EP1170091B1 - Outil de chanfreinage - Google Patents

Outil de chanfreinage Download PDF

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Publication number
EP1170091B1
EP1170091B1 EP01114535A EP01114535A EP1170091B1 EP 1170091 B1 EP1170091 B1 EP 1170091B1 EP 01114535 A EP01114535 A EP 01114535A EP 01114535 A EP01114535 A EP 01114535A EP 1170091 B1 EP1170091 B1 EP 1170091B1
Authority
EP
European Patent Office
Prior art keywords
tool
intermediate piece
tool according
abrasive coating
chamfering 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.)
Expired - Lifetime
Application number
EP01114535A
Other languages
German (de)
English (en)
Other versions
EP1170091A2 (fr
EP1170091A3 (fr
Inventor
Rainer Lübke
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.)
Wendt GmbH
Original Assignee
Wendt GmbH
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 Wendt GmbH filed Critical Wendt GmbH
Publication of EP1170091A2 publication Critical patent/EP1170091A2/fr
Publication of EP1170091A3 publication Critical patent/EP1170091A3/fr
Application granted granted Critical
Publication of EP1170091B1 publication Critical patent/EP1170091B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • 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
    • B24D7/10—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 with cooling provisions
    • 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 present invention relates to a countersink tool according to the preamble of claim 1.
  • FR-A-2 013 231 is a combined drilling and milling tool according to the preamble of claim 1.
  • WO 98/57771 A describes a drilling tool for cutting a round hole, with a cylindrical tool neck of non-metallic Material.
  • the drilling tool consists of a cylindrical tube, which front with a cutting surface or The like is provided.
  • the plastic adapter serves practically as a coupling between the work spindle and the abrasive coating and consumes the occurring vibration excitations, so to speak within of its own volume, as it is compared to the other at the Oscillation movement involved machine and tool components is relatively flexible. Nevertheless, that will be Plastic spacer at best in the elastic range deform, since it consists of a pressure-resistant plastic, which always withstands the feed forces.
  • suitable Plastic can be considered Bakelite, for example.
  • materials such as rubber, polyamide, PTFE (polytetrafluoroethylene) are and others conceivable.
  • a basic principle of the invention is based on Considering that by the internal damping of the plastic the machine tool, in particular the spindle carrier and the tool spindle is significantly less bending under the present feed forces, since a part of the respective Feed of elastic deformation of the plastic intermediate piece recorded and consumed there.
  • the Plastic adapter should be used in industrial Range of channels interspersed to be communicating Flow connection between a usually axial Produce inflow channel and the abrasive coating.
  • the invention avoids, among other things, a floating of the diamond coating, which comes about during processing, that small and smallest chips of glass removal add to the coating. These chips practically fill the spaces between the chips Diamonds off and stick to the surface of the tool, so that the diamond tips practically no longer in the production the reduction can be involved. This condition will Usually not detected by the machine tools, so that the feed drive despite reduced grinding ability of Abrasive lining continues to run.
  • the resulting high pressures can in conjunction with the elasticity not designed for this type of operation the machines trigger the feared vibrations.
  • the abrasive coating can be added between the spaces do not free the grinding diamond on its own, so that this operating condition is extremely unpleasant.
  • the plastic adapter gives according to its pressure-elastic properties and thus enables the release of the removal.
  • the invention also takes into account the Course of the diamond sharpness over the life of the tool.
  • Another advantage of the invention is the adaptability to different head angle of the countersink tool. This is understood to mean the cone angle with which the Tool head faces the workpiece and its apex lies on the geometric axis of rotation of the countersink tool.
  • This head angle can be in the range between 0 ° and 180 ° lie and thus an almost arbitrary value within this Take limits. In such countersinking tools separates However, a head angle of 0 ° as well as a head angle of 180 °.
  • the head angle is in the range between about 30 ° to about 130 °, preferably at about 120 °, provided that subsidence manufacture for the above-mentioned fastening systems want.
  • a preferred embodiment differentiates the invention in two embodiments.
  • the plastic spacer forms the tool head and sits centered on the front End of the tool neck.
  • This embodiment provides the advantage that the tool head, which a relatively large distance to the tool spindle takes, consists of the lightweight plastic material and thus the countersink tool only to small vibration amplitudes stimulates.
  • the invention can also be used on a combination tool, in which in front of the counterbore a drill section is provided for the preparation of the cylindrical bore in Workpiece. Immediately thereafter sets without tool change the Countersink part on the workpiece to the intended depth reduction manufacture.
  • This bowl-shaped body can be made by a sintering process be prepared.
  • the figures show a countersinking tool 1 for the production of conical recesses 13 on cylindrical bores 12 in Glass panes 10.
  • a glass sheet 10 is located on a below of the countersink tool 1 located support 11 and is held there properly while the countersink tool 1 rotating about the (here) vertical axis of rotation the glass sheet 10 is lowered.
  • a portion of the bore 12 remains straight cylindrical, while the reduction 13 executed as so-called depth reduction becomes. These are to be understood as subsidence, their insertion depth in the glass sheet 10 is significantly larger than it alone necessary for a deburring of the cylindrical bore 12 would.
  • Such countersinking tool has a tool neck 6, the end in the tool holder of a drive spindle a machine tool 4 is clamped against rotation. On the Drive motor 3, the work spindle 2 is rotated. This rotational movement is optionally via a suitable Coupling end as a rotary motion in the tool neck 6 introduced there, where the drive end 5 is marked.
  • the tool neck 6 has a tool head 7, which is equipped with a conical head angle 8 is.
  • the tool head 7 has a conical inclined surface, where the abrasive pad 9 is attached. through This abrasive pad 9 is at a corresponding feed of the Countersink tool 1 in the direction of the glass pane 10, the depth reduction 13 central and concentric with the straight cylindrical Bore 12 introduced from one side.
  • coolant supply 26 is effected by a Axial channel, which the tool neck 6 to the tool head. 7 interspersed and there in a channel system 16a, b, c, d passes, which opens in the region of the abrasive pad 9 on the tool head.
  • the axial inflow passage 17 passes through the tool neck central to the axis of rotation, so that the coolant supply 26 is constantly communicating with the abrasive coating.
  • the plastic spacer 14 follows in principle the head shape, which is defined by the apex 15 and has corresponding rotary drivers over which it rotatably connected to the drive spindle 2 is connected.
  • a peripheral screw 27 in the embodiments according to. Fig.1, 3 and 5, by means of which the plastic intermediate piece 14 on the head side is posted on the tool neck 6.
  • the circumferential screw connection 27 sits with a thread in a corresponding Tapped hole of the plastic spacer 14 and engages with a tapered pointed screw head corresponding recesses at the lower end of the tool neck 6 positively, so that the drive torque of the drive motor 3 directly into the plastic spacer 14th can be initiated.
  • the rotary driver realized by a possible circumferential adhesive joint 28, between the plastic spacer 14 and the Pads of the tool neck is formed.
  • the plastic spacer 14 therefore forms a rotationally symmetrical solid component, which is abrasive coating side the conical head shape of the countersink tool and which Tool side of the associated rotationally symmetric Training the straight-cylindrical tool neck follows.
  • the material accumulation of the plastic intermediate piece 14 for the consumption of periodically recurring Forces and moments are used, which may be by the natural vibration behavior of the entire arrangement between Adjust machine tool 4 and workpiece 10.
  • the plastic spacer 14 with respect the force acting in the direction of the cone tip 15 feed forces pressure resistant and also has good internal damping properties on.
  • At least the plastic spacer 14 is such pressure resistant, that under the given feed forces during manufacture the depth reduction of the abrasive coating 9 substantially only subjected to compressive forces and therefore no elastic Deformations of the plastic spacer in the active area Must follow grinding zone.
  • the figures show plastic spacers 14, which are interspersed by channels 10 and 16a to d. This is necessary if you want a communicating flow connection between the abrasive coating 9 and the axial inflow channel 26 create the active grinding zone always and continuously to supply with cooling liquid.
  • the axial opens Inflow channel 14 additionally in a central distribution space 18, from which the radial channels 16a start up to 16d into the corresponding outlet openings in the Continue with abrasive coating 9.
  • FIG. 2 shows a segmentation of the abrasive coating 9 in (here) four equally sized ring segments, which from respective recess grooves 19 are interrupted.
  • the recessed grooves 19 open the respective radial Channels 16a to d, so that the cooling liquid of the head shape following the plastic spacer 14 over the entire can distribute active grinding zone.
  • recessed grooves 19 are in the direction of the countersinking tool 1 limited by the material of the plastic spacer and through the adjacent walls of each the conical head of the plastic spacer 14 applied and mutually adjacent ring segments of Abrasive coating 9.
  • the figures show countersink tools with head angles, which are smaller than 180 ° and larger than 0 °.
  • the head angle is approximately 90 °.
  • head angle 8 which clearly has no face plates with a Angle of 180 ° and no straight-cylindrical discs are at an angle of 0 °.
  • FIG. 1 shows an exemplary embodiment which the plastic spacer 14 the tool head. 7 forms and centered on the front end of the tool neck. 6 is scheduled.
  • the centering consists of a pairing of central Projection 20 and associated central recess 21st on the tool head or tool neck. It is the Depth 23 of the projection 20 is less than the depth 24 of the recess 21, so that the central distribution chamber 18 also at completely deep set intermediate piece 14 is formed automatically.
  • the related distribution channels 16a to 16d can consequently mounted alone in the plastic spacer 14 be because the immersion depth 22 between projection 20 and recess 21 is less than the available depth 24 of the recess 21st
  • the immersion depth 22 of the projection 20 is in the recess 21 is limited by a depth stop so that the central distribution space 18 is created, which on both sides of the abrasive pad 9 as well as on the side of the tool neck 6 communicates with a channel system for cooling fluid.
  • the depth stop is by a Ring paragraph formed on the tool neck 6, against which the annular end face of the plastic intermediate piece 14 under Tightening of the compression fitting 27 held pressure-resistant.
  • the channel system 16a to 16d on the side of the abrasive coating 9 in at least two to lead to different radii. This requirement is made possible by the basically conical tool head. All distribution channels 16a to 16d should be in the range the recessed grooves 19 on the top surface of the plastic spacer 14 lead.
  • FIGS. 3 and 4 show a development, in which both the plastic spacer 14 as also the tool neck 6 made of plastic.
  • Fig.3 consists of Tool neck 6 made of a plastic other than the plastic adapter 14.
  • the attachment between plastic spacer 14 and tool neck 6 corresponds to the construction according to Fig.1.
  • plastic spacer 14 the entire countersink tool one-piece and one-piece made of plastic and can therefore be referred to as plastic spacer 14 become.
  • FIG. 5 shows an exemplary embodiment, in which the tool neck 6, the entire plastic spacer 14 in the direction of the apex 15 interspersed and this towered over a piece.
  • the tool neck 6 forms a straight ring cylinder, which at the end face an abrasive Covering z. B. is sintered. Do you do that? Tool towards a glass plate 10, so will first once the straight cylindrical hole drilled, which subsequently from the subordinate countersink tool with the countersink is provided.
  • the coating on the Glued on plastic spacer In all embodiments, the coating on the Glued on plastic spacer. To this end Two-component or hot-melt adhesives could be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (15)

  1. Outil de chambre (1) pour façonner des chambrages coniques (13) sur des alésages cylindriques (12) pratiqués dans des vitrages (10), comportant un col (6) qui est conçu pour être enserré, par une extrémité, dans le logement d'outillage d'une machine-outil (4) et qui présente, à l'autre extrémité, une tête d'outillage (7) à angle de tête (8) conique, et sur la face inclinée de laquelle le revêtement abrasif (9) est implanté, caractérisé par le fait que ledit revêtement abrasif (9) est assujetti en rotation à la broche d'entraínement (2) par l'intermédiaire d'une pièce intercalaire (14) en matière plastique ; par le fait que ladite pièce intercalaire (14) en matière plastique est résistante à la pression vis-à-vis des forces d'avance agissant en direction de la pointe (15) du cône, et possède additionnellement de bonnes propriétés d'amortissement interne ; par le fait que ladite pièce intercalaire (14) en matière plastique est parcourue par des canaux (17, 16a à d), qui établissent une liaison d'écoulement communicante entre le revêtement abrasif (9) et un canal axial d'afflux (17) alimenté en fluide de refroidissement ; par le fait que les creusures radiales sont des saignées (19) parcourant le revêtement abrasif (9) en direction de la pièce intercalaire (14) en matière plastique ; et par le fait que les canaux répartiteurs (16a à d) s'achèvent dans des creusures radiales du revêtement abrasif (9), sachant que la pièce intercalaire (14) en matière plastique coïncide, dans le principe, avec la forme de la tête qui est fermement établie par la pointe (15) du cône, et présente des organes correspondants d'entraínement en rotation, par l'intermédiaire desquels elle est reliée à la broche d'entraínement (2) avec assujettissement en rotation.
  2. Outil de chambrage selon la revendication 1, caractérisé par le fait que les canaux (16a à d, 17) sont en communication avec une chambre centrale de répartition (18), à partir de laquelle ils se prolongent radialement jusqu'au revêtement abrasif (9).
  3. Outil de chambrage selon la revendication 1 ou 2, caractérisé par le fait que l'angle de tête (8) est inférieur à 180° et supérieur à 0°.
  4. Outil de chambrage selon la revendication 3, caractérisé par le fait que l'angle de tête est supérieur à 110° et inférieur à 130°.
  5. Outil de chambrage selon l'une des revendications 1 à 4, caractérisé par le fait que la pièce intercalaire (14) en matière plastique matérialise la tête d'outillage (7) et est rapportée, de manière centrée, sur l'extrémité antérieure du col (6) de l'outil.
  6. Outil de chambrage selon la revendication 5, caractérisé par le fait que le centrage se présente comme l'appariement d'une protubérance centrale (20) et d'un évidement central (21) associé, respectivement pratiqué dans la tête d'outillage (7) ou dans le col (6) de l'outil.
  7. Outil de chambrage selon la revendication 6, caractérisé par le fait que la profondeur de pénétration (22) de la protubérance (20), dans l'évidement (21), est limitée par une butée de profondeur, de manière à donner naissance à une chambre centrale de répartition (18) en communication, tant du côté du revêtement abrasif (9) que du côté du col (6) de l'outil, avec un système respectif de canaux (17 ; 16a à d) affectés à du fluide de refroidissement.
  8. Outil de chambrage selon la revendication 7, caractérisé par le fait que le système de canaux (16a à d) débouche sur la zone d'usinage, du côté du revêtement abrasif (9), suivant au moins deux rayons différents.
  9. Outil de chambrage selon l'une des revendications 1 à 4, caractérisé par le fait que la pièce intercalaire (14) en matière plastique, de même que le col (6) de l'outil, consistent en une matière plastique.
  10. Outil de chambrage selon la revendication 9, caractérisé par le fait que la pièce intercalaire (14) en matière plastique et le col (6) de l'outil sont réalisés en deux parties ; et par le fait que les deux parties constitutives sont rapportées l'une sur l'autre.
  11. Outil de chambrage selon l'une des revendications 1 à 10, caractérisé par le fait qu'un joint collé (28) est ménagé entre les surfaces de rattachement de la pièce intercalaire (14) en matière plastique, et les parties d'outil voisines.
  12. Outil de chambrage selon la revendication 9, caractérisé par le fait que la pièce intercalaire (14) en matière plastique et le col (6) de l'outil sont réalisés en un seul corps et d'un seul tenant.
  13. Outil de chambrage selon l'une des revendications 1 à 12, caractérisé par le fait qu'un outil d'alésage (25), placé en tête de la pièce intercalaire (14) en matière plastique, sert au façonnage de l'alésage cylindrique.
  14. Outil de chambrage selon l'une des revendications 1 à 13, caractérisé par le fait que le revêtement abrasif est rapporté par collage sur la pièce intercalaire (14) en matière plastique.
  15. Outil de chambrage selon la revendication 14, caractérisé par le fait que le revêtement abrasif est fritté.
EP01114535A 2000-07-05 2001-06-16 Outil de chanfreinage Expired - Lifetime EP1170091B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10032036A DE10032036A1 (de) 2000-07-05 2000-07-05 Senkerwerkzeug
DE10032036 2000-07-05

Publications (3)

Publication Number Publication Date
EP1170091A2 EP1170091A2 (fr) 2002-01-09
EP1170091A3 EP1170091A3 (fr) 2002-10-30
EP1170091B1 true EP1170091B1 (fr) 2005-08-10

Family

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Family Applications (1)

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EP01114535A Expired - Lifetime EP1170091B1 (fr) 2000-07-05 2001-06-16 Outil de chanfreinage

Country Status (4)

Country Link
US (1) US20020004362A1 (fr)
EP (1) EP1170091B1 (fr)
DE (2) DE10032036A1 (fr)
ES (1) ES2246963T3 (fr)

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
AT5265U1 (de) * 2001-07-27 2002-05-27 Schraml Glastechnik Gmbh Diamant-hohlbohrer
DE20212640U1 (de) 2002-08-09 2002-10-31 Bohle AG, 42781 Haan Senkwerkzeug zum Säumen von Bohrungen in Glas sowie Schleifhut
US7125328B1 (en) 2005-09-10 2006-10-24 Michael Hacikyan Glass grinding bit
JP4735381B2 (ja) * 2006-04-05 2011-07-27 株式会社デンソー 研削装置および研削方法
DE202006018176U1 (de) * 2006-11-30 2007-03-29 Gunther Schwarz Gmbh Instandsetzungswerkzeug
DE102007034140B4 (de) * 2006-11-30 2011-05-12 Gunther Schwarz Gmbh Instandsetzungswerkzeug
FR2946908B1 (fr) * 2009-06-18 2011-07-15 Peugeot Citroen Automobiles Sa Procede et outil pour obtenir une culasse de cylindre finie
DE102011076649A1 (de) * 2011-05-27 2012-11-29 Continental Automotive Gmbh Schleifstift und Verfahren zum Schleifen einer Innenoberfläche eines Hohlraumes
EP3186050A4 (fr) * 2014-08-26 2018-04-04 3M Innovative Properties Company Dispositif de coupe abrasif, amorti
WO2016109734A1 (fr) 2014-12-30 2016-07-07 Saint-Gobain Abrasives, Inc. Outils abrasifs et leurs procédés de formation
JP2019505400A (ja) 2015-12-30 2019-02-28 サンーゴバン アブレイシブズ，インコーポレイティド 研磨工具及びそれらの形成方法
EP3419785A4 (fr) * 2016-02-26 2019-09-04 3M Innovative Properties Company Article abrasif amorti
WO2018183724A1 (fr) * 2017-03-31 2018-10-04 Saint-Gobain Abrasives, Inc. Ensemble meule
US10603764B2 (en) * 2017-05-26 2020-03-31 General Electric Company Burnishing tool and method of manufacturing the same
CN107322469A (zh) * 2017-08-30 2017-11-07 苏州安洁科技股份有限公司 一种带有抛光功能的玻璃磨头
CN107837879A (zh) * 2017-10-31 2018-03-27 王明法 一种粉末涂料筛选研磨装置
US11931866B2 (en) 2018-10-19 2024-03-19 Saint-Gobain Abrasives, Inc. Grinding wheel assembly
CN109434611B (zh) * 2018-12-26 2020-03-27 贰陆光学（苏州）有限公司 镜片倒角装置
CN114227430B (zh) * 2021-11-26 2022-10-11 绍兴市舜海铜材有限公司 一种金属管件自动去毛刺装置

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DE4024399A1 (de) * 1990-08-01 1992-02-06 Hilti Ag Bohrwerkzeug
US5993297A (en) * 1994-09-06 1999-11-30 Makino Inc. Superabrasive grinding wheel with integral coolant passage
JP2001527469A (ja) * 1997-06-17 2001-12-25 ノートン カンパニー 研磨工具の耐摩耗性を改良する方法

Also Published As

Publication number Publication date
DE50107018D1 (de) 2005-09-15
DE10032036A1 (de) 2002-01-17
ES2246963T3 (es) 2006-03-01
EP1170091A2 (fr) 2002-01-09
US20020004362A1 (en) 2002-01-10
EP1170091A3 (fr) 2002-10-30

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