EP0451572A2 - Disc à meuler - Google Patents

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Publication number
EP0451572A2
EP0451572A2 EP91104483A EP91104483A EP0451572A2 EP 0451572 A2 EP0451572 A2 EP 0451572A2 EP 91104483 A EP91104483 A EP 91104483A EP 91104483 A EP91104483 A EP 91104483A EP 0451572 A2 EP0451572 A2 EP 0451572A2
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding wheel
electrically conductive
fabric
conductive metal
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.)
Withdrawn
Application number
EP91104483A
Other languages
German (de)
English (en)
Other versions
EP0451572A3 (en
Inventor
Wolfgang Huber
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.)
Tyrolit-Schleifmittelwerke Swarovski KG
Original Assignee
Tyrolit-Schleifmittelwerke Swarovski 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 Tyrolit-Schleifmittelwerke Swarovski KG filed Critical Tyrolit-Schleifmittelwerke Swarovski KG
Publication of EP0451572A2 publication Critical patent/EP0451572A2/fr
Publication of EP0451572A3 publication Critical patent/EP0451572A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/12—Cut-off wheels

Definitions

  • the invention relates to a grinding wheel, in particular a cutting wheel with a grinding body made of abrasive grain, binder and preferably filler-active and grinding-inactive fillers, the grinding body being provided with at least one wearing fabric.
  • the invention relates to a device for determining the degree of wear of a grinding wheel.
  • the object of the invention is therefore to provide a grinding or cutting-off wheel, the degree of wear of which can be controlled by an electronic sensor, and the indicator of which does not significantly influence the accuracy of the grinding wheel or the MAK values which arise when the grinding wheel is worn.
  • the object of the invention is achieved in that the fabric, which is inserted on a flat side of the grinding wheel or within the wheel width in this, has electrically conductive metal threads and / or that at least one electrically conductive metal thread or foil strip is braided into the tissue, the electrically conductive metal threads or foil strips being at least partially on the surface of the grinding wheel, so that they can be scanned by an electrical sensor.
  • Such a fabric with electrically conductive metal threads can be arranged on one as well as on both flat sides of the grinding wheel.
  • An embodiment of the invention provides that only a part of the threads forming the fabric are electrically conductive, for example it would be possible for only the weft or the warp of the fabric to consist of metal threads.
  • the metallically conductive threads can form the fabric or part of the fabric, but they can also be braided into the fabric. It is essential that the fabric enables the metallically conductive metal threads to be held absolutely securely on the grinding wheel or in the grinding wheel body. It has been found that individual threads placed laterally on the grinding wheel are torn away during operation.
  • the fabric with electrically conductive metal threads attached to the flat side of the grinding body is advantageously wider-meshed than a reinforcing fabric located in the grinding body.
  • the device according to the invention is characterized in that the fabric, which is inserted on a flat side of the grinding wheel or within the wheel width in this, has electrically conductive metal threads and / or in that at least one electrically conductive metal thread or foil strip is woven into the tissue, the electrically conductive metal threads or foil strips are at least partially on the surface of the grinding wheel and in that the device is provided with an electrical sensor which measures the wear of the metal thread or foil strips.
  • Fig. 1 shows a schematic side view of a grinding wheel according to the invention
  • Fig. 2 shows a section along the line II Fig. 1
  • Fig. 3 shows a section of the side view
  • Fig. 4 shows a view from the line of the arrow A of Fig. 3rd
  • the grinding wheel according to the invention has a conventional grinding body 1 with abrasive grain, for example corundum, an organic or inorganic binder and preferably fillers that are both grinding and inactive.
  • abrasive grain for example corundum
  • an organic or inorganic binder preferably fillers that are both grinding and inactive.
  • a conventional reinforcing fabric 2 consisting of carbon fibers or glass fibers is inserted into the grinding body 1.
  • a wide-mesh fabric 3 is pressed into the abrasive body 1 that is formed by metallic threads 4 in the embodiment shown in FIG. 2.
  • the metallic threads 4 serve an electronic sensor as an indicator of the degree of wear of the grinding wheel, since they are used up together with the grinding wheel material.
  • the fabrics 3 have good anchoring with the material of the grinding wheel 1, which is obtained by partially pressing them into the grinding wheel 1.
  • the adhesion of the fabric 3 can be increased by an adhesion improver.
  • the fabrics 3 are made of non-electrically conductive material, but additional, metallic, electrically conductive threads or foil strips 5 are woven into this fabric 3.
  • the metallic conductive Threads 5 or film strips are aligned radially in the grinding wheel.
  • Preferred materials for the electrically conductive threads 4, 5 are copper and aluminum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Woven Fabrics (AREA)
EP19910104483 1990-04-11 1991-03-22 Grinding wheel Withdrawn EP0451572A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT871/90 1990-04-11
AT87190A AT396213B (de) 1990-04-11 1990-04-11 Schleifscheibe

Publications (2)

Publication Number Publication Date
EP0451572A2 true EP0451572A2 (fr) 1991-10-16
EP0451572A3 EP0451572A3 (en) 1992-02-05

Family

ID=3501734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910104483 Withdrawn EP0451572A3 (en) 1990-04-11 1991-03-22 Grinding wheel

Country Status (2)

Country Link
EP (1) EP0451572A3 (fr)
AT (1) AT396213B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003008151A1 (fr) * 2001-07-20 2003-01-30 3M Innovative Properties Company Articles abrasifs fixes avec indicateurs d'usure
ITBS20090117A1 (it) * 2009-06-26 2010-12-27 Molemab S P A Mola abrasiva e metodo di realizzazione
DE102012002105A1 (de) * 2012-02-06 2013-08-08 Egon Evertz Kg (Gmbh & Co.) Schleifscheibe, insbesondere zum Längs- oder Querschleifen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2721771A (en) * 1970-04-09 1972-10-05 Norton Company Magnetic sheet material
DE2422940B2 (de) * 1974-05-11 1976-06-10 Werkzeugmaschinenfabrik Adolf Waldrich Coburg, 8630 Coburg Einrichtung zur steuerung der zustellbewegung eines rotierenden, von einer werkzeugspindel getragenen werkzeuges, insbesondere einer schleifscheibe
AT337033B (de) * 1974-06-17 1977-06-10 Morex Ag Flexibles schleifmittel mit antistatischen eigenschaften, insbesondere fur endlose schleifbander, und verfahren zu seiner herstellung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003008151A1 (fr) * 2001-07-20 2003-01-30 3M Innovative Properties Company Articles abrasifs fixes avec indicateurs d'usure
ITBS20090117A1 (it) * 2009-06-26 2010-12-27 Molemab S P A Mola abrasiva e metodo di realizzazione
DE102012002105A1 (de) * 2012-02-06 2013-08-08 Egon Evertz Kg (Gmbh & Co.) Schleifscheibe, insbesondere zum Längs- oder Querschleifen

Also Published As

Publication number Publication date
ATA87190A (de) 1992-11-15
EP0451572A3 (en) 1992-02-05
AT396213B (de) 1993-07-26

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