JPS56163863A - Apparatus for reducing lost cutting time of nc machine tool - Google Patents

Apparatus for reducing lost cutting time of nc machine tool

Info

Publication number
JPS56163863A
JPS56163863A JP6563080A JP6563080A JPS56163863A JP S56163863 A JPS56163863 A JP S56163863A JP 6563080 A JP6563080 A JP 6563080A JP 6563080 A JP6563080 A JP 6563080A JP S56163863 A JPS56163863 A JP S56163863A
Authority
JP
Japan
Prior art keywords
value
machine tool
load current
command
circuit
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
JP6563080A
Other languages
Japanese (ja)
Inventor
Choji Kato
Yasunobu Suzuki
Hajime Ohashi
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.)
Yamazaki Mazak Corp
Original Assignee
Yamazaki Mazak Corp
Yamazaki Machinery Works 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 Yamazaki Mazak Corp, Yamazaki Machinery Works Ltd filed Critical Yamazaki Mazak Corp
Priority to JP6563080A priority Critical patent/JPS56163863A/en
Publication of JPS56163863A publication Critical patent/JPS56163863A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce noncutting time with a higher feed speed by discriminating it detecting a load during the cutting operation of an NC machine tool.
CONSTITUTION: A load current of a spindle motor or a Z axis servomotor M is detected with a detector 6 and fed to an input buffer circuit 7. The value of the load current at the start of the command is held in an initial value holding circuit 4 as a value for the time of noncutting. The value is compared with the initial value held by a comparator 5. An overriding setting circuit 8 is set at a maximum value so as to maximize the feed speed. When a cutting load current is detected by the comparator 5, the overriding reaches a level of 100% and is sent to an NC equipment by way of an output circuit 9. Then, the equipment is operated with a command value of a command tape.
COPYRIGHT: (C)1981,JPO&Japio
JP6563080A 1980-05-16 1980-05-16 Apparatus for reducing lost cutting time of nc machine tool Pending JPS56163863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6563080A JPS56163863A (en) 1980-05-16 1980-05-16 Apparatus for reducing lost cutting time of nc machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6563080A JPS56163863A (en) 1980-05-16 1980-05-16 Apparatus for reducing lost cutting time of nc machine tool

Publications (1)

Publication Number Publication Date
JPS56163863A true JPS56163863A (en) 1981-12-16

Family

ID=13292519

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6563080A Pending JPS56163863A (en) 1980-05-16 1980-05-16 Apparatus for reducing lost cutting time of nc machine tool

Country Status (1)

Country Link
JP (1) JPS56163863A (en)

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