JPS5449691A - Means for detecting the contact between tool and work - Google Patents

Means for detecting the contact between tool and work

Info

Publication number
JPS5449691A
JPS5449691A JP11572377A JP11572377A JPS5449691A JP S5449691 A JPS5449691 A JP S5449691A JP 11572377 A JP11572377 A JP 11572377A JP 11572377 A JP11572377 A JP 11572377A JP S5449691 A JPS5449691 A JP S5449691A
Authority
JP
Japan
Prior art keywords
tool
wave
contact
work
power source
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
JP11572377A
Other languages
Japanese (ja)
Other versions
JPS5841983B2 (en
Inventor
Hideo Nishimura
Kunihiko Eto
Kiyouji Itou
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP52115723A priority Critical patent/JPS5841983B2/en
Publication of JPS5449691A publication Critical patent/JPS5449691A/en
Publication of JPS5841983B2 publication Critical patent/JPS5841983B2/en
Expired 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
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece

Landscapes

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

Abstract

PURPOSE:To effect the tool contact detection stably and with high accuracy regardless of the variance of the voltage in the electric power source, the temperature drift of the like so as to detect the contact between the tool and the work from the difference between the reference wave-form and the detected wave-form. CONSTITUTION:An AC power source 14 is connected to a coil 12 which is provided in the vicinity of the tool, and a circuit for detecting an AC wave-form (a resistor 13) is provided between the coil 12 and the AC power source 14. In parallel with the AC power source 14 are connected reference wave-form generating circuits 30, 34 for forming the same wave-form as the detected wave-form when the tool and the work are not in contact with each other. Said detection circuit and reference wave-form generating circuits 30, 34 are connected to a comparator circuit 36 and the contact between said tool and work is detected by the occurrence of difference between said detected wave-form and reference wave-form. If the tool contact is detected in such a way, both the wave-forms integrally vary regardless of the variance of the voltage of the power source and the temperature drift at the time when the tool and the work are not in contact with each other, thereby it becomes possible to effect the detection of tool contact stably, with high accuracy and without varying the setting level.
JP52115723A 1977-09-27 1977-09-27 Contact detection device for tool and workpiece Expired JPS5841983B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52115723A JPS5841983B2 (en) 1977-09-27 1977-09-27 Contact detection device for tool and workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52115723A JPS5841983B2 (en) 1977-09-27 1977-09-27 Contact detection device for tool and workpiece

Publications (2)

Publication Number Publication Date
JPS5449691A true JPS5449691A (en) 1979-04-19
JPS5841983B2 JPS5841983B2 (en) 1983-09-16

Family

ID=14669522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52115723A Expired JPS5841983B2 (en) 1977-09-27 1977-09-27 Contact detection device for tool and workpiece

Country Status (1)

Country Link
JP (1) JPS5841983B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174851A (en) * 1987-01-09 1988-07-19 Hitachi Metals Ltd Detecting device for contact between tool and work
JP2019217469A (en) * 2018-06-21 2019-12-26 株式会社ニューフレアテクノロジー Dry cleaning device and dry cleaning method of the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840861A (en) * 1971-09-23 1973-06-15
JPS5139715A (en) * 1974-10-02 1976-04-02 Tokyo Shibaura Electric Co KONKURIITOPAIRUSEIZONO JIDOKASOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840861A (en) * 1971-09-23 1973-06-15
JPS5139715A (en) * 1974-10-02 1976-04-02 Tokyo Shibaura Electric Co KONKURIITOPAIRUSEIZONO JIDOKASOCHI

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63174851A (en) * 1987-01-09 1988-07-19 Hitachi Metals Ltd Detecting device for contact between tool and work
JP2019217469A (en) * 2018-06-21 2019-12-26 株式会社ニューフレアテクノロジー Dry cleaning device and dry cleaning method of the same

Also Published As

Publication number Publication date
JPS5841983B2 (en) 1983-09-16

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