JPS57205051A - Contact detecting method between work and tool - Google Patents

Contact detecting method between work and tool

Info

Publication number
JPS57205051A
JPS57205051A JP8856581A JP8856581A JPS57205051A JP S57205051 A JPS57205051 A JP S57205051A JP 8856581 A JP8856581 A JP 8856581A JP 8856581 A JP8856581 A JP 8856581A JP S57205051 A JPS57205051 A JP S57205051A
Authority
JP
Japan
Prior art keywords
signals
tool
work
contact detecting
fed
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
JP8856581A
Inventor
Yuzo Matsunaga
Eiji Murashige
Original Assignee
Mitsubishi Heavy Ind 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 Mitsubishi Heavy Ind Ltd filed Critical Mitsubishi Heavy Ind Ltd
Priority to JP8856581A priority Critical patent/JPS57205051A/en
Publication of JPS57205051A publication Critical patent/JPS57205051A/en
Application status is Pending legal-status Critical

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical 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
    • G05B19/401Numerical 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 control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
    • G05B19/4015Numerical 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 control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes going to a reference at the beginning of machine cycle, e.g. for calibration
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/30Nc systems
    • G05B2219/37Measurements
    • G05B2219/37405Contact detection between workpiece and tool, probe, feeler

Abstract

PURPOSE:To detect a contact point between a work and a tool by detecting the instant that the pulse interval in a pulse train from position detectors of a feed drive spindle exceeds a certain reference value determined by the feed speed. CONSTITUTION:Signals 34 from position detectors 19, 20 fitted to the feed drive spindle 5a, 6a are fed into a processing circuit of a contact detecting section 9 through lines 21, 23, and subsequent pulse train signals 35 after the process are fed into a pulse counter 31. Here, the signals 35 decide a borrow output signal 37 based on the relationship between clock signals 36 from a clock generator 33 and a certain reference set value 39 determined by the feed speed. The borrow output signal 37 causes a permission gate 32 to generate a contact detecting signal 38 between a tool and a work.
JP8856581A 1981-06-09 1981-06-09 Contact detecting method between work and tool Pending JPS57205051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8856581A JPS57205051A (en) 1981-06-09 1981-06-09 Contact detecting method between work and tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8856581A JPS57205051A (en) 1981-06-09 1981-06-09 Contact detecting method between work and tool

Publications (1)

Publication Number Publication Date
JPS57205051A true JPS57205051A (en) 1982-12-16

Family

ID=13946382

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8856581A Pending JPS57205051A (en) 1981-06-09 1981-06-09 Contact detecting method between work and tool

Country Status (1)

Country Link
JP (1) JPS57205051A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197009U (en) * 1987-06-11 1988-12-19
JPH01252343A (en) * 1988-03-30 1989-10-09 Seiko Seiki Co Ltd Contact position detecting device and machine tool employing said device
JPH01306178A (en) * 1988-06-04 1989-12-11 Senjiyou Seiki Kk Grinding device
CN102666007A (en) * 2009-11-02 2012-09-12 村田机械株式会社 Machine tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197009U (en) * 1987-06-11 1988-12-19
JPH01252343A (en) * 1988-03-30 1989-10-09 Seiko Seiki Co Ltd Contact position detecting device and machine tool employing said device
JPH01306178A (en) * 1988-06-04 1989-12-11 Senjiyou Seiki Kk Grinding device
CN102666007A (en) * 2009-11-02 2012-09-12 村田机械株式会社 Machine tool

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