SKIP CONTROL METHOD OF NUMERICAL CONTROLLER

Title:

SKIP CONTROL METHOD OF NUMERICAL CONTROLLER

Document Type and Number:

Japanese Patent JP2788149

Kind Code:

B2

Abstract:

PURPOSE: To reduce the quantity of intrusion of a tool into a work and to prevent the tool or work from being broken by sending a stop signal to a servo driving part in the moment a skip signal is detected at the time of a skip command and stopping a servomotor.
CONSTITUTION: The numerical controller 3 consists of an NC data processing part 1 which processes numerical data according to an NC program and a servo driving part 2 which drives the servomotor 4 with a command from the NC data processing part 1. The stop signal is sent from the NC data processing part 1 to the servo driving part 2 the moment a skip command from a skip sensor which detects the tool colliding against the work during the skip command executing an NC program for measuring the tool length is inputted from a machine side to the NC data processing part 1, thereby stopping the servomotor 4. A command for returning a table by a specific distance in the opposite direction from the moving direction of the table before the stop is outputted from the NC data processing part 1 to the servo driving part 2.

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Inventors:

SASAKI TAKAO
OOTSUKI TOSHIAKI
ISHII SEIJI

Application Number:

JP7759192A

Publication Date:

August 20, 1998

Filing Date:

March 31, 1992

Export Citation:

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Assignee:

FUANATSUKU KK

International Classes:

G05B19/18; G05B19/19; (IPC1-7): G05B19/18; G05B19/19

Domestic Patent References:

JP1280209A
JP1244513A
JP256606A
JP62239204A

Attorney, Agent or Firm:

Aoki Akira (4 outside)

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