JPS5590246A - Control device of machine tool - Google Patents

Control device of machine tool

Info

Publication number
JPS5590246A
JPS5590246A JP15994078A JP15994078A JPS5590246A JP S5590246 A JPS5590246 A JP S5590246A JP 15994078 A JP15994078 A JP 15994078A JP 15994078 A JP15994078 A JP 15994078A JP S5590246 A JPS5590246 A JP S5590246A
Authority
JP
Japan
Prior art keywords
deccelerating
current
signal
cutter feed
main shaft
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
JP15994078A
Other languages
Japanese (ja)
Inventor
Satoru Ariga
Kazunobu Nagai
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 JP15994078A priority Critical patent/JPS5590246A/en
Publication of JPS5590246A publication Critical patent/JPS5590246A/en
Pending legal-status Critical Current

Links

Landscapes

  • Automatic Control Of Machine Tools (AREA)

Abstract

PURPOSE: To prevent damages to the work or the machine when the main shaft motor is overloaded by automatically deccelerating the cutter feeding motor.
CONSTITUTION: By sending signal detected at the current detector 7 to the cutter feed deccelerating signal generator 17 when overloaded current flows through the main shaft motor 3 due to excessive cutting load, cutter feed deccelerating signal corresponding to the overload compared to the standard current valve which can be appropriately set is transmitted to the subtraction operator 18. Also, stalling speed is detected when the main shaft motor 3 is stalled by cutting load exceeding the current limit to transmit cutter feed deccelerating signal from the cutter feed deccelerating signal generator 19 corresponding to the stall which is transmitted to the subtracting operator 20 only when current signal from the current detector 7 is current limit value. The cutter feed motor 5 is deccelerated by the output from the subtraction operators 18, 20.
COPYRIGHT: (C)1980,JPO&Japio
JP15994078A 1978-12-27 1978-12-27 Control device of machine tool Pending JPS5590246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15994078A JPS5590246A (en) 1978-12-27 1978-12-27 Control device of machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15994078A JPS5590246A (en) 1978-12-27 1978-12-27 Control device of machine tool

Publications (1)

Publication Number Publication Date
JPS5590246A true JPS5590246A (en) 1980-07-08

Family

ID=15704474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15994078A Pending JPS5590246A (en) 1978-12-27 1978-12-27 Control device of machine tool

Country Status (1)

Country Link
JP (1) JPS5590246A (en)

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