[go: up one dir, main page]

US20080287046A1 - Device for Clamping a Tool Insert in a Grinding Machine - Google Patents

Device for Clamping a Tool Insert in a Grinding Machine Download PDF

Info

Publication number
US20080287046A1
US20080287046A1 US11/658,213 US65821305A US2008287046A1 US 20080287046 A1 US20080287046 A1 US 20080287046A1 US 65821305 A US65821305 A US 65821305A US 2008287046 A1 US2008287046 A1 US 2008287046A1
Authority
US
United States
Prior art keywords
insert
lever
support
clamping
clamping lever
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.)
Abandoned
Application number
US11/658,213
Other languages
English (en)
Inventor
Pierre Tschampion
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.)
Rollomatic SA
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34932225&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20080287046(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Assigned to ROLLOMATIC SA reassignment ROLLOMATIC SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TSCHAMPION, PIERRE
Publication of US20080287046A1 publication Critical patent/US20080287046A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/04—Cutting-off tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/002—Means to press a workpiece against a guide

Definitions

  • the object of the present invention is a device for clamping a tool insert in a grinding machine, in particular for sharpening it.
  • machining centres performing turning, milling, drilling, boring or other operations use amongst other things tools composed of a high-strength steel body to which there is fixed a tip or insert that has one or more cutting edges.
  • These inserts made from materials of very high hardness and strength, such as tungsten carbide (TC) or titanium carbide, cermets, etc must have cutting edges cut with precision and sharpened within tight tolerances by grinding and finishing so that their use on numeric control machining centres guarantees the result of the programmed machinings.
  • TC tungsten carbide
  • titanium carbide titanium carbide
  • cermets etc
  • the inserts In order to obtain the required precision, it is necessary, during the grinding and sharpening operation, for the insert to be positioned very precisely and held firmly. To this end, the inserts have, from manufacture, a bore that passes right through them and forms a dimensional reference, supplemented by a heel face opposite to the cutting edge.
  • the aim of the present invention is to create a clamping device that positions and fixes an insert in a reliable and rigorous manner with respect to a system of axes related to the grinding machine, so that the grinding and sharpening operations on the cutting edge or edges can be directed by numeric control and therefore be performed at very high speed.
  • the invention aims to permit automated positioning and removal of inserts that are as easy as possible.
  • the present invention concerns a device for clamping a tool insert in a grinding machine, in particular for sharpening it, characterised by a body intended to be mounted on a headstock of the machine and provided with an interchangeable support that has reception surfaces for the insert, and by a clamping lever pivoting in a slot in the body, the said clamping lever being provided with a locking nose and a support shoe, these elements being brought into abutment on the insert by moving the clamping lever under the effect of the movement of a piston housed in the headstock and controlling the lever by means of a cam.
  • the interchangeable support may be an attached piece, fixed to the body and sized so that the reception surfaces position the insert precisely with respect to the axis of the piston.
  • the locking nose of the clamping lever may be conformed so as to engage in a bored hole in the insert and act on the flank of this hole.
  • the interchangeable support may have two reception surfaces for the insert, oriented perpendicular to each other, one of them being perpendicular to the axis of the piston.
  • the support shoe may be an independent piece mounted on the clamping lever by means of a pin allowing a pivoting of the shoe which brings one edge of the latter into abutment against a support surface of the lever when a stop surface of the shoe abuts against a support surface of the insert.
  • the pivoting of the clamping lever in a slot in the body may be effected by a cylindrical pin engaged in an oblong hole in the cheeks of the body, so as to allow a combined rotation and translation movement of the clamping lever with respect to the body.
  • the cam may be fixed at the end of the piston of the headstock and comprise a profile with a notch extended on each side by a ramp, these profile elements cooperating with a rear head of the lever.
  • a measuring device comprising a position sensor may be associated with the body of the device, so as to engage in a bore of the insert held clamped by the lever, in order to detect its exact position and control the grinding operations, the cutting edge or edges of the inserts being located with respect to the said bore.
  • FIG. 1 is a view, in lateral perspective and plan view, of the clamping device
  • FIG. 2 is a view in section of this device along a vertical plane passing through the axis of the headstock, to an enlarged scale, and
  • FIG. 3 is a view in section similar to that in FIG. 2 , showing the device in the clamped position on an insert.
  • the device is mounted on a work-holder headstock 1 of a grinding machine whose tools are controlled so as to be able to attack the parts to be ground on an insert blank 2 , for example in the form of a semicircular disc.
  • the main part of the device is a body 3 having the general shape of a rectangular parallelepiped with one end with pyramidal faces 4 at its front end.
  • This piece has, throughout its length, a slot 5 along a vertical plane in its axis of symmetry, opening out in a bore 6 which allows the engagement of the cylindrical barrel 7 of the headstock 1 .
  • the body 3 is fixed to the barrel 7 by screws 8 engaged in corresponding holes that pass through the two cheeks of the body 3 separated by the slot 5 .
  • An interchangeable support 9 adapted to the dimensions of the inserts 2 to be machined is fixed under the body 3 .
  • This piece has two insert reception faces 10 and 11 , the exact arrangement of which will be explained below, and is arranged to cooperate with a position sensor 20 actuated by a measuring device 12 , for example of the Renishaw type, in order to locate the exact position of the insert clamped in the device and to control the grinding.
  • a clamping lever 13 which is provided with a U-shaped support shoe 14 and whose cheeks are engaged on each side of the front part of the lever 13 , in the form of a nose 15 .
  • FIGS. 2 and 3 show the arrangement of the interchangeable support 9 and the control of the clamping lever 13 .
  • the device will comprise a set of interchangeable supports 9 adjusted to the dimensions of various inserts.
  • the inserts to be machined, sharpened or cut can be of variable dimensions, for example with a diameter from 6 to 32 mm and a thickness from 2 to 8 mm.
  • the mid-plane of the insert it is necessary for the mid-plane of the insert to be positioned in line with the axis of the headstock 1 . It is therefore necessary for the interchangeable supports 9 to constitute a precise positioning device.
  • each interchangeable support has a bore 19 for engaging the position sensor 12 , this bore opening out in the support face 10 which, with the heel face 11 perpendicular to the axis of the headstock, specifies the positioning of the insert.
  • the bore 19 is situated in line with a bore 27 of the insert, which represents its positioning reference.
  • the two surfaces 10 and 11 are adjusted according to the dimensions of the insert, the heel being perpendicular to the axis of the headstock 3 and the face 10 perpendicular to the plane of symmetry of the device, and therefore parallel to the axis of the headstock.
  • FIGS. 2 and 3 The mounting and control of the clamping lever 13 result from FIGS. 2 and 3 .
  • This lever is engaged and guided in the slot 5 , and its axis 22 housed in oblong holes 23 in the cheeks of the body 3 .
  • the lever At its front end the lever has a nose 15 conformed so as to be able to engage halfway into the bore 23 of the insert blank 2 .
  • the support shoe 14 in the form of a U and held on the lever 13 by a pin 24 , is arranged with a pressing face 25 and a support face 26 which, in the active position ( FIG. 3 ), transmit a sufficient clamping force to the insert to fix it and allow the grinding operations.
  • the geometry of these elements is arranged so that the pin 24 in principle undergoes no stress.
  • the lever 13 At its rear end the lever 13 has a head 28 which cooperates with a given profile of a cam 32 engaged in the slot 5 in the body 3 .
  • This profile comprises two ramps 30 and 31 and between them a notch 29 adjusted to the head 28 of the lever 13 .
  • the cam 32 is fixed by a screw 33 in a vertical diametral slot in an end piece 34 fixed to the end of the piston 35 of a cylinder acting inside the barrel 7 of the headstock 1 .
  • FIG. 2 illustrates the release position.
  • the piston 35 is in the advanced position.
  • the cam 32 by means of the ramp 30 , holds the lever 13 in a position in which the nose 15 is released from the support 9 .
  • An insert 2 can be placed on the support or raised from the latter.
  • FIG. 3 illustrates the position reached when the piston 35 has been withdrawn.
  • the end piece 34 has moved the can 32 parallel to itself so that the head 28 of the lever 13 has been raised by the ramp 31 .
  • the nose 15 has engaged in the bore 27 , pressing the insert 2 against the heel 11 whilst the shoe 14 , pressed by the face 25 of the lever and bearing through its face 26 , on the insert, presses the latter firmly on the face 10 of the interchangeable support.
  • the oblong holes 23 allow a combined translation and pivoting movement of the lever 13 .
  • the slope of the ramp 31 of the cam provides multiplication of the vertical force exerted by the shoe 14 with respect to the movement force of the piston 35 . It is possible to obtain degrees of multiplication of the forces of 2 to 5, so that the scope of use of the device is extremely wide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Gripping On Spindles (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
US11/658,213 2004-07-30 2005-07-12 Device for Clamping a Tool Insert in a Grinding Machine Abandoned US20080287046A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04405487.2 2004-07-30
EP04405487A EP1621281A1 (de) 2004-07-30 2004-07-30 Schneidplattenklemmvorrichtung in einer Schleifmaschine
PCT/CH2005/000396 WO2006010281A1 (fr) 2004-07-30 2005-07-12 Dispositif de serrage d’une plaquette d’outil dans une machine d’affûtage

Publications (1)

Publication Number Publication Date
US20080287046A1 true US20080287046A1 (en) 2008-11-20

Family

ID=34932225

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/658,213 Abandoned US20080287046A1 (en) 2004-07-30 2005-07-12 Device for Clamping a Tool Insert in a Grinding Machine

Country Status (10)

Country Link
US (1) US20080287046A1 (de)
EP (2) EP1621281A1 (de)
JP (1) JP2008508106A (de)
KR (1) KR20070035109A (de)
CN (1) CN100506473C (de)
AT (1) ATE405372T1 (de)
DE (1) DE602005009222D1 (de)
IL (1) IL180920A (de)
TW (1) TW200607601A (de)
WO (1) WO2006010281A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101196002B1 (ko) 2012-02-15 2012-10-30 주식회사 세한코리아 면취용 철판 클램핑장치
CN105328534A (zh) * 2015-11-28 2016-02-17 渝北区千里马模具加工厂 圆台形橡胶工件去毛刺用装置
CN106112597A (zh) * 2016-08-12 2016-11-16 无锡欧玛森远洋工程设备有限公司 一种自动夹紧锯床

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5360805B2 (ja) * 2008-10-30 2013-12-04 日立ビアメカニクス株式会社 工具位置決め装置
CN101863036A (zh) * 2010-05-09 2010-10-20 俞建峰 气压驱动机器人工具交换装置
CN102513846B (zh) * 2011-12-29 2013-12-11 济南二机床集团有限公司 一种自动锁紧定位装置
KR101500842B1 (ko) * 2013-07-02 2015-03-10 김용식 바이트 장착모듈 및 이를 포함하는 가공장치
CN103465163A (zh) * 2013-09-16 2013-12-25 河南富耐克超硬材料股份有限公司 一种用于磨削刀具的夹具
CN104057369B (zh) * 2014-07-08 2016-08-31 成都美奢锐新材料有限公司 磨削数控刀片的夹具
CN104608178A (zh) * 2015-02-11 2015-05-13 竞陆电子(昆山)有限公司 精准裁切裁板机
CN107283231B (zh) * 2016-04-05 2023-05-16 王华江 磨刃设备的夹紧定位装置及夹紧定位方法
CN106001642B (zh) * 2016-07-25 2018-01-19 无锡市曙光高强度紧固件有限公司 一种加工五金件的车床
CN108326678A (zh) * 2018-04-04 2018-07-27 湖州旭源电气科技有限公司 一种便于调节角度的汽车零部件用打磨装置
CN111098125B (zh) * 2020-02-27 2021-05-18 力锋精密工具（浙江）有限公司 一种硬质合金车刀刀头更换装置
CN112427664B (zh) * 2020-10-28 2022-05-17 奇锋金属科技有限公司 一种车刀紧固组件

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618931A (en) * 1970-01-19 1971-11-09 Leland F Blatt Cam wedge power clamp
US4055869A (en) * 1975-12-17 1977-11-01 Kabushiki Kaisha Komatsu Seisakusho Clamping and cutting apparatus
US4267669A (en) * 1980-01-21 1981-05-19 Spencer C. Schantz Method and apparatus for grinding small cutting blades
US5100268A (en) * 1989-06-15 1992-03-31 Mitsubishi Materials Corporation Insert clamped tool
US5685672A (en) * 1994-05-27 1997-11-11 Sandvik Ab Toolholder for indexable inserts
US5700182A (en) * 1995-05-25 1997-12-23 Dunbar & Miller Apparatus and method for automated honing of elongated straight-edged cutting blades
US5921847A (en) * 1997-09-24 1999-07-13 Laflamme; Robert P. Grinding fixture and method of remanufacturing tool inserts
US6176649B1 (en) * 1998-05-14 2001-01-23 Iscar Ltd. toolholder
US6250854B1 (en) * 1998-09-03 2001-06-26 Iscar Ltd. Holder blade and insert pocket opener
US20020110429A1 (en) * 2001-01-30 2002-08-15 Sture Sjoo Tool holder having an insert seat with an elongated slot forming an extension of the seat
US6553880B2 (en) * 1996-09-16 2003-04-29 Sarcos, Lc Micromachining system
US6682273B2 (en) * 1999-04-26 2004-01-27 Sandvik Ab Tool holder having a clamp plate for transmitting clamping forces from a clamping arm to a cutting insert

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS543271Y2 (de) * 1972-04-26 1979-02-14
JPS5844154U (ja) * 1981-09-18 1983-03-24 日本特殊陶業株式会社 スロアウエイチツプの溝入れ研削治具
JPS5851945U (ja) * 1981-09-30 1983-04-08 日立精機株式会社 チツプの研削装置
CA1242313A (en) * 1984-12-07 1988-09-27 Kennametal Inc TOOL CARTRIDGE AND TOOL HOLDER, FOR AUTOMATIC TOOL LOADER
JPH0340517Y2 (de) * 1985-08-27 1991-08-26
SU1329917A1 (ru) * 1985-11-05 1987-08-15 Предприятие П/Я А-7240 Универсальный сборный резец
CN86209667U (zh) * 1986-11-28 1987-12-12 江门市二轻机械厂 一种抛光机夹具
SU1726150A1 (ru) * 1988-11-21 1992-04-15 Научно-производственное объединение по механизации и автоматизации производства машин для хлопководства "Технолог" Резец
JPH0294053U (de) * 1989-01-13 1990-07-26
JP2524988Y2 (ja) * 1990-09-17 1997-02-05 光洋機械工業株式会社 研削盤のワーククランプ装置
JP2872391B2 (ja) * 1990-11-19 1999-03-17 日本特殊陶業株式会社 チップ加工用治具
FR2684035B1 (fr) * 1991-11-26 1996-07-05 Createc Rollers Palier pour axe flottant, en particulier lunette support de piece.
CN2130643Y (zh) * 1992-05-30 1993-04-28 余承赋 自支承自调式压紧装置

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618931A (en) * 1970-01-19 1971-11-09 Leland F Blatt Cam wedge power clamp
US4055869A (en) * 1975-12-17 1977-11-01 Kabushiki Kaisha Komatsu Seisakusho Clamping and cutting apparatus
US4267669A (en) * 1980-01-21 1981-05-19 Spencer C. Schantz Method and apparatus for grinding small cutting blades
US5100268A (en) * 1989-06-15 1992-03-31 Mitsubishi Materials Corporation Insert clamped tool
US5685672A (en) * 1994-05-27 1997-11-11 Sandvik Ab Toolholder for indexable inserts
US5700182A (en) * 1995-05-25 1997-12-23 Dunbar & Miller Apparatus and method for automated honing of elongated straight-edged cutting blades
US6553880B2 (en) * 1996-09-16 2003-04-29 Sarcos, Lc Micromachining system
US5921847A (en) * 1997-09-24 1999-07-13 Laflamme; Robert P. Grinding fixture and method of remanufacturing tool inserts
US6176649B1 (en) * 1998-05-14 2001-01-23 Iscar Ltd. toolholder
US6250854B1 (en) * 1998-09-03 2001-06-26 Iscar Ltd. Holder blade and insert pocket opener
US6682273B2 (en) * 1999-04-26 2004-01-27 Sandvik Ab Tool holder having a clamp plate for transmitting clamping forces from a clamping arm to a cutting insert
US20020110429A1 (en) * 2001-01-30 2002-08-15 Sture Sjoo Tool holder having an insert seat with an elongated slot forming an extension of the seat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101196002B1 (ko) 2012-02-15 2012-10-30 주식회사 세한코리아 면취용 철판 클램핑장치
CN105328534A (zh) * 2015-11-28 2016-02-17 渝北区千里马模具加工厂 圆台形橡胶工件去毛刺用装置
CN106112597A (zh) * 2016-08-12 2016-11-16 无锡欧玛森远洋工程设备有限公司 一种自动夹紧锯床

Also Published As

Publication number Publication date
EP1796871B9 (de) 2009-03-25
TW200607601A (en) 2006-03-01
DE602005009222D1 (de) 2008-10-02
EP1796871A1 (de) 2007-06-20
KR20070035109A (ko) 2007-03-29
WO2006010281A1 (fr) 2006-02-02
IL180920A0 (en) 2007-07-04
ATE405372T1 (de) 2008-09-15
JP2008508106A (ja) 2008-03-21
EP1796871B1 (de) 2008-08-20
IL180920A (en) 2010-11-30
CN100506473C (zh) 2009-07-01
CN1993203A (zh) 2007-07-04
EP1621281A1 (de) 2006-02-01

Similar Documents

Publication Publication Date Title
US20080287046A1 (en) Device for Clamping a Tool Insert in a Grinding Machine
US12385702B2 (en) Jig for manufacturing of firearm lower receiver
US4575293A (en) Machine tool holder having opposed ramp members
US9630299B1 (en) Master jaw assembly
US7600951B2 (en) Quick change holder for cutting tool
CZ293286B6 (cs) Obráběcí nástroj
US20160089767A1 (en) Vise jaw base plate adapters including soft jaws
US3662445A (en) Lathe tools
US4270315A (en) Fixture for holding a twist drill to be reground
JP5117380B2 (ja) 切削工具用のクイックチェンジホルダ
US6393713B1 (en) Gage for determining the true dead center of a workpiece on a lathe or milling machine from each tool pocket in the machine tool turret or cross slide
CN210254305U (zh) 镗刀
RU2348504C1 (ru) Устройство для обработки поверхностным пластическим деформированием
US3939539A (en) Cutting tool holder
CN217914354U (zh) 机床刀具微修磨装置
KR100560604B1 (ko) 바닥 평면과 모서리를 동시에 가공하는 공구 및 이를사용한 가공 공정
US8316743B2 (en) Quick change tool holder
US3845589A (en) Gun drill and bore grinding fixture
EP2269753A1 (de) Werkzeugvorrichtung mit verschiedenen Werkzeugklingen
US5065733A (en) Dressing tool for form dressing of a grinding wheel
CN220901917U (zh) 一种数控车床使用的车削刀具
CN215902738U (zh) 一种便于拆卸的车刀装置
US3183634A (en) Fixture for grinding spade drills or the like
CN216463066U (zh) 一种适用于钻床加工斜孔的工装夹具
CN213319016U (zh) 治具

Legal Events

Date Code Title Description
AS Assignment

Owner name: ROLLOMATIC SA, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TSCHAMPION, PIERRE;REEL/FRAME:018825/0943

Effective date: 20050715

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION