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JPS54154880A - Device for detecting abnormality on cutting tool - Google Patents

Device for detecting abnormality on cutting tool

Info

Publication number
JPS54154880A
JPS54154880A JP6225278A JP6225278A JPS54154880A JP S54154880 A JPS54154880 A JP S54154880A JP 6225278 A JP6225278 A JP 6225278A JP 6225278 A JP6225278 A JP 6225278A JP S54154880 A JPS54154880 A JP S54154880A
Authority
JP
Japan
Prior art keywords
air
air hole
changable
cutting tool
chip
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
JP6225278A
Other languages
Japanese (ja)
Inventor
Arata Yasutaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6225278A priority Critical patent/JPS54154880A/en
Publication of JPS54154880A publication Critical patent/JPS54154880A/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
    • B23Q17/0957—Detection of tool breakage
    • 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
    • B23Q2717/00—Arrangements for indicating or measuring
    • B23Q2717/003—Arrangements for indicating or measuring in lathes

Landscapes

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

Abstract

PURPOSE:To detect abnormality on a changable cutting tool during operation by providing both a means to supply air with constant pressure above the atmospheric pressure through an air hole in a tool holder, and a means which converts detected change of air flow into an electric signal. CONSTITUTION:An air hole 6 is provided in a tool holder 3 on which a changable insert-chip 1 is fixed. This air hole 6 has an opening on a tool holder surface where the lower surface of the chip 1 is in contact with. The air coming from an air compressor 9 is controlled to a constant, positive pressure by a pressure regulator 8 and is supplied to the air hole 6 through a pressure change detector 7. The detector 7 is connected to a signal convertor 10 by means of piping, and an electric signal produced in the convertor 10 is transmitted to an alarm 11 through electric lead wires. With this constitution, abnormality on a cutting tool whose chip is changable is detected quickly during operation, thus increasing production efficiency.
JP6225278A 1978-05-26 1978-05-26 Device for detecting abnormality on cutting tool Pending JPS54154880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6225278A JPS54154880A (en) 1978-05-26 1978-05-26 Device for detecting abnormality on cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6225278A JPS54154880A (en) 1978-05-26 1978-05-26 Device for detecting abnormality on cutting tool

Publications (1)

Publication Number Publication Date
JPS54154880A true JPS54154880A (en) 1979-12-06

Family

ID=13194755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6225278A Pending JPS54154880A (en) 1978-05-26 1978-05-26 Device for detecting abnormality on cutting tool

Country Status (1)

Country Link
JP (1) JPS54154880A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593277A (en) * 1984-01-16 1986-06-03 Langan Engineering, Inc. Apparatus and method for sensing excessive wear or failure of machine tool
JPS63102854A (en) * 1986-10-20 1988-05-07 Nippon Pneumatic Kogyo Kk Abnormal tool changing method
EP2271448A2 (en) * 2008-03-10 2011-01-12 Henrob Limited Die condition detection

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593277A (en) * 1984-01-16 1986-06-03 Langan Engineering, Inc. Apparatus and method for sensing excessive wear or failure of machine tool
JPS63102854A (en) * 1986-10-20 1988-05-07 Nippon Pneumatic Kogyo Kk Abnormal tool changing method
EP2271448A2 (en) * 2008-03-10 2011-01-12 Henrob Limited Die condition detection
US8671726B2 (en) 2008-03-10 2014-03-18 Henrob Limited Die condition detection
EP2271448B1 (en) * 2008-03-10 2016-10-26 Henrob Limited Die condition detection
US9528902B2 (en) 2008-03-10 2016-12-27 Henrob Limited Die condition detection
US10556267B2 (en) 2008-03-10 2020-02-11 Atlas Copco Ias Uk Limited Die condition detection

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