JPS54121480A - Control of steel tube cutting - Google Patents

Control of steel tube cutting

Info

Publication number
JPS54121480A
JPS54121480A JP2850678A JP2850678A JPS54121480A JP S54121480 A JPS54121480 A JP S54121480A JP 2850678 A JP2850678 A JP 2850678A JP 2850678 A JP2850678 A JP 2850678A JP S54121480 A JPS54121480 A JP S54121480A
Authority
JP
Japan
Prior art keywords
cutting
motor
cutting tools
serbo
motors
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
JP2850678A
Other languages
Japanese (ja)
Other versions
JPS5929382B2 (en
Inventor
Kanji Tsuruoka
Hisanori Kano
Hirotane Matsuda
Hidenori Yasuoka
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2850678A priority Critical patent/JPS5929382B2/en
Publication of JPS54121480A publication Critical patent/JPS54121480A/en
Publication of JPS5929382B2 publication Critical patent/JPS5929382B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: In a steel tube cutter for cutting steel tubes with a plurality of cutting tools, to ensure ideal cutting by automatically balancing the cutting depths of said cutting tools without manual adjustment.
CONSTITUTION: Tool-rest driving DC serbo-motors 1a and 1b, independent from each other are used as a standard motor driven at a constant speed dependent on the feed speed of cutting tools that is determined in accordance with cutting condition and as a follower motor driven while maintaining the balance thereof with said motor 1a respectively. The load current of said serbo-motors 1a and 1b are detected by current detectors 10a and 10b, and said follower motor 1b is controlled by using the compensation value obtained dependent on the difference of load current value between said both serbo-motors 1a and 1b. Further, when detected by a motor load detecting circuit 13, the continuance of no-load by a motor-load detecting circuit 13 for a fixed period of time is judged to indicate the breakage of said cutting tools and said cutting tools are reversed.
COPYRIGHT: (C)1979,JPO&Japio
JP2850678A 1978-03-13 1978-03-13 Steel pipe cutting control method Expired JPS5929382B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2850678A JPS5929382B2 (en) 1978-03-13 1978-03-13 Steel pipe cutting control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2850678A JPS5929382B2 (en) 1978-03-13 1978-03-13 Steel pipe cutting control method

Publications (2)

Publication Number Publication Date
JPS54121480A true JPS54121480A (en) 1979-09-20
JPS5929382B2 JPS5929382B2 (en) 1984-07-20

Family

ID=12250555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2850678A Expired JPS5929382B2 (en) 1978-03-13 1978-03-13 Steel pipe cutting control method

Country Status (1)

Country Link
JP (1) JPS5929382B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163608A (en) * 1983-03-08 1984-09-14 Hitachi Koki Co Ltd Jigsaw
JPS6353649U (en) * 1986-09-26 1988-04-11
CN102320018A (en) * 2011-07-29 2012-01-18 上海先德机械工程有限公司 Control device of milling feed speed curve and control method thereof
CN109719570A (en) * 2018-12-25 2019-05-07 嵊州市开丰纺织机械有限公司 A kind of fixed-length cutting device for stainless steel tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163608A (en) * 1983-03-08 1984-09-14 Hitachi Koki Co Ltd Jigsaw
JPS6353649U (en) * 1986-09-26 1988-04-11
CN102320018A (en) * 2011-07-29 2012-01-18 上海先德机械工程有限公司 Control device of milling feed speed curve and control method thereof
CN109719570A (en) * 2018-12-25 2019-05-07 嵊州市开丰纺织机械有限公司 A kind of fixed-length cutting device for stainless steel tube

Also Published As

Publication number Publication date
JPS5929382B2 (en) 1984-07-20

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