Monitoring device and method of monitoring

Patent metadata

Field	Value
Publication number	US-10960477-B2
Application number	US-201916266568-A
Country	US
Kind code	B2
Filing date	Feb 4, 2019
Priority date	Feb 8, 2018
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

A monitoring device for monitoring an operation condition of a machine tool includes: an information acquiring section that acquires event information generated by operation of the machine tool and state information of the machine tool; a judging section that when, after generation of the event information, there has occurred a predetermined change of state of the machine tool corresponding to content indicated by the event information, judges whether or not the content indicated by the event information has been resolved, based on the event information and the state information; and a notifying section that, in the case where when there has occurred the predetermined change of state of the machine tool corresponding to the content indicated by the event information, it has been judged that the content indicated by the event information has not been resolved, re-notifies of the generated event information.

First claim

What is claimed is:

1. A monitoring device for monitoring an operation condition of a machine tool operatively connected to the monitoring device, the monitoring device comprising a processor configured to:
communicate with the machine tool to acquire event information generated by operation of the machine tool and state information of the machine tool from the machine tool;
after generation of the event information, and in response to the occurrence of there has occurred a predetermined change of state of the machine tool corresponding to content indicated by the event information, judge whether or not the content indicated by the event information has been resolved, based on the event information and the state information; and
in response to judging that the content indicated by the event information has not been resolved after the occurrence of the predetermined change of state of the machine tool corresponding to the content indicated by the event information re-notify of the generated event information,
wherein the predetermined change of state of the machine tool is that a power source of the machine tool has been switched from OFF to ON.

2. The monitoring device according to claim 1 , wherein
the machine tool is a wire electric discharge machine, and
the content of the event information is content urging replacement of a filter of the wire electric discharge machine.

3. The monitoring device according to claim 1 , wherein
the notifying section re-notifies by email.

4. The monitoring device of claim 1 , wherein the processor is configured to judge whether or not the content indicated by the event information has been resolved based on the event information, the state information, and a lookup table.

5. A monitoring device for monitoring an operation condition of a machine tool operatively connected to the monitoring device, the monitoring device comprising a processor configured to:
communicate with the machine tool to acquire event information generated by operation of the machine tool and state information of the machine tool from the machine tool;
after generation of the event information, and in response to an occurrence of a predetermined change of state of the machine tool corresponding to content indicated by the event information, judge whether or not the content indicated by the event information has been resolved, based on the event information and the state information; and
in response to judging that the content indicated by the event information has not been resolved after the occurrence of the predetermined change of state of the machine tool corresponding to the content indicated by the event information re-notify of the generated event information,
wherein the predetermined change of state of the machine tool is that automatic operation to automatically perform a processing has been started.

6. The monitoring device according to claim 5 , wherein
the content of the event information is content urging a periodic inspection of the machine tool.

7. A method of monitoring by which a monitoring device monitors an operation condition of a machine tool operatively connected to the monitoring device, the method including:
communicating with the machine tool to acquire event information generated by operation of the machine tool and state information of the machine tool from the machine tool;
after generation of the event information, and in response to an occurrence of a predetermined change of state of the machine tool corresponding to content indicated by the event information, judging whether or not the content indicated by the event information has been resolved, based on the event information and the state information; and
in response to judging that the content indicated by the event information has not been resolved after the occurrence of the predetermined change of state of the machine tool corresponding to the content indicated by the event information, re-notifying of the generated event information,
wherein the predetermined change of state of the machine tool is that a power source of the machine tool has been switched from OFF to ON.

8. The method of monitoring according to claim 7 , wherein
the machine tool is a wire electric discharge machine, and
the content of the event information is content urging replacement of a filter of the wire electric discharge machine.

9. The method of monitoring according to claim 7 , wherein
the notifying step re-notifies by email.

10. A method of monitoring by which a monitoring device monitors an operation condition of a machine tool operatively connected to the monitoring device, the method including:
communicating with the machine tool to acquire event information generated by operation of the machine tool and state information of the machine tool from the machine tool;
after generation of the event information, and in response to an occurrence of a predetermined change of state of the machine tool corresponding to content indicated by the event information, judging whether or not the content indicated by the event information has been resolved, based on the event information and the state information; and
in response to judging that the content indicated by the event information has not been resolved after the occurrence of the predetermined change of state of the machine tool corresponding to the content indicated by the event information, re-notifying of the generated event information,
wherein the predetermined change of state of the machine tool is that automatic operation to automatically perform a processing has been started.

11. The method of monitoring according to claim 10 , wherein
the content of the event information is content urging a periodic inspection of the machine tool.

Assignees

• Fanuc Corp

Inventors

• Takemoto Masanobu
• Hiraga Kaoru

Classifications

• G05B2219/49326

  Drill on laser machine, transfer to edm for operation on hole, adjust position · CPC title

• G05B19/406 Primary

  characterised by monitoring or safety (G05B19/19 takes precedence) · CPC title

• G05B2219/50185

  Monitoring, detect failures, control of efficiency of machine, tool life · CPC title

• B23H1/024 Primary

  Detection of, and response to, abnormal gap conditions, e.g. short circuits (preventing short circuits or other abnormal discharges by altering machining parameters using adaptive control B23H7/16) · CPC title

• B23H7/20

  for program control, e.g. adaptive · CPC title