EP0495271A1 - Gerät zum Schleifen des Randes einer Glasscheibe - Google Patents

Gerät zum Schleifen des Randes einer Glasscheibe Download PDF

Info

Publication number
EP0495271A1
EP0495271A1 EP91300263A EP91300263A EP0495271A1 EP 0495271 A1 EP0495271 A1 EP 0495271A1 EP 91300263 A EP91300263 A EP 91300263A EP 91300263 A EP91300263 A EP 91300263A EP 0495271 A1 EP0495271 A1 EP 0495271A1
Authority
EP
European Patent Office
Prior art keywords
glass member
working
supporting
grinding
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
EP91300263A
Other languages
English (en)
French (fr)
Other versions
EP0495271B1 (de
Inventor
Shigeru Bando
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.)
Bando Kiko Co Ltd
Original Assignee
Bando Kiko Co Ltd
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 Bando Kiko Co Ltd filed Critical Bando Kiko Co Ltd
Priority to EP19910300263 priority Critical patent/EP0495271B1/de
Priority to DE1991606335 priority patent/DE69106335T2/de
Publication of EP0495271A1 publication Critical patent/EP0495271A1/de
Application granted granted Critical
Publication of EP0495271B1 publication Critical patent/EP0495271B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B24B9/10—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 of plate glass

Definitions

  • This invention relates to a grinding apparatus for, for instance, grinding, abrading, pencil-edging, smoothing or seaming a peripheral edge of the glass sheet by moving and angularly controlling a grinding wheel by means of a numerical control system.
  • the present invention relates to a grinding apparatus suitable for conducting a pencil-edging, smoothing or seaming of the edge of the glass sheet or plate which is used as automobile glass such as a windshield, a rear window glass and a side window glass.
  • this invention is concerned with an improvement of an apparatus for grinding a glass sheet, which comprises a grinding head equipped with a grinding wheel and operates in the following manner. Namely, the grinding head is moved along a previously programmed outer profile of a glass sheet placed on an X-Y coordinate plane by means of a numerical control system and is orbited angularly around an axis or a vertical axis perpendicular to the X-Y coordinate plane during the movement along the outer profile so that a rotation axis of the grinding wheel is moved and positioned in the direction normal to the profile line of the glass sheet and the circumferential edge of the grinding wheel is brought into contact with the peripheral edge of the glass sheet.
  • the apparatus is a type of an air float in which the grinding wheel is pressed against the peripheral edge of the glass sheet by means of an air cylinder disposed on the grinding head.
  • the seaming is generally performed with the apparatus of the type of an air float in such a way that the grinding wheel is elastically supported under air pressure force developed by an air cylinder and softly contacts the peripheral edge of the glass sheet so that a delicate and fine grinding, for instance, of the seaming can be achieved. If the air pressure exerted on the air cylinder is increased, the grinding wheel is strongly pressed against a peripheral portion of the glass sheet so that it can be completely ground. Since the grinding wheel elastically contacts the glass sheet under the air pressure force, it is effectively prevented to cause a failed or incomplete grinding of the glass sheet.
  • the grinding apparatus which is of the air-floating type and numerically controllable as mentioned above, has the following disadvantages.
  • the grinding head of the grinding apparatus composed of the grinding wheel which directly performs the grinding of the glass sheet, the spindle for the grinding wheel, and other parts which are mounted thereon, is supported movably by a weak elastic force based on the air pressure. Therefore, when the grinding head is subjected to an excessive angular-control at the round corner portion of the glass sheet, the grinding head including the grinding wheel are deviated outward or vibrated by a centrifugal force so that the glass sheet is undesirably ground to generate deformation or distortion in its configuration and dimension. The distortion or deformation generated at the corner portion of the glass sheet is increased by an increase of working speed and a drastic angular-control of the grinding wheel, resulting in yield reduction of the products.
  • the grinding apparatus comprises a base member, a sliding portion slidably mounted on the base member, the sliding portion including a working wheel and a spindle on which the working wheel is mounted, supporting means provided on the base member for elastically supporting the sliding portion on the base member when the sliding portion is not influenced by the excessive centrifugal force and rigidly supporting the sliding portion on the base member when an excessive centrifugal force is exerted on the sliding portion due to angular-control.
  • a grinding apparatus 1 has a working or grinding wheel 2 which is controlled by a numerical control device (not shown) based on a numerical command thereof to grind an edge 3 of a glass sheet or plate 4.
  • a head carriage 11 from which a working or grinding head 12 is suspended through a bearing device 13 is mounted slidably in the direction of the axis Y on a frame 14 by means of a Y-axis sliding device 15 apart from the table 5 in an upper portion of the apparatus 1, the axis Y extending perpendicular to the direction X, the frame 14 being mounted on side frames 16a which are provided on the side end of the bed 8.
  • the carriage 11 is connected to a Y-axis feed screw 16 which is connected to an output shaft of a Y-axis servo motor 17 by means of a belt 18, whereby the carrige 11 is rectilinearly moved on the sliding device 15 in the direction of the axis Y so that the head 12 is also rectilinearly moved in the direction of the axis Y when the motor 17 is driven by means of the numerical control device and then the screw 16 is rotated by means of the belt 18 on the grinding operation.
  • the bearing device 13 mounted on the head carriage 11 rotatably supports a orbiting shaft 19 extending in the vertical direction or along an axis Z which is perpendicular to the directions of the axes X and Y.
  • the grinding head 12 is suspended from the lower portion of the shaft 19 which is provided with a bevel gear 20 at an upper portion thereof.
  • the gear 20 engages with a bevel gear 21 having a shaft 22 which is supported rotatably by bearings 23 fixed on the carriage 11.
  • the shaft 22 is connected to an output shaft of a servo motor 24 through a belt 25 and a reduction gear 26.
  • the orbiting shaft 19 is disposed perpendicular to a plane surface of the glass sheet 4 which is placed on the table 5 and defines the X-Y coordinate plane.
  • the grinding head 12 includes a base member 27 which is connected fixedly to the shaft 19 at the upper portion thereof, a first sliding device 28 connected slidably to the base member 27 for adjusting the initial position of the wheel 2 in direction P parallel to the plane X-Y by means of the rotation of a knob 29 with a screw, a second sliding device 30 connected slidably to the device 28 for adjusting the initial position of the wheel 2 in direction Q perpendicular to the direction P and parallel to the plane X-Y by means of the rotation of a knob 31 with a screw, and a third sliding device 32 connected slidably to the device 30 for adjusting the initial position of the wheel 2 in direction Z by means of the rotation of a knob 33 with a screw.
  • the grinding head 12 further includes a spindle motor device 34 mounted on the device 32 slidably in the direction Q through a slider 35, the motor device 34 being provided on the lower end of the spindle thereof with the wheel 2 which has a groove on a peripheral edge thereof, and an air cylinder 36 mounted on the device 32 by means of a supporting member 37.
  • the motor device 34 has both functions of a spindle and a motor for driving the spindle.
  • the slider 35 comprises a base plate 35a on which the motor device 34 is fixedly mounted, a pair of shafts 38 and 39 extending parallel to each other and along the direction Q and supported fixedly on the device 32 through supporting members 40 at the ends thereof, and slide bearings 40a fixed to the plate 35a and slidably connected to the shafts 38 and 39.
  • a ball sliding bearing may be generally used as the bearings 40a so as to be able to move motor device 34 in the direction Q by only a small air pressure force developed by means of the air cylinder 36.
  • the air cylinder 36 has a connecting rod 41 which is connected at the end of thereof to the plate 35a on which the motor device 34 is mounted, thereby the motor device 34 is supported in air-floating manner in the direction Q with respect to the the slide device 32 and therefore the base member 27.
  • An air cylinder especially a low friction air cylinder, preferably bellow-diaphragm type cylinder produced by Fujikura Rubber Limited may be used as the air cylinder 36.
  • a brake device 42 is fixedly mounted on the slider 32 through a bracket 43 at the position between the spindle motor device 34 and the air cylinder 36 which air-floatingly supports the device 34 with respect to the direction Q.
  • the brake device 42 includes chuck claws 44 for chucking the rod 41 at a closed position thereof to prevent the rod 41 to move in the direction Q and to then fix the motor device 34 to the slider 32, and a fluid actuator, for instance, air cylinder 45 for actuating the claws 44 by means of an air pressur to set the claws 44 at the opened and closed positions, and an air valve (not shown) for controlling a supplying of the air 46 to the cylinder 45 by means of the numerical control device.
  • the slider 35 and the spindle motor device 34 fitted with the grinding wheel 2 are air-floatingly supported through the coupling rod 41 by the air cylinder 36 in the direction Q.
  • the slider 35 and the spindle motor device 34 is locked in the slider 32 and is therefore supported rigidly on the device 32 so that the grinding wheel 2 pressed rigidly against the edge 3 of the sheet 4 at the point B performs the grinding or ceaming operation without influence of air-floating movement.
  • the apparatus 1 of the invention performs the ceaming operation of the glass sheet 4 as follows.
  • the grinding wheel 2 is moved along the programmed profile of the glass sheet 4 placed on the table 5.
  • the grinding wheel 2 is controlled angularly around the axis A to position the rotation center C of the wheel 2 in the direction normal to the profile of the peripheral edge 3 of the sheet 4 at the working point B while being air-floatingly supported by means of the air cylinder 36.
  • the numerical control device controls such that the brake device 42 locks an air-floating movement of the motor device 34 with the wheel 2.
  • the present invention may be also applied to a grinding apparatus in which the motor device 34 is provided on the lower end of the spindle thereof with a smoothing wheel as the working wheel to smooth the peripheral edge 3 of the glass sheet 4 ground.
  • the apparatus 1 enables the peripheral edge 3 of the glass sheet 4 to be accurately ground or smoothed along the programmed profile including a round corner, resulting in achievement of a ceaming operation at both the round corner and other straight-line peripheral portions without any curvature.
EP19910300263 1991-01-15 1991-01-15 Gerät zum Schleifen des Randes einer Glasscheibe Expired - Lifetime EP0495271B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19910300263 EP0495271B1 (de) 1991-01-15 1991-01-15 Gerät zum Schleifen des Randes einer Glasscheibe
DE1991606335 DE69106335T2 (de) 1991-01-15 1991-01-15 Gerät zum Schleifen des Randes einer Glasscheibe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19910300263 EP0495271B1 (de) 1991-01-15 1991-01-15 Gerät zum Schleifen des Randes einer Glasscheibe

Publications (2)

Publication Number Publication Date
EP0495271A1 true EP0495271A1 (de) 1992-07-22
EP0495271B1 EP0495271B1 (de) 1994-12-28

Family

ID=8208157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910300263 Expired - Lifetime EP0495271B1 (de) 1991-01-15 1991-01-15 Gerät zum Schleifen des Randes einer Glasscheibe

Country Status (2)

Country Link
EP (1) EP0495271B1 (de)
DE (1) DE69106335T2 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103084942A (zh) * 2013-01-25 2013-05-08 江苏瑞普机床有限公司 小孔内锥面精密数控磨床
CN106475877A (zh) * 2015-08-31 2017-03-08 江苏安捷利机电科技有限公司 一种电动汽车配件打磨装置
CN107538302A (zh) * 2017-10-31 2018-01-05 福建晟哲自动化科技有限公司 一种倒角研磨机
CN108789014A (zh) * 2018-08-31 2018-11-13 广东标华科技有限公司 一种装有组合式滚筒磨轮的磨边机
CN109605159A (zh) * 2019-01-02 2019-04-12 天长市九星仪表有限公司 一种流量表壳体端口去毛刺装置
CN111729819A (zh) * 2020-06-22 2020-10-02 芜湖青悠静谧环保科技有限公司 一种基于玻璃加工的自动打胶装置
CN112372412A (zh) * 2020-09-29 2021-02-19 冯蕾 一种用于清理玻璃表面划痕的智能制造装置
CN113084634A (zh) * 2021-04-22 2021-07-09 田原 一种高强韧钢板及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111168401A (zh) * 2019-12-20 2020-05-19 芜湖舜富精密压铸科技有限公司 智能去毛刺打磨清理装备
CN112936076B (zh) * 2021-02-23 2022-11-11 唐山国芯晶源电子有限公司 一种晶圆光刻旋转设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244348A1 (de) * 1972-09-09 1974-04-11 Martin Rautenstrauch Vorrichtung zum anfasen und/oder abrunden der ecken an glasplatten
FR2587260A1 (fr) * 1985-09-18 1987-03-20 Bando Kiko Co Rectifieuse pour pans de verre a controle numerique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2244348A1 (de) * 1972-09-09 1974-04-11 Martin Rautenstrauch Vorrichtung zum anfasen und/oder abrunden der ecken an glasplatten
FR2587260A1 (fr) * 1985-09-18 1987-03-20 Bando Kiko Co Rectifieuse pour pans de verre a controle numerique

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 120 (M-685)(2967) 14 April 1988, & JP-A-62 246463 (BANDOU KIKO K.K.) 27 October 1987, *
PATENT ABSTRACTS OF JAPAN vol. 5, no. 193 (M-101)(865) 09 December 1981, & JP-A-56 114655 (BANDOU KIKOU K.K.) 09 September 1981, *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103084942A (zh) * 2013-01-25 2013-05-08 江苏瑞普机床有限公司 小孔内锥面精密数控磨床
CN103084942B (zh) * 2013-01-25 2015-01-21 江苏瑞普机床有限公司 小孔内锥面精密数控磨床
CN106475877A (zh) * 2015-08-31 2017-03-08 江苏安捷利机电科技有限公司 一种电动汽车配件打磨装置
CN107538302A (zh) * 2017-10-31 2018-01-05 福建晟哲自动化科技有限公司 一种倒角研磨机
CN108789014A (zh) * 2018-08-31 2018-11-13 广东标华科技有限公司 一种装有组合式滚筒磨轮的磨边机
CN109605159A (zh) * 2019-01-02 2019-04-12 天长市九星仪表有限公司 一种流量表壳体端口去毛刺装置
CN111729819A (zh) * 2020-06-22 2020-10-02 芜湖青悠静谧环保科技有限公司 一种基于玻璃加工的自动打胶装置
CN112372412A (zh) * 2020-09-29 2021-02-19 冯蕾 一种用于清理玻璃表面划痕的智能制造装置
CN113084634A (zh) * 2021-04-22 2021-07-09 田原 一种高强韧钢板及其制备方法

Also Published As

Publication number Publication date
DE69106335T2 (de) 1995-05-11
EP0495271B1 (de) 1994-12-28
DE69106335D1 (de) 1995-02-09

Similar Documents

Publication Publication Date Title
US5146715A (en) Apparatus for grinding a peripheral edge of a glass sheet
US5409417A (en) Numerically controlled grinding machine for plate glass
US6419443B2 (en) Glass product machining apparatus
JP3331545B2 (ja) 研削盤
EP0495271B1 (de) Gerät zum Schleifen des Randes einer Glasscheibe
JP3730410B2 (ja) 眼鏡レンズ加工装置
JP2503832B2 (ja) ガラス板の数値制御加工装置
CN112318294A (zh) 一种可控力矩浮动主轴及控制方法
JPH057143B2 (de)
JPH0760626A (ja) ガラス板の加工装置
JP2849904B2 (ja) ワークの面取加工装置、外周加工装置及び面取・外周加工装置
JPH08336746A (ja) ガラス板の数値制御研削機械
JPH0319031B2 (de)
JPH0349706B2 (de)
JPH0523961A (ja) ガラス板の加工機械
JP4460736B2 (ja) 研磨装置
JPH0623666A (ja) ドレッシングを伴う内研用砥石の自動位置決め方法
JP5010421B2 (ja) 工作物外径面および平面のセンタレス研削方法およびセンタレス研削装置
JP2001096446A (ja) バリ取り装置
JPS632662A (ja) プロフイ−ルロ−タリ−サンダにおける研磨方法
JP2666447B2 (ja) 研摩装置
JPH04269156A (ja) ガラス板の加工装置
JPH04189458A (ja) 曲面研削加工機
JPH04315562A (ja) 磁気ヘッドのブレンド加工方法およびブレンド加工機
AU2021290312B1 (en) Machine, assembly and method of operation

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI

17P Request for examination filed

Effective date: 19921001

17Q First examination report despatched

Effective date: 19930907

ITF It: translation for a ep patent filed

Owner name: FIAMMENGHI FIAMMENGHI RACHELI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19941228

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19941228

REF Corresponds to:

Ref document number: 69106335

Country of ref document: DE

Date of ref document: 19950209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950328

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950328

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960115

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960130

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19970131

Ref country code: CH

Effective date: 19970131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19971001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050115