WO2011072919A1 - Outil pour une machine-outil portative - Google Patents

Outil pour une machine-outil portative Download PDF

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Publication number
WO2011072919A1
WO2011072919A1 PCT/EP2010/066009 EP2010066009W WO2011072919A1 WO 2011072919 A1 WO2011072919 A1 WO 2011072919A1 EP 2010066009 W EP2010066009 W EP 2010066009W WO 2011072919 A1 WO2011072919 A1 WO 2011072919A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding
tool
side edge
cutting particles
grinding plate
Prior art date
Application number
PCT/EP2010/066009
Other languages
German (de)
English (en)
Inventor
Martin Kocher
Olivier Rey
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP10778899A priority Critical patent/EP2512735A1/fr
Priority to CN2010800572227A priority patent/CN102655982A/zh
Publication of WO2011072919A1 publication Critical patent/WO2011072919A1/fr

Links

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
    • 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
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/06—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic or mixture of metals with ceramic materials, e.g. hard metals, "cermets", cements
    • 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
    • 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
    • B24D7/18—Wheels of special form

Definitions

  • the invention relates to a tool for a hand tool according to the preamble of claim 1.
  • an abrasive body for a hand tool which is formed triangular with concave side edges and is used in hand tool machines, which are known as delta grinder.
  • the abrasive body has an end-side, planar processing surface facing downwardly with respect to the housing of the tool and provided with a plurality of cutting bodies, which according to a first embodiment of EP 0 280 786 A2 are made in one piece with the grinding plate and according to further embodiments this document are executed as diamond grains, which are soldered onto the grinding plate.
  • the triangular basic geometry of the abrasive body allows a surface treatment in corner areas, since the front in the machine direction, acute-angled edge of the grinding wheel for grinding a can be led into a corner extending workpiece surface.
  • the tool according to the invention is used in hand tool machines, which preferably drive the tool rotationally and / or oscillatingly.
  • the hand tool machines are provided for a grinding workpiece machining, such as delta or angle grinder.
  • the hand tool machines are, in particular, electric motor driven machine tools.
  • the tool for the hand tool comprises a grinding plate with an at least approximately flat working surface, are applied to the grinding or cutting particles.
  • at least one side edge of the grinding plate which encloses an angle with the processing surface, is also provided with grinding or cutting particles.
  • the machining is carried out either by placing the working surface of the grinding plate on the workpiece surface and approaching to the limiting side surface, which is also processed by the side edge of the grinding plate. It is also possible to set the working surface of the grinding plate on the side wall and to approach the side edge of the grinding plate of the base. In both cases, the angle range, possibly also a corner area, completely subjected to a processing, there are no gaps in the surface to be machined.
  • the grinding or cutting particles can either be made in one piece with the grinding plate or applied as separate particles on the grinding plate and connected to this, for example by means of soldering or gluing.
  • these are designed, for example, as carbide grains or as diamond grains.
  • the same grinding or cutting particles are used both for the working surface and for the side edge, which are also applied in the same way to the grinding plate or connected thereto.
  • the abrasive or cutting particles at the processing surface and at the side edge may differ in one or more parameters, such as grain size.
  • either the same density of grinding or cutting particles or a different density can be provided on the processing surface and on the side edge.
  • both a uniform distribution of the grinding or cutting particles on the working surface and a non-uniform distribution is possible; The same applies to the side edge.
  • the grinding plate is preferably made angular and has an at least triangular base surface, so that in accordance with three side edges between the corners of the grinding plate are given, each of the side edges with the
  • each of the side edges is provided with grinding or cutting particles, wherein in principle also embodiments are possible in which only a smaller number of side edges such particles, for example, in the case of a triangular base surface (delta grinding plate) only the two of the front Tip adjacent side edges.
  • the grinding plate is not limited to an angular base, but also round grinding plates are possible, in which case only a circumferential side edge is given, but also occupies an angle with the frontal processing surface.
  • mixed forms are also possible.
  • a segment grinding plate which has a round cross-sectional area over a certain angle segment and is provided in the region of the cut-out segment with corners or edges. This segment-shaped grinding plate is preferably occupied only in the region of the radially outer side edge with grinding or cutting particles.
  • the angle between the side edge and the processing surface is usually 90 °, in principle also angles not equal to 90 ° come into consideration, in particular angles smaller than 90 °, for example 80 ° or 85 °, to ensure that the grinding plate also can reach the angular range or corner region of the workpiece to be machined.
  • At least one side edge is curved convexly, wherein expediently all the side edges have a convex curvature.
  • a straight-line design of the side edge or a combination of a straight side edge and a convex side edge is also possible.
  • abrasive grinding or grinding is also possible on at least one, preferably opposite, working surface extending along one side edge and facing away from the working surface.
  • the partial surface is formed in a strip shape along the side edge.
  • Fig. 1 is a plan view of a triangular-shaped grinding plate for a hand tool, which has a flat processing surface with grinding or cutting particles, in addition, the peripheral side edges are occupied with cutting or abrasive particles, the grinding plate in a perspective view.
  • the same components are provided with the same reference numerals.
  • the grinding plate 1 shown in FIGS. 1 and 2 forms a tool for a hand tool, in particular for a delta grinder.
  • the grinding plate 1 has a triangular base body and is connected via a centrally located interface adapter, which is fixedly connected to the grinding plate 1, with a tool shaft with the power tool. In operation, the grinding plate 1 exerts an oscillating rotational movement.
  • the triangular-shaped grinding plate 1 has three side edges 3, which are convexly curved outwardly.
  • the front side facing away from the viewer forms a planar processing surface, which rests on the workpiece for processing during operation.
  • the three side edges 3 each assume an angle with the processing surface 4, which is preferably at most 90 °.
  • Both the three side edges 3 and the frontal processing surface 4 are provided with grinding or cutting particles 5.
  • such cutting or abrasive particles 5 are shown by way of example on one of the side edges 3 and in dashed representation on the lower working surface 4 facing away from the observer. It is preferred that all three cutting edges 3 are provided with such grinding or cutting particles 5, wherein in principle also embodiments are contemplated in which only one or two cutting edges are occupied with such grinding or cutting particles 5.
  • the grinding or cutting particles 5 are either made in one piece with the grinding plate, which consists in particular of hard metal, or as separate grains, which are connected to the grinding plate, for example by means of soldering.
  • FIG. 2 furthermore shows an optional partial area 6, which is identified by a dashed line and which is opposite the processing area 4.
  • the partial surface 6 extends in this example in a strip-like manner along one of the three side edges 3.
  • partial surfaces 6 are provided along several or particularly preferably along all lateral edges. On the part surface 6 while grinding or cutting particles 5 are arranged, which allows a processing of an undercut surface advantageous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un outil pour une machine-outil portative, comportant une plaque de frottement qui présente une surface d'usinage au moins approximativement plane sur laquelle sont disposées des particules de meulage et de coupe. Selon l'invention, au moins une arête latérale de la plaque de frottement est également dotée de particules de coupe.
PCT/EP2010/066009 2009-12-17 2010-10-25 Outil pour une machine-outil portative WO2011072919A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10778899A EP2512735A1 (fr) 2009-12-17 2010-10-25 Outil pour une machine-outil portative
CN2010800572227A CN102655982A (zh) 2009-12-17 2010-10-25 用于手持式工具机的刀具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910054812 DE102009054812A1 (de) 2009-12-17 2009-12-17 Werkzeug für eine Handwerkzeugmaschine
DE102009054812.2 2009-12-17

Publications (1)

Publication Number Publication Date
WO2011072919A1 true WO2011072919A1 (fr) 2011-06-23

Family

ID=43428523

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/066009 WO2011072919A1 (fr) 2009-12-17 2010-10-25 Outil pour une machine-outil portative

Country Status (4)

Country Link
EP (1) EP2512735A1 (fr)
CN (1) CN102655982A (fr)
DE (1) DE102009054812A1 (fr)
WO (1) WO2011072919A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103190692A (zh) * 2013-04-07 2013-07-10 湖北烟草金叶复烤有限责任公司 一种带刃口打刀的烟叶打叶机
DE102014116596A1 (de) * 2014-11-13 2016-05-19 C. & E. Fein Gmbh Dreieckschleifplatte mit abgeflachten Spitzen
DE102015216615A1 (de) * 2015-08-31 2017-03-02 Robert Bosch Gmbh Schleifteller für ein handgeführtes Elektrowerkzeug, sowie Elektrowerkzeugsystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280786A2 (fr) 1987-03-04 1988-09-07 C. & E. FEIN GmbH & Co. Elément abrasif pour dispositifs de meulage motorisés
DE19514362A1 (de) * 1994-04-18 1995-10-19 Wahl Clipper Corp Sich hin- und herbewegendes Handwerkzeug mit mehrteiligen Aufsätzen
EP1595645A1 (fr) * 2002-12-19 2005-11-16 Kabushiki Kaisha Miyanaga Disque diamant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10180639A (ja) * 1996-12-27 1998-07-07 Sankyo Daiyamondo Kogyo Kk 電着ダイヤモンドホイール
DE102007036951A1 (de) * 2007-08-04 2009-02-05 Eva Hoffmann Trennblatt und Verfahren zur Herstellung
JP5527926B2 (ja) * 2007-08-10 2014-06-25 エヌシーダイヤモンド株式会社 鉄鋼加工用工具

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280786A2 (fr) 1987-03-04 1988-09-07 C. & E. FEIN GmbH & Co. Elément abrasif pour dispositifs de meulage motorisés
DE19514362A1 (de) * 1994-04-18 1995-10-19 Wahl Clipper Corp Sich hin- und herbewegendes Handwerkzeug mit mehrteiligen Aufsätzen
EP1595645A1 (fr) * 2002-12-19 2005-11-16 Kabushiki Kaisha Miyanaga Disque diamant

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2512735A1 *

Also Published As

Publication number Publication date
EP2512735A1 (fr) 2012-10-24
DE102009054812A1 (de) 2011-06-22
CN102655982A (zh) 2012-09-05

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