EP1313594B1 - Polissoir - Google Patents

Polissoir Download PDF

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Publication number
EP1313594B1
EP1313594B1 EP01976157A EP01976157A EP1313594B1 EP 1313594 B1 EP1313594 B1 EP 1313594B1 EP 01976157 A EP01976157 A EP 01976157A EP 01976157 A EP01976157 A EP 01976157A EP 1313594 B1 EP1313594 B1 EP 1313594B1
Authority
EP
European Patent Office
Prior art keywords
polishing tool
recited
polishing
felt
supporting body
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
Application number
EP01976157A
Other languages
German (de)
English (en)
Other versions
EP1313594A1 (fr
Inventor
Marion Wendt-Ginsberg
Frank Wendt
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.)
Wendt Poliertechnik GmbH and Co KG
Original Assignee
Wendt Poliertechnik GmbH and Co KG
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 Wendt Poliertechnik GmbH and Co KG filed Critical Wendt Poliertechnik GmbH and Co KG
Publication of EP1313594A1 publication Critical patent/EP1313594A1/fr
Application granted granted Critical
Publication of EP1313594B1 publication Critical patent/EP1313594B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/04—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising a plurality of flaps or strips arranged around the axis
    • 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
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/12—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
    • 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
    • B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material

Definitions

  • the invention relates to a polishing tool, in particular for rotating drive by a machine tool according to the preamble of claim 1.
  • a polishing tool is made WO 89/00092 A known.
  • Polishing is understood to mean a process for the fine machining of surfaces with a geometrically indeterminate cutting edge, wherein the removal of material is carried out by a polishing agent consisting of unbonded mineral powder, usually metal oxides, having a high melting point and a low tendency to dissolve in water or oil.
  • a polishing agent consisting of unbonded mineral powder, usually metal oxides, having a high melting point and a low tendency to dissolve in water or oil.
  • the mineral powder is slurried or processed into polishing pastes or polish suspensions by mixing with heat-resistant fats or paraffins.
  • the polishing takes place on a lapping machine or in the production of optical lenses by means of a polishing shell.
  • a polishing bowl is usually lined with a polishing agent carrier which holds the polishing slurry on the tool and defines the final shape of the workpiece surface.
  • a polish carrier while plastic film, felt, pitch or Feltflockenpech be used.
  • polishing tools For decorative surface finishing usually hand-held machines are used with polishing tools that have no workpiece-specific contour and are not intended to shape the workpiece. Rather, here is done by polishing usually a post-processing of the surface for decorative purposes or Restoration of such area during repair operation (eg polishing of painted parts, polishing of scratches).
  • polishing with hand-held machines is the most common application for producing decorative surfaces or for post-processing.
  • polishing tools are known, which are provided on machines similar grinding blocks or for driving by hand drills, angle grinders or straight grinders.
  • polishing tools are known in which a particularly durable designated one-piece compact felt body in a cylindrical, tapered or disc-shaped configuration is provided with a steel shaft in a diameter of 6 mm for clamping in a machine.
  • a corresponding abrasive paste is also available for use with these felt polishing bodies.
  • a porous polishing tool and a method of polishing a roll are known, which is intended to allow a roll to be polished within a satisfactory dimensional accuracy while avoiding feed marks and stripe-shaped pressure effects when the polished roll is to be used for printing.
  • a polishing pad made of a fiber material and a use of such a polishing pad for polishing watch cases are known.
  • a relatively narrow polishing pad is described, for which it is stated as a special feature that it consists of a single solid fiber material, wherein the disc is cut transversely from the outer periphery towards the center.
  • three radial zones are formed in the disk.
  • the outer zone has a plurality of such cuts. Only every second of the incisions is continued in the radially inner zone.
  • the radially innermost zone has no such incisions.
  • these incisions are not exactly radial, but are curved against the direction of rotation and the tangents of the curved incision with respect to the radial by an angle ⁇ are inclined, the angle ⁇ increases from outside to inside.
  • an inclination of 20 ° was specified there as the preferred value for the angle ⁇ .
  • the inclination is carried out so that the tangents point in the direction of rotation at the core of the disc, ie that the slotted radially outer portions of the polishing pad are pressed together by the inertia during rotation and thus make the polishing pad in the radial direction particularly hard.
  • the slit should allow an improved lateral (axial) mobility of the disc.
  • the polishing result is thus dependent on a certain experience and practice of the person skilled in the art as well as their experience in suitably selecting a polishing body with suitable hardness and a polishing agent adapted to the material of the workpiece and the polishing body.
  • the invention is therefore based on the object to provide a polishing tool of the type mentioned, which has improved properties in terms of its handling and in terms of a better work result.
  • the polishing tool adapts particularly well to the material contour and thus also allows the polishing of curves particularly well.
  • a polishing tool according to the invention can also be produced in small dimensions, so that the advantages according to the invention can also be utilized when polishing the smallest workpieces or when polishing in depressions and holes.
  • the polishing agent can spread better on the surface of the polishing tool and the risk of clogging of the felt and thus of lubrication points on the workpiece on the one hand or the dry running of the polishing tool on the workpiece on the other hand better avoided.
  • both concave and convex curved surfaces can be processed particularly well.
  • Particularly advantageous properties of a polishing tool according to the invention in terms of sufficient work and service life arise when the felt fins have a thickness of about 1 mm to about 20 mm and / or if the felt has a content of pure wool (animal hair) of at least about 30% and preferably has a hardness of 0.14 to 0.68 (W4 to H5) according to DIN 61200.
  • W4 to H5 hardness of 0.14 to 0.68
  • the felt fins are made of felt of different density. This results in a sufficient strength of the tool on the one hand, on the other hand areas with felt lower density can absorb larger amounts of polishing agent.
  • a particularly good polishing result in highly contoured workpieces can be obtained if at least some of the felt fins are each subdivided transversely to their longitudinal extension, preferably at a distance of about 3 mm to about 10 mm, resulting in a particularly high flexibility of the tool.
  • the felt fins are permanently connected on at least one side with a carrier body and are lined up in the area of this page gapless.
  • the felt fins are permanently connected to a carrier body on at least one side and are lined up at a distance from one another in the region of this side.
  • the carrier body formed from a disc and the disc as resin-bonded glass fiber plate or substantially of a plastic, preferably a fiber-reinforced plastic, aluminum, a hard paper (fibrous material) or steel is made, in particular, when the felt fins along the circumference of the disc, preferably this radially projecting, are arranged on the axial end face of the disc.
  • the felt blades are fastened substantially approximately radially to a support body.
  • the carrier body has at least one hole for receiving a receiving mandrel for connection to a drive machine.
  • the carrier body has at least one hole for receiving a drive shaft and preferably in the axial direction along the hole a groove for a driver.
  • the carrier body consists of a synthetic resin body in the the felt fins and the shaft are embedded directly.
  • the carrier body is formed by at least partially casting a space formed between the mutually positioned felt fins and the shaft with a plastic or synthetic resin.
  • the support body or the shaft comprises a single or multi-start screw or nut thread, wherein the thread is preferably a coarse thread, a rectangular or a trapezoidal thread.
  • the polishing tool according to the invention shown in Figure 1 comprises a full (non-hollow) polishing body 1 substantially of a felt, which is often divided with slots 2, wherein the slots 2 between a plurality of full (non-hollow) felt lamellae 3 are formed.
  • a full polishing body 1 or a full felt lamella 3 is to be understood here as meaning that no cavities or holes greater than the normal porosity of the felt used should be present.
  • the felt lamellae 3 are fastened substantially approximately radially to a carrier body 4, preferably aligned substantially radially.
  • a connection to the polishing tool with a conventional chuck of a drive machine rotatably connected to the support body 4 shaft 5 is provided.
  • the shaft 5 expediently has one of the usual diameters of 6 mm, 8 mm or 12 mm, depending on the size of the polishing tool and the drive machine.
  • the carrier body 4 may consist of a synthetic resin body into which the felt blades 3 and the shaft 5 are directly embedded which is preferably formed by at least partially casting a space 6 formed between the mutually positioned felt blades 3 and the shaft 5 with a plastic or synthetic resin.
  • the polishing body 1 may well have an outer diameter of more than 100 mm and a length in the axial direction of 150 mm, on the other hand it may also have a diameter of only 30 mm and, for example, a length of 10 mm, depending on the desired application. Accordingly, it has been found to be advantageous to provide a thickness of the slats 3 of about 1 mm to about 20 mm, preferably in the range of about 3 mm to about 20 mm.
  • the felt lamellae 3 it is also possible for the felt lamellae 3 to be lined up at a distance from one another on the side at which they are connected to the carrier body 3.
  • a further embodiment of the polishing tool according to the invention is formed so that the carrier body is formed from a disc 7.
  • the disc 7 may be suitably made as a resin-bonded glass fiber plate or a plastic, preferably a fiber-reinforced plastic, aluminum, a hard paper (fibrous material) or steel.
  • Such a polishing tool is shown in FIGS. 6, 7 and 8.
  • the disk 7 has e.g. a hole 8 for receiving a conventional mandrel for connection to a prime mover.
  • the edge of the hole 8 is expediently reinforced with a metal eyelet 9 to guarantee a secure centric seat.
  • the felt blades 3 are arranged along the circumference on the axial end face 10 of the disc 7, as can be seen well in FIGS. 7 and 6.
  • the lamellae 7 are arranged so that they project beyond the edge 11 of the disc 7 radially outwardly by a piece 12. This can be clearly seen in Figure 8, which shows a view of the polishing tool as viewed from the machine side.
  • inner edge regions can also be polished particularly well with such an embodiment since this polishing tool extends into the corners.
  • this tool differs mainly in that the lamellae 3 are mounted on a core 13, in which either directly or by means of a sleeve (not shown), a through hole 14 is formed for receiving a drive shaft of the machine tool.
  • This embodiment can be made economically useful in sizes up to at least an outer diameter of 120 mm and correspondingly large widths.
  • For the transmission of a matched drive power is then favorable, preferably in the axial direction along the hole 14 to provide a groove 15 for a driver of the drive machine, e.g. a feather key.
  • a groove 15 can be seen well in FIG. With a corresponding power requirement, a plurality of such grooves can also be provided.
  • such embodiments may also be provided with other drive receivers and with an outer diameter of up to 300 mm.
  • the felt has a pure wool content of at least about 30%.
  • the felt fins 3 may consist of felt of different density and for stiffening the tool between at least some of the felt fins 3 one or more (not shown) intermediate layers may be provided.
  • Such liners may be made of a suitable flexible material, including felt. Also, to achieve a greater hardness of the polishing body 1 at least some of the felt blades 3 combined with or without liners to groups and be interconnected within the groups, eg by sewing, to form felt lamella packages.
  • the hole 8 of the disc 7 or the hole 14 of the roll-shaped polishing tool can contain a female thread depending on the drive machine. Accordingly, the shaft 5 may be provided with a screw thread.
  • the threads can be one or more continuous and in particular a coarse thread, a rectangular or a trapezoidal thread.
  • a particularly good polishing result, especially with highly contoured workpieces, can be obtained if at least some of the felt fins 3 are each subdivided transversely to their longitudinal extent by transverse slots 16, as can be seen in FIG.
  • the transverse slots 16 may extend from the radially outer side of the felt lamellae 3 over a part of the depth of the felt lamellae 3 or even pass to the bottom.
  • the transverse slots 16 are arranged at a distance of about 3 mm to about 10 mm, resulting in the manner of a brush a particularly high flexibility and adaptability of the felt fins to the workpiece contour.

Claims (19)

  1. Polissoir, en particulier destiné à un entraînement rotatif par une machine-outil, comportant un corps de polissage (1) plein essentiellement constitué d'un feutre, et dans lequel le corps de polissage (1) est subdivisé plusieurs fois, caractérisé en ce que le corps de polissage (1) est formé d'une multiplicité de lamelles de feutre pleines (3).
  2. Polissoir suivant la revendication 1, caractérisé en ce que les lamelles de feutre (3) présentent une épaisseur d'environ 1 mm à environ 20 mm.
  3. Polissoir suivant l'une quelconque des revendications qui précèdent, caractérisé en ce que le feutre présente une teneur en pure laine d'au moins environ 30% et de préférence une dureté de 0,14 à 0,68 (W4 à H5) selon DIN 61200.
  4. Polissoir suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que les lamelles de feutre (3) consistent en feutre de différentes épaisseurs.
  5. Polissoir suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que, entre au moins quelques-unes des lamelles de feutre (3) sont prévues une ou plusieurs couches intermédiaires flexibles.
  6. Polissoir suivant l'une quelconque des revendications 1 à 5, caractérisé en ce qu'au moins quelques-unes des lamelles de feutre (3) sont à chaque fois divisées transversalement par rapport à leur étendue longitudinale, de préférence à distance d'environ 3 mm à environ 10 mm.
  7. Polissoir suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que les lamelles de feutre (3) sont liées de manière durable sur au moins un côté à un corps de support (4, 7) et sont alignées sans vides dans la région de ce côté.
  8. Polissoir suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que les lamelles de feutre (3) sont liées de manière durable sur au moins un côté à un corps de support (4, 7) et sont alignées à une certaine distance les unes des autres dans la région de ce côté.
  9. Polissoir suivant l'une quelconque des revendications 7 à 8, caractérisé en ce qu'au moins quelques-unes des lamelles de feutre (3 sont rassemblées en groupes, avec ou sans couche intermédiaire, et sont liées entre elles au sein de ces groupes, de manière à former des paquets de lamelles.
  10. Polissoir suivant l'une quelconque des revendications 1 à 9, caractérisé en ce que le corps de support (4) est formé sur un disque (7) et que le disque (7) est essentiellement fabriqué à partir d'une matière synthétique, de préférence une matière synthétique renforcée par des fibres, d'aluminium, de papier durci (matériau fibreux) ou d'acier.
  11. Polissoir suivant la revendication 10, caractérisé en ce que les lamelles de feutre (3) sont agencées, le long du périmètre du disque (7), sur le côté frontal (10) du disque (7), de préférence en saillie en direction axiale.
  12. Polissoir suivant l'une quelconque des revendications 7 à 9, caractérisé en ce que les lamelles de feutre (3) sont essentiellement fixées pratiquement radialement sur un corps de support (4).
  13. Polissoir suivant l'une quelconque des revendications 7 à 12, caractérisé en ce que le corps de support (4, 7) présente au moins un alésage (8) destiné à recevoir un mandrin porte-pièce pour la liaison avec une machine d'entraînement.
  14. Polissoir suivant l'une quelconque des revendications 7 à 12, caractérisé en ce que le corps de support (4, 7) présente au moins un alésage (14) destiné à recevoir un arbre d'entraînement et présente de préférence en direction axiale le long de l'alésage un écrou (15) destiné à recevoir un tenon d'entraînement.
  15. Polissoir suivant l'une quelconque des revendications 7 à 12, caractérisé en ce qu'il est prévu, pour la liaison du polissoir à une machine d'entraînement, une queue d'outil solidaire du corps de support (4,7).
  16. Polissoir suivant la revendication 15, caractérisé en ce que le corps de support (4) consiste en un corps en résine synthétique, dans lequel sont directement insérées les lamelles de feutre (3) et la queue d'outil (5).
  17. Polissoir suivant l'une quelconque des revendications 15 ou 16, caractérisé en ce que le corps de support (4) est formé par moulage au moins partiel d'un espace (6) formé entre les lamelles de feutre mutuellement positionnées (3) et la queue d'outil (5) avec une matière synthétique ou une résine synthétique.
  18. Polissoir suivant l'une quelconque des revendications 3 à 17, caractérisé en ce que le corps de support (4, 7) ou la queue d'outil (5) comprend un filet mâle ou un filet femelle simple ou multiple , le filet étant de préférence un filet à pas rapide, un filet rectangulaire ou trapézoïdal.
  19. Polissoir suivant l'une quelconque des revendications 1 à 18, caractérisé en ce que les lamelles de feutre (3) sont essentiellement placées verticalement sur un corps de support (4,7).
EP01976157A 2000-08-28 2001-08-28 Polissoir Expired - Lifetime EP1313594B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10042109A DE10042109C2 (de) 2000-08-28 2000-08-28 Polierwerkzeug
DE10042109 2000-08-28
PCT/EP2001/009903 WO2002018102A1 (fr) 2000-08-28 2001-08-28 Polissoir

Publications (2)

Publication Number Publication Date
EP1313594A1 EP1313594A1 (fr) 2003-05-28
EP1313594B1 true EP1313594B1 (fr) 2007-08-15

Family

ID=7653979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01976157A Expired - Lifetime EP1313594B1 (fr) 2000-08-28 2001-08-28 Polissoir

Country Status (6)

Country Link
US (1) US7794309B2 (fr)
EP (1) EP1313594B1 (fr)
AT (1) ATE369941T1 (fr)
DE (2) DE10042109C2 (fr)
ES (1) ES2290175T3 (fr)
WO (1) WO2002018102A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2913150A2 (fr) 2014-02-28 2015-09-02 Adolf Würth GmbH & Co. KG Dispositif de polissage doté d'un dispositif d'évacuation de chaleur

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DE102006017305A1 (de) * 2006-04-12 2007-10-18 Gerd Eisenblätter Gmbh Befestigungssystem, Befestigungsadapter und Befestigungsverfahren
US8342843B2 (en) 2008-05-08 2013-01-01 Dental Wings, Inc. Dental articulator reference object
US8585470B2 (en) * 2010-09-22 2013-11-19 Black & Decker Inc. Wearable backing for an abrasive flap disk
TWM417989U (en) * 2011-01-28 2011-12-11 Green Energy Technology Inc Grinding mechanism
RU2467861C2 (ru) * 2011-02-25 2012-11-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" Способ заполнения конструктивных элементов композиционного шлифовального круга твердым смазочным материалом
DE102020001283A1 (de) 2020-02-28 2021-09-02 Wendt Poliertechnik Gmbh & Co. Kg Polierwerkzeug
DE202020000786U1 (de) 2020-02-28 2021-05-31 Wendt Poliertechnik Gmbh & Co. Kg Polierwerkzeug
US20230136260A1 (en) 2020-02-28 2023-05-04 Wendt Poliertechnik Gmbh & Co. Kg Polishing tool
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CN115139230A (zh) * 2022-06-14 2022-10-04 郑州瑞特金刚石砂带有限公司 用于难磨材料拉丝的超硬材料砂布及其制备的砂带和叶轮的应用

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2913150A2 (fr) 2014-02-28 2015-09-02 Adolf Würth GmbH & Co. KG Dispositif de polissage doté d'un dispositif d'évacuation de chaleur
DE102014102688A1 (de) 2014-02-28 2015-09-03 Adolf Würth GmbH & Co. KG Poliervorrichtung mit Wärmeabführeinrichtung

Also Published As

Publication number Publication date
WO2002018102A1 (fr) 2002-03-07
DE10042109A1 (de) 2002-03-21
DE50112869D1 (de) 2007-09-27
DE10042109C2 (de) 2003-07-03
ATE369941T1 (de) 2007-09-15
EP1313594A1 (fr) 2003-05-28
ES2290175T3 (es) 2008-02-16
US7794309B2 (en) 2010-09-14
US20040048560A1 (en) 2004-03-11

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