US20180264628A1 - Carrier body for a grinding or a cutting tool - Google Patents

Carrier body for a grinding or a cutting tool Download PDF

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Publication number
US20180264628A1
US20180264628A1 US15/918,275 US201815918275A US2018264628A1 US 20180264628 A1 US20180264628 A1 US 20180264628A1 US 201815918275 A US201815918275 A US 201815918275A US 2018264628 A1 US2018264628 A1 US 2018264628A1
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US
United States
Prior art keywords
carrier body
recesses
grinding
carrier
cutting 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.)
Abandoned
Application number
US15/918,275
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English (en)
Inventor
Martin GRUENDHAMMER
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
Assigned to TYROLIT - SCHLEIFMITTELWERKE SWAROVSKI K.G. reassignment TYROLIT - SCHLEIFMITTELWERKE SWAROVSKI K.G. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRUENDHAMMER, MARTIN
Publication of US20180264628A1 publication Critical patent/US20180264628A1/en
Abandoned 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
    • B24D5/16—Bushings; Mountings
    • 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
    • B24D5/02—Wheels in one piece
    • B24D5/04—Wheels in one piece with reinforcing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body
    • B23D61/026—Composite body, e.g. laminated
    • 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
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/003—Accessories therefor
    • 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
    • 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
    • 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
    • B24D5/123—Cut-off wheels having different cutting segments

Definitions

  • the invention relates to a carrier body for a grinding or a cutting tool, comprising a central coupling area for connecting the grinding or cutting tool to a rotary drive for rotating the grinding or cutting tool about an axis of rotation passing through the coupling area, a carrier structure adjacent thereto in the radial direction, wherein the carrier structure has recesses separate from the coupling area, and two substantially annular side surfaces which are spaced apart from each other in the axial direction across the carrier structure.
  • the invention furthermore relates to a grinding or a cutting tool with such a carrier body and an abrasive material arranged in or on the carrier body.
  • Such a carrier body is for example known from EP 2 810 739.
  • recesses which are formed as lead-throughs, are arranged in the carrier structure.
  • a carrier body with a particularly low weight is to be achieved.
  • the lead-throughs lead to undesired noise generation and, when a coolant is used, to negative effects on the operating characteristics, e.g. imbalance, due to turbulence and deflection of the coolant.
  • the lead-throughs are sealed on both sides with covering elements.
  • the production of the carrier body is, however, very elaborate as, in a first working step, the carrier body has to be provided with lead-throughs, in a second working step, a first covering element has to be applied to one side of the lead-throughs and finally, in a third working step, a further covering element has to be applied to the other side of the lead-throughs.
  • the application of the covering elements itself is also very elaborate as, on the one hand, only a bonding in the inner area of the carrier body is effected and, on the other hand, a gap to the casing body is created in the radial direction. Both steps require high precision during the processing.
  • removed material can collect in the gaps between the covering elements and the casing body and can thus significantly impair the grinding properties. Through the gap, there is even a risk that when a coolant is used the coolant will collect in the lead-throughs, thereby resulting in an imbalance of the carrier body.
  • the object of the present invention is to indicate a carrier body which is improved compared with the state of the art, can be produced in particular more simply and inexpensively and has an increased lifetime with substantially constant grinding properties, as well as a grinding or cutting tool with such a carrier body which is improved compared with the state of the art.
  • the asymmetry has no adverse effects on the operating characteristics of the carrier body or of a grinding or cutting tool produced therewith, which a person skilled in the art would thus not have expected.
  • the recesses are open to the same side surface of the carrier body. This is advantageous insofar as the carrier body has to be machined only from one side to produce the recesses.
  • the recesses are sealed on the side surface which is opposite the side surface, to which the recesses are open, by a side wall which is connected to the carrier structure in one piece, preferably wherein, in the axial direction, the side wall has a thickness of from 0.3% to 15%, preferably approx. 10%, of the thickness of the carrier body.
  • protection is also sought for a grinding or cutting tool with a carrier body according to the invention and an abrasive material arranged in or on the carrier body, preferably wherein the carrier body has a peripheral surface and the abrasive material is arranged in the form of an abrasive layer on the peripheral surface of the carrier body.
  • the abrasive material can be for example CBN or diamond.
  • the abrasive layer can be applied on the peripheral surface using conventional bonding systems, for example by means of a galvanic coating, or by means of bonded or soldered-on abrasive segments with ceramic bonding matrix, or synthetic resin or metal bonding.
  • FIG. 1 a a carrier body for a grinding or cutting tool according to a first preferred embodiment example in a top view onto a side surface
  • FIG. 1 b the carrier body according to FIG. 1 a in a top view onto the opposite side surface
  • FIG. 2 the carrier body according to FIGS. 1 a and 1 b in a cross-sectional view along the cross-sectional plane 27 drawn in in FIG. 1 a,
  • FIG. 3 a carrier body for a grinding or cutting tool according to a second preferred embodiment example in a cross-sectional view
  • FIG. 4 a carrier body for a grinding or cutting tool according to a third preferred embodiment example in a cross-sectional view
  • FIG. 5 a grinding or cutting tool with a carrier body according to a fifth preferred embodiment example and an abrasive material in a cross-sectional view.
  • the carrier body 1 for a grinding or a cutting tool represented in FIGS. 1 a , 1 b and 2 comprises a central coupling area 3 for connecting the grinding or cutting tool formed with the carrier body 1 to a rotary drive for rotating the grinding or cutting tool about an axis of rotation 4 passing through the coupling area 3 .
  • the coupling area 3 can have a central lead-through 20 which can, for example, accommodate a driveable spindle.
  • means 21 , 22 can additionally be provided, which are arranged neighbouring the lead-through 20 .
  • the means 21 , 22 can be, for example, lead-throughs for the accommodation of screws or the like.
  • a carrier structure 6 is adjacent to the coupling area 3 .
  • the carrier structure 6 has recesses 7 , 8 separate from the coupling area 3 .
  • the recesses 7 , 8 can have quite different cross-sectional shapes.
  • the recesses 7 have a circular cross section in a cross-sectional plane 19 normal to the axis of rotation 4 .
  • the recesses 8 have a slotted hole-shaped cross section.
  • the carrier body 1 furthermore comprises two substantially annular side surfaces 9 , 10 , which are spaced apart from each other in the axial direction 11 across the support structure 6 . If the carrier body 1 is regarded as a circular cylinder with two cylinder end surfaces and a lateral surface, the side surfaces 9 , 10 are therefore part of the cylinder end surfaces.
  • the recesses 7 , 8 are open only to one of the side surfaces 9 , 10 of the carrier body 1 . More precisely, the recesses 7 , 8 are open to the same side surface, namely the side surface provided with the reference number 9 , of the carrier body 1 .
  • the recesses 7 , 8 are sealed by a side wall 12 , which is connected to the carrier structure 6 in one piece.
  • a side wall 12 which is connected to the carrier structure 6 in one piece.
  • the side wall 12 has a thickness 13 of from 0.3% to 15% of the thickness 14 of the carrier body 1 .
  • the side wall 12 has a thickness 13 in the axial direction 11 of approx. 10% of the thickness 14 of the carrier body 1 .
  • the recesses 7 , 8 on the side surface 9 In order to keep the weight of the carrier body 1 as low as possible and at the same time to achieve sufficient stability, it is possible for the recesses 7 , 8 on the side surface 9 , to which the recesses 7 , 8 are open, to occupy a total area of from 50% to 90%. In the case represented, the recesses 7 , 8 on this side surface 9 occupy a total area of approx. 75% of the side surface 9 .
  • the carrier body 1 is formed asymmetrically relative to the centre plane 26 normal to the axis of rotation 4 . This fundamentally differentiates it from the carrier bodies known from the state of the art.
  • the advantages of the structure according to the invention of the carrier body 1 are particularly evident in the case of carrier bodies with a comparatively large diameter of from 250 mm to 700 mm.
  • the carrier body 1 has a diameter 23 of approx. 400 mm.
  • the thickness 14 of the carrier body 1 in the axial direction 11 can be, for example, from 20 mm to 300 mm. In the case represented, the carrier body 1 has a thickness 14 in the axial direction 11 of approx. 30 mm.
  • the embodiment example according to FIG. 3 differs from the embodiment example according to FIGS. 1 a , 1 b and 2 in that the recesses 7 , 8 on the side surface 9 , to which the recesses 7 , 8 are open, are covered by an annular cover 15 .
  • This cover 15 is used to prevent turbulence of a coolant used to cool the carrier body 1 .
  • the cover 15 reduces still further the generation of noise in the grinding or cutting insert. Turbulences in the air are also prevented.
  • the cover 15 is bonded to the side surface 9 , to which the recesses 7 , 8 are open. In comparison with the state of the art, there is a bonding at every point at which the cover 15 contacts the side surface 9 . In this way, the recesses 7 , 8 can be reliably covered.
  • the side surface 9 to which the recesses 7 , 8 are open, has a cut-out 16 which has a shape corresponding to the cover 15 .
  • the cover 15 is inserted in this cut-out 16 substantially without gaps. This fact also represents a difference from the state of the art, where there was still a preconception that a gap had to be left to the casing body in order to guarantee the radial elasticity of the carrier body 1 .
  • the cover 15 can have a thickness 17 of from 0.3% to 15% of the thickness 14 of the carrier body 1 . In the case specifically represented, in the axial direction 11 , the cover 15 has a thickness 17 of approx. 10% of the thickness 14 of the carrier body 1 .
  • the embodiment example represented in FIG. 4 differs from the embodiment example represented in FIG. 3 in that the recesses 7 , 8 are filled with a filler material 18 in the form of synthetic resin.
  • This filler material 18 essentially has the same function as the cover 15 , which is used in the case of the embodiment example according to FIG. 3 .
  • FIG. 5 shows a grinding tool 2 which has a carrier body, wherein the carrier body comprises a peripheral surface 25 .
  • An abrasive material 24 in the form of an abrasive layer is arranged on the peripheral surface 25 .
  • the carrier body is substantially formed like the carrier body 1 according to FIGS. 1 a , 1 b and 2 , with the difference that no cut-out 16 is provided.
  • a further difference consists in that the peripheral surface 25 is formed smooth.
  • the shape of the peripheral surface 25 is, however, arbitrary, and can be chosen differently according to the application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
US15/918,275 2017-03-14 2018-03-12 Carrier body for a grinding or a cutting tool Abandoned US20180264628A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50201/2017A AT519694B1 (de) 2017-03-14 2017-03-14 Trägerkörper für ein Schleif- oder ein Schneidwerkzeug
ATA50201/2017 2017-03-14

Publications (1)

Publication Number Publication Date
US20180264628A1 true US20180264628A1 (en) 2018-09-20

Family

ID=61526611

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/918,275 Abandoned US20180264628A1 (en) 2017-03-14 2018-03-12 Carrier body for a grinding or a cutting tool

Country Status (6)

Country Link
US (1) US20180264628A1 (de)
EP (1) EP3395502B1 (de)
CN (1) CN108568757A (de)
AT (1) AT519694B1 (de)
ES (1) ES2910096T3 (de)
PL (1) PL3395502T3 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200189069A1 (en) * 2018-12-14 2020-06-18 Midwest Hardfacing Llc Grinding roll wheel with tungsten carbide
CN113681726A (zh) * 2021-08-24 2021-11-23 北新集团建材股份有限公司 一种石膏板高速锯切系统及其刀头

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110919555B (zh) * 2019-12-19 2024-04-16 宋京新 一种外转内冷可互换电镀杯型砂轮
CN114571025B (zh) * 2022-04-01 2024-04-12 嘉兴沃尔德金刚石工具有限公司 一种金刚石钎焊磨轮制孔方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2521678A1 (de) * 1975-05-15 1976-11-25 Wendt Gmbh Aus metall bestehender tragkoerper fuer schleifscheiben
GR861703B (en) * 1986-07-01 1986-07-09 Tasoulidis Haralampos Noiseless diamond desk for cutting marbles and granites
DE8915764U1 (de) * 1989-06-10 1991-04-25 Fa. Joh. Wilh. Arntz, 5630 Remscheid, De
DE20108491U1 (de) * 2001-05-18 2001-08-02 Prekwinkel Maschinen Und Anlag Kreisförmiges Schneidbrett
DE102013105616A1 (de) * 2013-05-31 2014-12-04 Dr. Müller Diamantmetall AG Werkzeug zum Bearbeiten von Materialien
CN204935411U (zh) * 2015-09-06 2016-01-06 江西省定海砂轮有限公司 易散热易排屑的砂轮

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200189069A1 (en) * 2018-12-14 2020-06-18 Midwest Hardfacing Llc Grinding roll wheel with tungsten carbide
CN113681726A (zh) * 2021-08-24 2021-11-23 北新集团建材股份有限公司 一种石膏板高速锯切系统及其刀头

Also Published As

Publication number Publication date
EP3395502B1 (de) 2022-02-09
CN108568757A (zh) 2018-09-25
AT519694A1 (de) 2018-09-15
PL3395502T3 (pl) 2022-06-20
AT519694B1 (de) 2021-09-15
EP3395502A1 (de) 2018-10-31
ES2910096T3 (es) 2022-05-11

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