EP0605359B1 - Scheibenförmiges Schleifwerkzeug - Google Patents

Scheibenförmiges Schleifwerkzeug Download PDF

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Publication number
EP0605359B1
EP0605359B1 EP93810799A EP93810799A EP0605359B1 EP 0605359 B1 EP0605359 B1 EP 0605359B1 EP 93810799 A EP93810799 A EP 93810799A EP 93810799 A EP93810799 A EP 93810799A EP 0605359 B1 EP0605359 B1 EP 0605359B1
Authority
EP
European Patent Office
Prior art keywords
carrier body
grinding tool
cutting elements
cutter elements
tool according
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.)
Expired - Lifetime
Application number
EP93810799A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0605359A1 (de
Inventor
Karl Ernst Udert
Johann Dorfmeister
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of EP0605359A1 publication Critical patent/EP0605359A1/de
Application granted granted Critical
Publication of EP0605359B1 publication Critical patent/EP0605359B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18—Wheels of special form

Definitions

  • the invention relates to a grinding tool with a disk-shaped carrier body, the thickness of which decreases in proportion to the radius toward the outer circumference and is covered with cutting elements on the outer circumference and at least in the adjoining region close to the circumference of at least one side surface.
  • Grinding tools of the type mentioned at the outset are used to cut or grind hard materials, such as concrete or stone.
  • a grinding tool which consists of a disc-shaped carrier body, which is coated with diamond beads on its outer circumference and on both side surfaces
  • the subject of DE-A-1 957 848 is a multi-stage and multi-lane grinding and polishing tool for machining stone, concrete blocks and the like.
  • the disk-shaped carrier body has cutting elements on one side surface which have different heights from one side surface of the carrier body protrude.
  • the invention has for its object to provide a universal, economically producible sliding tool with a long service life, which is suitable for machining surfaces and can be used as a cutting disc and as a slot cutter.
  • the object is achieved in that in a grinding tool of the type mentioned at the outset, the cutting elements are connected to the carrier body by means of solder and protrude at a predetermined height from the carrier body, at least covering the area determined by the decreasing thickness on the at least one side surface, the Cutting elements are arranged at a distance from one another which corresponds to 1 to 10 times a diameter of a cutting element measured parallel to the plane of a side face of the carrier body.
  • a grinding surface is created which runs at a certain inclination with respect to the remaining side surface.
  • This inclined grinding surface enables the grinding tool to be placed at an angle to the surface to be machined during the grinding process. This prevents the tool from migrating during the grinding process.
  • the individual cutting elements are connected by means of a solder, which has the property of connecting the individual cutting elements well to the carrier body.
  • a solder has the advantage that only about 20% to 25% of the cutting element has to be embedded in the solder.
  • the distance between the individual cutting elements is preferably greater than when machining a hard surface, the limits being between 1 and 10 times the diameter of a cutting element.
  • the carrier body of the grinding tool can consist of steel, a metal alloy, ceramic or sintered metal.
  • the thickness of the carrier body expediently decreases symmetrically on both sides.
  • the area of the carrier body which decreases in thickness towards the outer circumference is particularly well suited for surface treatment. Due to the symmetrical design of both side surfaces of the carrier body, both side surfaces can be used for the same surface treatments.
  • At least the area of the carrier body that decreases in thickness advantageously has zones free of cutting elements.
  • Such cutting element-free zones serve for better removal of the abraded material and bring about a significant increase in the mining performance.
  • these cutting element-free zones allow the coolant to be distributed in the area of the side surfaces.
  • the zones free of cutting elements can partially extend from the center to the outer circumference of the carrier body. Through these zones free of cutting elements, the surfaces of the carrier body covered with cutting elements are subdivided into several smaller surfaces, which likewise extend at least partially from the center to the outer circumference of the grinding tool.
  • the zones free of cutting elements can have different widths.
  • the shape of these zones free of cutting elements can also be different. For example, they can be essentially radial, essentially swirl-shaped and essentially spiral-shaped, the swirl direction of the swirl and the spiral running in the opposite direction to the actual direction of rotation of the grinding tool. Such a twisting direction of the zone free of cutting elements causes a good removal of abraded material to be removed.
  • the zones of the carrier body free of cutting material are preferably formed as depressions in the carrier body.
  • the depressions enable coolant to be transported from the center to the outer periphery of the carrier body.
  • the depressions extend at least partially from the center to the outer circumference of the carrier body and cause the large side surface of the carrier body to be divided into a plurality of smaller surfaces, which at least partly also extend from the center to the outer circumference of the grinding tool.
  • These recesses can be of different widths, so that their width increases from the center to the outer circumference of the grinding tool. In this way, depressions with a circular cutout shape are formed.
  • Spiral recesses whose direction of twist is opposite to the actual direction of rotation of the grinding tool, form good discharge channels for the removed material.
  • Such depressions are particularly suitable in wet machining for the distribution of coolant, which is supplied to the grinding tool during the machining process, for example, through the drive spindle of an implement. Coolant thus gets from the center to the side surfaces of the grinding tool.
  • the carrier body is expediently recessed in the spacing zones lying between the cutting elements.
  • the carrier body has the before Cutting elements in the area in which cutting elements are applied have a nub-like surface.
  • the individual cutting elements of a grinding tool designed in this way are arranged on small, cylindrical or frustoconical knobs by means of a solder.
  • the diameter of the contact surface of these knobs, on which the individual cutting elements rest, is designed to be slightly larger than the largest diameter of the individual cutting elements.
  • a distribution of coolant is possible in the clearance zones if wet machining is carried out. Furthermore, these distance zones serve for better removal of the abraded material to the outer circumference of the grinding tool.
  • the cutting elements are expediently each formed by a diamond grain.
  • the arrangement of individual diamond grains spaced apart from one another achieves a high degree of degradation since the individual diamond grains penetrate deeper into the surface of a material to be machined.
  • the disk-shaped carrier body can also be covered with cutting elements, which are advantageously each formed by a group of two to eight individual diamond grains.
  • the arrangement of groups consisting of several diamond grains creates a larger grinding surface, which is particularly suitable for machining hard materials.
  • the groups penetrate less deeply into the surface of a material to be processed, which means that a surface with a lower surface roughness is created.
  • the distance between the individual cutting elements or groups can be of different sizes.
  • the cutting elements are expediently applied to the carrier body by means of a perforated mask in order to achieve the appropriate distribution of the individual cutting elements on the side surfaces or on the outer circumference of the grinding tool.
  • the carrier body is provided with an appropriate solder, the deformable perforated mask is held over it and sprinkled with cutting elements.
  • the cutting elements are arranged in a distributed manner via corresponding, spaced-apart through bores in the shadow mask and reach the solder layer, which connects the cutting elements to the carrier body.
  • the cutting elements are arranged in one layer on the outer circumference and in the adjoining region of the side surface close to the circumference.
  • the carrier body 1 and 2 show an annular support body 1, the side surfaces 3 are covered with individual cutting elements 4.
  • the carrier body 1 has a region 8 which decreases in thickness S towards the outer circumference 2 and a central through-bore 6 which serves to fasten the grinding tool to the drive shaft of a work tool, not shown.
  • the through bore 6 is designed such that parts of a receiving device with a frustoconical outer contour can be inserted into the through bore 6 from both side surfaces 3.
  • the side surfaces 3 of the carrier body are partially provided with solder 5, which is used to connect the individual cutting elements 4 to the carrier body 1.
  • the individual cutting elements 4 are arranged at a distance A from one another.
  • the grinding tool has zones 7 free of cutting elements, which serve for better removal of abraded material to be removed.
  • the 2 shows an enlarged section of the carrier body 1 viewed in cross section.
  • the section II-II through the carrier body 1 runs through a zone 7 free of cutting elements.
  • the individual cutting elements 4 are both on the outer circumference 2 and in the adjoining region of the side surface close to the circumference 3 arranged.
  • FIG. 3 and 4 show an annular support body 11, on the side surfaces 13 of which there are essentially radially extending, cutting element-free zones 17 in the form of depressions. If such depressions are arranged on both side surfaces 13, the depressions of both side surfaces 13 are arranged offset from one another, so that there is no weakening of the carrier body 11 in the region of the depressions.
  • the depressions can extend from the outer circumference 12 or from the region of the side surfaces 13 close to the circumference to the through bore 16.
  • the cutting elements 14 arranged on the carrier body 11 are individual diamond grains which are embedded in a solder 15 applied to the carrier body 11.
  • the arrangement of these cutting elements 14 on the carrier body 11 can be ordered or arbitrary. In both cases, however, care is taken that the individual cutting elements 14 are arranged at a certain distance A from one another.
  • the distance A can vary depending on the material of the surface to be machined. It is also possible to arrange more cutting elements 14 on the outer circumference 12 or in the adjoining circumferential area of the side faces 13 at a smaller distance A than in the area of the side faces 13 closer to the through hole 16.
  • zones 17 which are free of cutting elements and are designed in the form of depressions.
  • a through hole 16 which does not attach the grinding tool to the drive shaft shown working tool is used.
  • the carrier body 11 tapers symmetrically in the region of the borehole wall of the through hole 16.
  • a receiving device of a drive spindle designed to be complementary to the taper can be received in such a way that it does not protrude beyond a side face 13 of the carrier body 11.
  • the enlargement of the cross section of the carrier body 11 shown in FIG. 4 shows the region 18 of the carrier body 11 which decreases symmetrically to the outer circumference 12 in thickness S, the through bore 16 and the zone 17 free of cutting elements in the form of a depression which extends from the outer circumference 12 extends away over the adjoining, circumferential area of the side surface 13. It can also be seen from the drawing that the depressions arranged on the rear side of the carrier body 11 are not visible, since the depressions on one side surface 13 are offset from the depressions on the opposite side surface 13.
  • FIG 5 and 6 show an annular carrier body 21 which is covered with cutting elements 24 on the outer circumference 22 and in the adjoining region of the side surfaces 23 close to the circumference.
  • the cutting elements 24 are arranged at a distance A from one another on the carrier body 21.
  • the enlarged section of the carrier body 21 shown in cross section shows the region 28 of the carrier body 21 which decreases symmetrically in thickness S and the spacing zones 27 which are each located between the individual cutting elements 24.
  • the spacing zones 27 are also deepened, in such a way that the outer circumference 22 covered with cutting elements 24 and the adjoining region of the side surface 23 close to the circumference are provided with knobs.
  • the knobs 29 are essentially cylindrical, with an individual cutting element 24 being arranged on each knob 29 by means of solder 25.
  • the cutting element 24 can consist of a single cutter or a group of 2 to 8 diamond grains.
  • the diameter of the knobs 29 is designed to be slightly larger than the diameter of an individual cutting element 24.
  • the manufacture of such a carrier body 21 or the arrangement of the knobs 29 takes place according to a predetermined pattern.
  • a shadow mask not shown, with through holes, the Allow diameter only the passage of a single cutting element 24.
  • the through holes of the shadow mask form a pattern, which must be identical to the pattern formed by the knobs 29 of the carrier body 21.
  • a through hole 26 is arranged in the central region of the carrier body and serves to fix the grinding tool to a drive shaft of a work tool, not shown.
  • the carrier body 21 tapers symmetrically on both sides in the region of the borehole wall of the through hole 26.
  • the grinding tool shown in FIG. 7 consists of an annular carrier body 31 with a through hole 36 in the central area.
  • the carrier body 31 On the outer circumference 32 and in the adjoining region of the side surfaces 33 close to the circumference, the carrier body 31 is at least partially provided with solder 35, which is used to connect the cutting elements 34 to the carrier body 31.
  • the cutting elements 34 are arranged in the form of groups of two to eight individual diamond grains in one layer on the carrier body 31. Both on the outer circumference 32 and in the adjoining circumferential region of the side surfaces 33, the groups are arranged in such a way that they are spaced apart from one another by a distance.
  • the carrier body 31 has zones 37 free of cutting elements, which serve for better removal of abraded material to be removed. No solder 35 is arranged in these zones 37, which are free of cutting elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Disintegrating Or Milling (AREA)
  • Road Repair (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Vibration Dampers (AREA)
  • Road Paving Structures (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP93810799A 1992-12-18 1993-11-17 Scheibenförmiges Schleifwerkzeug Expired - Lifetime EP0605359B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4243017 1992-12-18
DE4243017A DE4243017A1 (de) 1992-12-18 1992-12-18 Scheibenförmiges Schleifwerkzeug

Publications (2)

Publication Number Publication Date
EP0605359A1 EP0605359A1 (de) 1994-07-06
EP0605359B1 true EP0605359B1 (de) 1997-01-15

Family

ID=6475803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810799A Expired - Lifetime EP0605359B1 (de) 1992-12-18 1993-11-17 Scheibenförmiges Schleifwerkzeug

Country Status (15)

Country Link
US (1) US5406929A (fi)
EP (1) EP0605359B1 (fi)
JP (1) JPH06210571A (fi)
KR (1) KR100287610B1 (fi)
CN (1) CN1042111C (fi)
AT (1) ATE147673T1 (fi)
AU (1) AU663634B2 (fi)
CA (1) CA2111800C (fi)
DE (2) DE4243017A1 (fi)
DK (1) DK0605359T3 (fi)
ES (1) ES2096264T3 (fi)
FI (1) FI935603A (fi)
HU (1) HU212295B (fi)
PL (1) PL172370B1 (fi)
TW (1) TW237409B (fi)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2741560B1 (fr) * 1995-11-23 1998-02-06 Briot Int Meule perfectionnee pour verres ophtalmiques, et machine de meulage correspondante
JPH10193269A (ja) * 1996-12-27 1998-07-28 Asahi Diamond Ind Co Ltd 電着工具及びその製造方法
US7124753B2 (en) * 1997-04-04 2006-10-24 Chien-Min Sung Brazed diamond tools and methods for making the same
US6019668A (en) * 1998-03-27 2000-02-01 Norton Company Method for grinding precision components
JP4269018B2 (ja) * 1998-10-09 2009-05-27 三京ダイヤモンド工業株式会社 ダイヤモンドカッターの製造方法及びダイヤモンドカッター
GB2362654A (en) * 2000-05-26 2001-11-28 Keteca Usa Inc Diamond saw blade
DE20109636U1 (de) * 2001-06-08 2002-03-28 DIEWE Diamantwerkzeuge GmbH, 86510 Ried Trennscheibe
EP1266724A1 (de) * 2001-06-12 2002-12-18 sia Abrasives Industries AG Schleifscheibe, Zwischenprodukt und Verfahren zum Herstellen einer solchen Schleifscheibe
US20040035281A1 (en) * 2002-06-27 2004-02-26 Ron Gaynor Electroplated diamond blade
TWI238753B (en) * 2002-12-19 2005-09-01 Miyanaga Kk Diamond disk for grinding
EP1944126A1 (en) * 2002-12-19 2008-07-16 Kabushiki Kaisha Miyanaga Diamond Disc
KR100625210B1 (ko) * 2005-05-17 2006-09-20 한국생산기술연구원 다이아몬드 융착 림 블레이드
JP2007061943A (ja) * 2005-08-30 2007-03-15 Asahi Diamond Industrial Co Ltd ろう付け工具
DE202005016385U1 (de) * 2005-10-19 2006-01-12 Heger Gmbh European Diamand Tools Trennschleifscheibe und Schleifsegment hierfür
US7178517B1 (en) * 2006-01-31 2007-02-20 Fang-Chun Yu Diamond saw blade for milling
DE102006010366B3 (de) * 2006-03-03 2007-10-04 Lukas-Erzett Vereinigte Schleif- und Fräswerkzeugfabriken GmbH & Co KG Schleiflamelle und diese enthaltende Schleifscheibe
FR2898070B1 (fr) * 2006-03-06 2009-01-09 Saint Gobain Abrasifs Tech Meule d'ebarbage fine, utilisation de cette meule, procede et dispositif pour la fabriquer
JP4657318B2 (ja) * 2008-04-30 2011-03-23 株式会社ノリタケスーパーアブレーシブ フライス工具
IT1395952B1 (it) * 2009-09-25 2012-11-02 Adi S P A Disco abrasivo per mola multi-disco, particolarmente per lavorazione di materiali lapidei ed affini e mola includente detto disco
IN2015DN00292A (fi) * 2012-06-29 2015-06-12 Saint Gobain Abrasives Inc
CN102896590B (zh) * 2012-09-21 2015-03-11 南京航空航天大学 钎焊超硬磨料船体打磨盘磨料排布工艺
CN102873645B (zh) * 2012-10-08 2016-06-01 上海磐锋超硬工具科技有限公司 一种切磨片
CN102873625A (zh) * 2012-11-01 2013-01-16 昆山市大金机械设备厂 抛光装置
US9969058B2 (en) * 2013-11-05 2018-05-15 United Technologies Corporation System and method for contoured peel grinding
CN104907947B (zh) * 2015-05-25 2017-08-29 江苏华昌工具制造有限公司 连接金属法兰的金刚石切磨片
CN111347307A (zh) * 2020-03-10 2020-06-30 广东博智林机器人有限公司 一种打磨刀盘及打磨机

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US47255A (en) * 1865-04-11 Improved saw
US1707162A (en) * 1927-03-22 1929-03-26 Nathan S Lewis Abrading device
US2020117A (en) * 1930-05-21 1935-11-05 Calibron Products Inc Cutting, grinding, and burnishing tool and the production thereof
US2073678A (en) * 1935-09-28 1937-03-16 Bell Telephone Labor Inc Cutting tool
DE1957848A1 (de) * 1969-11-18 1971-05-27 Theresia Tullius Mehrstufig und mehrbahnig zum Eingriff kommendes Schleif- und Polierwerkzeug zur Bearbeitung von Stein-,Betonbloecken u.dgl.
US4114322A (en) * 1977-08-02 1978-09-19 Harold Jack Greenspan Abrasive member
EP0129583A1 (en) * 1982-12-13 1985-01-02 Hale Engineering Inc. Cutting and abrading tools
JPS60242975A (ja) * 1984-05-14 1985-12-02 Kanebo Ltd 平面研磨装置
US5243811A (en) * 1986-04-28 1993-09-14 Kabushiki Kaisha Komatsu Seisakusho Grinder and method of manufacturing the same

Also Published As

Publication number Publication date
CA2111800A1 (en) 1994-06-19
AU663634B2 (en) 1995-10-12
DE59305148D1 (de) 1997-02-27
FI935603A (fi) 1994-06-19
DK0605359T3 (da) 1997-07-21
CN1042111C (zh) 1999-02-17
EP0605359A1 (de) 1994-07-06
PL301516A1 (en) 1994-06-27
ES2096264T3 (es) 1997-03-01
CA2111800C (en) 2001-10-30
FI935603A0 (fi) 1993-12-14
CN1091350A (zh) 1994-08-31
US5406929A (en) 1995-04-18
KR940013733A (ko) 1994-07-15
DE4243017A1 (de) 1994-06-23
JPH06210571A (ja) 1994-08-02
TW237409B (fi) 1995-01-01
HU9303649D0 (en) 1994-04-28
AU5258393A (en) 1994-06-30
PL172370B1 (pl) 1997-09-30
HU212295B (en) 1996-05-28
HUT65636A (en) 1994-07-28
KR100287610B1 (ko) 2001-04-16
ATE147673T1 (de) 1997-02-15

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