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WO2008136556A1 - Appareil et procédé de mesure de la longueur d'un outil de coupe - Google Patents

Appareil et procédé de mesure de la longueur d'un outil de coupe Download PDF

Info

Publication number
WO2008136556A1
WO2008136556A1 PCT/KR2007/004358 KR2007004358W WO2008136556A1 WO 2008136556 A1 WO2008136556 A1 WO 2008136556A1 KR 2007004358 W KR2007004358 W KR 2007004358W WO 2008136556 A1 WO2008136556 A1 WO 2008136556A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
length
measurement
cutting
acceptance part
Prior art date
Application number
PCT/KR2007/004358
Other languages
English (en)
Inventor
Tae-Kyun Kim
Original Assignee
Sinjin M.T.Tech 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 Sinjin M.T.Tech Co., Ltd. filed Critical Sinjin M.T.Tech Co., Ltd.
Publication of WO2008136556A1 publication Critical patent/WO2008136556A1/fr

Links

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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
    • B23Q17/2457—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
    • B23Q17/2457—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of tools
    • B23Q17/2461—Length
    • 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
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
    • B23Q15/28—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece with compensation for tool wear
    • 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
    • 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
    • B23Q17/248—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves using special electromagnetic means or methods
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical 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
    • G05B19/404—Numerical 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 characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical 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
    • G05B19/406—Numerical 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 characterised by monitoring or safety
    • G05B19/4065—Monitoring tool breakage, life or condition
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37281—Laser range finder

Definitions

  • the present invention relates to an apparatus and method for measuring a length of a cutting tool, and more particularly, to an apparatus and method for measuring a length of a cutting tool, for automatically measuring the length of the cutting tool by scanning a laser beam lengthwise of the tool outside or inside a machine and measuring a current value thereof.
  • cutting tools used for machine tools suffer from frictional action with workpieces during processing.
  • tool noses suffer from abrasion while cutting tools change in length or are destroyed due to an external main cause during processing.
  • fatigue tools cause errors as much as abrasion length in processing workpieces.
  • it is required to periodically measure a tool length while processing workpieces and compensate abrasion length.
  • Meantime there are several methods for conventional cutting-tool length measurement. Among them, generally, a method using a laser measurement unit or a method using a limit switch and a manual measurement method are being used.
  • the measurement method using laser has a drawback that it is required to scan a laser beam in a direction of radius of tool to perform measurement, transporting a shaft with tool. Installation within the machine deteriorates a machine activation efficiency.
  • Conventional measurement apparatus is installed within a machine and hence, has a drawback that environment is so poor because of power line and signal line processing, processing of air line for cleaning a contact part, cleaning a contacted part, installation part's chip, cutting oil, etc., and the risk of damage caused by malfunction exists always.
  • the present invention is directed to an apparatus and method for measuring a length of a cutting tool that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
  • An object of the present invention is to provide an apparatus and method for measuring a length of a cutting tool, for avoiding reducing a machine activation efficiency and being able to real-time utilize tool's damage and NC machine' s tool information resulting from measurement by installing the measurement apparatus inside a given machine, transporting a machine shaft, and performing measurement.
  • Another object of the present invention is to provide an apparatus and method for measuring a length of a cutting tool, for reducing occurrence of failure caused by erroneous input to the measurement apparatus by installing the measurement apparatus, which is a means for achieving the object, outside a machine, scanning laser lengthwise of the tool, and transceiving NC machine's tool information to DNC.
  • an apparatus for measuring a length of a cutting tool in which a tool acceptance part is installed on a base frame, a plurality of cutting tools are held by tool holders installed at a magazine within the tool acceptance part, a transport rail 11 is fixed and installed on the base frame at an opposite side of the tool acceptance part, a transporter is installed on the transport rail, and a main shaft is installed in front of the transporter.
  • the apparatus is characterized by being configured to install a laser sensor in a predetermined position of an inner wall surface of the tool acceptance part.
  • a set position of a measurement apparatus can be diversified since measurement can be performed without moving a machine's shaft by scanning laser lengthwise of a tool.
  • the present invention can improve machine activation efficiency, avoid a mechanical error upon measurement, and avoid a measurement error caused by a calculator since information is measured and forwarded separately from machine's cutting process.
  • the present invention has an effect of minimizing a failure of processing caused by erroneous tool length upon work with more accurate measurement of tool length.
  • the present invention provides an effect of, when measurement is performed outside a cutting processing space without shaft transport, transmitting tool information on a cutting processing machine with NC through network, receiving tool number and cutting tool length information to measure tool information, comparing the measurement result with a received tool length, and transmitting the comparison result to NC, thereby avoiding troublesomeness causing a user to separately input tool information such that machine's activation can be made efficient .
  • FIG. 1 is a perspective view illustrating a whole construction according to an exemplary embodiment of the present invention
  • FIG. 2 is a plane view illustrating a whole construction according to an exemplary embodiment of the present invention
  • FIG. 3 is an exploded view illustrating a part "A" of FIG. 2;
  • FIG. 4 is a perspective view illustrating a state viewed from a bottom of an apparatus according to an exemplary embodiment of the present invention
  • FIG. 5 is an exploded view illustrating a part "B" of FIG. 4;
  • FIGS. 6A to 6C are cut-away views illustrating key parts showing measurement states according to an exemplary embodiment of the present invention
  • FIG. 7 is a block diagram illustrating a method for transceiving a measurement state as tool information to NC by network according to an exemplary embodiment of the present invention.
  • Tool acceptance part 20a Inner wall surface
  • Transporter 60 Main shaft 100: Laser sensor 101: Light emitting part
  • Light receiving part 200 Tool holder
  • Cutting tool 300 Light emitter 400: Light receiver
  • FIG. 1 is a perspective view illustrating a whole construction according to an exemplary embodiment of the present invention.
  • FIG. 2 is a plane view illustrating a whole construction according to an exemplary embodiment of the present invention.
  • FIG. 3 is an exploded view illustrating a part "A" of FIG. 2.
  • FIG. 4 is a perspective view illustrating a state viewed from a bottom of an apparatus according to an exemplary embodiment of the present invention.
  • FIG. 5 is an exploded view illustrating a part "B" of FlG. 4.
  • FIGS. 6A to 6C are cut-away views illustrating key parts showing measurement states according to an exemplary embodiment of the present invention.
  • FIG. 1 is a perspective view illustrating a whole construction according to an exemplary embodiment of the present invention.
  • FIG. 2 is a plane view illustrating a whole construction according to an exemplary embodiment of the present invention.
  • FIG. 3 is an exploded view illustrating a part "A" of FIG. 2.
  • FIG. 4 is a perspective view illustrating
  • FIG. 7 is a block diagram illustrating a method for transceiving a measurement state as tool information to NC by network according to an exemplary embodiment of the present invention. A description of a concept of an apparatus for measuring a length of a cutting tool that is to be proposed in the present invention will be made.
  • the present invention provides an apparatus for measuring a length of a cutting tool, wherein the apparatus is configured to install a laser device lengthwise of the accepted cutting tool, not inside, outside a machine in which cutting processing is performed and measure the length of the tool.
  • FIG. 2 A whole construction of an apparatus for measuring a length of a cutting tool according to an exemplary embodiment of the present invention is shown as in the accompanying FIG. 2.
  • the length measurement apparatus to be realized in the present invention is characterized in that a tool acceptance part 20 is installed on a base frame 10, a plurality of cutting tools 201 are held by tool holders 200 mounted at a magazine 30 within the tool acceptance part 20, a transport rail 11 is fixed and installed on the base frame 10 at an opposite side of the tool acceptance part 20, a transporter 50 is mounted on the transport rail 11, a main shaft 60 is installed in front of the transporter, a laser sensor 100 is installed in a predetermined position of an inner wall surface 20a of the tool acceptance part 20, desirably, in a horizontal position lengthwise of the cutting tool 201 mounted at the magazine 30.
  • an installation position of the laser sensor 100 is characterized in that the laser sensor 100 is installed in a predetermined position of the inner wall surface 20a of the tool acceptance part 20, desirably, in a horizontal position lengthwise of the cutting tool 201 mounted at the magazine 30.
  • FIGS. 6A to 6C show a conceptual view for laser measurement. They are characterized in that the light emitting part 101 is positioned in horizontal with a center lengthwise of the cutting tool 201 mounted at the tool holder 200 to emit laser horizontally and the light receiving part 102 is configured to receive laser at upper part near the light emitting part 101.
  • the measurement method according to the present invention is characterized in that separate input is not required because NC device's tool information is received by network and used.
  • the apparatus has algorithm for, when a measured tool is a new tool, receiving tool information inputted to a machine upon initial measurement, measuring a current value, setting the current value as a basic length, setting the current value as a proper value of the tool, calling a designated tool according to a tool exchange command, and comparing a current value storing initial length information on the called tool with the measured current value to calculate a length.
  • the apparatus has algorithm for determining any damage.
  • a permissible range is set according to algorithm set by kinds of tool. Out of this range, it is determined whether damage occurs, the determination result is transmitted to machine's NC, and a machine controls the exchanged tool not to perform processing.
  • a whole structure of an NC processing machine and a method for receiving NC device's tool information are a technology common or well known to a person having an ordinary knowledge in the art and its particular detailed description will be omitted.
  • Non-described reference numeral 40 denotes a rotary unit .
  • the present invention can diversify a set position of a measurement apparatus since measurement can be performed without moving a machine's shaft by scanning laser lengthwise of a tool.
  • the present invention can improve machine activation efficiency, avoid a mechanical error upon measurement, and avoid a measurement error caused by a calculator since information is measured and forwarded separately from machine's cutting process.
  • the present invention has an effect of minimizing a failure of processing caused by erroneous tool length upon work with more accurate measurement of tool length.
  • the present invention provides an effect of, when measurement is performed outside a cutting processing space without shaft transport, transmitting tool information on a cutting processing machine with NC through network, receiving tool number and cutting tool length information to measure tool information, comparing the measurement result with a received tool length, and transmitting the comparison result to NC, thereby avoiding troublesomeness causing a user to separately input tool information such that machine's activation can be made efficient .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Cette invention concerne un appareil de mesure de la longueur d'un outil de coupe dans un dispositif de traitement à CN. Dans ledit appareil une partie de réception d'outil est installée sur un châssis, une pluralité d'outils de coupe est retenue par des porte-outils positionnés dans un magasin à l'intérieur de la partie de réception d'outil. Un rail de transport (11) est fixé et positionné sur le châssis sur un côté opposé de celui de la partie de réception d'outil. Un transporteur est positionné sur le rail de transport, et un arbre principal est positionné à l'avant du transporteur. L'appareil est configuré pour installer un capteur laser dans une position prédéterminée d'une surface de paroi interne de la partie de réception d'outil.
PCT/KR2007/004358 2007-05-04 2007-09-07 Appareil et procédé de mesure de la longueur d'un outil de coupe WO2008136556A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0043350 2007-05-04
KR1020070043350A KR20080098102A (ko) 2007-05-04 2007-05-04 절삭공구 길이 측정장치 및 측정방법

Publications (1)

Publication Number Publication Date
WO2008136556A1 true WO2008136556A1 (fr) 2008-11-13

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Country Status (2)

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KR (1) KR20080098102A (fr)
WO (1) WO2008136556A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126164A (zh) * 2011-03-25 2011-07-20 上海交通大学 加工中心换刀误差检测预警装置
JP2014237202A (ja) * 2013-06-10 2014-12-18 中村留精密工業株式会社 砥石マガジンへの砥石の補充誤り検出方法
CN107571031A (zh) * 2017-09-27 2018-01-12 佛山市普拉迪数控科技有限公司 一种气动翻转带自动移夹具机床
EP3357637A4 (fr) * 2015-09-30 2019-05-08 Makino Milling Machine Co., Ltd. Machine-outil

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016106687A1 (fr) * 2014-12-31 2016-07-07 深圳市配天智造装备股份有限公司 Magasin d'outils pour machine à commande numérique
CN107044827B (zh) * 2017-04-17 2023-06-27 杭州市特种设备检测研究院 电梯井道顶部和底坑空间无线检测系统及无线检测方法
CN109108734B (zh) * 2018-09-25 2023-07-18 四川明日宇航工业有限责任公司 铣削类数控机加工刀具主动防错系统及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01210250A (ja) * 1988-02-17 1989-08-23 Fanuc Ltd スキップ位置制御装置
JPH01240251A (ja) * 1988-03-17 1989-09-25 Mazda Motor Corp マシニングセンタの工具確認装置
JPH10138094A (ja) * 1996-11-07 1998-05-26 Niigata Eng Co Ltd 工作機械における工具折損検出方法及び装置
JP2003136372A (ja) * 2001-08-20 2003-05-14 Okuma Corp 工具寸法の自動計測方法及び装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01210250A (ja) * 1988-02-17 1989-08-23 Fanuc Ltd スキップ位置制御装置
JPH01240251A (ja) * 1988-03-17 1989-09-25 Mazda Motor Corp マシニングセンタの工具確認装置
JPH10138094A (ja) * 1996-11-07 1998-05-26 Niigata Eng Co Ltd 工作機械における工具折損検出方法及び装置
JP2003136372A (ja) * 2001-08-20 2003-05-14 Okuma Corp 工具寸法の自動計測方法及び装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126164A (zh) * 2011-03-25 2011-07-20 上海交通大学 加工中心换刀误差检测预警装置
JP2014237202A (ja) * 2013-06-10 2014-12-18 中村留精密工業株式会社 砥石マガジンへの砥石の補充誤り検出方法
EP3357637A4 (fr) * 2015-09-30 2019-05-08 Makino Milling Machine Co., Ltd. Machine-outil
US10926367B2 (en) 2015-09-30 2021-02-23 Makino Milling Machine Co., Ltd. Machine tool
CN107571031A (zh) * 2017-09-27 2018-01-12 佛山市普拉迪数控科技有限公司 一种气动翻转带自动移夹具机床
CN107571031B (zh) * 2017-09-27 2019-04-16 佛山市普拉迪数控科技有限公司 一种气动翻转带自动移夹具机床

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