteren zweckmäßigen Ausführung sind die Dorne von einer ringförmigen Vertiefung umgeben, die bezogen auf die die Dorne aufweisende Stirnseitenebene axial zurückgesetzt ist. Diese Vertiefung ermöglicht die Aufnahme von Schmutz- und Staubpartikeln von dem Befestigungsabschnitt des Werkzeuges, wodurch ein besserer Kontakt zwischen den Dornen und der Oberfläche des Befestigungsabschnittes auch im verschmutzten Zustand gewährleistet ist. Die axiale Tiefe der Vertiefung, die sich in Gegenrichtung zu den Dornen erstreckt, ist vorteilhafterweise geringer als dir axiale Überstand der Dorne und beträgt beispielsweise etwa die Hälfte der Erhebung der Dorne.The mandrels, which are preferably formed integrally with the adapter, expediently have a conical shape, in principle, other geometries for the mandrels come into consideration, as long as they are provided with a tip. According to a further advantageous embodiment, the mandrels are surrounded by an annular recess which is axially set back relative to the mandrels having front side plane. This recess allows the inclusion of dirt and dust particles from the mounting portion of the tool, whereby a better contact between the spines and the Surface of the attachment portion is ensured even in the dirty state. The axial depth of the recess, which extends in the opposite direction to the spines, is advantageously less than the axial projection of the mandrels and is for example about half of the elevation of the mandrels.
Um eine feste Verbindung zwischen Adapter und Werkzeug im Sinne eines Zwangs- bzw. Quasi-Formschlusses herzustellen, sind über den Umfang eine Mehrzahl insbesondere gleichartig aufgebauter Dorne am Adapter vorgesehen. Jeweils mehrere Dorne können in Radialrichtung gesehen hintereinander liegend angeordnet sein, und zwar über den Umfang verteilt in einer Mehrzahl derartiger radialer Reihen. Beispielsweise ist jeweils eine Radialreihe mit Dornen zwischen zwei benachbarten Formschlussgegenstücken im Adapter angeordnet, so dass die Anzahl der Reihen mit Dornen identisch ist mit der Anzahl an Formschlussgegenstücken im Adapter.In order to produce a firm connection between the adapter and the tool in the sense of a forced or quasi-positive connection, a plurality of in particular identically constructed mandrels are provided on the adapter over the circumference. In each case a plurality of mandrels can be arranged lying one behind the other in the radial direction, distributed over the circumference in a plurality of such radial rows. For example, in each case a radial row with thorns between two adjacent form-fitting counterparts is arranged in the adapter, so that the number of rows of thorns is identical to the number of form-fitting counterparts in the adapter.
Des Weiteren kann es zweckmäßig sein, die Formschlussgegenstücke im Adapter als Ausnehmungen auszubilden, die zur Aufnahme der üblicherweise als Erhebungen ausgebildeten Formschlusselemente an der Stirnseite der Werkzeugwelle dienen. Um den Adapter an verschiedenartige Werkzeugwellen mit unterschiedlichen Formschlussmustern an der Stirnseite anschließen zu können, weisen die den Formschlusselementen zugeordneten Ausnehmungen im Adapter vorteilhafterweise eine in Radialrichtung längliche Form auf, so dass unterschiedlich geformte Erhebungen an der Stirnseite der Werkzeugwelle bzw. Erhebungen in unterschiedlichem radialen Abstand zur Wellenachse von dem Lochmuster im Adapter aufgenommen werden können. Um in Umfangsrichtung jegliches Spiel zu vermeiden, ist die Erstreckung der Ausnehmungen in Umfangsrichtung an die entsprechende Erstreckung der Erhebungen an der Stirnseite der Werkzeugwelle angepasst.Furthermore, it may be expedient to form the form-fitting counterparts in the adapter as recesses which serve to receive the form-locking elements, which are usually formed as elevations, on the end face of the tool shaft. In order to be able to connect the adapter to various tool shafts with different positive locking patterns on the front side, the recesses in the adapter assigned to the interlocking elements advantageously have an elongate shape in the radial direction, so that differently shaped elevations on the front side of the tool shaft or elevations at different radial distances from the Shaft axis can be absorbed by the hole pattern in the adapter. In order to avoid any play in the circumferential direction, the extent of the recesses in the circumferential direction is adapted to the corresponding extension of the elevations on the end face of the tool shaft.
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht einer Werkzeugwelle für eine Werkzeugmaschine, insbesondere eine Handwerkzeugmaschine, wobei die Werkzeugwelle an einer Stirnseite einen Anlageflansch mit größerem Durchmesser und am Anlageflansch angeordnete, axial überstehende Formschlusselemente aufweist,
- Fig. 2
- ein Werkzeug, das einen Befestigungsabschnitt mit Ausnehmungen zur Aufnahme der Formschlusselemente an der Stirnseite der Werkzeugwelle aufweist,
- Fig. 3
- eine stirnseitige Ansicht eines Adapters, der zur Zwischenschaltung zwischen Werkzeugwelle und Werkzeug ausgebildet ist, mit länglichen Ausnehmungen zur Aufnahme der Formschlusselemente an der Stirnseite der Werkzeugwelle und mit an der gegenüberliegenden Stirnseite axial überstehenden Dornen, die im montierten Zustand in die Oberfläche des Befestigungsflansches am Werkzeug eindringen,
- Fig. 4
- einen Schnitt durch den Adapter,
- Fig. 5
- eine Detailansicht eines einteilig mit dem Adapter ausgebildeten Dorns.
- Fig. 1
- a perspective view of a tool shaft for a machine tool, in particular a hand tool, wherein the tool shaft has on one end face a contact flange with a larger diameter and arranged on the abutment flange, axially projecting interlocking elements,
- Fig. 2
- a tool having a fixing portion with recesses for receiving the interlocking elements on the end face of the tool shaft,
- Fig. 3
- an end view of an adapter, which is designed for the intermediate connection between the tool shaft and tool, with elongated recesses for receiving the interlocking elements on the front side of the tool shaft and with axially projecting at the opposite end thorns, which penetrate in the assembled state in the surface of the mounting flange on the tool .
- Fig. 4
- a section through the adapter,
- Fig. 5
- a detailed view of a one-piece formed with the adapter mandrel.
Die in
In
In den
Hierzu weist der Adapter 9 Ausnehmungen 10 auf, die die Funktion von Formschlussgegenstücken haben und zur Aufnahme der als Erhebung ausgeführten Formschlusselemente 3 am Anlageflansch 2 der Werkzeugwelle 1 dienen. Die Ausnehmungen 10 sind über den Umfang verteilt gleichmäßig angeordnet und besitzen jeweils eine in Radialrichtung längliche Form, die Ausnehmungen 10 sind somit in Radialrichtung länger ausgebildet als die Erhebungen 3, wohingegen in Umfangsrichtung die Breite der Ausnehmungen 10 an den Durchmesser der Erhebungen 3 angepasst ist. Dadurch kann der Adapter 9 mit unterschiedlich ausgebildeten Anlageflanschen verbunden werden, die sich beispielsweise im Hinblick auf die Form der Formschlusselemente 3 oder im radialen Abstand der Formschlusselemente zur Wellenachse unterscheiden. Die Ausnehmungen 10 im Adapter 9 durchdringen in Achsrichtung die Wandung des Adapters 9 vollständig.For this purpose, the
Des Weiteren sind am Adapter 9 die Dorne 11 angeordnet, die über Ebene der Stirnseite 13 (
In den Adapter 9 ist eine zentrale Ausnehmung 12 eingebracht, die an die Gewindebohrung 4 im Anlageflansch 2 der Werkzeugwelle 1 angepasst ist. Diese zentrale Ausnehmung 12 ist von einem Stutzen 14 eingefasst, der sich axial ebenfalls über die die Dorne 11 aufnehmende Stirnseite 13 erhebt. Der Stutzen 14 weist bezogen auf die Ebene der Stirnseite 13 eine größere axiale Erhebung auf als die Dorne 11.In the
Auf der der Stirnseite 13 gegenüberliegenden Seite ist am Adapter 9 ein Kragen 15 angeordnet, der radial außen liegend positioniert ist und an der Stirnseite 16 des Adapters einen Aufnahmeraum radial begrenzt, der zur Aufnahme des Anlageflansches 2 der Werkzeugwelle 1 vorgesehen ist.On the opposite side of the
Wie der Ausschnittvergrößerung gemäß
Zweckmäßigerweise besteht der Adapter 9 aus einem magnetischen Werkstoff, wodurch die Montage des Adapters am Anlageflansch der Werkzeugwelle einerseits sowie die Befestigung des Werkzeugs am Adapter andererseits vereinfacht wird.Conveniently, the
Claims (14)
dadurch gekennzeichnet, dass der Adapter (9) an einer Stirnseite (16) an die Formschlusselemente (3) der Werkzeugwelle (1) angepasste Formschlussgegenstücke (10) aufweist, und dass an der gegenüberliegenden Stirnseite (13) des Adapters (9) über den Umfang verteilt mehrere axial überstehende Dorne (11) angeordnet sind.Adapter for a motor-driven machine tool with rotatable, in particular rotating or oscillating drehpendelnd tool to be driven, in particular for a hand tool, the machine has a driven by a drive motor in the machine tool rotating or oscillating rotary pendulum motion tool shaft (1) whose end face as abutment flange (2 ) is formed with at least one positive locking element (3) for receiving and fastening the tool (5),
characterized in that the adapter (9) at one end face (16) to the positive locking elements (3) of the tool shaft (1) adapted positive locking counterparts (10), and in that on the opposite end face (13) of the adapter (9) over the circumference distributed a plurality of axially projecting mandrels (11) are arranged.
dadurch gekennzeichnet, dass die Dorne (11) einteilig mit dem Adapter (9) ausgebildet sind.Adapter according to claim 1,
characterized in that the mandrels (11) are formed integrally with the adapter (9).
dadurch gekennzeichnet, dass der Adapter (9) ringförmig ausgebildet ist und eine zentrale Ausnehmung (12) aufweist.Adapter according to claim 1 or 2,
characterized in that the adapter (9) is annular and has a central recess (12).
dadurch gekennzeichnet, dass im ringförmigen Adapter (9) ein die zentrale Ausnehmung (12) begrenzender Stutzen (14) vorgesehen ist, der sich axial über die die Dorne (11) aufweisende Stirnseite (13) erhebt.Adapter according to claim 3,
characterized in that in the annular adapter (9) has a central recess (12) delimiting pipe (14) is provided which rises axially over the mandrels (11) having end face (13).
dadurch gekennzeichnet, dass die Dorne (11) einen kleineren axialen Überstand aufweisen als der Stutzen (14).Adapter according to claim 4,
characterized in that the mandrels (11) have a smaller axial projection than the nozzle (14).
dadurch gekennzeichnet, dass die Dorne (11) bezogen auf die Stirnseitenebene eine den Dorn (11) umgreifende, axial zurückgesetzte, ringförmige Vertiefung (17) aufweisen.Adapter according to one of claims 1 to 5,
characterized in that the mandrels (11) with respect to the front side plane a mandrel (11) embracing, axially recessed, annular recess (17).
dadurch gekennzeichnet, dass in Achsrichtung die Vertiefung (17) eine geringere axiale Erstreckung aufweist als der axiale Überstand der Dorne (11) beträgt.Adapter according to claim 6,
characterized in that in the axial direction, the recess (17) has a smaller axial extent than the axial projection of the mandrels (11).
dadurch gekennzeichnet, dass die axiale Tiefe der Vertiefung (17) die Hälfte des axialen Überstandes der Dorne (11) beträgt.Adapter according to claim 7,
characterized in that the axial depth of the recess (17) is half the axial projection of the mandrels (11).
dadurch gekennzeichnet, dass die Dorne (11) konisch ausgebildet sind.Adapter according to one of claims 1 to 8,
characterized in that the mandrels (11) are conical.
dadurch gekennzeichnet, dass jeweils mehrere Dorne (11) in Radialrichtung hintereinander liegend angeordnet sind.Adapter according to one of claims 1 to 9,
characterized in that in each case a plurality of mandrels (11) are arranged one behind the other in the radial direction.
dadurch gekennzeichnet, dass jeweils mehrere Dorne (11) zwischen zwei benachbarten Formschlussgegenstücken (10) im Adapter (9) angeordnet sind.Adapter according to one of claims 1 to 10,
characterized in that in each case a plurality of mandrels (11) between two adjacent form-fitting counterparts (10) in the adapter (9) are arranged.
dadurch gekennzeichnet, dass die Formschlussgegenstücke (10) im Adapter (9) als Ausnehmungen (10) ausgebildet sind.Adapter according to one of claims 1 to 11,
characterized in that the form-fitting counterparts (10) in the adapter (9) as recesses (10) are formed.
dadurch gekennzeichnet, dass die Ausnehmungen (10) in Radialrichtung länglich ausgebildet sind.Adapter according to claim 12,
characterized in that the recesses (10) are elongated in the radial direction.
dadurch gekennzeichnet, dass der Adapter (9) aus einem magnetischen Werkstoff besteht.Adapter according to one of claims 1 to 13,
characterized in that the adapter (9) consists of a magnetic material.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007007294U DE202007007294U1 (en) | 2007-04-19 | 2007-04-19 | Motor propelled machine tool e.g. for machine tool, has movable pivotable tools which can be propelled with propelable tool shaft and at whose face mounting device is arranged |
DE200710036786 DE102007036786A1 (en) | 2007-04-19 | 2007-08-03 | Adapter for a motor-driven machine tool with rotatably driven tool |
EP20080735700 EP2152475B1 (en) | 2007-04-19 | 2008-04-02 | Adapter for a motor-driven machine tool with tool to be rotatably driven |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08735700.0 Division | 2008-04-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2308650A1 true EP2308650A1 (en) | 2011-04-13 |
Family
ID=39768049
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080735700 Not-in-force EP2152475B1 (en) | 2007-04-19 | 2008-04-02 | Adapter for a motor-driven machine tool with tool to be rotatably driven |
EP20100188512 Withdrawn EP2308650A1 (en) | 2007-04-19 | 2008-04-02 | Adapter for a motor-driven machine tool with tool to be rotatably driven |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080735700 Not-in-force EP2152475B1 (en) | 2007-04-19 | 2008-04-02 | Adapter for a motor-driven machine tool with tool to be rotatably driven |
Country Status (6)
Country | Link |
---|---|
US (2) | US8113520B2 (en) |
EP (2) | EP2152475B1 (en) |
CN (2) | CN102189535B (en) |
AT (1) | ATE487565T1 (en) |
DE (2) | DE102007036786A1 (en) |
WO (1) | WO2008128862A1 (en) |
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- 2008-04-02 CN CN2011100983339A patent/CN102189535B/en not_active Expired - Fee Related
- 2008-04-02 US US12/439,881 patent/US8113520B2/en not_active Expired - Fee Related
- 2008-04-02 EP EP20080735700 patent/EP2152475B1/en not_active Not-in-force
- 2008-04-02 WO PCT/EP2008/053950 patent/WO2008128862A1/en active Application Filing
- 2008-04-02 CN CN2008800125955A patent/CN101663136B/en not_active Expired - Fee Related
- 2008-04-02 EP EP20100188512 patent/EP2308650A1/en not_active Withdrawn
- 2008-04-02 AT AT08735700T patent/ATE487565T1/en active
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2011
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Also Published As
Publication number | Publication date |
---|---|
EP2152475A1 (en) | 2010-02-17 |
CN102189535B (en) | 2013-11-06 |
US20100052269A1 (en) | 2010-03-04 |
CN102189535A (en) | 2011-09-21 |
US8403341B2 (en) | 2013-03-26 |
EP2152475B1 (en) | 2010-11-10 |
CN101663136B (en) | 2011-12-14 |
DE102007036786A1 (en) | 2008-10-23 |
WO2008128862A1 (en) | 2008-10-30 |
US8113520B2 (en) | 2012-02-14 |
US20120056388A1 (en) | 2012-03-08 |
ATE487565T1 (en) | 2010-11-15 |
CN101663136A (en) | 2010-03-03 |
DE502008001774D1 (en) | 2010-12-23 |
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