JPS5531541A - Abnormality detecting system for cutting tool - Google Patents

Abnormality detecting system for cutting tool

Info

Publication number
JPS5531541A
JPS5531541A JP10244378A JP10244378A JPS5531541A JP S5531541 A JPS5531541 A JP S5531541A JP 10244378 A JP10244378 A JP 10244378A JP 10244378 A JP10244378 A JP 10244378A JP S5531541 A JPS5531541 A JP S5531541A
Authority
JP
Japan
Prior art keywords
discriminating
cutting
wear
main shaft
motor
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
JP10244378A
Other languages
Japanese (ja)
Other versions
JPS6260221B2 (en
Inventor
Fumio Kamado
Hisao Sekiguchi
Satoru Yoshida
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP10244378A priority Critical patent/JPS5531541A/en
Publication of JPS5531541A publication Critical patent/JPS5531541A/en
Publication of JPS6260221B2 publication Critical patent/JPS6260221B2/ja
Granted 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
    • B23Q17/0904—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 before or after machining
    • B23Q17/0919—Arrangements for measuring or adjusting cutting-tool geometry in presetting devices
    • B23Q17/0947—Monitoring devices for measuring cutting angles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

PURPOSE:To certainly detect abnormality of a cutting tool by discriminating each condition of idling before cutting, cutting, and steady cutting by using electric current which flows to a motor for main shaft in order to discriminate wear of the tool and in case of discriminating wear. CONSTITUTION:Penetrating bore machining is done by a drill 102 equipped on a main shaft 103 to a work 101. A detecting part 111 detects that rotation N of the main shaft 103 has become larger than a settled value n of the rotation of a motor 104. An electric current detecting part 107 detects the current of an armature in DC motor 104. Various calculations are done by using these detecting signals, wear discriminating signals are output from a discriminating part 123. Bits of memory area in the tool number corresponding to a memory means M-1 go from 0 to 1 by these discriminating signals.
JP10244378A 1978-08-23 1978-08-23 Abnormality detecting system for cutting tool Granted JPS5531541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10244378A JPS5531541A (en) 1978-08-23 1978-08-23 Abnormality detecting system for cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10244378A JPS5531541A (en) 1978-08-23 1978-08-23 Abnormality detecting system for cutting tool

Publications (2)

Publication Number Publication Date
JPS5531541A true JPS5531541A (en) 1980-03-05
JPS6260221B2 JPS6260221B2 (en) 1987-12-15

Family

ID=14327600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10244378A Granted JPS5531541A (en) 1978-08-23 1978-08-23 Abnormality detecting system for cutting tool

Country Status (1)

Country Link
JP (1) JPS5531541A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139855A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Method of changing threshold value of tool abnormality detector
JPS56139856A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Threshold value setting method of tool abnormality detector
JPS56139857A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Threshold value setting method of tool abnormality detector
JPS56139858A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Tool abnormality detecting method of nc machine tool
JPS58126041A (en) * 1982-01-18 1983-07-27 Mitsubishi Heavy Ind Ltd Detector for abnormality of tool
JPS62136345A (en) * 1985-12-10 1987-06-19 Toshiba Mach Co Ltd Device for detecting abnormality of cutting tool
JPS62287958A (en) * 1986-06-06 1987-12-14 Okuma Mach Works Ltd Supervisory device for load in machine tool
US4978985A (en) * 1989-07-24 1990-12-18 Eastman Kodak Company Film cassette having film-exposure status indicator
JPH0349849A (en) * 1989-07-17 1991-03-04 Enshu Cloth Kk Tool damage detecting device with study function
JP2019119015A (en) * 2018-01-08 2019-07-22 株式会社竹中電機 Processing abnormality detection device and processing abnormality detection method
JP2019159759A (en) * 2018-03-13 2019-09-19 株式会社リコー Processing section determination device, processing section determination method, program, and diagnostic device
JP2020013433A (en) * 2018-07-20 2020-01-23 ブラザー工業株式会社 Numerical control device, numerical control method, and numerical control program

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6237032U (en) * 1985-08-22 1987-03-05

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139855A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Method of changing threshold value of tool abnormality detector
JPS56139856A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Threshold value setting method of tool abnormality detector
JPS56139857A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Threshold value setting method of tool abnormality detector
JPS56139858A (en) * 1980-03-27 1981-10-31 Komatsu Ltd Tool abnormality detecting method of nc machine tool
JPS58126041A (en) * 1982-01-18 1983-07-27 Mitsubishi Heavy Ind Ltd Detector for abnormality of tool
JPS62136345A (en) * 1985-12-10 1987-06-19 Toshiba Mach Co Ltd Device for detecting abnormality of cutting tool
JPS62287958A (en) * 1986-06-06 1987-12-14 Okuma Mach Works Ltd Supervisory device for load in machine tool
JPH0349849A (en) * 1989-07-17 1991-03-04 Enshu Cloth Kk Tool damage detecting device with study function
US4978985A (en) * 1989-07-24 1990-12-18 Eastman Kodak Company Film cassette having film-exposure status indicator
JP2019119015A (en) * 2018-01-08 2019-07-22 株式会社竹中電機 Processing abnormality detection device and processing abnormality detection method
JP2019159759A (en) * 2018-03-13 2019-09-19 株式会社リコー Processing section determination device, processing section determination method, program, and diagnostic device
JP2020013433A (en) * 2018-07-20 2020-01-23 ブラザー工業株式会社 Numerical control device, numerical control method, and numerical control program

Also Published As

Publication number Publication date
JPS6260221B2 (en) 1987-12-15

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