JPS5252282A - Fracture detecting device for cutting tool - Google Patents

Fracture detecting device for cutting tool

Info

Publication number
JPS5252282A
JPS5252282A JP12812975A JP12812975A JPS5252282A JP S5252282 A JPS5252282 A JP S5252282A JP 12812975 A JP12812975 A JP 12812975A JP 12812975 A JP12812975 A JP 12812975A JP S5252282 A JPS5252282 A JP S5252282A
Authority
JP
Japan
Prior art keywords
cutting tool
detecting device
fracture detecting
fracture
transforms
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
JP12812975A
Other languages
Japanese (ja)
Other versions
JPS5536457B2 (en
Inventor
Akihiko No
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12812975A priority Critical patent/JPS5252282A/en
Publication of JPS5252282A publication Critical patent/JPS5252282A/en
Publication of JPS5536457B2 publication Critical patent/JPS5536457B2/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 provide a device, which transforms contact resistance between a cutting tool and a material to be cut into electric signal and extracts AC component to be contained, and compares it with reference voltage, so that fracture of the cutting tool can be detected automatically.
JP12812975A 1975-10-24 1975-10-24 Fracture detecting device for cutting tool Granted JPS5252282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12812975A JPS5252282A (en) 1975-10-24 1975-10-24 Fracture detecting device for cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12812975A JPS5252282A (en) 1975-10-24 1975-10-24 Fracture detecting device for cutting tool

Publications (2)

Publication Number Publication Date
JPS5252282A true JPS5252282A (en) 1977-04-26
JPS5536457B2 JPS5536457B2 (en) 1980-09-20

Family

ID=14977101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12812975A Granted JPS5252282A (en) 1975-10-24 1975-10-24 Fracture detecting device for cutting tool

Country Status (1)

Country Link
JP (1) JPS5252282A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119484A (en) * 1977-03-28 1978-10-18 Hitachi Ltd Device for detecting breakdown of cutting tools
JPS5639852A (en) * 1979-09-03 1981-04-15 Hitachi Ltd Abnormality detector for cutting tool of machine tool
US4694686A (en) * 1984-06-18 1987-09-22 Borg-Warner Corporation Cutting tool wear monitor
CN109129016A (en) * 2018-10-22 2019-01-04 深圳大学 A kind of knife-breaking detecting method and detection system of numerically-controlled machine tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068384U (en) * 1973-10-23 1975-06-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5068384U (en) * 1973-10-23 1975-06-18

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53119484A (en) * 1977-03-28 1978-10-18 Hitachi Ltd Device for detecting breakdown of cutting tools
JPS6128462B2 (en) * 1977-03-28 1986-06-30 Hitachi Ltd
JPS5639852A (en) * 1979-09-03 1981-04-15 Hitachi Ltd Abnormality detector for cutting tool of machine tool
JPS6161939B2 (en) * 1979-09-03 1986-12-27 Hitachi Ltd
US4694686A (en) * 1984-06-18 1987-09-22 Borg-Warner Corporation Cutting tool wear monitor
CN109129016A (en) * 2018-10-22 2019-01-04 深圳大学 A kind of knife-breaking detecting method and detection system of numerically-controlled machine tool

Also Published As

Publication number Publication date
JPS5536457B2 (en) 1980-09-20

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