EP3000558A2 - Outil destiné au traitement de matériaux - Google Patents

Outil destiné au traitement de matériaux Download PDF

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Publication number
EP3000558A2
EP3000558A2 EP15187427.8A EP15187427A EP3000558A2 EP 3000558 A2 EP3000558 A2 EP 3000558A2 EP 15187427 A EP15187427 A EP 15187427A EP 3000558 A2 EP3000558 A2 EP 3000558A2
Authority
EP
European Patent Office
Prior art keywords
carrier body
tool
tool according
hub
bushings
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
EP15187427.8A
Other languages
German (de)
English (en)
Other versions
EP3000558B1 (fr
EP3000558A3 (fr
Inventor
Michael Schulze
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.)
Dr Mueller Diamantmetall AG
Original Assignee
Dr Mueller Diamantmetall 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 Dr Mueller Diamantmetall AG filed Critical Dr Mueller Diamantmetall AG
Priority to PL15187427T priority Critical patent/PL3000558T3/pl
Publication of EP3000558A2 publication Critical patent/EP3000558A2/fr
Publication of EP3000558A3 publication Critical patent/EP3000558A3/fr
Application granted granted Critical
Publication of EP3000558B1 publication Critical patent/EP3000558B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/007—Weight compensation; Temperature compensation; Vibration damping

Definitions

  • the invention relates to a tool for processing materials.
  • the invention relates to a tool for processing materials, preferably a grinding wheel, with a carrier body with bushings, wherein the tool has a hub for receiving a drive shaft, and in which the bushings are at least partially closed by suitable materials.
  • the US 4,004,378 shows a grinding wheel whose rotationally symmetrical support body is provided on its peripheral surface with an abrasive coating.
  • the carrier body also has feedthroughs for achieving a substantially parallel to the axis of rotation of the carrier body extending air flow.
  • the disclosed there devices are characterized by a particularly low weight, which has an advantageous effect on the development of vibration and the handling when handling these abrasive tools
  • the inventive design of the bushings of the carrier body leads to a predetermined radial elasticity of the grinding tool, which a further damping of vibrations in grinding operation leads and thus to very good processing results.
  • the present invention is therefore based on the object to provide a tool for processing materials of the type mentioned above, which overcomes the disadvantages of the prior art and in particular without sacrificing the processing result leads to a reduced noise in the grinding operation.
  • the tool for machining materials in particular a grinding wheel, with respect to a rotation axis substantially cylindrically symmetrical outer geometry, with an inner hub or axle through whose center the axis of rotation extends centrally, a concentric to this, outer shell body whose peripheral surface with an abrasive coating is provided, and a carrier body arranged between the hub and the jacket body, which is preferably integral with the hub and / or the jacket body.
  • the carrier body is configured with at least two feedthroughs, which preferably extend from the inner region of the carrier body, ie from the edge region of the carrier body lying at the hub, in the direction of the outer edge of the carrier body, ie towards the jacket body, wherein, preferably in each sectional plane of the carrier body, the ratio A D / A T is greater than 1, preferably greater than 2, preferably greater than 3 and preferably greater than 4, from the sum of the areas A D forming the lead body material and the area A T forming the carrier body material.
  • the areas forming the leadthroughs A D are therefore greater in total than the surface of the material forming the support body A T , and preferably significantly larger.
  • At least some of the bushings and preferably all bushings are filled with a filling material, preferably a foamed filling material, so that there is a closure of the bushings with a substantially constant low weight of the tool and equally constant radial elasticity of the tool.
  • a filling material preferably a foamed filling material
  • preferred filling materials are selected from a group comprising foamed plastics and metals, in particular polyurethane foams, PVC foams or polystyrene foams, foamed aluminum and the like of similar materials.
  • a cover is arranged on at least one side of the tool so on at least one of the two cylinder cover surfaces.
  • the cover member is preferably made of a material selected from the group consisting of plastics, light metals, glass fiber or carbon fiber composite materials, fabrics and especially coated fabrics, films, fabric-reinforced composites, combinations of the above materials and the like of similar materials.
  • the cover When using a cover, it may be advantageous to the cover substantially over the entire surface of the support body and also of the filler cohesively with this to connect as well as in the area over the with the filler filled bushings of the support body to create a sufficiently viable coverage of the bushings or the filling material.
  • a permanently elastic connecting material with a relatively high modulus of elasticity is preferably used, such as, for example, adhesives based on resin, plastic or silicone.
  • the solution according to the invention ensures that the tool does not lose its radial elasticity, so that the advantageous grinding properties achieved with the generic tools are maintained.
  • the carrier body may be made of a variety of materials, such as steel, aluminum, copper, bronze or the like, since the vibration is not carried out by the material properties themselves, but by the geometric configuration of the bushings of the carrier body.
  • both a significant weight reduction can be achieved as a targeted vibration damping, especially in metallic support bodies, which have almost no radial elasticity in support bodies of solid material or support bodies with bushings of small geometric dimensions.
  • the thickness of the carrier body (in the direction of the axis of rotation) is smaller than that of the jacket body and / or the hub, so that the carrier body rebounds with respect to the jacket body or the cylindrical top surfaces defined by the latter and in this recess the cover is received.
  • the bushings are executed in the base in the form of squares, wherein the long sides are preferably connected radially extending with the short sides and wherein the short sides are arranged on the inner or outer region of the carrier body.
  • a straight course of the long sides of the bushings is preferred but not required.
  • a rounded design of the inner corners of the squares is preferred so that sharp-edged inner corners are present at the bushings.
  • At least one of the short sides in the plan view can be at least partially circular-segment-shaped, for example concentric with the outer circumference of the lateral surface.
  • the two long sides of the respective bushing are designed to be of equal length, so that the bushings of the carrier body in this embodiment appear substantially annular segment-shaped.
  • the quadrangular passages are distorted or bent about a point located outside the respective feedthrough so that the long sides of the feedthroughs are substantially arcuate or preferably circular segmented in plan view.
  • the spokes emerging from the material of this embodiment remaining between adjacent feedthroughs are thus arcuately curved and preferably circularly curved and extend in the inner region of the carrier body, ie substantially initially radially outwardly from the hub or axle receptacle, and then by their curvature to experience a kind of asymptotic approach towards the scope of the tool.
  • the degree or extent of the approach of the spokes to the circumference of the tool is different selectable and, as it were, an essential parameter for the radial elasticity of the tool.
  • the long sides of adjacent bushings are substantially parallel, this equally applies to substantially radially extending long sides of the bushings as well as for curved or even circular segment running. Nevertheless, for example, those embodiments are preferred within the scope of the invention, in which a tapering of the spokes is carried out towards the outer region of the carrier body by a non-parallel course of the long sides of passages, whereby further influencing the radial elasticity and the weight of the tools according to the invention this Embodiment can be achieved.
  • the bushings of the carrier body from its opposite cylinder top surfaces ago essentially incorporated to the middle in the material of the carrier body, for example by milling. It is particularly advantageous, the bushings, which are incorporated from the second side, so for example, the upper cylinder top surface of the carrier body ago by a predetermined rotation angle ⁇ rotates about the axis of rotation with respect to those of the first side of the carrier body, so for example the lower cylinder top surface will be incorporated to rotate. As a result, the spokes between adjacent feedthroughs of one side of the carrier body are thus substantially not congruent with the spokes between adjacent feedthroughs of the other side of the carrier body.
  • the abrasive coating is applied by gluing or sintering or similar known methods on the outer peripheral surface of the sheath body and preferably selected from a group of diamond needles such as PCD, MKD, CVD, CBN needles, metal, plastic or ceramic bonded Diamonds, metal or plastic bonded boron nitride, in particular cubic boron nitride.
  • a group of diamond needles such as PCD, MKD, CVD, CBN needles, metal, plastic or ceramic bonded Diamonds, metal or plastic bonded boron nitride, in particular cubic boron nitride.
  • the Fig. 1 shows a generic tool with a support body 1, a shell body 4 with an abrasive coating B and a hub or receptacle 5.
  • the support body has a plurality of bushings 2 and lying between the passages 2 spokes 3, which in this case circular segment-shaped from the inner region of the support body to extend its outer region and approach in the direction of extension of the course of the shell body.
  • Fig. 2 and 3 show schematic sectional views of grinding wheels according to the present invention, wherein for ease of explanation, the tools according to the invention along a section line that the section line XX of Fig. 1 corresponds, cut are.
  • like reference numerals designate corresponding elements or elements with corresponding functions.
  • Fig. 2 shows an embodiment of the invention in which the bushings 2 are filled with a filling material 20, preferably a foamed plastic such as Pulyurethan- or PVC foam.
  • the filler material preferably terminates flush with the cylinder cover surfaces of the carrier body, so that they are substantially planar.
  • Fig. 3 A development of the embodiment according to Fig. 2 is in Fig. 3 shown. Accordingly, the cylindrical top surfaces of the carrier body are provided with cover elements 10, wherein these are substantially flat connected to the carrier body and in particular its spokes 3 and optionally also the surfaces of the filling material 20 cohesively.
  • the cover elements 10 are made of a thin but tear-resistant fabric, so that a durable, yet very light surface is formed by the cover 10 by the full-surface cohesive connection of the fabric with the surface of the carrier body and optionally also the filling material. In particular, this is the case when the tissue is impregnated by the material used for the cohesive connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP15187427.8A 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux Not-in-force EP3000558B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15187427T PL3000558T3 (pl) 2013-05-31 2014-05-07 Narzędzie do obróbki materiałów

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013105616.4A DE102013105616A1 (de) 2013-05-31 2013-05-31 Werkzeug zum Bearbeiten von Materialien
EP14167429.1A EP2810739B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14167429.1A Division EP2810739B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux
EP14167429.1A Division-Into EP2810739B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux

Publications (3)

Publication Number Publication Date
EP3000558A2 true EP3000558A2 (fr) 2016-03-30
EP3000558A3 EP3000558A3 (fr) 2016-04-13
EP3000558B1 EP3000558B1 (fr) 2017-07-12

Family

ID=50639384

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15187427.8A Not-in-force EP3000558B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux
EP14167429.1A Not-in-force EP2810739B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14167429.1A Not-in-force EP2810739B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux

Country Status (4)

Country Link
EP (2) EP3000558B1 (fr)
DE (1) DE102013105616A1 (fr)
HU (2) HUE034547T2 (fr)
PL (2) PL3000558T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016102336A1 (de) * 2016-02-10 2017-08-10 Weber Maschinenbau Gmbh Breidenbach Rotationskörper
AT518908B1 (de) * 2016-08-11 2019-04-15 Tyrolit Schleifmittelwerke Swarovski Kg Trägerkörper für Schleifwerkzeuge
AT519694B1 (de) * 2017-03-14 2021-09-15 Tyrolit Schleifmittelwerke Swarovski Kg Trägerkörper für ein Schleif- oder ein Schneidwerkzeug
CN107303655B (zh) * 2017-07-28 2019-05-24 义乌市台荣超硬制品有限公司 一种组合式磨盘结构
DE102022113308B4 (de) 2022-05-25 2024-06-27 Lightway GmbH Schleifscheibenaufnahme

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004378A (en) 1975-07-18 1977-01-25 Engelhard Minerals & Chemicals Corporation Grinding wheel with integral blower
EP2641696A1 (fr) 2012-03-13 2013-09-25 Dr. Müller Diamantmetall AG Outil destiné au traitement de matériaux

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8427120U1 (de) * 1984-12-06 Uhle, Max, Castelnuovo del Garda Scheibe
DE732575C (de) * 1940-04-21 1943-03-05 Hellmuth Steglich Zahnabschleifscheibe mit Anfeuchtungs-Einrichtung
US2508946A (en) * 1947-11-28 1950-05-23 Robert H Hoffman Safety abrasive wheel and arbor flange
US3145511A (en) * 1961-12-04 1964-08-25 Joseph L Bird Grinding or abrading tool
DE2521678A1 (de) * 1975-05-15 1976-11-25 Wendt Gmbh Aus metall bestehender tragkoerper fuer schleifscheiben
AT400013B (de) * 1990-05-07 1995-09-25 Rappold International Sales Ag Schleifanordnung
US8157619B2 (en) * 2005-06-27 2012-04-17 Husqvarna Professional Outdoor Products Inc. Tools and methods for making and using tools, blades and methods of making and using blades

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004378A (en) 1975-07-18 1977-01-25 Engelhard Minerals & Chemicals Corporation Grinding wheel with integral blower
EP2641696A1 (fr) 2012-03-13 2013-09-25 Dr. Müller Diamantmetall AG Outil destiné au traitement de matériaux

Also Published As

Publication number Publication date
EP3000558B1 (fr) 2017-07-12
HUE036768T2 (hu) 2018-07-30
EP3000558A3 (fr) 2016-04-13
PL3000558T3 (pl) 2017-12-29
DE102013105616A1 (de) 2014-12-04
EP2810739B1 (fr) 2017-03-08
EP2810739A1 (fr) 2014-12-10
HUE034547T2 (en) 2018-02-28
PL2810739T3 (pl) 2017-10-31

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