GB1334371A - Control of machine tools - Google Patents

Control of machine tools

Info

Publication number
GB1334371A
GB1334371A GB5269770A GB1334371DA GB1334371A GB 1334371 A GB1334371 A GB 1334371A GB 5269770 A GB5269770 A GB 5269770A GB 1334371D A GB1334371D A GB 1334371DA GB 1334371 A GB1334371 A GB 1334371A
Authority
GB
United Kingdom
Prior art keywords
cutting
machine tool
tool
servomotor
control
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.)
Expired
Application number
GB5269770A
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.)
Consiglio Nazionale delle Richerche CNR
Original Assignee
Consiglio Nazionale delle Richerche CNR
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 Consiglio Nazionale delle Richerche CNR filed Critical Consiglio Nazionale delle Richerche CNR
Publication of GB1334371A publication Critical patent/GB1334371A/en
Expired legal-status Critical Current

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
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
    • B23Q17/0985—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring temperature
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine 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
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
    • B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
    • 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
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
    • B23Q17/0971—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining by measuring mechanical vibrations of parts of 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0995—Tool life management
    • 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
    • G05B2219/37268—Tool workpiece junction, thermoelectric interface
    • 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
    • G05B2219/37348—Power, wattmeter voltage times current
    • 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
    • G05B2219/37427—Detected with thermocouple
    • 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
    • G05B2219/37431—Temperature
    • 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
    • G05B2219/37434—Measuring vibration of machine or workpiece or tool
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49073—Adapt machining parameters so as to keep temperature constant
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49074—Control cutting speed
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49075—Control depth of cut
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49092—Vary, change controlled parameter as function of detected power

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)

Abstract

1334371 Machine tool control CONSIGLIO NAZIONALE DELLE RICERCHE 5 Nov 1970 52697/70 Heading B3B [Also in Divisions G1 and G3] In a method of controlling a machine tool an electric signal is generated which is representative of the temperature of the region of contact between a cutting tool U and a workpiece P and the vibration of the cutting tool is also detected, and one of the cutting parameters of the machine tool is adjusted to reduce the vibrations when they exceed a predetermined value, and at least one other cutting parameter is adjusted in dependence upon the said electric signal to maintain the said temperature substantially constant at a predetermined value. Apparatus to carry out the said method includes a thermocouple formed by a junction between the cutting tool and the workpiece and including a mercury collector D having a fixed and a rotatable electrode. The said electric signal is produced by the thermoelectric e.m.f. of the thermocouple. The cutting parameters controlled are, the cutting speed which generates the said signal which is fed to a regulator 3 on which an optimum required temperature is set, and which operates through servomotor 4 and hydraulic actuator 5 to continuously control the speed of the machine tool spindle 6; the rate of cutter feed which, if excessive produces vibrations which are sensed by a transducer 7 and fed to a detecting apparatus 9, via an amplifier 8, to operate through a servomotor 10 and actuator 11 to control the cutter feed; the depth of cut by means of a servomotor 15 is actuated dependent on the electrical power consumption of the machine tool; and the overall power consumption of the machine tool is monitored by a wattmeter 12 having a pre-set optimum value and operating through an electric motor 13 and the hydraulic actuator 5 to vary the speed of the spindle 6. A timer device 14 registers the accumulated time a cutting tool U has been in use. For each tool an optimum temperature and useful life is ascertained for setting the parameters.
GB5269770A 1970-11-05 1970-11-05 Control of machine tools Expired GB1334371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5269770 1970-11-05

Publications (1)

Publication Number Publication Date
GB1334371A true GB1334371A (en) 1973-10-17

Family

ID=10464926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5269770A Expired GB1334371A (en) 1970-11-05 1970-11-05 Control of machine tools

Country Status (1)

Country Link
GB (1) GB1334371A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140951A (en) * 1983-06-01 1984-12-05 Werkzeugmasch Okt Veb Apparatus and method for monitoring machining conditions of a machine tool
EP1281452A3 (en) * 1998-10-19 2004-09-01 Mika Virtanen A sheet fabrication center and methods therefor of optimally fabricating worksheets
CN102873353A (en) * 2012-10-15 2013-01-16 哈尔滨工业大学 Intelligent cutter with micro three-way cutting force measurement system
CN103223625A (en) * 2012-01-31 2013-07-31 东芝机械株式会社 Method of measuring temperature in cutting process
CN105751008A (en) * 2016-05-05 2016-07-13 南京航空航天大学 Method for measuring temperature of polycrystalline diamond cutter for turning titanium based compound material
CN105973494A (en) * 2016-05-05 2016-09-28 盐城工学院 Method for measuring temperature of turning titanium matrix composite with coated cutter
CN106271880A (en) * 2016-09-20 2017-01-04 天津大学 A kind of measurement milling process milling cutter and the measurement system of workpiece temperature simultaneously
CN107250745A (en) * 2015-02-25 2017-10-13 株式会社山本金属制作所 Temperature measuring equipment
WO2018219477A1 (en) * 2017-06-02 2018-12-06 Technoform Tailored Solutions Holding Gmbh Flying saw and fixed saw for cutting extruded profiles and methods of use
RU2734315C1 (en) * 2020-05-14 2020-10-15 Владимир Владимирович Скакун Method of calibration natural thermocouple cutter-part
CN114728429A (en) * 2019-10-03 2022-07-08 科尔伯纸巾股份公司 Cutting machine for products made of cellulosic material and relative method
RU2792519C1 (en) * 2022-01-12 2023-03-22 Владимир Владимирович Скакун Method for calibrating an natural thermocouple cutter-part

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140951A (en) * 1983-06-01 1984-12-05 Werkzeugmasch Okt Veb Apparatus and method for monitoring machining conditions of a machine tool
EP1281452A3 (en) * 1998-10-19 2004-09-01 Mika Virtanen A sheet fabrication center and methods therefor of optimally fabricating worksheets
CN103223625B (en) * 2012-01-31 2015-11-18 东芝机械株式会社 The measuring method of machining temperature
US9518871B2 (en) 2012-01-31 2016-12-13 Toshiba Kikai Kabushiki Kaisha Method of measuring temperature in cutting process
CN103223625A (en) * 2012-01-31 2013-07-31 东芝机械株式会社 Method of measuring temperature in cutting process
CN102873353B (en) * 2012-10-15 2015-02-18 哈尔滨工业大学 Intelligent cutter with micro three-way cutting force measurement system
CN102873353A (en) * 2012-10-15 2013-01-16 哈尔滨工业大学 Intelligent cutter with micro three-way cutting force measurement system
CN107250745A (en) * 2015-02-25 2017-10-13 株式会社山本金属制作所 Temperature measuring equipment
EP3264058A4 (en) * 2015-02-25 2018-10-31 Yamamoto Metal Technos Co. Ltd. Temperature measurement device
CN105751008A (en) * 2016-05-05 2016-07-13 南京航空航天大学 Method for measuring temperature of polycrystalline diamond cutter for turning titanium based compound material
CN105973494A (en) * 2016-05-05 2016-09-28 盐城工学院 Method for measuring temperature of turning titanium matrix composite with coated cutter
CN105751008B (en) * 2016-05-05 2017-10-27 南京航空航天大学 A kind of measuring method of polycrystal diamond cutter turning titanium matrix composite temperature
CN105973494B (en) * 2016-05-05 2018-10-09 盐城工学院 A kind of measurement method of coated cutting tool turning titanium matrix composite temperature
CN106271880A (en) * 2016-09-20 2017-01-04 天津大学 A kind of measurement milling process milling cutter and the measurement system of workpiece temperature simultaneously
WO2018219477A1 (en) * 2017-06-02 2018-12-06 Technoform Tailored Solutions Holding Gmbh Flying saw and fixed saw for cutting extruded profiles and methods of use
CN114728429A (en) * 2019-10-03 2022-07-08 科尔伯纸巾股份公司 Cutting machine for products made of cellulosic material and relative method
RU2734315C1 (en) * 2020-05-14 2020-10-15 Владимир Владимирович Скакун Method of calibration natural thermocouple cutter-part
RU2792519C1 (en) * 2022-01-12 2023-03-22 Владимир Владимирович Скакун Method for calibrating an natural thermocouple cutter-part

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee