JPS6416350A - Machine tool - Google Patents

Machine tool

Info

Publication number
JPS6416350A
JPS6416350A JP3459688A JP3459688A JPS6416350A JP S6416350 A JPS6416350 A JP S6416350A JP 3459688 A JP3459688 A JP 3459688A JP 3459688 A JP3459688 A JP 3459688A JP S6416350 A JPS6416350 A JP S6416350A
Authority
JP
Japan
Prior art keywords
drive torque
display
decreased
display units
decrease
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
JP3459688A
Other languages
Japanese (ja)
Other versions
JPH0338066B2 (en
Inventor
Mitsuo Ishikawa
Kiyoshi Sasaki
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP3459688A priority Critical patent/JPS6416350A/en
Publication of JPS6416350A publication Critical patent/JPS6416350A/en
Publication of JPH0338066B2 publication Critical patent/JPH0338066B2/ja
Granted 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
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • B23Q17/0904—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool before or after machining
    • B23Q17/0919—Arrangements for measuring or adjusting cutting-tool geometry in presetting devices
    • B23Q17/0947—Monitoring devices for measuring cutting angles

Landscapes

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

Abstract

PURPOSE:To perform a safe cutting work, by a method wherein a state in which drive torque is decreased during transfer of drive torque from an unstable region to a stable region can be displayed. CONSTITUTION:When it is decided that drive torque exerted on a transmission spring serving as a rotation transmission member does not enter a stable region, a CPU 3 executes computation to determine the decrease factor of drive torque. Based on a calculated decrease factor, a display control signal is outputted to a display drive circuit 43 to light, in order from the display unit 42a side, only by the number of display units, equivalent to a decrease factor, of ten display units 42a-42j. Thus, only by observing the number of the lighted display units, a worker detects that present drive torque is decreased to what degree. When the decrease value of drive torque is decreased to a value lower than a torque reference value, the CPU 31 outputs a movement control signal to a valve drive circuit 41 to switch a solenoid valve 13 for control, and a drill is moved to a machining position. This constitution enables safe starting of a cutting work.
JP3459688A 1988-02-17 1988-02-17 Machine tool Granted JPS6416350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3459688A JPS6416350A (en) 1988-02-17 1988-02-17 Machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3459688A JPS6416350A (en) 1988-02-17 1988-02-17 Machine tool

Publications (2)

Publication Number Publication Date
JPS6416350A true JPS6416350A (en) 1989-01-19
JPH0338066B2 JPH0338066B2 (en) 1991-06-07

Family

ID=12418717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3459688A Granted JPS6416350A (en) 1988-02-17 1988-02-17 Machine tool

Country Status (1)

Country Link
JP (1) JPS6416350A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002086330A (en) * 2000-09-08 2002-03-26 Nachi Fujikoshi Corp Method for cutting by numerically controlled machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002086330A (en) * 2000-09-08 2002-03-26 Nachi Fujikoshi Corp Method for cutting by numerically controlled machine tool

Also Published As

Publication number Publication date
JPH0338066B2 (en) 1991-06-07

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