JPS5537226A - Overload monitor for cutting operation - Google Patents

Overload monitor for cutting operation

Info

Publication number
JPS5537226A
JPS5537226A JP10758578A JP10758578A JPS5537226A JP S5537226 A JPS5537226 A JP S5537226A JP 10758578 A JP10758578 A JP 10758578A JP 10758578 A JP10758578 A JP 10758578A JP S5537226 A JPS5537226 A JP S5537226A
Authority
JP
Japan
Prior art keywords
cutting
signal
amplifier
damage
amplitude
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
JP10758578A
Other languages
Japanese (ja)
Inventor
Yoshiaki Saijo
Ichiro Tanaka
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 JP10758578A priority Critical patent/JPS5537226A/en
Publication of JPS5537226A publication Critical patent/JPS5537226A/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
    • B23Q17/0904—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 reliable on-line alarm or cutting signal, by converting an electric signal with excess amplitude among those caused by cutting into a pulse signal and comparing it with the number of reference wave. CONSTITUTION:While machining with drilling machine, a detector 1 for sensing an anomalous load on a main spindle caused by damage of a drill detects vibration due to the cutting and puts a signal with excess amplitude among those output detected in an amplifier 6 as a pulse signal. The signal sent from the amplifier 6 through a filter 7, main amplifier 8, amplitude discriminator 9 and counter 10 to a comparator 11 is counted, compared with the reference wave and discriminated to raise an alarm. This can notive overload during the cutting in the on-line system to detect any damage of a drill.
JP10758578A 1978-09-04 1978-09-04 Overload monitor for cutting operation Pending JPS5537226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10758578A JPS5537226A (en) 1978-09-04 1978-09-04 Overload monitor for cutting operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10758578A JPS5537226A (en) 1978-09-04 1978-09-04 Overload monitor for cutting operation

Publications (1)

Publication Number Publication Date
JPS5537226A true JPS5537226A (en) 1980-03-15

Family

ID=14462882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10758578A Pending JPS5537226A (en) 1978-09-04 1978-09-04 Overload monitor for cutting operation

Country Status (1)

Country Link
JP (1) JPS5537226A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721248A (en) * 1980-07-07 1982-02-03 Nachi Fujikoshi Corp Controlling method for feed speed of machine tool
JPS57172218A (en) * 1981-04-17 1982-10-23 Komatsu Ltd Detector for tool defect
JPS60186353A (en) * 1984-03-01 1985-09-21 Matsuura Kikai Seisakusho:Kk Fracture predicting device for tool
JPS62138552U (en) * 1986-02-22 1987-09-01
JPS62202559A (en) * 1986-02-07 1987-09-07 Fujitsu Ltd Semiconductor device and its manufacture
FR2627955A1 (en) * 1988-03-02 1989-09-08 Roquette Freres Freezing additive for foodstuff partic. minced fish - comprises sugar and/or poly:ol particles coated with emulsifier or fat, then with compsn. for preventing re-agglomeration
JPH0253552A (en) * 1988-08-19 1990-02-22 Nagano Pref Gov Extraction device for feature of supersonic signal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721248A (en) * 1980-07-07 1982-02-03 Nachi Fujikoshi Corp Controlling method for feed speed of machine tool
JPS6357181B2 (en) * 1980-07-07 1988-11-10 Fujikoshi Kk
JPS57172218A (en) * 1981-04-17 1982-10-23 Komatsu Ltd Detector for tool defect
JPS60186353A (en) * 1984-03-01 1985-09-21 Matsuura Kikai Seisakusho:Kk Fracture predicting device for tool
JPS62202559A (en) * 1986-02-07 1987-09-07 Fujitsu Ltd Semiconductor device and its manufacture
JPS62138552U (en) * 1986-02-22 1987-09-01
FR2627955A1 (en) * 1988-03-02 1989-09-08 Roquette Freres Freezing additive for foodstuff partic. minced fish - comprises sugar and/or poly:ol particles coated with emulsifier or fat, then with compsn. for preventing re-agglomeration
JPH0253552A (en) * 1988-08-19 1990-02-22 Nagano Pref Gov Extraction device for feature of supersonic signal

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