EP0526845A2 - Procédé de meulage de matière plastique ou de verre - Google Patents

Procédé de meulage de matière plastique ou de verre Download PDF

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Publication number
EP0526845A2
EP0526845A2 EP19920113054 EP92113054A EP0526845A2 EP 0526845 A2 EP0526845 A2 EP 0526845A2 EP 19920113054 EP19920113054 EP 19920113054 EP 92113054 A EP92113054 A EP 92113054A EP 0526845 A2 EP0526845 A2 EP 0526845A2
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding tool
abrasive
glass
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
EP19920113054
Other languages
German (de)
English (en)
Other versions
EP0526845B1 (fr
EP0526845A3 (fr
Inventor
Boris E Rudolf
Horst Moissl
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.)
C&E Fein GmbH and Co
Original Assignee
C&E Fein GmbH and Co
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 C&E Fein GmbH and Co filed Critical C&E Fein GmbH and Co
Publication of EP0526845A2 publication Critical patent/EP0526845A2/fr
Publication of EP0526845A3 publication Critical patent/EP0526845A3/fr
Application granted granted Critical
Publication of EP0526845B1 publication Critical patent/EP0526845B1/fr
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
    • B24D99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B24B7/241—Methods
    • 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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/30—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding plastics

Definitions

  • the invention relates to a method for grinding plastic or glass, in particular for grinding acrylic glass, in which a machine-driven grinding tool is moved over a processing surface.
  • a polishing paste is applied to the surface to be processed, which is in a liquid working medium, e.g. Water is used for the machining process with the help of a mechanically driven polishing disc.
  • a liquid working medium e.g. Water
  • US Pat. No. 3,230,672 has made known an abrasive material which enables a fine machining of surfaces without the use of polishing pastes.
  • grinding wheels are resiliently embedded on a carrier material.
  • the grinding wheels have largely flat front surfaces which are delimited by side surfaces with relatively sharp edges.
  • a special manufacturing process ensures that the major part of the front surfaces is oriented approximately parallel to the processing surface. In this way, the grinding or polishing process mainly takes place over the sharp-edged edges of the front surfaces, which results in a better surface quality, since there are no sharp-edged grinding bodies projecting in the direction of the machining surface.
  • the parallel alignment of the front surfaces of the grinding bodies to the machining surface is favored by the flexible embedding on the carrier material.
  • the invention is therefore based on the object of providing a method for grinding or polishing plastic or glass which avoids the disadvantages of the wet grinding method and at the same time ensures a high surface quality.
  • this object is achieved in that a machine-driven grinding tool is moved over a processing surface, that the grinding is carried out dry without a liquid working medium, that the grinding tool executes a circular or oscillating movement at a high frequency with a high frequency, with grinding dust being suctioned off at the edge , and that the grinding tool has a closed abrasive with resiliently embedded grinding bodies.
  • the method according to the invention enables fine machining of plastic or glass surfaces with optical quality using the dry grinding method.
  • the grinding tool executes a circular or oscillating movement at a high frequency about a fixed pivot axis. This avoids a preferred direction during machining in the case of orbital sanders and enables uniform machining.
  • the extraction of grinding dust during processing takes place according to the invention at the edges of the grinding tool.
  • the effective extraction also cools the grinding surface, which is particularly important when processing acrylic glass because of its temperature sensitivity.
  • the method according to the invention now enables considerably faster and cost-saving dry-grinding post-processing with high quality, it being possible to compensate for errors of up to an order of magnitude of more than 1 mm.
  • the resiliently embedded grinding bodies have a largely flat front surface which is delimited by side surfaces with relatively sharp edges, the majority of the front surfaces being oriented approximately parallel to the machining surface.
  • the grinding speed i.e. the average speed of the grinding wheel, selected in the range of about 2 to 10 m per second and the contact pressure limited so that a surface temperature of about 50 ° C is not exceeded. This offers sufficient security to avoid the triggering of voltages or against stress cracking.
  • Eccentric grinders are particularly suitable for the extensive processing of acrylic glass surfaces, which are driven in a rotating movement with approximately 2000 to 10000 1 / min, preferably with approximately 4000 to 8000 1 / min and which have the necessary suction at the edge for grinding dust up to 1.5 mm.
  • grinding tools which have an abrasive carrier with at least one corner region, one around a device-fixed one, are preferably used for machining the corners and edge regions which are difficult to access Swiveling axis performs oscillating movement with a frequency of about 10,000 to 25,000 1 / min.
  • effective removal of the grinding dust must be ensured by means of an appropriate edge suction.
  • a triangular design of the abrasive carrier has proven to be particularly useful for handling.
  • the abrasive projects beyond the edge of the abrasive carrier.
  • the abrasive protrudes slightly upwards at the edges of the abrasive carrier, so that detachment from the carrier is avoided and work can also be carried out with the edge region of the grinding tool without the machining surface being damaged by sharp edges.
  • FIG. 1 shows a cockpit, designated overall by the number 46, which is covered by a hood-shaped acrylic glass pane 48.
  • the edge and corner areas are indicated by the number 50, while the processing surface, which can be inside or outside, is indicated by the number 44.
  • FIG. 2 shows the structure of an abrasive which is preferably used in the method according to the invention.
  • abrasive bodies 54 with a resilient binding material such as e.g. Latex, embedded.
  • the grinding wheels 54 have largely flat front surfaces 58, which are delimited by side surfaces 60 with relatively sharp edges, the majority of the front surfaces 58 being oriented approximately parallel to the machining surface 44.
  • the latex layer 56 has sufficient compliance to aid in parallel alignment of the front surfaces 58 during the grinding process.
  • FIG. 3 shows a partial section through the lower area of a grinding device with an attached suction hood, which is particularly suitable for processing the corner and edge areas 50 of the acrylic glass pane 48.
  • the grinding device designated as a whole by the number 10, has a drive housing 30 in which a pivot shaft 24 for oscillating drive of a grinding tool 12 is arranged around a pivot axis 14 which is fixed to the device. At the free end of the pivot shaft 24, the grinding tool, designated as a whole by the number 12, is fastened.
  • the grinding tool 12 has a triangular abrasive carrier 13 to which an abrasive 16 according to FIG. 2 is attached.
  • the grinding tool 12 is enclosed by a suction hood, which is designated overall by the number 20.
  • the suction hood 20 has a central receptacle 26, which is slightly tapered on the outside and continues inside the suction hood 20 with a cylindrical extension 38 to the grinding tool 12.
  • the receiving connector 26 is placed on the flange-shaped end of the drive housing 30.
  • the suction hood 20 is adapted in its outer shape to the triangular shape of the grinding tool 12.
  • the suction hood 20 has three side surfaces 27, which are arranged symmetrically to the receiving connector 26 and are slightly convex on the outside, which cover the grinding tool 12 on its side surfaces 34 from the outside and are set back with their end faces 25 by a small distance from the grinding surface, so that a gap is formed between the machining surface 44 over which the grinding tool 12 is guided and the end surfaces 25 (FIG. 4). In this way, contact of the end faces 25 with the processing surface 44 is avoided without the suction effect being impaired.
  • the abrasive 16 protrudes somewhat over the edge of the abrasive carrier 13, preferably by an amount of 1-2 mm. As a result, the abrasive 16 protrudes somewhat upwards with its edges, so that no sharp edges can arise through the side surfaces 34 of the abrasive carrier.
  • the suction hood 20 has a suction chamber 28, which extends from a suction port 22 that opens laterally between two corners of the suction hood 20 to the opposite corner.
  • the cross section of the suction chamber 28 is tapered from the suction nozzle 22 to the opposite corner.
  • an improved suction effect is achieved in particular in the corner area opposite the suction nozzle 22, which has a particularly advantageous effect due to the increased amount of sanding dust when the device is used more intensively in the corner area in order to avoid scratches and scoring.
  • a plug part 21, which is connected to a suction device, not shown, is inserted into the suction nozzle 22.
  • the grinder acc. FIG. 3 is particularly suitable for processing the corner areas 52 and the edge areas 50 of the acrylic glass pane 48.
  • Fig. 1 suitable.
  • the oscillation frequency is set approximately in a range between 10,000 to 25,000 1 / min, the swivel angle being up to a maximum of approximately 7 °. This results in an average grinding wheel speed of approximately 2 to 10 m per second.
  • the contact pressure on the processing surface 44 is limited so that an average surface temperature of about 50 ° C is not exceeded during dry processing.
  • the other areas of the acrylic glass pane 48 are preferably ground in the cross-grinding method with an eccentric grinder according to FIG. 5, which performs a circular movement and is driven at a frequency of approximately 2000 to 10000 1 / min, preferably approximately 4000 to 8000 1 / min.
  • the eccentric stroke is approximately 1 - 1.5 mm.
  • the contact pressure during dry machining is limited so that an average surface temperature of around 50 ° C is not exceeded. This provides sufficient security against the risk of triggering tension or tension cracking in the machining area.
  • the eccentric sander designated overall by the number 10 ', has a grinding tool 12' which has an abrasive carrier 13 'with a circular base for receiving an abrasive 16' according to FIG. 2.
  • the abrasive carrier 13 ' is rigidly connected to a central threaded pin 66 via an intermediate flange 72.
  • the threaded pin 66 is connected to the drive shaft of an eccentric drive, not shown.
  • an end collar 70 is molded onto the threaded pin 66 and is cast with a central receptacle 68 of the intermediate flange 72 in order to ensure a rigid, rotationally fixed connection.
  • Other connection options are also conceivable.
  • the end face 25 'of the suction hood 20' facing the machining surface is set back in a manner corresponding to the embodiment according to FIG. 3 by a small amount compared to the machining surface.
  • the suction hood 20 ' is screwed to the abrasive carrier 13' via the intermediate flange 72, as can be seen in the left half of FIG. 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP92113054A 1991-08-03 1992-07-31 Procédé de meulage de matière plastique ou de verre Expired - Lifetime EP0526845B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4125795 1991-08-03
DE4125795A DE4125795C1 (fr) 1991-08-03 1991-08-03

Publications (3)

Publication Number Publication Date
EP0526845A2 true EP0526845A2 (fr) 1993-02-10
EP0526845A3 EP0526845A3 (fr) 1993-04-14
EP0526845B1 EP0526845B1 (fr) 1994-09-28

Family

ID=6437661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113054A Expired - Lifetime EP0526845B1 (fr) 1991-08-03 1992-07-31 Procédé de meulage de matière plastique ou de verre

Country Status (7)

Country Link
US (1) US5292352A (fr)
EP (1) EP0526845B1 (fr)
JP (1) JPH0615559A (fr)
AT (1) ATE112203T1 (fr)
CA (1) CA2075081A1 (fr)
DE (2) DE4125795C1 (fr)
ES (1) ES2063556T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103894327A (zh) * 2014-04-24 2014-07-02 华晨汽车集团控股有限公司 一种涂装打磨工具

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663284U (ja) * 1993-02-05 1994-09-06 リョービ株式会社 動力工具の駆動部構造
US5632579A (en) * 1994-07-13 1997-05-27 Thermwood Corporation Particulate removal device and system for router machines and the like
JPH09267251A (ja) * 1996-04-02 1997-10-14 S P Air Kk 研磨装置
US6027399A (en) * 1998-02-27 2000-02-22 Stewart; Kerry Clean grinding system
AU3270800A (en) * 1999-04-29 2000-11-17 Zdenek Vetrovsky Glass grinding segment
US6158528A (en) * 2000-01-27 2000-12-12 S.P. Air Kabusiki Kaisha Hand-held pneumatic rotary drive device
US7404450B2 (en) 2000-01-27 2008-07-29 S.P. Air Kabusiki Kaisha Pneumatic rotary tool
US6443239B1 (en) 2000-02-29 2002-09-03 S.P. Air Kabusiki Kaisha Pneumatic rotary tool
JP3746482B2 (ja) * 2000-09-08 2006-02-15 エス・ピー・エアー株式会社 空気式ロータリツール
AUPR135000A0 (en) * 2000-11-09 2000-11-30 Whitbury Corporation Pty Ltd Sander
DE10126675A1 (de) * 2001-06-01 2002-12-05 Bosch Gmbh Robert Elektrohandschleifmaschine, insbesondere Exzenterschleifer
DE10162630A1 (de) * 2001-12-20 2003-07-10 Hilti Ag Schleifgerät mit einer Absaughaube
DE20314703U1 (de) * 2003-09-19 2005-01-27 Otto Martin Maschinenbau Gmbh & Co Polieraggregat zum Polieren von Werkstücken
WO2005053905A1 (fr) * 2003-11-28 2005-06-16 Comercial Trasluz Imagen E Iluminacion, S.L. Systeme de gravure de la surface d'un conducteur optique plat
US20080233845A1 (en) * 2007-03-21 2008-09-25 3M Innovative Properties Company Abrasive articles, rotationally reciprocating tools, and methods
RU2009134876A (ru) * 2007-03-21 2011-04-27 3М Инновейтив Пропертиз Компани (3M Innovative Properties Company) (US) Способы устранения дефектов поверхностей
USD610430S1 (en) 2009-06-18 2010-02-23 3M Innovative Properties Company Stem for a power tool attachment
USD619152S1 (en) 2009-12-18 2010-07-06 Techtronic Power Tools Technology Limited Adapter
USD623034S1 (en) 2009-12-18 2010-09-07 Techtronic Power Tools Technology Limited Tool arbor
USD646542S1 (en) 2010-09-29 2011-10-11 Milwaukee Electric Tool Corporation Accessory interface for a tool
USD651062S1 (en) 2010-09-29 2011-12-27 Milwaukee Electric Tool Corporation Tool interface for an accessory
USD653523S1 (en) 2010-09-29 2012-02-07 Milwaukee Electric Tool Corporation Adapter for a tool
US9555554B2 (en) 2013-05-06 2017-01-31 Milwaukee Electric Tool Corporation Oscillating multi-tool system
CN108890408B (zh) * 2018-09-27 2019-04-05 吉林大学 一种超声辅助研磨抛光碳化硅晶片的装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230672A (en) * 1963-05-28 1966-01-25 Frederick B Anthon Dressing appliance
DE7040819U (de) * 1971-02-18 Mafell Maschinenfab R Mey Schleifer, insbesondere Vibrationsschlei fer mit Staubabsauglufter
DE3405095A1 (de) * 1984-02-14 1985-08-29 Kurt 3050 Wunstorf Wagner Verfahren und vorrichtung zum beseitigen von oberflaechenschaeden an ebenen glasflaechen
DE8618750U1 (de) * 1986-07-12 1986-09-04 C. & E. Fein Gmbh & Co, 7000 Stuttgart Handschleifgerät

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE483189C (de) * 1929-09-27 Demag Akt Ges Glasplattenpoliermaschine
US2828587A (en) * 1956-09-17 1958-04-01 Robert P Miller Abrasive disc machine for resurfacing slate, wood, metal, plastics, or the like
US3447267A (en) * 1967-02-13 1969-06-03 Swedlow Inc Grinding apparatus and method
DE1994278U (de) * 1968-05-07 1968-09-19 Richard Staehle K G Maschb Tandem-, band- und tellerschleifmaschine fuer beidseitiges vor- und fertigschleifen, insbesondere zum schleifen von fensterfluegeln, rahmen, bekleidungen und tueren aus holz, leichtmetall und kunststoffen.
DE2938704C2 (de) * 1979-09-25 1984-03-15 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Exzentertellerschleifer
DE3664740D1 (en) * 1985-11-15 1989-09-07 Fein C & E Portable grinder
DE3724747A1 (de) * 1987-07-25 1989-02-02 Fein C & E Schleifgeraet mit staubabsaugeinrichtung
JP2657655B2 (ja) * 1988-01-18 1997-09-24 八千代マイクロサイエンス株式会社 航空機窓研磨装置
DE3935179A1 (de) * 1989-10-23 1991-04-25 Werkzeug Gmbh Vorsatzgeraet fuer einen winkelschleifer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7040819U (de) * 1971-02-18 Mafell Maschinenfab R Mey Schleifer, insbesondere Vibrationsschlei fer mit Staubabsauglufter
US3230672A (en) * 1963-05-28 1966-01-25 Frederick B Anthon Dressing appliance
DE3405095A1 (de) * 1984-02-14 1985-08-29 Kurt 3050 Wunstorf Wagner Verfahren und vorrichtung zum beseitigen von oberflaechenschaeden an ebenen glasflaechen
DE8618750U1 (de) * 1986-07-12 1986-09-04 C. & E. Fein Gmbh & Co, 7000 Stuttgart Handschleifgerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103894327A (zh) * 2014-04-24 2014-07-02 华晨汽车集团控股有限公司 一种涂装打磨工具

Also Published As

Publication number Publication date
DE4125795C1 (fr) 1993-02-11
JPH0615559A (ja) 1994-01-25
EP0526845B1 (fr) 1994-09-28
ATE112203T1 (de) 1994-10-15
EP0526845A3 (fr) 1993-04-14
CA2075081A1 (fr) 1993-02-04
US5292352A (en) 1994-03-08
DE59200562D1 (de) 1994-11-03
ES2063556T3 (es) 1995-01-01

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