EP2537633B1 - Système d'usinage d'un biseau - Google Patents

Système d'usinage d'un biseau Download PDF

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Publication number
EP2537633B1
EP2537633B1 EP20110171314 EP11171314A EP2537633B1 EP 2537633 B1 EP2537633 B1 EP 2537633B1 EP 20110171314 EP20110171314 EP 20110171314 EP 11171314 A EP11171314 A EP 11171314A EP 2537633 B1 EP2537633 B1 EP 2537633B1
Authority
EP
European Patent Office
Prior art keywords
support
abrasive
crystal
bevel
moving
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.)
Active
Application number
EP20110171314
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2537633A1 (fr
Inventor
Christophe Vuillemin
Fabien Bez
Jean-Paul Tassetti
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.)
Comadur SA
Original Assignee
Comadur SA
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 Comadur SA filed Critical Comadur SA
Priority to EP20110171314 priority Critical patent/EP2537633B1/fr
Priority to US13/529,348 priority patent/US8956202B2/en
Priority to CN201210212014.0A priority patent/CN102837237B/zh
Priority to JP2012140418A priority patent/JP2013006268A/ja
Publication of EP2537633A1 publication Critical patent/EP2537633A1/fr
Application granted granted Critical
Publication of EP2537633B1 publication Critical patent/EP2537633B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B9/085—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 for watch glasses
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/002—Machines or devices using grinding or polishing belts; Accessories therefor for grinding edges or bevels
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/06—Devices for shaping or setting watch glasses
    • G04D3/065—Shaping by removing material, e.g. cutting out from a plate, milling the edges

Definitions

  • the invention relates to a lapidary system for a piece of hard material such as corundum and, more particularly, such a system for forming a bevel.
  • Watch ice wedges are generally formed by a wheel that moves tangentially at the angle of the bevel against the edge of the workpiece. This technique is widespread but is slow to operate, regularly causes grittiness (splinters of matter) and requires subsequent brushing.
  • WO 02/49802 A1 discloses a machining system of a bevel on a disc part, in particular a silicon wafer, comprising a polishing device comprising polishing means, a device for fixing the workpiece comprising a support on which said workpiece is fitted and which is integral with an axis of rotation, means for bringing the support relative to the polishing means to machine the workpiece under stress, the polishing means being movable and formed by a polishing strip rotatably mounted.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing a machining system of a bevel for faster manufacturing and which lowers the scrap rate.
  • the invention relates to a machining system of a bevel on a timepiece glass comprising a grinding device comprising abrasive means an ice fixing device comprising a support on which is adjusted said mirror and which is integral with an axis of rotation, the fixing device further comprising means for orienting the axis of rotation to define the angle of said bevel and means for bringing the support relative to the abrasive means for machining the ice under stress, the abrasive means being movable and formed by an abrasive belt rotatably mounted, and the grinding device comprising, in the area of contact between the abrasive belt and the ice, elastic means to maintain contact between the abrasive belt and the ice.
  • the angle of the bevel of the workpiece is directly given by the inclination of the workpiece relative to the abrasive means and the stress induced by the means of approach allows to bevel more quickly by avoiding that the material undergoes excessive stresses while making unnecessary an additional step of brushing the bevel.
  • the invention relates to a machining system 1 of a bevel 32, 34 for a piece of hardened timepieces 31 made of hard material such as corundum.
  • the piece 31 may be especially intended to form a spherical ice timepiece.
  • the machining system 1 comprises a grinding device 3, a fixture 5 of the workpiece and a control device 7 making it possible to manage the actuators of the system 1, all the devices being mounted on a frame 2.
  • the grinding device 3 comprises abrasive means 4 which are preferably movable in order to improve the machining.
  • the abrasive means 4 are formed by an abrasive belt 6 rotatably mounted on two rollers 8, 10 and driven by an actuator 12 according to the movement A.
  • the grinding device 3 comprises a restricted zone 14 in which the abrasive means 4 are accessible and protected by vertical walls to limit the projections of material and secure handling.
  • the grinding device 3 further comprises, under the contact zone 14 between the abrasive belt 6 and the workpiece 31 to be machined, resilient means 9 in order to maintain contact between the abrasive belt 6 and said workpiece .
  • the elastic means 9 are formed by an elastomer block 11 such as rubber several centimeters thick and lining all or part of the restricted zone 14 under the abrasive means 4.
  • the fixing device 5 of the part 31 comprises a support 13 on which is fitted the workpiece 31 to be machined and which is integral with an axis of rotation 16 driven by an actuator 18 according to the movement B.
  • the fastening device 5 further comprises means 15 for orienting the axis of rotation 16 making it possible to define the angle ⁇ , ⁇ of the bevel 32, 34 and the means of approach 17 of the support 13 with respect to the abrasive means 4 to machine the workpiece 31 under stress.
  • the means of approach 17 comprise a vertical carriage 19 making it possible to move vertically in the direction C, the support 13 with respect to the abrasive means 4.
  • the orientation means 15 comprise, in a preferred manner according to the invention, a set 20 screw-endless - toothed wheel for shifting the inclination ⁇ of the axis of rotation 16 of the support 13 relative to the means
  • the angle of the bevel ⁇ , ⁇ of the part 31 is directly given by the inclination ⁇ of the part 31 with respect to the abrasive means 4.
  • the fixing device 5 comprises, preferably, a horizontal carriage 21 for moving transversely in the direction D, the support 13 with respect to the abrasive means 4.
  • the horizontal carriage 21 is used as a base for the fastening device 5 on the frame 2.
  • the horizontal carriage 21 supports the vertical carriage 19, itself supporting the orientation means 15 and the support assembly 13 - axis of rotation 16 - actuator 18.
  • the horizontal carriage 21 is moved via an assembly 23 of the connecting rod-crank type in order to move the support 13 transversely in the direction D with respect to the abrasive means 4 in a movement of va-and -Comes.
  • the assembly 23 of the connecting rod - crank type is connected to the horizontal carriage 21 at the bracket 22.
  • FIGS. Figures 4 and 5 An example of a part 31 modified by the machining system 1 is illustrated in FIGS. Figures 4 and 5 .
  • the part 31 comprises a substantially discoidal body 33 whose edges comprise bevels 32, 34 according to predefined angles ⁇ , ⁇ .
  • the piece 31 is a spherical ice, that is to say it has an outer radius 35 and an inner radius 36, the difference in dimension represents the constant thickness e.
  • the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
  • the shape of the piece 31 may be different and / or a different material corundum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (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)
EP20110171314 2011-06-24 2011-06-24 Système d'usinage d'un biseau Active EP2537633B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20110171314 EP2537633B1 (fr) 2011-06-24 2011-06-24 Système d'usinage d'un biseau
US13/529,348 US8956202B2 (en) 2011-06-24 2012-06-21 System for machining a bevel
CN201210212014.0A CN102837237B (zh) 2011-06-24 2012-06-21 用于加工斜面的系统
JP2012140418A JP2013006268A (ja) 2011-06-24 2012-06-22 面取り部を機械加工するシステム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110171314 EP2537633B1 (fr) 2011-06-24 2011-06-24 Système d'usinage d'un biseau

Publications (2)

Publication Number Publication Date
EP2537633A1 EP2537633A1 (fr) 2012-12-26
EP2537633B1 true EP2537633B1 (fr) 2014-05-07

Family

ID=44514465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110171314 Active EP2537633B1 (fr) 2011-06-24 2011-06-24 Système d'usinage d'un biseau

Country Status (4)

Country Link
US (1) US8956202B2 (zh)
EP (1) EP2537633B1 (zh)
JP (1) JP2013006268A (zh)
CN (1) CN102837237B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2500134A1 (fr) * 2011-03-16 2012-09-19 Comadur S.A. Pièce d'habillage pour une pièce d'horlogerie et son système de fabrication
WO2014197551A2 (en) 2013-06-07 2014-12-11 3M Innovative Properties Company Method of forming a recess in a substrate, abrasive wheel, and cover
CN104097122B (zh) * 2014-07-04 2017-02-22 刘治业 一种加工异形玻璃斜边的方法和磨边机
JP6920849B2 (ja) * 2017-03-27 2021-08-18 株式会社荏原製作所 基板処理方法および装置
CN106985025A (zh) * 2017-05-14 2017-07-28 合肥鼎鑫模具有限公司 模具打磨清洗设备
CN110480466A (zh) * 2018-05-15 2019-11-22 浙江永耀机械科技有限公司 单游动无弧面水晶辊筒磨抛机
CN111993196B (zh) * 2020-09-24 2021-10-19 合肥市东庐机械制造有限公司 一种叉车配件精加工用磨边设备

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* Cited by examiner, † Cited by third party
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US1998642A (en) * 1932-12-16 1935-04-23 Edward C Smith Stone shaping device
US2534384A (en) * 1942-03-31 1950-12-19 Spira Josef Hillel Apparatus for polishing or forming facets on gems, diamonds, or the like
US3183629A (en) * 1963-05-22 1965-05-18 Hammond Machinery Builders Inc Splash curtain for belt grinder
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Also Published As

Publication number Publication date
CN102837237B (zh) 2016-11-16
US20120329372A1 (en) 2012-12-27
EP2537633A1 (fr) 2012-12-26
CN102837237A (zh) 2012-12-26
US8956202B2 (en) 2015-02-17
JP2013006268A (ja) 2013-01-10

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