EP3965993A1 - Dispositif de meulage - Google Patents

Dispositif de meulage

Info

Publication number
EP3965993A1
EP3965993A1 EP20727982.9A EP20727982A EP3965993A1 EP 3965993 A1 EP3965993 A1 EP 3965993A1 EP 20727982 A EP20727982 A EP 20727982A EP 3965993 A1 EP3965993 A1 EP 3965993A1
Authority
EP
European Patent Office
Prior art keywords
grinding
plate
grinding device
sanding
held
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.)
Pending
Application number
EP20727982.9A
Other languages
German (de)
English (en)
Inventor
Werner Unnerstall
Christian Wall
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.)
Rud Starcke GmbH and Co KG
Original Assignee
Rud Starcke 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 Rud Starcke GmbH and Co KG filed Critical Rud Starcke GmbH and Co KG
Publication of EP3965993A1 publication Critical patent/EP3965993A1/fr
Pending legal-status Critical Current

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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/06—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving members with limited contact area pressing the belt against the work, e.g. shoes sweeping across the whole area to be ground
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape
    • 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
    • B24B23/06—Portable grinding machines, e.g. hand-guided; Accessories therefor with abrasive belts, e.g. with endless travelling belts; Accessories therefor

Definitions

  • the invention relates to a grinding device according to the preamble of claim 1.
  • Such a grinding device is known, for example, from EP 1 908 554 B1.
  • the grinding element of this grinding device is leaf-shaped latestbil det with a round, oval, square or rectangular base and is held by suction on the grinding plate.
  • the size of the base area of the sanding element corresponds to the base area of the sanding plate.
  • the grinding elements used are available as individual sheets that have to be replaced when the grinding elements are worn out.
  • the grinding device known from the cited EP 1 908 554 B1 is designed for manual use, which, however, results in a number of necessary operations which, in particular, oppose cost optimization.
  • DE 102 22 956 A1 discloses a grinding device in which a grinding belt is used that is drawn continuously over the support surface of a grinding plate.
  • the adhesion of the sanding belt to the sanding plate should be supported by vacuum tension, whereby the adhesion, i.e. the resulting frictional force, must be smaller than the tensile force with which the sanding belt is continuously moved.
  • a generic grinding device is also known from DE 10 2017 108 191 A1. In principle, this grinding device has proven itself in practice, but the problems mentioned in connection with EP 1 908 554 B1 also occur during operation.
  • the invention is based on the object of further developing a grinding device of the type according to the species in such a way that reworking of the grinding points is not necessary and the processing time, including the set-up times, is shortened.
  • the grinding device according to the invention offers clear advantages over one according to the prior art.
  • the circumferential protruding edge of the grinding element provided according to the invention means that the machined grinding points in the formed edge area can be polished out more quickly, since this edge area has a lower roughness, which results in a higher quality machining result.
  • the sanding pad is designed to be rectangular instead of a circular base area, this rectangular shape being particularly suitable for sanding beads.
  • a grinding belt is used as the grinding element, which is preferably rolled up and unwound, for which purpose a suitable device is provided.
  • the sanding pad is fed with new sanding element at certain time intervals when the sanding element is worn out, so to speak, with the result that set-up and changing times are minimized.
  • the sanding pad is multilayered, preferably consisting of a connector with a threaded hole for fastening to a grinding machine, for example, this connector preferably being made of plastic.
  • an elastic intermediate layer in particular made of a foam, which is covered by a dimensionally stable support plate, in particular made of an elastomer with a flat support surface, on which the grinding element rests by suction.
  • the connecting piece can also be made of a different material, in particular also of Me tall, with a connection element that is firmly connected to a drive is turned into the threaded hole.
  • the thread pairing of the connecting element / connecting piece is designed to be self-locking, so that, on the one hand, a secure hold is guaranteed during operation and, on the other hand, it can be changed without tools.
  • connection element as well as the connection piece, the elastic intermediate layer and the support plate are provided with a central air line which is angled in the connection element as a suction connection.
  • This lateral suction connection allows the use of a commercially available, orbitally driven grinding machine, whereby the grinding plate can be decoupled from the drive of the grinding machine through this design.
  • the arrival The drive motor and the sanding pad can be operatively connected via a toothed belt, for example.
  • the elastic intermediate layer preferably consisting of foam, adapts particularly well to contours to be ground, so that this grinding device according to the invention is particularly suitable for processing finished surfaces.
  • the sanding pad is convexly curved on the side facing the sanding element, i.e. the side on which the sanding element is held, whereby, as has been shown, beads to be sanded are particularly easy and effective to machine.
  • Fig. 1 is connected to a grinding machine Schleifvorrich device according to the invention in a schematic perspective view
  • Fig. 2 is a detail of the grinding machine in a cut Be tenansicht
  • Fig. 3 views a detail of the grinding device in different to
  • Fig. 4 shows a further detail of the grinding device, also in un different views
  • FIG. 5 shows a further exemplary embodiment of the detail according to FIG. 4 in a perspective view.
  • FIG. 1 shows a grinding machine with a grinding device 1 to which a drive 4 is connected, by means of which a grinding plate 2 can be driven.
  • a sanding element 3 in the form of a sanding belt is held by suction, with a suction connection 6 (Fig. 2) attached to a connection element 7 of the sanding plate 2, which is connected to a suction line, not shown.
  • the grinding element 3 is guided around two parallel and spaced, on both sides of the grinding plate 2 arranged pulleys 5.
  • the entire grinding machine can be attached to a robot (not shown) or the like and guided to the surfaces to be ground under computer control.
  • the grinding element 3 protrudes circumferentially with respect to the grinding plate 2, the useful side of the grinding element 3 being formed by abrasive grains that cover the entire surface of the latter. This means that the width of the grinding belt is larger than the assigned dimensions of the grinding plate 2.
  • FIG. 2 a part of the grinding machine is shown in a cut toan view. Only one connection element 7 of the sanding plate 2 can be seen, which is shown as a detail in FIG. 3.
  • connection element 7 can be moved orbitally or eccentrically in a plane by means of the drive 4, a toothed belt 8 being provided as the drive means, which is guided laterally into the grinding device 1.
  • suction connection 6 is connected to a suction line 10 of the connection element 7.
  • connection element 7 can be seen in FIG. 3, specifically in a perspective view from below and a sectional side view.
  • connection element 7 has a threaded nipple 9, on which a connecting piece 11, which has a threaded bore 14, is screwed.
  • the suction line 10 which, in relation to the central axis of the connection element 7, extends at an angle, namely once as a blind hole and proceeding therefrom in the axial direction through the threaded nipple 9.
  • Fig. 4 shows the grinding plate 2 partially again. It can be seen here that at the end of the connecting piece 11 facing away from the connecting element 7 an elastic intermediate layer 12 is attached to which in turn a support plate 13 is attached.
  • the grinding element 3 is securely held on the support plate 13 by the suction effect which is active during operation.
  • the thread of the threaded bore 14 is designed to be self-locking in correspondence with the thread of the threaded nipple 9, so that the grinding plate 2 can be loosened without tools.
  • FIG. 5 a further variant of the sanding plate 2 can be seen.
  • the side of the support plate 13 and the intermediate layer 12 facing the grinding element 3 has a rectangular base area, which in the example are convexly curved.
  • This shape of the grinding plate 2 is particularly suitable for grinding beads or the like.
  • connection element 8 toothed belt

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

L'invention concerne un dispositif de meulage comportant un disque de meulage actionnable (2) ainsi qu'un élément de meulage (3) flexible, maintenu sur le disque de meulage (2) par aspiration et pourvu de grains d'abrasif, le dispositif de meulage étant conçu de telle sorte que l'élément de meulage (3) fait saillie circonférentiellement par rapport au disque de meulage (2) sous la forme d'une bande de meulage, les grains d'abrasif recouvrant l'élément de meulage (3) sur toute la surface.
EP20727982.9A 2019-07-17 2020-05-20 Dispositif de meulage Pending EP3965993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019119333.8A DE102019119333A1 (de) 2019-07-17 2019-07-17 Schleifvorrichtung
PCT/EP2020/064150 WO2021008760A1 (fr) 2019-07-17 2020-05-20 Dispositif de meulage

Publications (1)

Publication Number Publication Date
EP3965993A1 true EP3965993A1 (fr) 2022-03-16

Family

ID=70847368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20727982.9A Pending EP3965993A1 (fr) 2019-07-17 2020-05-20 Dispositif de meulage

Country Status (9)

Country Link
US (1) US20220274225A1 (fr)
EP (1) EP3965993A1 (fr)
CN (1) CN114096380A (fr)
BR (1) BR112021023426A2 (fr)
CA (1) CA3141180A1 (fr)
DE (1) DE102019119333A1 (fr)
MA (1) MA55886A (fr)
MX (1) MX2022000577A (fr)
WO (1) WO2021008760A1 (fr)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1876404U (de) * 1963-01-22 1963-07-25 Josef Heim Handschleifmaschine zum schleifen von faelsen, profilen, kanten od. dgl.
DD225093A1 (de) * 1984-07-02 1985-07-24 Sachsenring Automobilwerke Schleifteller zur aufnahme flexibler schleifblaetter mittels saugwirkung
AT383763B (de) * 1984-11-02 1987-08-25 Braun Michael Profilschleifmaschine
DE3642086A1 (de) * 1986-12-10 1988-06-23 Fraunhofer Ges Forschung Schleifvorrichtung
DE29809710U1 (de) * 1998-05-29 1998-09-03 Mueller Heinrich Maschinelle Bearbeitungsvorrichtung
DE20221899U1 (de) * 2002-05-24 2008-12-11 FIP Forschungsinstitut für Produktionstechnik GmbH Braunschweig Feinschleifmaschine
TWI278377B (en) * 2006-03-24 2007-04-11 Jhy-Cherng Tsai Compliant suspension for precision polishing and grinding machine
TWM297810U (en) * 2006-03-24 2006-09-21 Jhy-Cherng Tsai Apparatus for precision linear polishing and grinding
DE102006047007A1 (de) * 2006-10-02 2008-04-03 Onsystem Ohg Vakuumbefestigung von Schleifmaterial
WO2009104614A1 (fr) * 2008-02-22 2009-08-27 日本ミクロコーティング株式会社 Procédé et appareil de polissage d'une section d'extrémité périphérique extérieure d'une tranche de semi-conducteur
ITUD20080204A1 (it) * 2008-09-26 2010-03-27 Delle Vedove Levigatrici S P A Macchina levigatrice e relativo procedimento
US8148266B2 (en) * 2009-11-30 2012-04-03 Corning Incorporated Method and apparatus for conformable polishing
JP6071611B2 (ja) * 2013-02-13 2017-02-01 Ｍｉｐｏｘ株式会社 オリエンテーションフラット等切り欠き部を有する、結晶材料から成るウエハの周縁を、研磨テープを使用して研磨することにより円形ウエハを製造する方法
DE102017108191A1 (de) * 2017-04-18 2018-10-18 Rud. Starcke Gmbh & Co. Kg Verfahren zum partiellen Schleifen einer Oberfläche sowie Schleifeinrichtung
CN107263262B (zh) * 2017-07-13 2023-05-26 哈尔滨工业大学深圳研究生院 一种六自由度砂带磨削单元姿态补偿装置

Also Published As

Publication number Publication date
US20220274225A1 (en) 2022-09-01
DE102019119333A1 (de) 2021-01-21
MX2022000577A (es) 2022-02-10
CN114096380A (zh) 2022-02-25
WO2021008760A1 (fr) 2021-01-21
MA55886A (fr) 2022-03-16
CA3141180A1 (fr) 2021-01-21
BR112021023426A2 (pt) 2022-01-04

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