JPS57149137A - Numerical controller for hobbing machine - Google Patents

Numerical controller for hobbing machine

Info

Publication number
JPS57149137A
JPS57149137A JP3368481A JP3368481A JPS57149137A JP S57149137 A JPS57149137 A JP S57149137A JP 3368481 A JP3368481 A JP 3368481A JP 3368481 A JP3368481 A JP 3368481A JP S57149137 A JPS57149137 A JP S57149137A
Authority
JP
Japan
Prior art keywords
main shaft
hob
rotational frequency
constitution
numerical controller
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
JP3368481A
Other languages
Japanese (ja)
Other versions
JPS6154540B2 (en
Inventor
Kiyoshi Takagawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3368481A priority Critical patent/JPS57149137A/en
Publication of JPS57149137A publication Critical patent/JPS57149137A/en
Publication of JPS6154540B2 publication Critical patent/JPS6154540B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical 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
    • G05B19/182—Numerical 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 the machine tool function, e.g. thread cutting, cam making, tool direction control
    • G05B19/186—Generation of screw- or gearlike surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Gear Processing (AREA)
  • Machine Tool Sensing Apparatuses (AREA)

Abstract

PURPOSE:To provide a numerical controller which detects the synchronization of engagement of a hob and a workpiece by monitoring the revolution speed of the hob or a main shaft and an instructed main shaft data during the engagement. CONSTITUTION:The rotation of a hob 7 coupled to a main shaft 6 is detected by a pulse generator 8 and counted by a main shaft rotational frequency detection circuit 10 for every prescribed period. A data read for the preceding period is subtracted from the counted value to determine the difference to find out the present rotational frequency of the main shaft 6. When a main shaft stationary state storage flip-flop 9 is set for the stationary state, the present rotational frequency of the main shaft 6 found out through the detection circuit 10 and passed through an AND gate 11 is compared by a comparator 12 with a theoretical value determined in consideration of a hob fluctuation ratio put in a main shaft rotational frequency storage circuit 5. According to this constitution, the data of the main shaft 6 and a command therefor can automatically be monitored.
JP3368481A 1981-03-09 1981-03-09 Numerical controller for hobbing machine Granted JPS57149137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3368481A JPS57149137A (en) 1981-03-09 1981-03-09 Numerical controller for hobbing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3368481A JPS57149137A (en) 1981-03-09 1981-03-09 Numerical controller for hobbing machine

Publications (2)

Publication Number Publication Date
JPS57149137A true JPS57149137A (en) 1982-09-14
JPS6154540B2 JPS6154540B2 (en) 1986-11-22

Family

ID=12393256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3368481A Granted JPS57149137A (en) 1981-03-09 1981-03-09 Numerical controller for hobbing machine

Country Status (1)

Country Link
JP (1) JPS57149137A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234183A (en) * 1975-09-12 1977-03-15 Toshiba Mach Co Ltd Synchronous feed control system
JPS5246587A (en) * 1975-10-09 1977-04-13 Okuma Mach Works Ltd Table rotary axis control system in numerical control hobbing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5234183A (en) * 1975-09-12 1977-03-15 Toshiba Mach Co Ltd Synchronous feed control system
JPS5246587A (en) * 1975-10-09 1977-04-13 Okuma Mach Works Ltd Table rotary axis control system in numerical control hobbing machine

Also Published As

Publication number Publication date
JPS6154540B2 (en) 1986-11-22

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