EP1747851A2 - Outil de meulage - Google Patents

Outil de meulage Download PDF

Info

Publication number
EP1747851A2
EP1747851A2 EP06124027A EP06124027A EP1747851A2 EP 1747851 A2 EP1747851 A2 EP 1747851A2 EP 06124027 A EP06124027 A EP 06124027A EP 06124027 A EP06124027 A EP 06124027A EP 1747851 A2 EP1747851 A2 EP 1747851A2
Authority
EP
European Patent Office
Prior art keywords
disc
grinding tool
abrasive
layer
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.)
Withdrawn
Application number
EP06124027A
Other languages
German (de)
English (en)
Other versions
EP1747851A3 (fr
Inventor
Gerd Braasch
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.)
Sia Abrasives Industries AG
Original Assignee
Sia Abrasives Industries 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 Sia Abrasives Industries AG filed Critical Sia Abrasives Industries AG
Publication of EP1747851A2 publication Critical patent/EP1747851A2/fr
Publication of EP1747851A3 publication Critical patent/EP1747851A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • B24D7/16—Bushings; Mountings
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/08—Circular back-plates for carrying flexible material
    • B24D9/085—Devices for mounting sheets on a backing plate

Definitions

  • the invention relates to a rotating machine grinding tool, comprising a disc-like support body which can be attached to a machine drive by means of approximately located in the region of the center of rotation connecting elements and which has at least one equipped with abrasive working side.
  • the equipped with padded abrasive working sides can still depending on the grinding pressure on Adjust the shape variations of the workpieces.
  • such an adaptation is set by the elasticity of the padding layer used as well as the elasticity of the material used for the carrier body or the area of its working side.
  • the elasticity of the padding layer used is set by the elasticity of the padding layer used as well as the elasticity of the material used for the carrier body or the area of its working side.
  • Such areas can only be sanded manually with appropriate abrasive material, such as abrasive cloth, sandpaper or the like in a labor-intensive manner.
  • the invention has for its object to provide an easy-to-use, versatile grinding tool that can be used with appropriate machines even when it comes to grind difficult shapes even in difficult places.
  • the abrasive has the shape of a radially standing to the axis of rotation sheet-like disk, the periphery of which protrudes freely over the outer edge of the working side of the support body by a predetermined amount.
  • Upon rotation of the carrier body can be ground with the radial axis of rotation to the blade-like disk by his the working side of the support body averted, abrasive sheet side similar to a Sanding pad is guided over the workpiece surface to be ground.
  • the guide can be done freely by a corresponding machine drive is performed by hand.
  • the present in the form of a relatively thin and consequently sheet-like disc abrasive is stretched by the centrifugal forces occurring during rotation and thereby stiffened. Nevertheless, the region of the abrasive material projecting freely beyond the outer edge of the working side of the carrier body remains yielding or flexible against forces acting transversely to the rotation plane. The region may yield protrusions of the workpiece during rotation without losing the abrasive pressure required to abrade this projection of the workpiece or increasing it to an undesirable magnitude.
  • the grinding tool according to the invention has no fixed support flange for the actual abrasive coating, which is located on the surface of the sheet-like disc.
  • This has the advantage that with such, highly flexible abrasive coating of the grinding tool three-dimensional shapes, levels and shape transitions can be ground as easily as it was previously possible only by so-called free-hand grinding, in which an abrasive, for example, a laid around a block of sandpaper , by hand, so manually, both moving and guided.
  • the machine grinding tool according to the invention operates correspondingly variable, such as free-hand grinding, but with significantly better grinding performance and grinding results. It grinds in all areas of deformed planes as well as in areas of shape transitions or component transitions with always the same pressure, wherein It can be seen as a particular advantage that the optimum pressure results in a soft grinding.
  • the supporting elements here the carrier body with its connecting elements
  • the sheet-like disc consists of at least two adjacent disc layers.
  • a first disc layer is an elastic cushion layer
  • a second disc layer is a highly flexible abrasive cloth. Both layers are of the appropriate materials punched circular rings, which are set by suitable connection measures, such as bonding together.
  • the outer diameter of the second layer of highly flexible abrasive cloths is sized to project freely beyond the outer edge of the first ply, the elastic cushion ply, by a predetermined amount.
  • This embodiment has the advantage that in the rotation center adjacent, inner regions of the grinding tool, in which the centrifugal forces can not yet have such a stiffening effect, as is the case on the periphery, is supported by the elastic cushion layer with. Their elasticity leads to a soft grinding even in these areas, although they are approximated to the axis of rotation.
  • the predetermined extent of the projection of the outer edge of the second disc layer over the outer edge of the first disc layer present as padding layer is at least equal to the thickness of the padding layer.
  • the supernatant in a preferred embodiment is 5 mm and thus larger than the thickness of the padding layer.
  • the carrier body is formed according to an advantageous development as a disc ring which is so thin that it can elastically spring in the region of its periphery transversely to the disc ring plane, the disc ring in the disc ring center has a projection for the connecting element.
  • the shape and design is such that the approach of the carrier body is formed as a sleeve, wherein the disc ring corresponds to a projecting approximately radially from the sleeve collar flange.
  • the abrasive is connected to the carrier body such that it can be stuck with its padding on the thin and thus elastic collar flange.
  • the carrier body is preferably a one-piece molded part of glass fiber reinforced polyamide, this material is high strength due to the glass fiber reinforcement and thereby has sufficient elasticity due to its dimensions, since the thickness of the collar flange is approximately equal to one twentieth of its width. It is also advantageous that this material is soluble with certain solvents, so that the abrasive is readily glued to the loosened surface. Additional glue is not needed.
  • the coated with the abrasive carrier body is a low-cost disposable part that can be easily replaced after wear of the abrasive.
  • Carrier body made of glass fiber reinforced polyamide can be produced by injection molding as a mass-produced article.
  • the abrasives can also be mass-produced on an industrial scale. The usual in contour grinding work incorporating certain profiles of grinding workpieces in negative form in the working pages of grinding tools is eliminated in the inventive grinding tool.
  • the present as a sheet-like disc abrasive has in the center of a hole whose diameter is approximately equal to, but not smaller than the outer diameter of the sleeve of the carrier body.
  • the abrasive can be plugged with the hole on the sleeve of the support body, wherein it is, with its padded position on the collar flange, bonded thereto.
  • the outer diameter of the elastic padding layer of the abrasive disc is approximately equal to three times the width of the collar flange of the carrier body.
  • the thickness of the elastic padding layer corresponds to about three times the thickness of the collar flange. For example, with an outer diameter of the collar flange of about 70 mm and a width of about 10 mm, the collar flange is about 1 mm thick.
  • the collar flange is a highly elastic resilient member which supports the abrasive in the center, wherein the support to the outer diameter of the collar flange, and thus at the radial distance from the center of rotation is gradually softening gradually, resulting in Achieving optimal grinding results with the grinding tool according to the invention is also desirable.
  • the grinding tool according to the invention makes it possible to grind in sharp-edged corners.
  • the elasticity of its abrasive avoids the formation of flat grinding contours on curved workpieces by excessive contact pressure. Transitions from surfaces to workpieces are ground by snuggling to all levels in the transition area, even at the same time.
  • the abrasive tool according to the invention with the relatively soft abrasive prevents unwanted heat build-up, for example when grinding workpieces made of stainless steel, which could otherwise discolor undesirable due to frictional heat (tarnish colors).
  • Fig. 1 shows a particularly advantageous embodiment possibility for connecting a grinding tool with a machine drive.
  • a lower extension 25 of an inner bore 17 is provided in a clamping ring 14 into which a conventional spring ring 26 is inserted.
  • a clamping cover 21 has in his Scope cut grooves 27 and 27 ', which are congruent with drivers 9 of the support body 1 at a corresponding rotational position of the clamping cover 21, so that this support body can be pulled down without removing the clamping cover 21.
  • a new grinding tool consisting of a carrier body 1 equipped with abrasive, can be pushed from below.
  • the spring washer 26 presses the clamping cover 21 from the clamping ring 14 and thereby a manual rotation of the clamping cover 21 readily possible to bring it into a congruent with the drivers 9 position. In this position, the driver 9, the grooves 27 and 27 'in the clamping cover 21 pass.
  • the spring washer 26 causes a co-rotation of the clamping cover 21 due to the friction between the countersunk head of the countersunk screw 24 and the clamping cover 21, the grooves 27 and 27 'located on the circumference of the clamping cover 21. to get out of their congruent position.
  • the grinding tool consisting of the equipped with abrasive carrier body 1, is securely fastened again.
  • the carrier body 1 can be seen in a side view. In the peripheral region of the carrier body 1 abrasive 2 is arranged.
  • the carrier body 1 consists of a disc 3 which is so thin, for example 1 mm, that it can elastically spring transversely to the disc plane. In the region of the center of the carrier body is as an approach for fasteners about 7 mm short sleeve 4. Die Disk 3 corresponds to an approximately radially projecting from the sleeve 4 collar flange.
  • the abrasive 2 is a flat structure. It comprises a first disk layer 5, here an elastic cushion layer. Furthermore, a second disc layer is provided, which is designated by 6 and which also consists of a highly flexible abrasive cloth.
  • the first layer 5, the cushion layer may be foam rubber or plastic foam and has a thickness of about 3 mm.
  • the supporting elements for the abrasive the support body 1, in particular his present as a collar flange on the sleeve disc 3, in diameter much smaller than the actual abrasive. 2
  • Fig. 1 illustrates that the outer diameter of the second disc layer 6, which is present as a highly flexible abrasive cloth, is dimensioned such that it projects freely beyond the outer edge 8 of the present as a cushion layer first layer 5 by a predetermined amount. This supernatant is designated 7.
  • Fig. 2 shows a view of the grinding tool from above.
  • Fig. 3 shows the grinding tool from below, so in a view of the grinding surface, which is brought into abutment with workpieces to be ground.
  • Figs. 2 and 3 illustrate that the abrasive 2 has a ring shape and from the corresponding Material layers stamped or cut parts is composed.
  • the sleeve 4 with the drivers 9 and 9 ' is visible in plan view, as well as the present as a disc 3 actual support body 1, wherein the disc 3 is arranged as a collar flange on the sleeve 4.
  • the first layer 5, the cushion layer is an annular disc, which, as illustrated in FIG. 1, is adhesively bonded to the disc 3 of the carrier body present as a collar flange.
  • the second layer 6, the highly elastic abrasive cloth, is also an annular disc, which is glued to the first layer 5, the cushion layer.
  • the diameter of the second layer 6 is dimensioned so that over the outer edge 8 of the cushion layer (first layer 5) protruding free projection 7 results, the surface of which is visible in Fig. 2.
  • Fig. 3 shows the grinding side of the grinding tool, in which only the outer grinding working surface of the highly elastic grinding cloth (second disk layer 6) is visible, as well as the sleeve 4 and the two drivers 9, 9 '.
  • the grinding tool is a prefabricated and ready for grinding in any variations and dimensions unitary part which, when the highly elastic abrasive cloth is consumed, as a complete, consisting of carrier body 1 and disposed thereon abrasive 2, existing unit can be replaced.
  • a machine drive which usually has a clamping device, the clamping pin 18 shown in Fig. 1 is received. During the entire grinding work, the clamping pin 18 can remain in the machine drive.
  • the clamping ring 14 is equipped with an inner bore 17, the insertion of the Clamping pin 18 allows.
  • a clamping cover 21 attached which is disc-shaped and, for example, a stamped part can be made of sheet metal.
  • the outer diameter of the clamping cover 21 is about the same, but not greater than the inner diameter of the sleeve 4 of the support body 1.
  • clamping cover 21 on shoulders 23 on the underside of the opposite of the length of the sleeve 4th shortened driver 9 and 9 'rest.
  • the clamping cover 21 is thus added sunk in the sleeve as soon as it is fixed with the countersunk screw 24 on the journal 19 of the pin 18 and as soon as all the components, under embklemmung the grinding tool, assembled and contracted.
  • abrasive tools which are present as a complete unit of carrier body and abrasive, can be made quickly and easily after loosening the clamping cover 21 and twisting the clamping cover, as described above, wherein the clamping pin 18 in the chuck, for example, an electric, hand-held machine, can remain clamped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
EP06124027A 2000-07-22 2001-07-12 Outil de meulage Withdrawn EP1747851A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20012746U DE20012746U1 (de) 2000-07-22 2000-07-22 Schleifwerkzeug
EP01116979A EP1174219B1 (fr) 2000-07-22 2001-07-12 Outil de meulage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01116979A Division EP1174219B1 (fr) 2000-07-22 2001-07-12 Outil de meulage

Publications (2)

Publication Number Publication Date
EP1747851A2 true EP1747851A2 (fr) 2007-01-31
EP1747851A3 EP1747851A3 (fr) 2007-02-21

Family

ID=7944307

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01116979A Expired - Lifetime EP1174219B1 (fr) 2000-07-22 2001-07-12 Outil de meulage
EP06124027A Withdrawn EP1747851A3 (fr) 2000-07-22 2001-07-12 Outil de meulage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01116979A Expired - Lifetime EP1174219B1 (fr) 2000-07-22 2001-07-12 Outil de meulage

Country Status (4)

Country Link
US (1) US6551180B2 (fr)
EP (2) EP1174219B1 (fr)
AT (1) ATE345193T1 (fr)
DE (2) DE20012746U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023104054A1 (de) 2023-02-17 2024-08-22 Thomas Grüneberg Polierwerkzeug

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2460908A1 (fr) * 2001-09-19 2003-05-01 Joseph H. Mackay Dispositif de montage pour meules abrasives
DE10222292A1 (de) 2002-05-18 2003-12-04 Bosch Gmbh Robert System mit einer Werkzeugaufnahme
WO2004062846A2 (fr) * 2003-01-06 2004-07-29 Mackay Joseph H Arbres et dispositifs de fixation pour permettre deux formes de montage de disques abrasifs a changement simple/rapide
DE10305189A1 (de) * 2003-02-08 2004-02-26 Daimlerchrysler Ag Schleifteller mit Schleifscheibe für eine Rotationsschleifmaschine
CN101890671B (zh) * 2009-02-17 2014-05-28 C.&E.泛音有限公司 用于振动驱动装置的磨削或磨光的工具
WO2014176202A1 (fr) 2013-04-25 2014-10-30 Saint-Gobain Abrasives, Inc. Outil de meulage et de polissage
EP3983174A1 (fr) * 2019-06-12 2022-04-20 August Rüggeberg GmbH & Co. KG Abrasif pour fabriquer un outil de rectification ainsi qu'outil de rectification et procédé pour faire fonctionner un outil de rectification de ce type
CN112518385B (zh) * 2020-12-29 2022-03-11 安徽圣尔沃智能装备有限公司 一种智能调节式压铸件切削装置
CN113580002A (zh) * 2021-08-02 2021-11-02 浙江诺研新材料有限公司 一种用于连接砂纸和转矩砂碟托盘的磨盘

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480886A (en) * 1947-03-03 1949-09-06 Budd Co Abrasive disk support
US3540160A (en) * 1967-01-31 1970-11-17 Antonio De Rose Surface finishing device
US3742656A (en) * 1967-12-18 1973-07-03 R Amos Coupling devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US252928A (en) * 1882-01-31 Machine for shaving and whitening leather
US3191351A (en) * 1963-04-29 1965-06-29 Louis A Balz Ice drill sharpener
US3883998A (en) * 1974-02-11 1975-05-20 Minnesota Mining & Mfg Fastening device for psa abrasive disc
DE8716114U1 (de) 1987-12-05 1988-01-28 Dzierzon, Jochen C., 2800 Bremen Schleifscheibe
DE4020461C1 (en) 1990-06-27 1991-07-18 Gerd Eisenblaetter Gmbh, 8192 Geretsried, De Face grinding disc tool - has replaceable grinding disc with backing disc having plastics rods
US5390449A (en) * 1993-12-06 1995-02-21 Hilton; Harry Rotary sanding apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480886A (en) * 1947-03-03 1949-09-06 Budd Co Abrasive disk support
US3540160A (en) * 1967-01-31 1970-11-17 Antonio De Rose Surface finishing device
US3742656A (en) * 1967-12-18 1973-07-03 R Amos Coupling devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023104054A1 (de) 2023-02-17 2024-08-22 Thomas Grüneberg Polierwerkzeug

Also Published As

Publication number Publication date
EP1174219B1 (fr) 2006-11-15
DE20012746U1 (de) 2000-09-28
DE50111439D1 (de) 2006-12-28
EP1174219A2 (fr) 2002-01-23
EP1174219A3 (fr) 2004-01-02
EP1747851A3 (fr) 2007-02-21
US6551180B2 (en) 2003-04-22
ATE345193T1 (de) 2006-12-15
US20020009965A1 (en) 2002-01-24

Similar Documents

Publication Publication Date Title
EP1318892B1 (fr) CORPS ABRASIF ET MOYEN ABRASIF POUR UN OUTIL DE PONçAGE ELECTRIQUE, ET OUTIL DE PONçAGE ELECTRIQUE
EP1174219B1 (fr) Outil de meulage
DE20023967U1 (de) Elektrohandschleifmaschine, insbesondere Exzenterschleifer
DE2604233A1 (de) Schleif- oder poliermaschine mit absaugung
CH359376A (de) Schleifvorrichtung, Verwendung der Schleifvorrichtung und Verfahren zu ihrer Herstellung
DE202012101515U1 (de) Schleifmittel und Schleifwerkzeug
DE3413598A1 (de) Verfahren zur herstellung einer profilschleifscheibe
EP1859903B1 (fr) Outil rotatif pour le traitement de surface
DE10357144A1 (de) Schleifteller für eine Handschleifmaschine
DE2740891C3 (de) Umfangsschleifscheibe
DE19920651B4 (de) Rotierendes Maschinen-Schleifwerkzeug
EP1068048B1 (fr) Outil abrasif a lamelles
EP1291134A1 (fr) Plateau de polissage
WO2007026007A1 (fr) Dispositif pour separer et polir, dispositif de serrage et outil a amortissement de vibrations
DE69007467T2 (de) Doppelseitige Schleifscheibe mit interner Verstärkung.
DE29510727U1 (de) Werkzeug, insbesondere Schleif- oder Polierteller
DE10003504C2 (de) Handschleifgerät
DE3030942A1 (de) Schleifschuh, insbesondere fuer handschleifgeraete
DE4007006A1 (de) Montage- und abnahmekopf einer reifenwechselvorrichtung
DE3914259A1 (de) Arbeitsscheibe fuer werkzeugblaetter
DE3342841A1 (de) Schleifwerkzeug
DE10230308A1 (de) Einsatzwerkzeug mit einem Stützteller
EP0900631B1 (fr) Outil abrasif
DE1502455A1 (de) Trennschneidscheibenanordnung und Verfahren zur Herstellung derselben
DE20213084U1 (de) Schleifteller für Handschleifmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AC Divisional application: reference to earlier application

Ref document number: 1174219

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17P Request for examination filed

Effective date: 20070417

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20100202