SG64367A1 - Tool changing method for machining center and apparatus for carrying out the same - Google Patents

Tool changing method for machining center and apparatus for carrying out the same

Info

Publication number
SG64367A1
SG64367A1 SG1996008734A SG1996008734A SG64367A1 SG 64367 A1 SG64367 A1 SG 64367A1 SG 1996008734 A SG1996008734 A SG 1996008734A SG 1996008734 A SG1996008734 A SG 1996008734A SG 64367 A1 SG64367 A1 SG 64367A1
Authority
SG
Singapore
Prior art keywords
carrying
same
machining center
tool changing
changing method
Prior art date
Application number
SG1996008734A
Other languages
English (en)
Inventor
Norimitsu Araki
Yoshiaki Mase
Yukihiro Sakakibara
Original Assignee
Howa Machinery 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 Howa Machinery Ltd filed Critical Howa Machinery Ltd
Publication of SG64367A1 publication Critical patent/SG64367A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/1554Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/15503Processes characterized by special sequencing of operations or the like, e.g. for optimizing tool changing time or capacity in tool storage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • B23Q3/15713Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle
    • B23Q3/1572Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means
    • B23Q3/15726Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane parallel to the axis of the spindle
    • B23Q3/15733Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane parallel to the axis of the spindle the axis of the stored tools being arranged in the rotating or circulating plane of the storage means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • B23Q3/15713Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle
    • B23Q3/1572Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means
    • B23Q3/15753Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane perpendicular to the axis of the spindle
    • B23Q3/15766Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane perpendicular to the axis of the spindle the axis of the stored tools being arranged perpendicularly to the rotating or circulating plane of the storage means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/1554Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
    • B23Q2003/155414Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
    • B23Q2003/155418Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers the grippers moving together
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/1554Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
    • B23Q2003/155414Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
    • B23Q2003/155425Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable
    • B23Q2003/155428Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable about a common axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/1554Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
    • B23Q2003/155414Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
    • B23Q2003/155425Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable
    • B23Q2003/155435Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable and linearly movable
    • B23Q2003/155439Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable and linearly movable along the pivoting axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/1554Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
    • B23Q2003/155414Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
    • B23Q2003/155453Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers including different gripper configurations for holding differently-configured tools
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T483/00Tool changing
    • Y10T483/10Process
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T483/00Tool changing
    • Y10T483/13Tool changing with control means energized in response to activator stimulated by condition sensor
    • Y10T483/132Responsive to tool identifying information

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Turning (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
SG1996008734A 1995-04-07 1996-04-06 Tool changing method for machining center and apparatus for carrying out the same SG64367A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7108127A JP2865195B2 (ja) 1995-04-07 1995-04-07 マシニングセンタにおける工具交換方法及び装置

Publications (1)

Publication Number Publication Date
SG64367A1 true SG64367A1 (en) 1999-04-27

Family

ID=14476628

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008734A SG64367A1 (en) 1995-04-07 1996-04-06 Tool changing method for machining center and apparatus for carrying out the same

Country Status (9)

Country Link
US (1) US5688214A (ja)
JP (1) JP2865195B2 (ja)
KR (1) KR100217948B1 (ja)
CN (1) CN1070402C (ja)
FR (1) FR2732633B1 (ja)
IT (1) IT1283723B1 (ja)
MY (1) MY111931A (ja)
SG (1) SG64367A1 (ja)
TW (1) TW372900B (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5716310A (en) * 1995-11-01 1998-02-10 Excellon Automation Company Tool change apparatus
JP3516456B2 (ja) * 1996-11-29 2004-04-05 松下電器産業株式会社 部品実装方法および実装機
DE102004031066A1 (de) * 2004-03-03 2005-09-22 Grob-Werke Burkhart Grob E.K. Werkzeugmaschine mit mindestens einer Arbeitsspindel
JP2005309728A (ja) * 2004-04-21 2005-11-04 Fanuc Ltd プログラムによる主軸選択機能を備えた数値制御装置
US20060025510A1 (en) * 2004-08-02 2006-02-02 Dean David M Flame retardant polymer blend and articles thereof
US7775955B1 (en) * 2008-11-04 2010-08-17 Honda Motor Co., Ltd. Cutting tool removal and installation assist device
CN101733488B (zh) * 2010-01-15 2014-04-23 新乡日升数控轴承装备股份有限公司 一种内齿铣齿机刀架
JP5802377B2 (ja) * 2010-11-05 2015-10-28 Dmg森精機株式会社 工作機械の工具交換装置
CN101986225B (zh) * 2010-11-09 2012-06-06 宁波恒威机械有限公司 立式加工中心斗笠式刀库不乱刀的控制方法
JP2012187669A (ja) * 2011-03-10 2012-10-04 Brother Industries Ltd 工具交換装置
JP2012200855A (ja) * 2011-03-28 2012-10-22 Brother Industries Ltd 工作機械及び制御方法
DE102011006811A1 (de) * 2011-04-05 2012-10-11 Deckel Maho Pfronten Gmbh Werkzeug-Handhabungseinrichtung für Werkzeugmaschinen
TWI472401B (zh) * 2012-03-27 2015-02-11 Yieau Chiea Prec Machinery Co Ltd Multi - axis Multi - axis Machining Method
CN103197595B (zh) * 2013-03-13 2015-07-22 上海维宏电子科技股份有限公司 数控系统中实现超范围刀具号自动替换的加工控制方法
CN103128583B (zh) * 2013-03-13 2016-06-08 上海维宏电子科技股份有限公司 数控系统基于刀库的刀盘刀具号实现自动换刀控制的方法
JP5873135B2 (ja) * 2014-06-19 2016-03-01 ファナック株式会社 工具格納位置の変更を可能としたマガジン旋回式工具交換手段
CN104057342B (zh) * 2014-07-08 2017-01-04 芜湖瑞精机床有限责任公司 一种适用于盘式刀库的换刀控制方法及系统
EP3135428B1 (en) 2014-09-05 2018-10-24 Yamazaki Mazak Corporation Tool magazine and tool exchange device
CN107000145A (zh) * 2014-12-31 2017-08-01 深圳市配天智造装备股份有限公司 数控机床及数控机床的快速换刀方法
WO2017113318A1 (zh) * 2015-12-31 2017-07-06 深圳配天智能技术研究院有限公司 一种自动换刀方法及数控机床
CN109396915A (zh) * 2018-12-12 2019-03-01 上海西格码机床有限公司 一种加工中心大小刀的换刀处理方法
CN114434534B (zh) * 2020-10-30 2024-03-15 深圳市大族数控科技股份有限公司 钻孔机取放刀方法及取放刀装置
CN114055225A (zh) * 2021-12-08 2022-02-18 广东普拉迪科技股份有限公司 一种用于高架式五轴龙门加工中心的换刀驱动机构
CN114367851A (zh) * 2022-02-16 2022-04-19 深圳领威科技有限公司 换刀方法、装置及加工中心

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511865B1 (ja) * 1968-09-30 1976-01-21
US3817391A (en) * 1972-05-22 1974-06-18 Kearney & Trecker Corp Tool storage magazine
US4117586A (en) * 1976-04-12 1978-10-03 Hitachi Seiki Co., Ltd. Machine tool with automatic tool changer
JPS5315680A (en) * 1976-07-28 1978-02-13 Toyoda Mach Works Ltd Device for replacing tools automatically
JPS5316977A (en) * 1976-07-30 1978-02-16 Toyoda Mach Works Ltd Automatic tool exchanging device
JPS5866640A (ja) * 1981-10-12 1983-04-20 Fanuc Ltd 自動工具交換装置
JPS60114437A (ja) * 1983-11-21 1985-06-20 Toyoda Mach Works Ltd 大径工具交換装置を備えた工作機械
US4739488A (en) * 1984-09-21 1988-04-19 Brother Kogyo Kabushiki Kaisha Machine tool with tool selection and work sequence determination
US4567659A (en) * 1985-04-25 1986-02-04 Kitamura Machinery Co., Ltd. Tool size measuring apparatus for NC machine tools
JPH07106521B2 (ja) * 1986-08-20 1995-11-15 豊和工業株式会社 マシニングセンタ−等の工具交換装置
JP2678793B2 (ja) * 1989-06-30 1997-11-17 株式会社日平トヤマ 工具交換制御方法
JPH04310341A (ja) * 1991-04-08 1992-11-02 Matsuura Kikai Seisakusho:Kk 工具貯留装置
JP3433463B2 (ja) * 1993-02-19 2003-08-04 豊和工業株式会社 工作機械のツールマガジン装置
JPH0740189A (ja) * 1993-07-23 1995-02-10 Jeol Ltd 切削加工データの工具まとめ処理方式

Also Published As

Publication number Publication date
FR2732633A1 (fr) 1996-10-11
ITMI960676A0 (ja) 1996-04-05
CN1142424A (zh) 1997-02-12
US5688214A (en) 1997-11-18
JP2865195B2 (ja) 1999-03-08
CN1070402C (zh) 2001-09-05
JPH08276336A (ja) 1996-10-22
FR2732633B1 (fr) 1998-07-17
MY111931A (en) 2001-02-28
IT1283723B1 (it) 1998-04-30
ITMI960676A1 (it) 1997-10-05
TW372900B (en) 1999-11-01
KR100217948B1 (ko) 1999-09-01

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