JPS6478744A - Cutting tool - Google Patents

Cutting tool

Info

Publication number
JPS6478744A
JPS6478744A JP23409787A JP23409787A JPS6478744A JP S6478744 A JPS6478744 A JP S6478744A JP 23409787 A JP23409787 A JP 23409787A JP 23409787 A JP23409787 A JP 23409787A JP S6478744 A JPS6478744 A JP S6478744A
Authority
JP
Japan
Prior art keywords
cutting
main body
bite
waveform
tool
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.)
Pending
Application number
JP23409787A
Other languages
Japanese (ja)
Inventor
Setsu Takeuchi
Ryozo Arai
Mikio Goto
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP23409787A priority Critical patent/JPS6478744A/en
Publication of JPS6478744A publication Critical patent/JPS6478744A/en
Pending 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
    • B23Q17/0971—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

Landscapes

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

Abstract

PURPOSE:To enable a machine tool to be automatically stopped certainly at the time of breakage of a cutting tool by comparing the oscillatory waveform of a tool main body in a normal state with an oscillation obtained by means of a piezoelectric element and propagated from a cutting portion to the tool main body, so that any breakage of the tool may be detected. CONSTITUTION:In a bite main body 10 disposed on a lathe is directly provided a piezoelectric element 14 in advance, so in the case of cutting a work by using this bite, an oscillatory waveform from the piezoelectric element 14 is sent to an arithmetic means 20 simultaneously with start of cutting. Thereat, the oscillatory waveform of the bite main body 10 in the case of a suitable cutting is previously stored into a memory means 21 so that the oscillatory waveform from the piezoelectric element 14 is compared with the stored oscilla tory waveform. And next, in the case that a built-up edge is formed or any breakage or fracture occurs on the tip blade portion 11 of the bite, the oscillato ry waveform of the bite main body 10 is different from that at the time of suitable cutting so that a main motor for rotating the spindle of the lathe is stopped, and further the abnormality of the lathe is displayed by means of an alarm lamp or alarm buzzer.
JP23409787A 1987-09-18 1987-09-18 Cutting tool Pending JPS6478744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23409787A JPS6478744A (en) 1987-09-18 1987-09-18 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23409787A JPS6478744A (en) 1987-09-18 1987-09-18 Cutting tool

Publications (1)

Publication Number Publication Date
JPS6478744A true JPS6478744A (en) 1989-03-24

Family

ID=16965574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23409787A Pending JPS6478744A (en) 1987-09-18 1987-09-18 Cutting tool

Country Status (1)

Country Link
JP (1) JPS6478744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106736857A (en) * 2016-11-30 2017-05-31 太原科技大学 The gradient piezoelectric ceramics intelligence cutting tool unit that cutting force self is known

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106736857A (en) * 2016-11-30 2017-05-31 太原科技大学 The gradient piezoelectric ceramics intelligence cutting tool unit that cutting force self is known

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