Automatic monitoring interval-setting device, machine tool, and automatic monitoring interval-setting method

• US 9,910,424 B2
• Filed: 10/29/2012
• Issued: 03/06/2018
• Est. Priority Date: 10/29/2012
• Status: Active Grant

• Current Assignee: Fuji Company Limited
• Original Assignee: Fuji Machine Manufacturing Company Limited
• Inventors: Nagato, Kazuyoshi, Kumazaki, Shinya, Furukawa, Kazuya
• Primary Examiner(s): Karim, Ziaul
• Application Number:
  US14/436,615
• Publication Number:
  US 20150253759A1
• Time in Patent Office: 1,954 Days
• Field of Search: 700175
• CPC Class Codes: B23Q 17/0952 during machining
• CPC Class Codes: G05B 19/4065 Monitoring tool breakage, life or condition
• CPC Class Codes: G05B 2219/36046 Adapt, modify program as function of configuration of machine
• CPC Class Codes: G05B 2219/50185 Monitoring, detect failures, control of efficiency of machine, tool life
• CPC Class Codes: G05B 2219/50203 Tool, monitor condition tool
• CPC Class Codes: G05B 2219/50206 Tool monitoring integrated in nc control

Abstract

An automatic monitoring interval-setting device, a machine tool, and an automatic monitoring interval-setting method by which a monitoring interval monitoring a load applied to a tool is able to be automatically set are provided. An automatic monitoring interval-setting device includes a control device including a memory section which stores a program including G1 to G3 for processing a workpiece by using a tool, and a calculating section which is able to edit the program and executes a monitoring interval setting step of respectively inserting starting monitoring of a load applied to the tool into the front of G1 to G3 and ending the monitoring of the load into the rear of G1 to G3 with respect to the program.

Claims

1. An automatic monitoring interval-setting device, comprising:

a control device including

a memory section which stores a program including a processing command processing a workpiece by using a tool to be monitored, and

a calculating section which is able to automatically edit the program to execute a monitoring interval setting step, the monitoring interval setting step including

determining whether the processing command of the tool to be monitored is included in a current row of the program,

inserting a monitoring starting command starting monitoring of a load applied to the tool into a row of the program prior to the current row of the program including the processing command of the tool to be monitored, when the calculating section determines that the processing command of the tool to be monitored in included in the current row of the program, and

inserting a monitoring ending command ending the monitoring of the load into a row of the program subsequent to the row of the program including the processing command,

wherein control device is configured to change the load applied to the tool when the monitored load applied to the tool during the monitoring interval is greater than a predetermined value,

wherein when the program includes a plurality of successive processing commands, the calculating section respectively inserts the monitoring starting command into a row of the program prior to a row of the program including the first processing command and the monitoring ending command into a row of the program subsequent to a row of the program including the last processing command with respect to the program, in the monitoring interval setting step,

wherein the automatic monitoring interval-setting device further comprises a display device which is able to display data relevant to the program, and

wherein the calculating section respectively inserts a display starting command starting display of the load on the display device and a display ending command ending the display of the load such that the monitoring starting command and the monitoring ending command are inserted between the display starting command and the display ending command with respect to the program, in the monitoring interval setting step.

2. The automatic monitoring interval-setting device according to claim 1, wherein the calculating section executes a program selecting step of selecting the program which inserts the monitoring starting command and the monitoring ending command from a plurality of programs, before the monitoring interval setting step.

3. The automatic monitoring interval-setting device according to claim 1, wherein the calculating section executes a tool selecting step of selecting the tool which inserts the monitoring starting command and the monitoring ending command from a plurality of tools, before the monitoring interval setting step.

4. The automatic monitoring interval-setting device according to claim 1, wherein the calculating section executes an inspecting step of inspecting the monitoring starting command and the monitoring ending command which are inserted into the program, after the monitoring interval setting step.

5. The automatic monitoring interval-setting device according to claim 1, wherein the calculating section executes a saving step of storing the program into which the monitoring starting command and the monitoring ending command are inserted in the memory section, after the monitoring interval setting step.

6. The automatic monitoring interval-setting device according to claim 1, wherein the processing command is a G code, and

wherein the monitoring starting command and the monitoring ending command are M codes which are different from each other.

7. A machine tool comprising the automatic monitoring interval-setting device according to claim 1.

8. An automatic monitoring interval-setting method, comprising:

providing a program including a processing command processing a workpiece by using a tool to be monitored;

automatically editing the program to execute a monitoring interval setting step, the monitoring interval setting step including

determining whether the processing command of the tool to be monitored is included in a current row of the program,

inserting a monitoring starting command starting monitoring of a load applied to a tool into a row of the program prior to the current row of the program including the processing command of the tool to be monitored, when the calculating section determines that the processing command of the tool to be monitored in included in the current row of the program, and

inserting a monitoring ending command ending the monitoring of the load into a row of the program subsequent to the row of the program including the processing command; and

changing the load applied to the tool when the monitored load applied to the tool during the monitoring interval is greater than a predetermined value,

wherein when the program includes a plurality of successive processing commands, the monitoring starting command is inserted into a row of the program prior to a row of the program including the first processing command and the monitoring ending command is inserted into a row of the program subsequent to a row of the program including the last processing command, respectively, with respect to the program, in the monitoring interval setting step, and

wherein a display starting command starting display of the load on a display device which is able to display data relevant to the program and a display ending command ending the display of the load are respectively inserted such that the monitoring starting command and the monitoring ending command are inserted between the display starting command and the display ending command with respect to the program, in the monitoring interval setting step.

9. The automatic monitoring interval-setting method according to claim 8, further comprising:

a program selecting step of selecting the program which inserts the monitoring starting command and the monitoring ending command from a plurality of programs, before the monitoring interval setting step.

10. The automatic monitoring interval-setting method according to claim 8, further comprising:

a tool selecting step of selecting the tool which inserts the monitoring starting command and the monitoring ending command from a plurality of tools, before the monitoring interval setting step.

11. The automatic monitoring interval-setting method according to claim 8, further comprising:

an inspecting step of inspecting the monitoring starting command and the monitoring ending command which are inserted into the program, after the monitoring interval setting step.

12. The automatic monitoring interval-setting method according to claim 8, further comprising:

a saving step of storing the program into which the monitoring starting command and the monitoring ending command are inserted, after the monitoring interval setting step.

13. The automatic monitoring interval-setting method according to claim 8, wherein the processing command is a G code, and

wherein the monitoring starting command and the monitoring ending command are M codes which are different from each other.