JPH1153016A - Numerical controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the processing speed by omitting unnecessary computing processes and to prevent an adequate program check from being made. SOLUTION: Analytic data generated when a machining program is analyzed are stored in an analytic data file 40 through an analytic data storage 48. An editing confirmation part 42 judges whether or not the machining program and tool relative data are edited and when it is judged that the program and data are edited, an analytic data erasing process part 44 erases the analytic data in the analytic data file 40 and calculates a movement quantity according to analytic data obtained by analyzing the machining program stored in a machining program file 16. When it is judged that the program and data are not edited, an analytic data read-in part 50 reads in the analytic data stored in the analytic data file 40 and calculates the movement quantity to check the machining program.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical controller, and more particularly to a numerical controller for checking a machining program, for example, a NC program for an NC machine tool.

[0002]

2. Description of the Related Art In recent years, as a numerical control device, an NC (Numeri) which performs machining control of a machine tool for industrial production using numerical data has been used.
cal Control: Numerical control) Machine tools and the like are known.

[0003] Conventional numerical control device 6 such as an NC machine tool
0 is configured, for example, as shown in FIG.
That is, in FIG. 3, the numerical control device 60 includes a numerical control unit 62 that performs control using numerical data,
, A machining program file 66 in which a machining program for controlling the numerical controller 60 is stored, a tool-related data file 68 in which tool-related data of the numerical controller 60 is stored, and tool movement A display unit 70 for displaying the amount and the like on a screen using a graphic display or the like, and a machine tool 7 controlled by a numerical control unit 62
2 and a drive unit 7 for controlling the operation of the machine tool 72
4 and so on.

[0004] Further, as shown in FIG. 3, the numerical control unit 62 performs a machining program file creation / editing process in which a user creates / edits a machining program stored in a machining program file 66 using an operation unit 64. Part 76,
A tool data setting / change processing unit 78 in which a user sets / changes tool-related data stored in a tool-related data file 68 with the operation unit 64, and a machining program file reading process for reading a machining program stored in the machining program file 66 Unit 80, a machining program analysis processing unit 82 that analyzes the machining program read by the machining program file read processing unit 80, and a movement amount calculation process that calculates a movement amount based on the analysis data analyzed by the machining program analysis processing unit 82. And a movement amount output processing unit 86 that outputs the movement amount of the tool calculated by the movement amount calculation processing unit 84 to the drive unit 74.

FIG. 4 is a flow chart for explaining the checking operation of the machining program in the numerical controller 60 of FIG. Some steps of the flowchart in FIG. 4 also include components of the numerical control device 60 related to the steps in order to make the operation description easy to understand.

[0006] First, as shown in FIG.
A new machining program is created and edited by the machining program file creation / editing processing unit 76 using the operation unit 64, and the processed machining program is stored in the machining program file 66 (step S200).

Next, the user sets / changes the tool-related data using the tool-related data setting / change processing unit 78 using the operation unit 64, and stores the set / changed tool-related data in the tool-related data file 68. (Step S202). The operation of setting and changing the tool-related data in step 202 is omitted when the tool-related data has already been set and it is not necessary to change the data.

As described above, after performing steps S200 and S202 in the flowchart of FIG. 4, a tool path check for verifying whether the created machining program is correct or whether there is a syntax error or the like is performed. This is performed (Step S204).

In this tool path check, the machining program read by the machining program file read processing unit 80 shown in FIG. 3 is analyzed by the machining program analysis processing unit 82, and the movement amount of the tool is calculated by the movement amount calculation processing unit 84. Is calculated. The result of this tool path check is displayed on the display 70
Displays the moving amount of the tool.

The result of the tool path check (step S204) displayed on the display unit 70 is visually checked by the user to determine the result (step S206). If the result of the tool path check is not good, the process proceeds to NO and returns to the machining program file creation / editing process (step S200) again to repeat the above process, or the tool related data setting / change process (step S202) is performed again. Will be If the result of the tool path check is good in step S206, the process proceeds to YES, and the next trial machining (step S208).
Is performed.

[0011] The trial machining refers to checking a machining program by operating a machine with a machine lock or the like without actually machining the work, and confirming whether or not a tool collides with the work, or whether or not the tool has a stroke. It is to check whether or not it is possible to perform the processing. Even at the time of this trial machining, the machining program read by the machining program file read processing unit 80 is converted to the machining program analysis
The movement amount calculation processing section 84 calculates the movement amount of the tool.

The check of the trial machining in step S208 is performed in step S210. If the check result is not good, the process proceeds to NO, returns to the machining program file creation / editing process (step S200), and repeats the above process. Alternatively, the tool-related data setting / change processing (step S202) is performed again, and the trial machining processing (step S208) is performed.

If the check result of the trial machining in step S210 is good, the process proceeds to YES, and actual machining is performed (step S212). Also in the actual machining, the machining program read by the machining program read processing unit 80 is analyzed by the machining program analysis processing unit 82 in the same manner as in the tool path check (step S204). Thereafter, the movement amount calculated by the movement amount calculation processing unit 84 has been output to the drive unit 74 that controls the operation of the machine tool 72 by the movement amount output processing unit 86.

[0014]

However, in such a conventional numerical control device, even when the same machining program is operated, the analysis of the machining program is performed every time to calculate the amount of movement. Was. However, the machining program includes a complicated process that requires a very long processing time, for example, when correcting a tool diameter. Therefore, even when running the same machining program,
Since the same complicated processing as when the tool path check is performed is repeated every time, there is an inconvenience that useless processing is performed.

In the technique described in Japanese Patent Application No. 8-212467, which has already been proposed by the present applicant, syntax error checking and tool interference checking can be omitted, but the analysis processing is still complicated every time. There was a disadvantage that a complicated calculation had to be performed.

Further, the technique described in Japanese Patent Application Laid-Open No. 5-11831 has a disadvantage that when editing a machining program whose operation has been confirmed once, old analysis data stored before editing is directly used. was there. In other words, when the control program or the data related to the control is re-edited, the analysis data stored before the editing is used without erasing, and an inappropriate program check using the analysis data from before is performed. There are inconveniences.

The present invention has been made in view of the inconvenience of the prior art, and saves analysis data obtained by analyzing a control program, thereby improving the processing speed by eliminating useless calculation processing and improving the control speed. If the data related to the program or control is re-edited, the analysis data saved before editing is deleted, thereby preventing inappropriate program checks using the previously analyzed data. The purpose is to obtain a control device.

[0018]

In order to achieve the above object, a numerical control device according to the present invention comprises: a numerical control device having program check means for verifying whether a control program is correct; Program analysis means for analyzing a control program when the control program is checked by the program check means, analysis data storage means for controlling storage of analysis data analyzed by the program analysis means, and analysis data storage control means An analysis data file for storing the analysis data according to the above, an editing confirmation means for confirming whether or not the editing processing of the control program and the data relating to the control has been performed, and an editing of the control program and the data relating to the control by the editing confirmation means When it is confirmed that the processing has been performed, the analysis data file Analysis data erasing processing means for erasing the stored analysis data; and when the editing confirmation means confirms that the editing processing of the control program or the data relating to the control has not been performed, the analysis data is stored in the analysis data file. Analysis data storage confirmation means for confirming whether or not the analysis data is stored; and when the analysis data storage confirmation means confirms that the analysis data is stored in the analysis data file, the analysis data is stored in the analysis data file. Analysis data reading means for reading data from the control program or control-related data is not edited, and if the analysis data is not stored in the analysis data file, the analysis is performed by the program analysis means. The analysis data is stored in the analysis data file, and then the editing process is confirmed. When the analysis data is stored in the analysis data file, the control amount is calculated based on the analysis data and a program check is performed. The analysis data stored in the analysis data file is deleted by the analysis data deletion processing means, the control program is analyzed by the program analysis means, the control amount is calculated based on the analysis data, and the program is checked. Things.

According to this, when the program check of the control program is performed, if the editing process of the control program or the data related to the control is not performed and the analysis data is not stored in the analysis data file, the program The analysis data analyzed by the analysis means is stored in the analysis data file. As described above, since the analysis data is stored in the analysis data file, it is possible to calculate a control amount using the analysis data and perform a program check, thereby making it possible to omit useless calculation processing. The processing speed of the program check can be improved. Also, when checking the control program,
If the control program or data related to control is being re-edited, the analysis data saved in the analysis data file is deleted by the analysis data deletion processing means before editing. Inappropriate program check can be prevented.

The numerical control device according to the next invention further comprises a control program analysis data link file for storing link information for linking the control program with analysis data obtained by analyzing the control program, wherein the analysis data storage means The link information is stored in the control program analysis data link file, and the link information stored in the control program analysis data link file is deleted by the analysis data deletion processing means.

According to this, since the control program further includes a control program analysis data link file for storing link information for linking the control program and the analysis data obtained by analyzing the control program, the control program and the analysis data are linked and managed. It is possible to appropriately perform the program check of the control program.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a numerical controller according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an overall configuration diagram of a numerical controller 10 according to the present embodiment. The numerical control device 10 according to the present embodiment is implemented as an NC machine tool that performs a work on a workpiece while controlling a tool with numerical data.

This numerical control device 10 is shown in FIG.
Numerical control unit 12 for performing control with numerical data, operation unit 14 for operating the numerical control unit 12 by a user, numerical control device 1
A machining program file 16 in which a machining program as a control program for performing control of 0 is stored, a tool-related data file 18 in which tool-related data of the numerical controller 10 is stored, and a moving amount of a tool are graphically displayed. Display unit 20 for displaying on a screen, machine tool 22 controlled by numerical control unit 12, and machine tool 22
And a drive unit 24 for controlling the operation of.

In this embodiment, a machining program analysis data link file 38 and an analysis data file 40 are further provided.

In FIG. 1, the numerical control unit 12 includes a machining program file creation / edit processing unit 26 for creating / editing a machining program stored in the machining program file 16 by the operation unit 14; When the operation unit 14 determines that there is no analysis data in the tool data setting / change processing unit 28 that sets / changes the tool-related data stored in the tool-related data file 18 and the analysis data storage confirmation unit 46 described later A machining program file read processing unit 30 that reads a machining program from the machining program file 16; a machining program analysis processing unit 32 as a program analysis unit that analyzes the machining program read by the machining program file read processing unit 30; Analysis data analyzed by the analysis processing unit 32 A movement amount calculation processing unit 34 for calculating the movement amount of the tool based on the movement amount, and a movement amount output processing unit 36 for outputting the movement amount of the tool calculated by the movement amount calculation processing unit 34 to the drive unit 24. .

In addition to the above, the numerical controller 12 according to the present embodiment determines whether or not to execute the machining program file creation / editing process and the tool-related data setting / change process again according to the quality of the tool path check result. An edit confirmation unit 42 as an edit confirmation unit for judging the presence or absence of an edit. When the edit confirmation unit 42 determines that there is an edit, the link information stored in the machining program analysis data link file 38 and the link information stored in the analysis data file 40 are stored. Analysis data 19
Analysis data deletion processing unit 44 as analysis data deletion processing means for deleting the data, and analysis data storage confirmation as analysis data storage confirmation means for confirming the storage of analysis data when the edit confirmation unit 42 determines that there is no editing. Analysis data storing the analysis data analyzed by the processing program analysis processing unit 32 in the analysis data file 40 and link information for linking the processing program and the analysis data in the processing program analysis data link file The analysis data storage unit 48 as storage means and the result of the tool path check are good, and the edit confirmation unit 42 confirms that there is no change in the machining program / tool related data, and the analysis data storage confirmation unit 46 determines that there is analysis data. If it is determined, the analysis data file 40 previously stored analysis data Further comprising a like analysis data reading section 50 as the analysis data reading means for reading the.

Next, the checking operation of the machining program in the numerical controller 10 of FIG. 1 will be described with reference to the flowchart of FIG. Note that some steps of the flowchart of FIG. 2 also include components of the numerical control device 10 corresponding to predetermined steps in order to make the operation description easy to understand.

First, as shown in FIG.
A new machining program is created and edited by the machining program file creation / edit processing unit 26 using the operation unit 14, and the machining program is stored in the machining program file 16 (step S100).

Next, the user sets / changes the tool-related data by the tool-related data setting / change processing unit 28 using the operation unit 14 (editing process), and the set / changed tool-related data is displayed. It is stored in the tool-related data file 18 (step S102). This step 102
The setting / change processing of the tool-related data in is omitted when the tool-related data has already been set and it is not necessary to change the data.

After performing steps S100 and S102 in the flowchart of FIG. 2, a tool path check is performed to verify whether the created machining program is correct (step S104).

In this tool path check, the machining program read by the machining program file read processing unit 30 shown in FIG. 1 is analyzed by the machining program analysis processing unit 32. The analysis data analyzed by the machining program analysis processing unit 32 is stored and stored in the analysis data file 40 by the analysis data storage unit 48 (step S1).
06).

Further, the analysis data storage unit 48 stores link information for linking the processing program and the analysis data in the processing program analysis data link file 38 (step S108). Then, the movement amount of the tool is calculated by the movement amount calculation processing unit 34, and the result of the tool path check is displayed on the display unit 20 such as the movement amount of the tool.

The result of the tool path check (step S104) displayed on the display unit 20 is visually determined by the user (step S110). If the result of the tool path check is not good, the process proceeds to NO, returns to the machining program file creation / editing process (step S100) and repeats the above process, and the tool-related data setting / change process (step S102) is performed again. Will be

As described above, when the machining program file creation / editing process and the tool-related data setting / change process are performed, if the editing confirmation unit 42 in the numerical control unit 12 in FIG. The processing section 44 deletes the link information stored in the machining program analysis data link file 38 and the analysis data in the analysis data file 40.

Thereafter, a tool path check (step S)
As in the case of 104), the presence / absence of analysis data is confirmed by the analysis data storage / confirmation unit 46. However, it is determined that there is no analysis data, and the machining program is read from the machining program file 16 by the machining program file read processing unit 30, and the machining program is read. The analysis processing unit 32 analyzes the machining program.

If the result of the tool path check is good in step S110, the operation proceeds to YES, and the next trial machining (step S112) is performed. At this time, the above-mentioned editing confirmation unit 42 confirms that there is no change in the machining program or the tool-related data. If there is no change in the machining program or the tool-related data, the presence / absence of the analysis data is confirmed by the analysis data storage / confirmation unit 46, and if there is the analysis data, the analysis data reading unit 50 has previously stored the analysis data in the analysis data file 40. The analysis data is read.

When the analysis data storage / confirmation section 46 determines that there is no analysis data, the machining program is read from the machining program file 16 by the machining program file read-in processing section 30 and the machining program analysis processing section 32 is executed as in the conventional example. Is analyzed by After that, the movement amount calculation processing unit 3 based on the analysis data or the read data.
In step 4, the amount of movement of the tool is calculated, and it is confirmed whether the tool does not collide with the work or whether machining can be performed within the stroke of the machine. In this trial machining, the machining program is checked by operating the machine with a machine lock or the like without actually machining the work.

In this way, the check result of the trial machining is determined in step S114. If the check result of the trial machining is good, the process proceeds to YES and the actual machining is performed (step S116). In the case of actual machining, the same processing is performed as in the case of the trial machining described above (step S112). After that, the movement amount of the tool calculated by the movement amount calculation processing unit 34 is output by the movement amount output processing unit 36 to the drive unit 24 that controls the operation of the machine tool 22.

As described above, according to the numerical controller 10 according to the present embodiment, the tool path is checked at least once (step S104), and the trial machining is performed (step S11).
2) Or, the machining program in which the actual machining (step S116) has been performed can store the analysis data at that time, so that the analysis data can be used for the next and subsequent times, thereby complicating the complicated processing such as tool diameter correction. There is no need to repeat the calculation, and the overall processing speed of the numerical control device can be improved.

When a machining program or tool-related data related to machining is re-edited and changed, the analysis data saved before editing is deleted, and the analysis data is created again. Thus, the risk of operating on previously stored analysis data can be avoided.

[0042]

As described above, according to the numerical controller according to the present invention, since the analysis data obtained by analyzing the control program is stored, useless calculation processing can be omitted, and the control program can be omitted. Check processing speed can be improved.

According to the numerical control device of the next invention,
When the control program and data related to control are re-edited, the analysis data saved before editing is deleted, so that inappropriate program check using the old analysis data is prevented. Can be.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating an overall configuration of a numerical control device according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating a check operation of a machining program in the numerical control device illustrated in FIG. 1;

FIG. 3 is a block diagram showing the entire configuration of a conventional numerical control device.

FIG. 4 is a flowchart illustrating a check operation of a machining program in a conventional numerical control device.

[Explanation of symbols]

Reference Signs List 10 Numerical control device, 12 Numerical control unit, 16 Machining program file, 20 Display unit, 26 Machining program file creation / edit processing unit, 28 Tool-related data setting / change processing unit, 30 Machining program file read processing unit, 32 Machining program Analysis processing section, 34 movement amount calculation processing section, 38 control program analysis data link file, 42 editing confirmation section, 44 analysis data deletion processing section, 46 analysis data storage confirmation section, 48 analysis data storage section, 50 analysis data reading section.

Claims (2)

[Claims] 1. A numerical control device comprising a program check unit for verifying whether or not a control program is correct, wherein the program check unit analyzes the control program when checking the control program. Analysis data storage means for controlling storage of analysis data analyzed by the program analysis means; analysis data file for storing analysis data by the analysis data storage control means; and editing processing of the control program and data relating to control. Editing confirmation means for confirming whether or not the editing data of the control program or control-related data has been edited by the editing confirmation means, the analysis data stored in the analysis data file Analysis data erasure processing means for erasing; An analysis data storage confirming means for confirming whether or not analysis data is stored in the analysis data file when it is confirmed that a control program or data relating to control is not edited by the step; Analysis data reading means for reading the analysis data from the analysis data file when it is confirmed by the data storage confirmation means that the analysis data is stored in the analysis data file, comprising: If the editing process has not been performed and the analysis data file does not store the analysis data, the analysis data analyzed by the program analysis means is stored in the analysis data file, and then the editing process is confirmed. If the analysis data is stored in the analysis data file, The control amount is calculated based on the program check, and if the control program or the data related to the control is edited, the analysis data stored in the analysis data file is deleted by the analysis data deletion processing means. A numerical control device for analyzing the control program by the program analysis means, calculating a control amount based on the analysis data, and performing a program check. 2. A control program analysis data link file for storing link information for linking the control program and analysis data obtained by analyzing the control program, wherein the analysis data storage unit converts the link information into the control program analysis data link. 2. The numerical control apparatus according to claim 1, wherein the link information stored in the control program analysis data link file is deleted by the analysis data deletion processing means while the link information is stored in a file.