EP2440371A1 - Outil de meulage et/ou de polissage et procédé de réalisation - Google Patents

Outil de meulage et/ou de polissage et procédé de réalisation

Info

Publication number
EP2440371A1
EP2440371A1 EP10723024A EP10723024A EP2440371A1 EP 2440371 A1 EP2440371 A1 EP 2440371A1 EP 10723024 A EP10723024 A EP 10723024A EP 10723024 A EP10723024 A EP 10723024A EP 2440371 A1 EP2440371 A1 EP 2440371A1
Authority
EP
European Patent Office
Prior art keywords
grinding
polishing
radial
region
rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10723024A
Other languages
German (de)
English (en)
Other versions
EP2440371B1 (fr
Inventor
Harald Russ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dronco AG
Original Assignee
Dronco AG
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 Dronco AG filed Critical Dronco AG
Publication of EP2440371A1 publication Critical patent/EP2440371A1/fr
Application granted granted Critical
Publication of EP2440371B1 publication Critical patent/EP2440371B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00—Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/04—Zonally-graded surfaces
    • 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
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Definitions

  • the invention relates to a grinding and / or polishing tool and a method for its production.
  • WO 2007/032517 discloses a polishing apparatus with a removable polishing plate.
  • the surface of the polishing plate has two areas with different roughnesses. The areas are arranged concentrically in a variant.
  • US 6,309,282 discloses a polishing pad having two processing areas. A first processing area differs from a second processing area in its abrasive properties. At least one of the two areas has a multiplicity of abrasive elements.
  • DE 601 10 225 T2 has a planar disc-shaped support structure on which a number of annular grinding or polishing surfaces are arranged concentrically.
  • the individual grinding or polishing surfaces can have different abrasive properties, d. H. they are provided with different grinding or polishing grain.
  • the invention is based on the object of specifying a new grinding and / or polishing tool and a method for its production.
  • the invention is based on the idea of forming different grinding or polishing regions on at least two different separate carrier bodies, which can be assembled or assembled into a carrier structure and complement each other by arranging the grinding or polishing regions in different radial regions or annular regions.
  • This has the advantage that different grinding or polishing areas or materials can be easily combined in different combinations or in a modular system for different functionalities and, especially with different wear, can be exchanged separately.
  • a manufacturing method or a production facility for a tool having a carrier body with only one grinding or polishing area can be used, which is simpler than a specific method for producing a carrier body with two grinding or polishing areas.
  • At least two carrier bodies have different radial dimensions or diameters relative to one another in the radial direction with respect to the axis of rotation.
  • at least one radially outer radial region can be mounted on a radially larger carrier body and at least one radially inner radial region on a radially smaller carrier body.
  • a radial region of at least one carrier body preferably lies in a radially outer edge region of the carrier body.
  • the at least two carrier bodies are arranged intermeshing or mountable and / or at least in one direction, in particular in the radial direction, positively or at least limited in play or slightly spaced connectable or connected. This ensures in a simple manner that the position of the two carrier body does not slip, and the reliability of the entire tool is increased and simplifies the installation of the tool.
  • at least two support bodies of the support structure abut one another in the mounted or connected state, in particular in the radial direction, and / or are mounted on one another in a form-fitting manner. For example, within the next radially outer radial region, a smaller carrier body can also rest against the associated larger carrier body with its outer or side edges.
  • a frictional connection is possible at least in one direction, in particular in the axial direction parallel to the axis of rotation.
  • at least two support bodies are releasably connected to each other, in particular by fastening or clamping or clamping on a rotary shaft of a drive or a tool machine, in particular a hand-held machine tool such as an angle grinder.
  • This connection can be made quickly and easily, as well as solve quickly and easily.
  • the at least two carrier bodies each have an opening concentric with the axis of rotation, wherein the carrier structure composed of the carrier bodies is fastened or fastened to the machine tool by introducing or passing a rotary shaft into or through these openings.
  • each carrier body has exactly one radial area with a grinding or polishing area attached there. This has the advantage that the assembly of the support structure by means of simple modules, here the support body, takes place.
  • Each carrier body thus has a specific grinding or polishing surface, which varies in size and / or inclination and / or their abrasive properties.
  • the user can now determine the width of the grinding or polishing surface by joining several carrier bodies with grinding or polishing surfaces, which have the same abrasive properties, to form a carrier structure.
  • the at least one grinding or polishing area in the at least one first radial area has a different inclination to the axis of rotation than the at least one grinding or polishing area in the at least one second radial area.
  • This can be done both by a first support body having a different inclination to the axis of rotation than a second support body.
  • the clamped or rotated grinding and / or polishing tool according to the invention by adjusting the tool relative to the machined workpiece according to the predetermined different inclinations or inclination in the no various radial areas, the surface of the workpiece with the abrasive materials or abrasive properties in the radial regions are reliably ground and / or polished, so that another radial area surface effect is not or only to a small extent for engagement.
  • a coarse machining tool area should not intervene again in a finely machined workpiece area.
  • the inclination or an angle of inclination or angle of attack which is considered or measured with respect to the axis of rotation, at least one radially further inside grinding or polishing range is preferably greater than a radially outer grinding or polishing range, but may also be smaller.
  • a difference between the angle of inclination of at least one radially inner grinding or polishing area and the angle of inclination of a radially outermost grinding or polishing area is in particular from 5 ° to 75 °, preferably from 8 ° to 35 °, whereby a more ergonomic for the user and sufficient difference in the employment of the tool against the workpiece is guaranteed.
  • a plurality of grinding or polishing regions in particular individual grinding or polishing elements, arranged one behind the other about the axis of rotation in the circumferential direction, in particular individual grinding or polishing elements are provided, wherein the grinding or polishing elements in particular special are arranged overlapping and / or are designed as slats and / or rectangular or trapezoidal.
  • the number of lamellae or different grinding or polishing regions can be different, in particular being smaller in a radially inner region of the radial region than in a radially outer region of the radial region.
  • the invention is not limited to the use of lamellar grinding or polishing elements.
  • the grinding or polishing areas can also be covered flat with grinding or polishing elements.
  • the grinding or polishing regions or an envelope of the overlapping grinding or polishing elements in a radial section or in the radial direction at least partially substantially linear or have a radially substantially linearly extending region.
  • the slope or angle of inclination is then generally determined or measured in each substantially linearly extending region.
  • a grinding or polishing region located radially further inwards can have a lower abrasiveness or a finer abrasive material than a grinding or polishing region lying radially further outwards or vice versa.
  • the areas are designed and arranged so that a finer grinding or polishing area while possibly simultaneously z. B. on the edge or after wear can engage with a coarser grinding area on the workpiece surface, but not vice versa.
  • the grinding or polishing areas or grinding or polishing elements of radially adjacent radial areas can now directly adjoin one another or be arranged at a predetermined distance from each other.
  • a radially further inward radial region can extend further, in particular in the radial direction, than a radial region located radially further outward. According to this embodiment, it is thus provided that a radially outer grinding or polishing region - viewed radially - is narrower than a radially further inwardly arranged region.
  • the shape of the carrier structure in the radial cut can now be selected such that the desired envelope curve of the grinding or polishing elements results, the grinding or polishing elements having a constant thickness over their extent, or the carrier structure in at least one of the radial areas have the same inclination to the axis of rotation as the at least one grinding or polishing area in this radial region.
  • the arrangement in the middle may also be thicker than further out, thus increasing the envelope there.
  • the length and number of elements or slats and the height can be changed.
  • the grinding or polishing elements in a given, in particular flat, shape of the support structure, can be shaped in radial section so as to give the desired envelope of the grinding or polishing elements, or between a surface facing the support structure and a grinding or polishing Polishing surface of the grinding or polishing elements may be provided an inclination from which there is provided in the associated radial region inclination of the at least one grinding or polishing area to the axis of rotation and in particular in a flat, directed perpendicular to the axis of rotation support structure equal to the inclination of the at least one grinding - or polishing area to the axis of rotation.
  • the invention thus preferably relates to a grinding or polishing disc with two concentric arrangements of laminations (ie grinding or polishing). lierettin or grinding or polishing segments), which are preferably designed as emery paper and are glued to a disc-shaped support structure in particular.
  • laminations ie grinding or polishing
  • lierensen or grinding or polishing segments which are preferably designed as emery paper and are glued to a disc-shaped support structure in particular.
  • the outer ring coarser grinding lamellae are preferred, in the inner ring finer grinding lamellae.
  • the fins of the inner ring are preferably arranged at a smaller setting angle than the fins in the outer ring.
  • a rough machining of the surface can be made; with the lamellae of the inner ring can be done by flatter hiring the disc a fine machining.
  • the roughing can be done with a larger abrasive grain, while then the fine machining can be done as Nachpoliervorgang what the lamellae are provided with correspondingly fine-grained abrasive material.
  • any abrasive materials can be used in the at least two grinding or polishing areas.
  • FIG. 2 shows the larger carrier body of the grinding and / or polishing tool according to FIG. 1 in a plan view of the front side
  • FIG. 3 shows the larger carrier body according to FIG. 2 in a plan view of its rear side
  • FIG. 4 shows the smaller carrier body of the grinding and / or polishing tool according to FIG. 1 in a plan view onto its front side
  • FIG. 5 shows the smaller carrier body according to FIG. 4 in a plan view onto its rear side
  • FIG. 6 shows the grinding and / or polishing tool according to FIG. 1 in the assembled state in a central sectional representation
  • 7 shows a further embodiment of two carrier body (without
  • FIGS. 7 and 8 shows the tool according to FIGS. 7 and 8 with grinding and / or polishing areas in the state clamped on an angle grinder in a sectional representation, respectively.
  • Corresponding parts and sizes are provided in the Figures 1 to 9 with the same reference numerals.
  • FIGS. 1 to 9 The various embodiments of a grinding and / or polishing tool illustrated with reference to FIGS. 1 to 9 include, as can be seen particularly in FIG. 1 and FIGS. 6 to 8, a two-part support structure 2 with two support bodies 21 and 22 which can be joined together and in particular radially substantially form-fitting or centered or at least with radial play limitation can be put into each other.
  • An axis of rotation of the grinding and / or polishing tool 1 is denoted by 5 and extends (in the mounted state) through a central opening 11 of the first carrier body 21 and a central opening 12 of the second carrier body 22nd
  • a rotary shaft of a machine tool in particular a hand-held electric or pneumatic hand grinder, such as an angle grinder, with an electric drive motor or pneumatic drive, plugged and the two carrier body 21 and 22 are on this rotary shaft fastened, in particular braced with - only in FIG 9 shown - clamping means, such as clamping flanges.
  • the two support bodies 21 and 22 are braced so strongly against each other axially relative to the axis of rotation 5 that they can not be rotated relative to one another due to the static friction forces.
  • Axial to the axis of rotation 5 are the two carrier body 21 and 22 thus positively connected.
  • a positive, for example latching, connection is also conceivable axially.
  • Each of the carrier bodies 21 and 22 carries an annular arrangement of grinding and / or polishing elements.
  • the first, smaller carrier body 21 carries a plurality of overlapping grinding or polishing elements 8 in a ring or radial region 3 on a flat carrier region 33 sloping obliquely outward at the angle ⁇ (FIG. 6).
  • the second, larger carrier body 22 has in its outer region a ring or radial region 4, in which a multiplicity of grinding or polishing elements 9 are arranged overlapping one another in the illustrated exemplary embodiment.
  • the grinding or polishing elements 9 are mounted on a sloping outwardly flat support portion 44 of the support body 22. In FIG 1 and FIG 2, a portion of this support portion 44 is still visible inside.
  • the inclination of the carrier region 44 at the angle ⁇ to the axis of rotation 5 is shown in FIG.
  • the grinding or polishing elements 8 and 9 are glued on their respective support portions 33 and 44 in particular with a suitable adhesive material.
  • the carrier bodies 21 and 22 are adapted in their shape so that they can be interlocked in a form-fitting manner.
  • the support portion 44 connects to the support portion 44 inwardly via a step which is formed with a parallel to the axis of rotation 5 directed cylindrical wall 47, a flat or slightly conical portion 43, which also drops to the outside, but one has a smaller pitch or a greater angle of inclination to the axis of rotation 5 than the outer carrier area 44.
  • the conical area 43 is then followed by an oppositely extending, that is to say inward, inclined co-direction.
  • nischer region 42 which merges into a flat, perpendicular to the axis of rotation 5 extending central annular region 41 which surrounds the opening 12.
  • the central annular region 41, the adjoining conical region 42 and the conical region 43 form on the front side as well as on the second carrier body 22 the back from, so that here the carrier body 22 has a substantially constant thickness and thus can be prepared for example by forming a sheet.
  • a conical area 45 is initially provided, which merges into a practically flat annular edge area 46.
  • the rear region 45 can have the same pitch as the front conical carrier region 44.
  • the smaller, first carrier body 21, as can be seen in FIG. 1 and FIGS. 4 to 6, has a conical region 32 adjoining the carrier region 33, which merges inwardly into a central, flat annular region 31 which forms the central opening 11 and thus the rotation axis 5 rotates.
  • this sequence of regions on the front side of the first carrier body 21 also forms on its rear side, with the only difference that the carrier region 33 at the outer edge again becomes similar to the other carrier body 22 into a flat annular region 34 expires, in which generally the carrier body 22 rests on the carrier body 21.
  • the rear side of the central annular region 31 and the conical region 32 and the rear side of the carrier region 33 of the smaller carrier body 21 are now in their shape, in particular in the radial dimensions and in the inclinations to the axis of rotation 5, equal to those at the front of the larger carrier body 22nd provided corresponding areas, namely the inner ring portion 41, the conical portion 42 and the conical Area 43.
  • the conical area 43 of the larger support body 22 is inclined in adaptation to the support portion 33 of the smaller support body 21 also at its inclination angle ⁇ to the rotation axis 5.
  • the diameter of the smaller carrier body 21 extending through the axis of rotation 5 is designated d in FIG. 5 and the diameter of the larger carrier body 22 in FIG. 2 and 3 is D.
  • the inner diameter of the free space between the grinding or polishing elements 9 is shown in FIG d "and the outer diameter of the grinding or polishing elements 8 in FIG 4 with d ', wherein d" is greater than d and d' may be greater than, equal to or less than d.
  • the angle of inclination or angle of attack to the axis of rotation 5 measured in the radial direction R and drawn in radial section is at the radial and the grinding angle located there. or polishing elements 9 in the outer radial region 4 and denoted by ⁇ in the radially inner grinding or polishing region 6 and the grinding or polishing elements 8 located therein in the inner radial region 3.
  • the inclination angle ⁇ of the outer grinding or polishing region 7 in the outer radial region 4 to the rotation axis 5 is set smaller than that Inclination angle ⁇ of the inner grinding or polishing region 6 in the inner radial region 3 of the tool 1. It can also be reversed.
  • the outer grinding or polishing area 7 is made steeper than the inner grinding or polishing area 6.
  • the tool 1 driving hand machine such as an angle grinder at different angles of attack relative to the workpiece surface either outer grinding or polishing area 7 or the inner grinding or polishing area 6 are used or come into effect.
  • the tool 1 can be selectively operated by appropriate adjustment during machining so that either the radially outer or the radially inner region can be brought into engagement independently of each other.
  • the inner grinding or polishing elements 8 and the outer grinding or polishing elements 8 are The inner grinding or polishing elements 8 and the outer grinding or polishing elements
  • Polishing elements 9 can in all embodiments in the radial direction R abut each other directly or be spaced from each other by a radial distance of typically 1 mm to 10 mm.
  • the grinding or polishing elements 8 and 9 can each be designed to be of constant thickness, so that their grinding or polishing , Polishing surfaces parallel to the support portions 33 and 44 of the support structure 2 and thus at the same inclination angles OC and ß run.
  • the envelope of the grinding or polishing elements 8 and 9 thus corresponds to the radially linear course of the carrier regions 33 and 44 of the carrier structure 2. This allows the use of fertilizer of standard material of constant thickness for the grinding or polishing elements 8 and 9.
  • the inclination of the grinding or polishing regions 6 and 7 on the surfaces of the grinding or polishing elements 8 and 9 can additionally or even completely be effected by the shape of the grinding or polishing elements 8 and 9 for a given shape of the carrier surfaces of the carrier structure 2 be set, for example by a trapezoidal radial section of the grinding or polishing 8 and 9th
  • the difference OC - ⁇ is the inclination angle OC and ⁇ at an interval of 5 ° to 75 °, preferably 8 ° to 35 °.
  • the individual tilt angles are generally set as follows.
  • the inclination angle OC from the range of 20 ° to 90 ° and the inclination angle ⁇ from the range of 15 ° to 85 °.
  • a cylindrical region 38 or 48 is additionally formed.
  • the cylindrical regions 38 and 48 have a significantly smaller distance or tolerance a to one another, for example by 0.1 mm, than the two conical regions 32 and 42, which are separated by a distance or a tolerance b of For example, 0.5 mm are spaced, and thus serve as a radial clearance limitation or for radial fixation.
  • the two carrier bodies 21 and 22 are preferably held in a force-locking manner by clamping or clamping forces. This can be seen in the clamped state with reference to FIG.
  • the free end of the rotary shaft 52, which protrudes from the sleeve 51 is guided through the central openings 1 1 and 12 of the two superimposed and nested support body 21 and 22 and the two support bodies 21 and 22 are axially by two on opposite sides of the flat interior areas 31 and 32 adjacent clamping nuts 53 and 54 held on the rotary shaft 52 and fixed against rotation.
  • axial form-locking elements or a mutually preventing positive locking elements could be provided.
  • FIG. 9 shows by way of example the holding of the machine for processing an upper surface or workpiece surface. In most cases, however, the machine is held reversed, so that the tool 1 points downwards, that is to say roughly in such a way that FIG. 9 is simply rotated through 180 °, for machining a surface lying below.
  • the invention is not limited to the illustrated embodiment. Further conceivable embodiments are those in which the grinding or polishing regions of the carrier bodies adjoin one another, have the same inclination and / or the same abrasive properties. It is likewise possible to provide a plurality of grinding or polishing regions with the same or different inclinations to a carrier body and to combine such carrier bodies with one another.
  • the invention thus enables a modular tool design so that the tool can be put together individually depending on the intended use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

La présente invention concerne un outil de meulage et/ou de polissage (1). Selon l'invention : a) l'outil présente une structure de support (2); b) au moins une zone de meulage ou de polissage (6, 7) respective se trouve au moins sur un côté de la structure de support (2) dans au moins deux zones radiales (3, 4) différentes de la structure de support (2), disposées concentriquement avec l'axe de rotation (5) de l'outil de meulage et/ou de polissage (1); c) la structure de support (2) comprend au moins deux corps de supports (21, 22) séparés ou réalisés séparément; d) chaque corps de support (21, 22) comporte respectivement au moins l'une des zones radiales (3, 4) dans laquelle se trouve respectivement au moins l'une des zones de meulage ou de polissage (6, 7).
EP10723024A 2009-06-11 2010-05-19 Outil de meulage et/ou de polissage et procédé de réalisation Not-in-force EP2440371B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910025116 DE102009025116A1 (de) 2009-06-11 2009-06-11 Schleif-und/oder Polierwerkzeug und Herstellverfahren
PCT/EP2010/056849 WO2010142520A1 (fr) 2009-06-11 2010-05-19 Outil de meulage et/ou de polissage et procédé de réalisation

Publications (2)

Publication Number Publication Date
EP2440371A1 true EP2440371A1 (fr) 2012-04-18
EP2440371B1 EP2440371B1 (fr) 2013-04-03

Family

ID=42937306

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10723024A Not-in-force EP2440371B1 (fr) 2009-06-11 2010-05-19 Outil de meulage et/ou de polissage et procédé de réalisation

Country Status (3)

Country Link
EP (1) EP2440371B1 (fr)
DE (1) DE102009025116A1 (fr)
WO (1) WO2010142520A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014102688A1 (de) * 2014-02-28 2015-09-03 Adolf Würth GmbH & Co. KG Poliervorrichtung mit Wärmeabführeinrichtung
ES2639374B1 (es) * 2016-04-26 2018-09-12 Abel Fernando PEREIRA DE OLIVEIRA Disco abrasivo multiangular para máquinas lijadoras
EP3434414A1 (fr) * 2017-07-26 2019-01-30 Klingspor AG Disque de traitement des matériaux
CN111805359A (zh) * 2020-07-16 2020-10-23 绍兴市神龙铝塑制品有限公司 一种铝制品加工生产用修整处理装置及其操作方法
CN112676999A (zh) * 2020-12-30 2021-04-20 华侨大学 金刚石磨抛一体化的加工设备及其加工方法

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Publication number Priority date Publication date Assignee Title
DE2750023A1 (de) 1977-11-09 1979-05-10 Dornhan Gmbh & Co Maschf Hackblockreiniger
CH685930A5 (de) 1992-09-16 1995-11-15 Revema Ag Fasenschleifkopf fur die Steinbearbeitung fur den Einsatz auf Kantenschleifmaschinen.
US5503592A (en) 1994-02-02 1996-04-02 Turbofan Ltd. Gemstone working apparatus
US5752876A (en) 1995-10-23 1998-05-19 Weiler Brush Company, Inc. Flap disc abrasive tool
US6062958A (en) 1997-04-04 2000-05-16 Micron Technology, Inc. Variable abrasive polishing pad for mechanical and chemical-mechanical planarization
WO2001098027A1 (fr) 2000-06-19 2001-12-27 Struers A/S Feuille de meulage et/ou de polissage a zones multiples
EP1266724A1 (fr) 2001-06-12 2002-12-18 sia Abrasives Industries AG Disque abrasif de meulage, produit intermédiaire et procédé de fabrication d'un tel disque abrasif
JP2007075949A (ja) 2005-09-14 2007-03-29 Ebara Corp 研磨プラテン、研磨装置

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Title
See references of WO2010142520A1 *

Also Published As

Publication number Publication date
WO2010142520A1 (fr) 2010-12-16
EP2440371B1 (fr) 2013-04-03
DE102009025116A1 (de) 2010-12-16

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