EP2810739A1 - Outil destiné au traitement de matériaux - Google Patents

Outil destiné au traitement de matériaux Download PDF

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Publication number
EP2810739A1
EP2810739A1 EP14167429.1A EP14167429A EP2810739A1 EP 2810739 A1 EP2810739 A1 EP 2810739A1 EP 14167429 A EP14167429 A EP 14167429A EP 2810739 A1 EP2810739 A1 EP 2810739A1
Authority
EP
European Patent Office
Prior art keywords
carrier body
cover
hub
tool according
tool
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
EP14167429.1A
Other languages
German (de)
English (en)
Other versions
EP2810739B1 (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
Priority to EP15187427.8A priority patent/EP3000558B1/fr
Priority to PL14167429T priority patent/PL2810739T3/pl
Publication of EP2810739A1 publication Critical patent/EP2810739A1/fr
Application granted granted Critical
Publication of EP2810739B1 publication Critical patent/EP2810739B1/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 means for covering the bushings and / or in which the bushings by suitable materials at least partially are closed.
  • the US 4,004,378 shows a grinding wheel, the 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.
  • a European patent application discloses a tool for machining surfaces, which due to the specific design of the support body, and in particular the arranged therein, is particularly advantageous in terms of its grinding properties.
  • the disclosed there devices are characterized by a particularly low weight, which has an advantageous effect on the development of vibration and handling when handling these abrasive tools, on the other hand, the inventive design of the bushings of the carrier body 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 machining 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 feedthroughs and preferably all feedthroughs on at least one side of the tool are thus substantially completely covered on at least one of the two cylinder cover surfaces with at least one cover element.
  • the cover is in this case at least in the inner region of the carrier body with this form, force and / or materially connected and concentric so on the cylinder top surface arranged the tool that a space for stretching or stretching of the cover is provided in the radial direction and equally a compression of the support body of the tool due to its radial elasticity does not lead to a tarnishing of the cover to the shell body and / or the abrasive coating.
  • At least some of the bushings are filled with a foamed filling material, so that with substantially constant low weight of the tool and also constant radial elasticity of the tool nevertheless there is a closure of the bushings.
  • the least a cover element is made in the manner of a disc of a material which has a sufficiently high breaking strength, especially in the radial direction, that even at high speeds of the tool, although an elongation of the material can take place, but not for Material break is coming. It is advantageous in this context, the use of lightweight materials to keep the material load by the centrifugal forces during grinding operation low.
  • the material of which the cover member is made is selected from a group including plastics, light metals, glass fiber or carbon fiber composites, fabrics and especially coated fabrics, films, fabric-reinforced composites, combinations of the foregoing materials and the like.
  • 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 positive, cohesive and / or cohesive connection of the cover in the interior of the carrier body or in the region of the hub, for example by a distortion of the cover against the support body and / or the hub by means of a clamping device and / or fasteners such as Screws, undercuts, clamping or clip means be sufficient although application specific, alternatively or additionally thereto, also a substantially full-surface, cohesive connection of the cover with the carrier body and optionally also the filler can be beneficial.
  • the cover in the use of non-self-supporting materials for the cover, it may also be advantageous to the cover substantially over the entire surface of the support body and optionally also of the filler cohesively with this to connect in the area above, optionally with the filler filled, implementations of the support body despite the use of such lightweight materials 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 is safe provided that the tool does not lose its radial elasticity, since the cover does not hinder radial deformation of the tool or at least predictably influenced and thus by the concrete geometry of the bushings or the remaining spoke material of the carrier body is compensated, so that achieved with the generic tools advantageous Grinding properties are preserved.
  • 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 around a point outside the respective implementation point, so that the long sides of the bushings in plan view are substantially arcuate or preferably circular segment.
  • 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 cylindrical 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 ⁇ about the axis of rotation rotates 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 passages 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 to 5 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, are cut.
  • like reference numerals designate corresponding elements or elements with corresponding functions.
  • FIG. 2 shown first embodiment according to the first aspect of the invention is derived from the generic embodiment of the Fig. 1 From here, the bushings 2 of the carrier body at the two cylinder top surfaces of the grinding wheel, each with an annular cover 10 are substantially completely covered.
  • the cover 10 is located on both sides in a recess formed by the support body and extend radially with respect to the axis of rotation of the tool.
  • the cover elements are presently made of light metal or carbon fiber reinforced plastics or ceramics, for example.
  • the cover elements 10 are connected to it by a material connection 11, whereas in the area of the carrier body lying further outside there is no material connection between the material of the carrier body and the cover elements 10.
  • the cover 10 are on the support body in the outer region substantially only and there is a radial clearance 12 between the outer periphery of the cover 10 and the shell body 4 on both sides so that the cover 10 even at a high speed of the tool caused stretching or stretching of the Materials do not come on the jacket body 4 to the plant.
  • the cover on both sides of the hub or the support body by screwing from the outside parallel to the direction of the axis of rotation with the support body or the hub to screw or brace.
  • Fig. 4 shows an embodiment of the invention according to the second aspect, in which the bushings 2 are filled with a filling material 20, preferably a foamed plastic such as polyurethane 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. 5 A development of the embodiment according to Fig. 4 is in Fig. 5
  • the cylinder cover surfaces of the carrier body are in turn 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 10 are made of a thin but tear-resistant fabric, so that by the full-surface cohesive connection of the fabric with the surface of the support body and optionally also of the filling material a durable, yet very light surface is formed by the cover 10. In particular, this is the case when the tissue is impregnated by the material used for the cohesive connection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP14167429.1A 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux Not-in-force EP2810739B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL15187427T PL3000558T3 (pl) 2013-05-31 2014-05-07 Narzędzie do obróbki materiałów
EP15187427.8A EP3000558B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux
PL14167429T PL2810739T3 (pl) 2013-05-31 2014-05-07 Narzędzie do obróbki materiałów

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013105616.4A DE102013105616A1 (de) 2013-05-31 2013-05-31 Werkzeug zum Bearbeiten von Materialien

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP15187427.8A Division EP3000558B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux
EP15187427.8A Division-Into EP3000558B1 (fr) 2013-05-31 2014-05-07 Outil destiné au traitement de matériaux

Publications (2)

Publication Number Publication Date
EP2810739A1 true EP2810739A1 (fr) 2014-12-10
EP2810739B1 EP2810739B1 (fr) 2017-03-08

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 Before (1)

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

Country Status (4)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017137264A3 (fr) * 2016-02-10 2017-10-05 Weber Maschinenbau Gmbh Breidenbach Corps tournant
CN107303655A (zh) * 2017-07-28 2017-10-31 义乌市台荣超硬制品有限公司 一种组合式磨盘结构
WO2018027250A1 (fr) * 2016-08-11 2018-02-15 Tyrolit - Schleifmittelwerke Swarovski K.G. Corps de support pour outils de rectification
CN108568757A (zh) * 2017-03-14 2018-09-25 蒂罗利特磨料机械斯沃罗夫斯基两合公司 用于磨削或切割工具的支架体
DE102022113308A1 (de) 2022-05-25 2023-11-30 Lightway GmbH Schleifscheibenaufnahme

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145511A (en) * 1961-12-04 1964-08-25 Joseph L Bird Grinding or abrading tool
US4004378A (en) 1975-07-18 1977-01-25 Engelhard Minerals & Chemicals Corporation Grinding wheel with integral blower
US20080210212A1 (en) * 2005-06-27 2008-09-04 Anthony Baratta Tools and Methods for Making and Using Tools, Blades and Methods of Making and Using Blades

Family Cites Families (6)

* 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
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
DE102012005085A1 (de) 2012-03-13 2013-09-19 Dr. Müller Diamantmetall AG Werkzeug zum Bearbeiten von Materialien

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145511A (en) * 1961-12-04 1964-08-25 Joseph L Bird Grinding or abrading tool
US4004378A (en) 1975-07-18 1977-01-25 Engelhard Minerals & Chemicals Corporation Grinding wheel with integral blower
US20080210212A1 (en) * 2005-06-27 2008-09-04 Anthony Baratta Tools and Methods for Making and Using Tools, Blades and Methods of Making and Using Blades

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017137264A3 (fr) * 2016-02-10 2017-10-05 Weber Maschinenbau Gmbh Breidenbach Corps tournant
WO2018027250A1 (fr) * 2016-08-11 2018-02-15 Tyrolit - Schleifmittelwerke Swarovski K.G. Corps de support pour outils de rectification
CN109689296A (zh) * 2016-08-11 2019-04-26 蒂罗利特磨料机械斯沃罗夫斯基两合公司 用于磨具的支承体
US20190168360A1 (en) * 2016-08-11 2019-06-06 Tyrolit Schleifmittelwerke Swarovski K.G. Carrier body for grinding tools
EP3575034A3 (fr) * 2016-08-11 2020-04-01 Tyrolit - Schleifmittelwerke Swarovski K.G. Corps de support pour outils à rectifier
CN108568757A (zh) * 2017-03-14 2018-09-25 蒂罗利特磨料机械斯沃罗夫斯基两合公司 用于磨削或切割工具的支架体
EP3395502A1 (fr) * 2017-03-14 2018-10-31 Tyrolit - Schleifmittelwerke Swarovski K.G. Corps support pour un outil de meulage ou de coupe
CN107303655A (zh) * 2017-07-28 2017-10-31 义乌市台荣超硬制品有限公司 一种组合式磨盘结构
DE102022113308A1 (de) 2022-05-25 2023-11-30 Lightway GmbH Schleifscheibenaufnahme
DE102022113308B4 (de) * 2022-05-25 2024-06-27 Lightway GmbH Schleifscheibenaufnahme

Also Published As

Publication number Publication date
EP3000558B1 (fr) 2017-07-12
PL2810739T3 (pl) 2017-10-31
EP3000558A2 (fr) 2016-03-30
EP2810739B1 (fr) 2017-03-08
DE102013105616A1 (de) 2014-12-04
PL3000558T3 (pl) 2017-12-29
HUE036768T2 (hu) 2018-07-30
EP3000558A3 (fr) 2016-04-13
HUE034547T2 (en) 2018-02-28

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