EP1513651B1 - Insert tool comprising an attaching unit - Google Patents
Insert tool comprising an attaching unit Download PDFInfo
- Publication number
- EP1513651B1 EP1513651B1 EP03724866A EP03724866A EP1513651B1 EP 1513651 B1 EP1513651 B1 EP 1513651B1 EP 03724866 A EP03724866 A EP 03724866A EP 03724866 A EP03724866 A EP 03724866A EP 1513651 B1 EP1513651 B1 EP 1513651B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- driving
- latching element
- application tool
- latching
- fastening unit
- 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
Links
- 239000002184 metal Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
Images
Classifications
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
-
- 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
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/02—Wheels in one piece
Definitions
- the invention relates to an insert tool with a fastening unit according to the preamble of claim 1.
- the tool holder for a hand-held angle grinder and an insert tool with a hub known.
- the tool holder has a driving device, via which the hub or the fastening unit of the insert tool can be operatively connected to a drive shaft.
- the hub of the insert tool is operatively connected via latching elements of the driving device, which are movable against a spring element, with the driving device.
- latching elements of the driving device which are movable against a spring element, with the driving device.
- the hub recesses are introduced, in which engage the locking elements in an operating position of the insert tool form fit and fix the insert tool.
- the insertion tool comprises a fastening unit formed by a plate, which in an operating position has at least one latching element facing the driving device for fixing the insertion tool.
- the tool holder has a driving device.
- the entrainment device has a driving flange, which comprises entrainment elements.
- the invention relates to an insert tool with a fastening unit, which is formed by a sheet metal hub, for a machine tool with a driving device, in particular for a handheld angle grinder with a driving device, wherein the fastening unit has at least one latching element for fixing in an operating position, wherein with the locking element, a positive securing the fastening unit in the axial direction and in the circumferential direction is reached.
- the latching element is configured S-shaped, wherein the latching element has a first, extending approximately in the axial direction part for rotational drive and / or securing in a first circumferential direction, a subsequent to the first part of the second part to secure has in the axial direction and a third, extending approximately in the axial direction extending part for securing in a second circumferential direction. It is achievable a mounting unit for mounting the insert tool in the machine tool, can be advantageously avoided in the loss of parts, in particular a clamping flange, a clamping nut, etc., A correct installation of the insert tool, in particular in direction of rotation-bound insert tools, is ensured by the latching elements pointing to the driving device.
- the detent elements facing the driving device cause an intuitively correct assembly of the insert tool in a correct working position.
- the safety for an operator be increased by only use tools can be mounted, which have been approved by the manufacturer. It is a so-called closed system accessible. Due to the S-shaped configuration of the latching element, a first part extending approximately in the axial direction can be used for rotational drive and / or for securing in a first circumferential direction. A second part which adjoins the first part substantially perpendicularly can be used for securing in the axial direction and a third part extending approximately in the axial direction can advantageously be used for securing in a second circumferential direction.
- the fastening unit and the locking element can be made in one piece or in several parts. If the fastening unit and the locking element are designed in several parts, the locking element and the fastening unit can be made of different materials. The different materials can be adapted to specific requirements or to different loads, such as a shear, compression and / or tensile load be designed and dimensioned accordingly.
- the locking element is particularly advantageously formed in one piece with the fastening unit. It is a mounting unit accessible, which can be easily designed and manufactured inexpensively. Additional tree parts, costs and assembly time can be avoided.
- the latching element is formed by a punching operation on the fastening unit, the latching element and the fastening unit can be made in one operation from an entire unit and the locking element can be brought into its shape. Manufacturing steps, such as in particular free cutting and bending of the locking element can be reduced and production costs can be reduced.
- the latching element can also be made by other methods which the person skilled in the art would find useful, e.g. by laser cutting, sawing etc.
- the latching element is elastically deformable. It is a structurally simple fixation of the attachment unit in the axial and / or circumferentially reachable. Additional spring elements can be saved and costs can be reduced.
- the locking element is formed tab-shaped.
- the locking element is structurally simple elastic executable and easy to shape.
- the latching element forms a tapering in the working direction receiving area.
- the attachment unit of the insert tool can be pressed during operation against the tapered receiving area, and it is accessible over a large contact surface a backlash-free backup of the attachment unit in the axial direction.
- the fastening unit has a centering opening.
- the insert tool can be advantageously centered on a centering collar of the entrainment device, and low-vibration operation of the insertion tool can be achieved.
- Fig. 1 shows an angle grinder 12 from above with a mounted in a housing 44, not shown electric motor.
- the angle grinding machine 12 can be guided via a first, in the housing 44 on the side facing away from an insert tool, extending in the longitudinal direction of the handle 46 and a second attached to a transmission housing 48 in the field of the insert tool, extending transversely to the longitudinal direction handle 50.
- a drive shaft 52 can be driven via a transmission, not shown in more detail, at whose end facing the application tool a driving device 14 is arranged ( Fig. 2 ).
- the entrainment device 14 has on a side facing the insertion tool on the drive shaft 52 firmly pressed driving flange 54 and on a side facing away from the application tool on the drive shaft 52 mounted detent disk 56.
- the detent disk 56 is in the remote from the insert tool axial direction 22 against a center arranged, formed by a coil spring spring element 42 slidably.
- the locking disk 56 has on its side facing the insert tool three circumferentially 26, 28 evenly spaced locking elements 40, which are each formed by a groove, and has for a positive rotational drive in the direction of rotation 30 to the driving flange 54 corresponding contour. Furthermore, in the locking disk 56 in a radially inner region three in the circumferential direction 26, 28 evenly distributed axial bores 92, 94, 96 are introduced.
- the driving flange 54 of the driving device 14 has three radially outwardly pointing driving elements 64, 66, 68, which are arranged distributed uniformly in the circumferential direction 26, 28 ( Fig. 2 ).
- the entraining elements 64, 66, 68, with their sides pointing in the direction of rotation 30, have a driving area 72, 74, 76 which tapers in the direction of rotation 30.
- three axial through holes 78, 80, 82 are introduced in the radially inner region, which are arranged distributed uniformly in the circumferential direction 26, 28.
- An unlocking button 70 engages in the assembled state with its pointing in the axial direction 22 pins 58, 60, 62, the axial through holes 78, 80, 82 of the driving flange 54 (FIG. Fig. 2 ).
- the pins 58, 60, 62 engage with their ends in the axial bores 92, 94, 96 of the locking disc 56 and latch with not shown hooks captive in this one.
- the insert tool has a fastening unit 10 formed by a sheet metal hub with a closed centering opening 38 (FIG. Fig. 2 ).
- the fixing unit 10 is fixedly connected to an abrasive 84 at its outer periphery.
- the fastening unit 10 In its operating position, the fastening unit 10 has three in the axial direction 22 to the driving device 14 facing, lug-shaped locking elements 16, 18, 20 for fixing.
- the elastically deformable locking elements 16, 18, 20 are distributed uniformly in the circumferential direction 26, 28 and are formed integrally with the fastening unit 10 by a punching process.
- an S-shaped configuration of the latching elements 16, 18, 20 is in each case a first, approximately in the axial direction 22 extending part for rotational drive in a first circumferential direction 26, an adjoining at an obtuse angle to the first part second part for securing in axial direction 22, 24 and a third, approximately in the axial direction 22 extending part for securing in a second circumferential direction 28 is reached.
- the locking elements 16, 18, 20 form in the direction of rotation 30 tapered receiving portions 32, 34, 36 for the driving elements 64, 66, 68 of the driving flange 54th
- the insert tool For assembly, the insert tool is pushed with its centering opening 38 on a centering collar, not shown, and centered on the closed centering 38.
- the latching elements 16, 18, 20 reach through clearances 86, 88, 90 between the driving elements 66, 68, 70 of the driving flange 54.
- Rotation of the insert tool in the circumferential direction 28 or counter to the direction of rotation 30 causes the receiving areas 32, 34 , 36 of the latching elements 16, 18, 20 come into operative connection with the tapered driving regions 72, 74, 76 of the driving elements 64, 66, 68.
- the locking disc 56 is in this case by sliding the locking elements 16, 18, 20 against the tapered, acting as ramps driving portions 72, 74, 76 of the driving flange 54 by the locking elements 16, 18, 20 against the spring force of the spring element 42 in the axial direction 22nd postponed.
- the locking disk 56 is driven by the spring force of the spring element 42, moved in the axial direction 24 against the driving flange 54 and the locking elements 16, 18, 20 engage positively with an audible click in the corresponding locking elements 40 of the locking disc 56 a.
- the insert tool or the fastening unit 10 is fixed against rotation on the drive shaft 52 in both circumferential directions 26, 28.
- an operator presses the unlocking button 70 axially in the direction 22 of the driving flange 54.
- the locking disk 56 is displaced axially against the spring force of the spring element 42 in the direction away from the inserting tool 22.
- the locking elements 16, 18, 20 of the insert tool are guided out of the locking elements 40 of the locking disc 56 and released.
- the insert tool can then be rotated in the direction of rotation 30, and the driving elements 64, 66, 68 of the driving flange 54 come with their driving areas 72, 74, 76 with the receiving areas 32, 34, 36 of the locking elements 16, 18, 20 disengaged.
- the insert tool or the fastening unit 10 can in the axial direction 24 of the Drive device 14 are deducted. After releasing the release button 70 slides this back to its original position.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
Die Erfindung geht aus von einem Einsatzwerkzeug mit einer Befestigungseinheit nach dem Oberbegriff des Anspruchs 1.The invention relates to an insert tool with a fastening unit according to the preamble of claim 1.
Aus der Druckschrift
Aus der Druckschrift
Die Erfindung geht aus von einem Einsatzwerkzeug mit einer Befestigungseinheit, die von einer Blechnabe gebildet ist, für eine Werkzeugmaschine mit einer Mitnahmevorrichtung, insbesondere für eine handgeführte Winkelschleifmaschine mit einer Mitnahmevorrichtung, wobei die Befestigungseinheit in einer Betriebsstellung zumindest ein zur Mitnahmevorrichtung weisendes Rastelement zur Fixierung aufweist, wobei mit dem Rastelement eine formschlüssige Sicherung der Befestigungseinheit in axialer Richtung und in Umfangsrichtung erreichbar ist.The invention relates to an insert tool with a fastening unit, which is formed by a sheet metal hub, for a machine tool with a driving device, in particular for a handheld angle grinder with a driving device, wherein the fastening unit has at least one latching element for fixing in an operating position, wherein with the locking element, a positive securing the fastening unit in the axial direction and in the circumferential direction is reached.
Es wird vorgeschlagen, daß das Rastelement S-förmig ausgestaltet ist, wobei das Rastelement einen ersten, sich annähernd in axialer Richtung erstreckenden Teil zur Drehmitnahme und/oder zur Sicherung in eine erste Umfangsrichtung aufweist, einen sich an den ersten Teil anschließenden zweiten Teil zur Sicherung in axialer Richtung aufweist und einen dritten, sich annähernd in axialer Richtung erstreckenden Teil zur Sicherung in eine zweite Umfangsrichtung aufweist. Es ist eine Befestigungseinheit zur Montage des Einsatzwerkzeugs in der Werkzeugmaschine erreichbar, bei der verlierbare Teile, insbesondere ein Spannflansch, eine Spannmutter usw., vorteilhaft vermieden werden können. Eine korrekte Montage des Einsatzwerkzeugs, insbesondere bei drehrichtungsgebundenen Einsatzwerkzeugen, ist durch die zur Mitnahmevorrichtung weisenden Rastelemente gewährleistet. Die zur Mitnahmevorrichtung weisenden Rastelemente bewirken eine intuitiv korrekte Montage des Einsatzwerkzeugs in einer korrekten Arbeitsposition. Zudem kann die Sicherheit für einen Bediener erhöht werden, indem ausschließlich Einsatzwerkzeuge montierbar sind, die vom Hersteller freigegeben wurden. Es ist ein sogenanntes geschlossenes System erreichbar. Durch die S-förmige Ausgestaltung des Rastelements kann ein erster, sich annähernd in axialer Richtung erstreckender Teil zur Drehmitnahme und/oder zur Sicherung in eine erste Umfangsrichtung genutzt werden. Ein sich im wesentlichen senkrecht an den ersten Teil anschließender zweiter Teil kann zur Sicherung in axialer Richtung und ein dritter, sich annähernd in axialer Richtung erstreckender Teil kann zur Sicherung in eine zweite Umfangsrichtung vorteilhaft genutzt werden. Durch eine formschlüssige Sicherung des Einsatzwerkzeugs in axialer Richtung und in Umfangsrichtung mit dem Rastelement kann vorteilhaft über ein einzelnes Rastelement ein Drehmoment übertragen, das Einsatzwerkzeug in axialer Richtung gesichert und eine Ablaufsicherung für das Einsatzwerkzeug beim Abschalten der Werkzeugmaschine erreicht werden. Bauteile, insbesondere Bauteile zur Ablaufsicherung, können eingespart und Kosten können reduziert werden.It is proposed that the latching element is configured S-shaped, wherein the latching element has a first, extending approximately in the axial direction part for rotational drive and / or securing in a first circumferential direction, a subsequent to the first part of the second part to secure has in the axial direction and a third, extending approximately in the axial direction extending part for securing in a second circumferential direction. It is achievable a mounting unit for mounting the insert tool in the machine tool, can be advantageously avoided in the loss of parts, in particular a clamping flange, a clamping nut, etc., A correct installation of the insert tool, in particular in direction of rotation-bound insert tools, is ensured by the latching elements pointing to the driving device. The detent elements facing the driving device cause an intuitively correct assembly of the insert tool in a correct working position. In addition, the safety for an operator be increased by only use tools can be mounted, which have been approved by the manufacturer. It is a so-called closed system accessible. Due to the S-shaped configuration of the latching element, a first part extending approximately in the axial direction can be used for rotational drive and / or for securing in a first circumferential direction. A second part which adjoins the first part substantially perpendicularly can be used for securing in the axial direction and a third part extending approximately in the axial direction can advantageously be used for securing in a second circumferential direction. By a positive locking of the insert tool in the axial direction and in the circumferential direction with the locking element can advantageously transmitted via a single locking element torque, the insert tool secured in the axial direction and a safety device for the insert tool when switching off the machine tool can be achieved. Components, in particular components for safety devices, can be saved and costs can be reduced.
Die Befestigungseinheit und das Rastelement können einstückig oder mehrteilig ausgeführt sein. Sind die Befestigungseinheit und das Rastelement mehrteilig ausgeführt, können das Rastelement und die Befestigungseinheit aus verschiedenen Materialien gefertigt sein. Die verschiedenen Materialien können auf spezielle Anforderungen bzw. auf verschiedene Belastungen, wie z.B. auf eine Scher-, Druck- und/oder auf eine Zugbelastung ausgelegt und entsprechend dimensioniert werden. Besonders vorteilhaft ist das Rastelement jedoch einstückig mit der Befestigungseinheit ausgebildet. Es ist eine Befestigungseinheit erreichbar, die einfach gestaltet und kostengünstig gefertigt werden kann. Zusätzliche Baumteile, Kosten und Montagezeit können vermieden werden.The fastening unit and the locking element can be made in one piece or in several parts. If the fastening unit and the locking element are designed in several parts, the locking element and the fastening unit can be made of different materials. The different materials can be adapted to specific requirements or to different loads, such as a shear, compression and / or tensile load be designed and dimensioned accordingly. However, the locking element is particularly advantageously formed in one piece with the fastening unit. It is a mounting unit accessible, which can be easily designed and manufactured inexpensively. Additional tree parts, costs and assembly time can be avoided.
Ist das Rastelement durch einen Stanzvorgang an die Befestigungseinheit angeformt, können das Rastelement und die Befestigungseinheit in einem Arbeitsgang aus einer Gesamteinheit hergestellt und das Rastelement in seine Form gebracht werden. Fertigungsschritte, wie insbesondere Freischneiden und Biegen des Rastelements, können reduziert und Produktionskosten können gesenkt werden. Das Rastelement kann jedoch auch durch andere Verfahren, die der Fachmann als sinnvoll erachtet, hergestellt werden, wie z.B. durch Laserschneiden, Sägen usw.If the latching element is formed by a punching operation on the fastening unit, the latching element and the fastening unit can be made in one operation from an entire unit and the locking element can be brought into its shape. Manufacturing steps, such as in particular free cutting and bending of the locking element can be reduced and production costs can be reduced. However, the latching element can also be made by other methods which the person skilled in the art would find useful, e.g. by laser cutting, sawing etc.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, daß das Rastelement elastisch verformbar ist. Es ist eine konstruktiv einfache Fixierung der Befestigungseinheit in axialer und/oder in Umfangsrichtung erreichbar. Zusätzliche Federelemente können eingespart und Kosten können reduziert werden.In a further embodiment of the invention, it is proposed that the latching element is elastically deformable. It is a structurally simple fixation of the attachment unit in the axial and / or circumferentially reachable. Additional spring elements can be saved and costs can be reduced.
Ferner wird vorgeschlagen, daß das Rastelement laschenförmig ausgebildet ist. Das Rastelement ist konstruktiv einfach elastisch ausführbar und einfach formbar.It is also proposed that the locking element is formed tab-shaped. The locking element is structurally simple elastic executable and easy to shape.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, daß das Rastelement einen sich in Arbeitsrichtung verjüngenden Aufnahmebereich bildet. Vorteilhaft kann die Befestigungseinheit des Einsatzwerkzeugs während des Betriebs gegen den sich verjüngenden Aufnahmebereich gedrückt werden, und es ist über eine große Anlagefläche eine spielfreie Sicherung der Befestigungseinheit in axialer Richtung erreichbar.In a further embodiment of the invention it is proposed that the latching element forms a tapering in the working direction receiving area. Advantageously, the attachment unit of the insert tool can be pressed during operation against the tapered receiving area, and it is accessible over a large contact surface a backlash-free backup of the attachment unit in the axial direction.
In einer weiteren Ausgestaltung der Erfindung wird vorgeschlagen, daß die Befestigungseinheit eine Zentrieröffnung aufweist. Das Einsatzwerkzeug kann an einem Zentrierbund der Mitnahmevorrichtung vorteilhaft zentriert werden, und es ist ein vibrationsarmer Betrieb des Einsatzwerkzeugs erreichbar.In a further embodiment of the invention, it is proposed that the fastening unit has a centering opening. The insert tool can be advantageously centered on a centering collar of the entrainment device, and low-vibration operation of the insertion tool can be achieved.
Ist ein korrespondierendes Rastelement an der Werkzeugaufnahme gegen ein Federelement bewegbar, kann ein vorteilhafter Formschluß mit einer großen Überdeckung und eine sichere Ablaufsicherung des Einsatzwerkzeugs in Umfangsrichtung erreicht werden. Ferner können beim Aufsetzen und Verdrehen des Einsatzwerkzeugs auf einer Werkzeugaufnahme das Rastelement des Einsatzwerkzeugs und das korrespondierende Rastmittel mit einer deutlich hörbaren akustischen Rückmeldung ineinander einrasten, und dem Bediener kann eine korrekte Fixierung des Einsatzwerkzeugs übermittelt werden.If a corresponding locking element on the tool holder movable against a spring element, an advantageous positive engagement with a large overlap and a safe flow safety of the insert tool can be achieved in the circumferential direction. Further, when placing and rotating the insert tool on a tool holder, the locking element of the insert tool and the corresponding locking means engage with a clearly audible acoustic feedback into each other, and the operator can be transmitted a correct fixation of the insert tool.
Ferner wird eine Werkzeugaufnahme gemäss Anspruch 7 vorgeschlagen.Furthermore, a tool holder according to claim 7 is proposed.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.Further advantages emerge from the following description of the drawing. In the drawing, an embodiment of the invention is shown.
Es zeigen:
- Fig. 1
- einen Winkelschleifer von oben und
- Fig. 2
- eine Explosionszeichnung einer Werkzeugaufnahme und eines Einsatzwerkzeugs.
- Fig. 1
- an angle grinder from above and
- Fig. 2
- an exploded view of a tool holder and an insert tool.
Mit dem Elektromotor ist über ein nicht näher dargestelltes Getriebe eine Antriebswelle 52 antreibbar, an deren zum Einsatzwerkzeug weisenden Ende eine Mitnahmevorrichtung 14 angeordnet ist (
Die Rastscheibe 56 weist an ihrer zum Einsatzwerkzeug weisenden Seite drei in Umfangsrichtung 26, 28 gleichmäßig verteilte Rastelemente 40 auf, die von jeweils einer Nut gebildet sind, und besitzt für eine formschlüssige Drehmitnahme in Drehrichtung 30 eine zum Mitnahmeflansch 54 korrespondierende Kontur. Des weiteren sind in die Rastscheibe 56 in einem radial inneren Bereich drei in Umfangsrichtung 26, 28 gleichmäßig verteilte Axialbohrungen 92, 94, 96 eingebracht.The
Der Mitnahmeflansch 54 der Mitnahmevorrichtung 14 weist drei radial nach außen weisende Mitnahmeelemente 64, 66, 68 auf, die in Umfangsrichtung 26, 28 gleichmäßig verteilt angeordnet sind (
Eine Entriegelungstaste 70 durchgreift im montierten Zustand mit ihren in axialer Richtung 22 weisenden Stiften 58, 60, 62 die axialen Durchgangsbohrungen 78, 80, 82 des Mitnahmeflansches 54 (
Das Einsatzwerkzeug besitzt eine von einer Blechnabe gebildete Befestigungseinheit 10 mit einer geschlossenen Zentrieröffnung 38 (
Durch eine S-förmige Ausgestaltung der Rastelemente 16, 18, 20 wird jeweils ein erster, sich annähernd in axialer Richtung 22 erstreckender Teil zur Drehmitnahme in eine erste Umfangsrichtung 26, ein sich in einem stumpfen Winkel an den ersten Teil anschließender zweiter Teil zur Sicherung in axialer Richtung 22, 24 und ein dritter, sich annähernd in axialer Richtung 22 erstreckender Teil zur Sicherung in eine zweite Umfangsrichtung 28 erreicht. Die Rastelemente 16, 18, 20 bilden in Drehrichtung 30 sich verjüngende Aufnahmebereiche 32, 34, 36 für die Mitnahmeelemente 64, 66, 68 des Mitnahmeflansches 54.By an S-shaped configuration of the latching
Zur Montage wird das Einsatzwerkzeug mit seiner Zentrieröffnung 38 auf einen nicht näher dargestellten Zentrierbund aufgeschoben und über die geschlossene Zentrieröffnung 38 zentriert. Bei der Montage durchgreifen die Rastelemente 16, 18, 20 Freiräume 86, 88, 90 zwischen den Mitnahmeelementen 66, 68, 70 des Mitnahmeflansches 54. Ein Verdrehen des Einsatzwerkzeugs in Umfangsrichtung 28 bzw. entgegen der Drehrichtung 30 bewirkt, daß die Aufnahmebereiche 32, 34, 36 der Rastelemente 16, 18, 20 mit den sich verjüngenden Mitnahmebereichen 72, 74, 76 der Mitnahmeelemente 64, 66, 68 in Wirkverbindung kommen. Die Rastscheibe 56 wird hierbei durch das Aufschieben der Rastelemente 16, 18, 20 entgegen der sich verjüngenden, als Rampen wirkenden Mitnahmebereiche 72, 74, 76 des Mitnahmeflansches 54 durch die Rastelemente 16, 18, 20 entgegen der Federkraft des Federelements 42 in axialer Richtung 22 verschoben.For assembly, the insert tool is pushed with its centering
Ist eine Endlage in Umfangsrichtung 28 erreicht, wird die Rastscheibe 56, angetrieben durch die Federkraft des Federelements 42, in axialer Richtung 24 gegen den Mitnahmeflansch 54 bewegt und die Rastelemente 16, 18, 20 rasten formschlüssig mit einem hörbaren Klick in den korrespondierenden Rastelementen 40 der Rastscheibe 56 ein. Das Einsatzwerkzeug bzw. die Befestigungseinheit 10 ist in beide Umfangsrichtungen 26, 28 verdrehsicher an der Antriebswelle 52 fixiert.If an end position in the
Durch den Formschluß der Rastelemente 16, 18, 20 mit den jeweiligen Rastelementen 40 der Rastscheibe 56 wird ein Ablaufen des Einsatzwerkzeugs aufgrund der Massenträgheit beim Abschalten vermieden. Einen spielfreien, sicheren Halt der Befestigungseinheit 10 in axialer Richtung 22, 24 wird durch die sich in Drehrichtung 30 verjüngenden Mitnahmebereiche 72, 74, 76 der Mitnahmeelemente 64, 66, 68 gewährleistet. Die Rastelemente 16, 18, 20 sichern somit gleichzeitig formschlüssig die Befestigungseinheit 10 des Einsatzwerkzeugs in axialer und in Umfangsrichtung 22, 24, 26, 28.Due to the positive engagement of the latching
Zur Demontage des Einsatzwerkzeugs bzw. der Befestigungseinheit 10 drückt ein Bediener die Entriegelungstaste 70 axial in Richtung 22 des Mitnahmeflansches 54. Die Rastscheibe 56 wird entgegen der Federkraft des Federelements 42 axial in die vom Einsatzwerkzeug abgewandte Richtung 22 verschoben. Die Rastelemente 16, 18, 20 des Einsatzwerkzeugs werden dabei aus den Rastelementen 40 der Rastscheibe 56 geführt und freigegeben. Das Einsatzwerkzeug kann anschließend in Drehrichtung 30 verdreht werden, und die Mitnahmeelemente 64, 66, 68 des Mitnahmeflansches 54 kommen mit ihren Mitnahmebereichen 72, 74, 76 mit den Aufnahmebereichen 32, 34, 36 der Rastelemente 16, 18, 20 außer Eingriff. Das Einsatzwerkzeug bzw. die Befestigungseinheit 10 kann in axialer Richtung 24 von der Mitnahmevorrichtung 14 abgezogen werden. Nach Loslassen der Entriegelungstaste 70 gleitet diese wieder in ihre Ausgangslage zurück.To disassemble the insert tool or the
- 1010
- Befestigungseinheitfixing unit
- 1212
- Werkzeugmaschinemachine tool
- 1414
- Mitnahmevorrichtungdriving device
- 1616
- Rastelementlocking element
- 1818
- Rastelementlocking element
- 2020
- Rastelementlocking element
- 2222
- axiale Richtungaxial direction
- 2424
- axiale Richtungaxial direction
- 2626
- Umfangsrichtungcircumferentially
- 2828
- Umfangsrichtungcircumferentially
- 3030
- Drehrichtungdirection of rotation
- 3232
- Aufnahmebereichreception area
- 3434
- Aufnahmebereichreception area
- 3636
- Aufnahmebereichreception area
- 3838
- Zentrieröffnungcentering
- 4040
- Rastelementlocking element
- 4242
- Federelementspring element
- 4444
- Gehäusecasing
- 4646
- Handgriffhandle
- 4848
- Getriebegehäusegearbox
- 5050
- Handgriffhandle
- 5252
- Antriebswelledrive shaft
- 5454
- Mitnahmeflanschdriving flange
- 5656
- Rastscheibelocking disc
- 5858
- Stiftpen
- 6060
- Stiftpen
- 6262
- Stiftpen
- 6464
- Mitnahmeelementdriving element
- 6666
- Mitnahmeelementdriving element
- 6868
- Mitnahmeelementdriving element
- 7070
- Entriegelungstasterelease
- 7272
- Mitnahmebereichdriving region
- 7474
- Mitnahmebereichdriving region
- 7676
- Mitnahmebereichdriving region
- 7878
- DurchgangsbohrungThrough Hole
- 8080
- DurchgangsbohrungThrough Hole
- 8282
- DurchgangsbohrungThrough Hole
- 8484
- Schleifmittelabrasive
- 8686
- Freiraumfree space
- 8888
- Freiraumfree space
- 9090
- Freiraumfree space
- 9292
- Axialbohrungaxial bore
- 9494
- Axialbohrungaxial bore
- 9696
- Axialbohrungaxial bore
Claims (9)
- Application tool having a fastening unit (10), which is formed by a sheet-metal hub, for a power tool (12) having a driving device (14), in particular for a portable angle grinder having a driving device (14), wherein the fastening unit (10) has, in an operating position, at least one latching element (16, 18, 20), directed towards the driving device (14), for fixing, wherein form-fitting securing of the fastening unit (10) in the axial direction (22, 24) and in the circumferential direction (26, 28) is achievable by way of the latching element (16, 18, 20), characterized in that the latching element (16, 18, 20) is configured in an S-shaped manner, wherein the latching element (16, 18, 20) has a first part, extending approximately in the axial direction (22), for rotary driving and/or for securing in a first circumferential direction (26), a second part, adjoining the first part, for securing in the axial direction (22, 24) and a third part, extending approximately in the axial direction (22), for securing in a second circumferential direction (28).
- Application tool according to Claim 1, characterized in that the latching element (16, 18, 20) is formed in one piece with the fastening unit (10).
- Application tool according to either of the preceding claims, characterized in that the latching element (16, 18, 20) is elastically deformable.
- Application tool according to one of the preceding claims, characterized in that the latching element (16, 18, 20) is formed in a tab-like manner.
- Application tool according to Claim 1, characterized in that the latching element (16, 18, 20) forms a receiving region (32, 34, 36) that narrows in the direction of rotation (30).
- Application tool according to one of the preceding claims, characterized in that the fastening unit (10) has a centring opening (38).
- Tool holder having a driving device (14) for an application tool according to one of the preceding claims, wherein the driving device (14) comprises a driving flange (54) and a latching disc (56) and wherein the driving flange (54) has at least one driving element (64, 66, 68) that is directed radially outwards, characterized in that the latching disc (56), for form-fitting rotary driving in one direction of rotation (30), has a contour corresponding to the driving flange (54), and in that the latching disc (56) has at least one corresponding latching element (40) for form-fitting connection to a latching element (16, 18, 20) of the application tool in order to avoid running off of the application tool on account of inertia upon switching off, wherein the latching element (40) is formed by a groove and wherein the side of the driving element (64, 66, 68) that is directed in the direction of rotation (30) forms a driving region (72, 74, 76) which narrows in the direction of rotation (30).
- Tool holder according to Claim 7, characterized in that the corresponding latching element (40) is movable against a spring element (42).
- System having a tool holder according to Claim 7 or 8 and having an application tool according to one of Claims 1 to 6.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10225051 | 2002-06-06 | ||
DE2002125051 DE10225051A1 (en) | 2002-06-06 | 2002-06-06 | Insert tool with a fastening unit |
PCT/DE2003/001230 WO2003103897A2 (en) | 2002-06-06 | 2003-04-11 | Insert tool comprising an attaching unit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1513651A2 EP1513651A2 (en) | 2005-03-16 |
EP1513651B1 true EP1513651B1 (en) | 2013-01-09 |
Family
ID=29718866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03724866A Expired - Lifetime EP1513651B1 (en) | 2002-06-06 | 2003-04-11 | Insert tool comprising an attaching unit |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1513651B1 (en) |
CN (1) | CN1630571B (en) |
DE (1) | DE10225051A1 (en) |
WO (1) | WO2003103897A2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7343841B2 (en) | 2002-02-15 | 2008-03-18 | Black & Decker Inc. | Blade clamp assembly |
DE102006021969A1 (en) * | 2006-05-04 | 2007-11-08 | C. & E. Fein Gmbh | oscillatory |
CN101342677B (en) * | 2007-07-11 | 2011-08-03 | 苏州宝时得电动工具有限公司 | Hand-hold power tool |
DE102008023324A1 (en) * | 2008-05-13 | 2009-11-19 | Aeg Electric Tools Gmbh | Protective hood for a power tool, in particular an angle grinder and power tool with such a protective hood |
DE102010013102A1 (en) * | 2010-03-29 | 2011-09-29 | Robert Bosch Gmbh | Discharge safety device |
EP2598285A4 (en) * | 2010-07-29 | 2013-12-25 | Myles Graham Kelly | Plate locking mechanism |
DE102013208691A1 (en) * | 2013-05-13 | 2014-11-13 | Robert Bosch Gmbh | Tool clamping device |
RU2736767C2 (en) | 2016-08-22 | 2020-11-19 | Роберт Бош Гмбх | Quick-clamping device for portable process machine, in particular for angular grinder |
WO2018036920A1 (en) * | 2016-08-22 | 2018-03-01 | Robert Bosch Gmbh | Quick tensioning device for a portable machine tool, in particular for an angle grinding machine |
JP6625245B2 (en) * | 2016-12-16 | 2019-12-25 | ミレェテック カンパニー リミテッドMiretec Co., Ltd. | Rotating device |
CN111136581A (en) * | 2018-11-05 | 2020-05-12 | 韩建英 | Special cutting piece of fast loading and unloading |
CN111660193B (en) * | 2020-06-08 | 2021-08-10 | 苏州高之仙自动化科技有限公司 | Polishing head assembly and stone polishing robot |
CN111421411B (en) * | 2020-06-08 | 2020-10-16 | 上海高仙自动化科技发展有限公司 | Cleaning head and intelligent cleaning robot |
CN111546159B (en) * | 2020-06-08 | 2021-06-25 | 上海高仙自动化科技发展有限公司 | Polishing head assembly and stone polishing robot |
KR102636796B1 (en) * | 2022-02-08 | 2024-02-14 | 최윤석 | Grinder of disk fixture |
DE102022203295A1 (en) | 2022-04-01 | 2023-10-05 | Janser Gmbh | Tool connecting device for a processing machine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1830362A (en) * | 1930-01-15 | 1931-11-03 | Automatic Floor Waxing Machine | Brush attachment for floor treating machines |
US2561279A (en) * | 1945-07-27 | 1951-07-17 | William E Holt | Floor maintenance machine |
US2518279A (en) * | 1947-06-30 | 1950-08-08 | Albert F Bruder | Drive connection for a shoe polisher |
US2541526A (en) * | 1950-05-19 | 1951-02-13 | Hendrik W Lundquist | Clutch for floor conditioning machines |
US3266206A (en) * | 1962-07-03 | 1966-08-16 | Allied Chem | Insulated built up roof and insulation therefor |
US3266200A (en) * | 1964-06-04 | 1966-08-16 | Merit Products Inc | Abrasive device |
FR2063429A5 (en) * | 1969-10-14 | 1971-07-09 | Cybeo Aldigero | |
US5347673A (en) * | 1992-10-01 | 1994-09-20 | Black & Decker Inc. | Quick change pad assembly for orbital polisher |
DE10017458A1 (en) * | 2000-04-07 | 2001-10-18 | Bosch Gmbh Robert | Tool holder for a grinding machine has insert tool actively connected to drive shaft through follower device with positive engagement through spring-tensioned detent element |
-
2002
- 2002-06-06 DE DE2002125051 patent/DE10225051A1/en not_active Ceased
-
2003
- 2003-04-11 CN CN03803584.7A patent/CN1630571B/en not_active Expired - Fee Related
- 2003-04-11 WO PCT/DE2003/001230 patent/WO2003103897A2/en not_active Application Discontinuation
- 2003-04-11 EP EP03724866A patent/EP1513651B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CN1630571B (en) | 2011-01-26 |
EP1513651A2 (en) | 2005-03-16 |
CN1630571A (en) | 2005-06-22 |
DE10225051A1 (en) | 2004-01-08 |
WO2003103897A3 (en) | 2004-02-05 |
WO2003103897A2 (en) | 2003-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1513651B1 (en) | Insert tool comprising an attaching unit | |
EP1414620B1 (en) | System with a tool holding fixture | |
EP1274541B1 (en) | Tool mounting | |
EP1274544B1 (en) | Receptacle for grinder tools | |
EP1404490B1 (en) | Attachment for grinder | |
EP1274548B1 (en) | Machine tool holding device for a circular saw blade | |
EP1339528B1 (en) | Hand tool comprising a sensor for emitting a signal when the tool attachment is replaced | |
DE10017458A1 (en) | Tool holder for a grinding machine has insert tool actively connected to drive shaft through follower device with positive engagement through spring-tensioned detent element | |
EP1684944B1 (en) | Tool receiving device for a machine tool, comprising an at least essentially disk-shaped hub | |
EP1507629B1 (en) | System comprising a tool retainer | |
EP4186664A1 (en) | Tool device for a hand-held power tool | |
DE102007010182A1 (en) | Gearing arrangement for a hammer drill and/or chisel hammer comprises a spring element arranged on a driven unit in front of a toothed wheel unit and a locking element along a power flow direction of the driven unit | |
DE10225583A1 (en) | Tool holder and insert tool | |
DE102010038509A1 (en) | Hand tool | |
EP2189244B1 (en) | Angle grinder with protective covering | |
EP1697086B1 (en) | Insertion tool for an angle grinder | |
EP1684943B1 (en) | Tool holding fixture | |
DE102009028572A1 (en) | Adapter for e.g. electric machine tool for converting oscillating rotary motion of drive shaft into rotational movement of driven shaft, has adapter part whose direction is interrupted or continued based on direction change of driven shaft |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20050107 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
RBV | Designated contracting states (corrected) |
Designated state(s): CH DE GB LI |
|
17Q | First examination report despatched |
Effective date: 20071129 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE GB LI |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 50314660 Country of ref document: DE Effective date: 20130307 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20131010 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 50314660 Country of ref document: DE Effective date: 20131010 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20170425 Year of fee payment: 15 Ref country code: CH Payment date: 20170425 Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20180411 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180411 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180430 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20190627 Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50314660 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201103 |