JP2003186510A - Nc (numerical control) data correction method and system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To moderate NC data by checking and compiling the NC data before product-processing by an NC machine tool. <P>SOLUTION: A reception part 17 receives the NC data for storing to an NC data memory 19, then an NC data checking part 23 reads the NC data to check the NC data. If there are no errors as a result of the checking, a compiling part 27 converts the NC data into binary data to be stored into a binary data memory 29, while if there are errors in the NC data, the errors are stored into an error data memory 25. A display/edit part 33 reads the error data and creates error information to be displayed on a display part 35, an operator, etc., corrects the errors, based on the displaying of the error information. Through NC data moderation according to the error corrections described, quick and accurate NC product-processing is performed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and system for optimizing NC data, and more particularly to an NC data compiling error-free NC data check before controlling an NC machine tool. The present invention relates to a data optimization method and its system.

[0002]

2. Description of the Related Art Generally, for example, NC data for controlling an NC machine tool for sheet metal working is created by a CAD / CAM automatic programming system in an office and transmitted to the NC machine tool side via a LAN or the like. . In addition, the NC data created by the outsourcing etc. is read into the NC machine tool by FD etc. and processed.

Further, the NC is directly displayed on the display of the NC machine tool.
In some cases, data was created and sheet metal products were processed.

Then, the operator of the NC machine tool, for example, visually confirms the NC data displayed on the display unit, and roughly checks the NC data before operation.

Further, in the NC machine tool, when machining is performed based on NC data, the NC data is machined while converting the NC data line by line into binary data.

[0006]

[Problems to be Solved by the Invention] Such a conventional NC
The data optimization method has the following problems.

That is, for example, N created in an office or the like
The C data may be checked by the office side but may contain an error for some reason. Once NC
When sent to the machine tool side, the NC machine tool operator
It is impossible in time to completely check the data. For this reason, there has been a problem that a product defect is generated by performing product processing without performing a complete check.

Further, there is a problem that the NC data stored in the FD or the like delivered from the subcontractor or the NC data directly created cannot be completely checked, resulting in a processing defect.

On the other hand, the NC data is converted into binary data by 1
When processing is performed while converting each row, there is a problem that the conversion time is added to the processing time and the processing time becomes long.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and the NC machine tool is adapted to optimize NC data, which is a program describing the process of operation of the NC machine tool. A method for optimizing NC data performed on the side of an integrally provided control computer, the method comprising storing NC data in a memory of the control computer,
Performing an error check on the NC data,
When an error exists in the C data, a step of creating an error message that is information related to this error and displaying it on the display unit, a step of prompting the correction of the error based on the error message, Compiling into binary data which is the final control data of the machine tool.

Preferably, the control computer performs error checking and compiling when reading NC data.

The error message displayed on the display unit preferably includes one or more of error content, cause of occurrence, and cancellation method.

It is also desirable to include a step of displaying a history of error messages on the display section.

Then, the NC data, which is a program describing the process of the operation of the NC machine tool, is optimized by the N
A NC data optimization system, which is provided on the control computer side integrally provided to the C machine tool, and comprises means for storing NC data in the memory of the control computer;
A means for performing an error check on the C data, and a means for, when an error exists in the NC data, creating an error message which is information relating to the error and displaying the error message on the display unit,
It is preferable to include means for urging correction of the error based on the error message, and means for compiling NC data having no error into binary data which is the final control data of the NC machine tool.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

1 and 2, the NC data optimization system 1
The schematic configuration of is shown.

Referring to FIG. The NC data optimization system 1 of this example is a CAD / CA provided on the office side.
CAD while displaying graphics on the M system 3 and the display unit 5
CAD / CAM data memory 9 for storing CAD / CAM data (machined shape) created by the / CAM unit 7.
, An NC data creation unit 11 that reads CAD / CAM data and creates NC data, and an N that stores NC data
The C data memory 13 and this NC data are transferred to the NC machine tool 3
7 control computer (for example, AM-NC
Etc. 2), and a transmitter 15 for transmitting via a communication network such as LAN 39.

On the other hand, the NC machine tool 37 is integrally provided with the control computer 2. The control computer 2 includes a receiving unit 17 that receives the NC data that is transmitted.
And an NC data memory 1 for storing the received NC data
9 is equipped.

The control computer 2 has a CNC section 21 for controlling the NC machine tool 37 based on NC data. The CNC unit 21 reads NC data and has predetermined contents (for example, format, code number,
An NC data check unit 23 that performs an error check of an address necessary for a command) and NC data that has no error as a result of the error check (for example, described in text data such as G code) is converted into binary data. A compiling unit 27, a binary data memory 29 for storing the compiled binary data,
A control unit 31 for reading binary data and immediately controlling the NC machine tool 37 is provided. Here, for example, N
The method to check C data (G code etc.) is NC
There is a method of detecting an error by comparing the NC data table in which the correct format of data is registered with the NC data read in each line.

Further, since the binary data converted by the compiling unit 27 is binary data such as 0 and 1, it is possible to directly control the servomotor and the like. And
For all NC data, error checking of the NC data and conversion processing to binary data are performed. As a result, NC data is optimized and error-free control data converted into binary data is created.
In addition, quick processing can be performed.

On the other hand, as a result of the error check by the NC data check unit 23, when there is an error in the NC data, this NC data is stored in the error data memory 25. The display editing unit 33 displays the content of the error associated with the NC data, the coping method, the error location, etc.
To display. For example, when the G code requiring the XY coordinates does not have the XY coordinates, a function of displaying a message for inputting the XY coordinates on the display unit 35 is provided.

Here, for example, a man-machine interface (MMI) utilizing the screen display function of Windows (registered trademark) is used.

The hardware configuration of the control computer 2 will be described with reference to FIG. This control computer 2 has a personal computer CPU 51 and a hard disk 53 built-in,
A liquid crystal display screen (display unit) 55 such as an LCD is provided. Then, data is made to flow by a bus (for example, ISA / PCI) 57. On the hard disk 53, for example, OS software 59 (for example, Wind
ows (registered trademark), and the MMI application software 61 and the like for acquiring the machining status and alarm information of the NC machine tool and exchanging information between a person and a computer are stored.

The operation of the NC data optimization system 1 will be described with reference to FIGS.

In step S301, the CAD / CAM system 3 provided in the office is used to process the shape (CAD).
/ CAM data) and the like are created.

In step S303, the N
C data (for example, G code) is created.

In step S305, the transmitting unit 15 causes the NC
The data (one line) is transferred to a control computer (for example, AM-
NC) Send to 2 side.

Referring to FIG. In the transmission of step S305, the edit button 403 of the screen GN1 displayed on the display unit 35 is pressed. Then, the editing operation button 401 is pressed to execute the operation.

In step S307, the NC data check unit 23 sequentially reads the NC data transmitted.

In step S309, NCs sequentially read
Check the data line by line for errors. As a result of this error check, when there is an error in the NC data, the process proceeds to step S311. On the other hand, if there is no error, the process proceeds to step S315.

In step S311, the error content is displayed on the display unit 35 (see FIG. 5).

In step S313, correction of an error is prompted, and the error is corrected.

FIG. 5 shows a screen GN2 for displaying error contents. That is, if there is an error as a result of the error check, the error content (for example, the G number is invalid, the address required for the command does not exist, etc.), the cause (for example, the G number is invalid), and the NC data in error Location,
And a cancellation method (for example, modifying the program) is displayed in the display field 501. Thereby, for example, the operator can easily remove the error in the NC data.

When the history display 503 is pressed, the contents of all the errors that have occurred so far are displayed. This makes it easy to confirm the correction of the error. When the history deletion button is pressed, the error history is deleted.
Then, when the end button is pressed, the error check is performed again, and when the error disappears, the process proceeds to step S315.

In step S315, the compiling unit 27 converts the NC data having no error into binary data and stores the binary data in the binary data memory 29.

In the processing of step S317, all NC
Determine whether or not processing (checking, compiling) has been performed on the data. When it is determined that the processing has been performed on all NC data, the processing proceeds to step S319.
When it is determined that the processing has not been performed on all the NC data, the processing returns to step S305 and the processing from step S305 to step S315 is performed again.

In the processing of step S319, the control unit 31 reads the binary data from the binary data memory 29 and controls the NC machine tool 37. As a result, rapid processing is performed without processing defects.

The present invention is not limited to the examples of the embodiments described above, but can be implemented in other modes by making appropriate changes.

[0039]

As described above, according to the present invention, for example, for example, NC data created in an office or the like, NC data sent from an outsourcer, or NC created directly on the display unit of the control computer. Data can be checked for errors before processing. Therefore, there is an effect that processing defects of the product are eliminated.

Further, since the NC machine tool is controlled after converting all NC data into binary data, there is an effect that efficient machining is performed.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an outline of an NC data optimization system.

FIG. 2 is a schematic diagram showing an outline of a hardware configuration of an NC data optimization system.

FIG. 3 is a flowchart illustrating a flow of an NC data optimization system.

FIG. 4 is an explanatory diagram illustrating a normal screen.

FIG. 5 is an explanatory diagram illustrating a screen that displays error contents.

[Explanation of symbols]

1 NC data optimization system 2 control computer 21 CNC Department 23 NC data check section 27 Compilation Department 33 Display editor

Claims (5)

[Claims] 1. An NC that optimizes NC data, which is a program describing a process of operation of an NC machine tool, on a control computer side integrally provided in the NC machine tool.
A data optimization method, comprising: storing NC data in a memory of the control computer; performing an error check on the NC data; and, when there is an error in the NC data, information relating to the error. Creating an error message and displaying it on a display unit; prompting correction of the error based on the error message; compiling error-free NC data into binary data that is the final control data of the NC machine tool. A method for optimizing NC data, comprising: 2. The NC data optimizing method according to claim 1, wherein the control computer performs error checking and compiling when reading the NC data. 3. The NC data optimizing method according to claim 1, wherein the error message displayed on the display unit includes one or more of an error content, a cause of occurrence, and a cancellation method. 4. The method according to claim 1, further comprising the step of displaying a history of error messages on a display unit.
NC data optimization method described. 5. An NC which optimizes NC data, which is a program describing a process of operation of an NC machine tool, on a control computer side integrally provided in the NC machine tool.
A data optimization system, means for storing NC data in the memory of the control computer, means for performing an error check on the NC data, and information relating to the error when the NC data has an error. Means for creating an error message and displaying it on the display unit; means for urging the correction of the error based on the error message; and means for compiling the error-free NC data into binary data which is the final control data of the NC machine tool. An NC data rationalization system comprising: