JPS5252281A - Fracture detecting device for cutting tool - Google Patents

Fracture detecting device for cutting tool

Info

Publication number
JPS5252281A
JPS5252281A JP50128128A JP12812875A JPS5252281A JP S5252281 A JPS5252281 A JP S5252281A JP 50128128 A JP50128128 A JP 50128128A JP 12812875 A JP12812875 A JP 12812875A JP S5252281 A JPS5252281 A JP S5252281A
Authority
JP
Japan
Prior art keywords
cutting tool
detecting device
fracture detecting
fracture
acceleration
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
JP50128128A
Other languages
Japanese (ja)
Other versions
JPS567813B2 (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 JP50128128A priority Critical patent/JPS5252281A/en
Priority to US05/641,340 priority patent/US4087801A/en
Priority to CH1644575A priority patent/CH591691A5/xx
Priority to DE2557428A priority patent/DE2557428C2/en
Publication of JPS5252281A publication Critical patent/JPS5252281A/en
Publication of JPS567813B2 publication Critical patent/JPS567813B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

PURPOSE:To provide a device, which detects acceleration in the mechanical vibration of a cutting tool, etc. occurring during cutting operation. This device transforms acceleration into RMS value and differentiates the building-up component and compares it with reference voltage, so that fracture of the cutting tool can be detected automatically and responds quickly.
JP50128128A 1974-12-20 1975-10-24 Fracture detecting device for cutting tool Granted JPS5252281A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50128128A JPS5252281A (en) 1975-10-24 1975-10-24 Fracture detecting device for cutting tool
US05/641,340 US4087801A (en) 1974-12-20 1975-12-16 Apparatus for detecting damages of cutting tools
CH1644575A CH591691A5 (en) 1974-12-20 1975-12-18
DE2557428A DE2557428C2 (en) 1974-12-20 1975-12-19 Device for detecting damage to a cutting tool of a machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50128128A JPS5252281A (en) 1975-10-24 1975-10-24 Fracture detecting device for cutting tool

Publications (2)

Publication Number Publication Date
JPS5252281A true JPS5252281A (en) 1977-04-26
JPS567813B2 JPS567813B2 (en) 1981-02-19

Family

ID=14977076

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50128128A Granted JPS5252281A (en) 1974-12-20 1975-10-24 Fracture detecting device for cutting tool

Country Status (1)

Country Link
JP (1) JPS5252281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5432885A (en) * 1977-08-18 1979-03-10 Niigata Eng Co Ltd Method of observing wear of tool in automatic machine tools

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044588A (en) * 1973-08-25 1975-04-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5044588A (en) * 1973-08-25 1975-04-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5432885A (en) * 1977-08-18 1979-03-10 Niigata Eng Co Ltd Method of observing wear of tool in automatic machine tools
JPS5734062B2 (en) * 1977-08-18 1982-07-21

Also Published As

Publication number Publication date
JPS567813B2 (en) 1981-02-19

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