JPH0772845B2 - NC data creation device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for creating NC data for controlling a numerical control machine (hereinafter referred to as NC machine), and in particular, an NC suitable for each format of a plurality of types of NC machines. The present invention relates to an NC data creation device that can create data for each NC machine.

2. Description of the Related Art In recent years, NC machines have been widely used in automatic processing machines and the like. As a means for creating NC data for controlling such NC machines, there is what is called automatic programming.
This is done by using a computer, and process data showing the specific operation contents of the NC machine, for example, the order of use of tools, coordinate values, and the like, which are necessary for causing the NC machine to make a series of movements such as tool exchange drilling. An NC suitable for the format of the NC machine (including the controller) by processing information such as cutting conditions according to a predetermined program
It is to be converted into data. According to such automatic programming, accurate NC data can be created in a shorter time than manual programming by hand. The device described in Japanese Utility Model Laid-Open No. 58-32505 is an example.

Problems to be Solved by the Invention By the way, since the format of the NC data, that is, the code and arrangement of the NC code used for the NC data is different for each NC machine, it is described in, for example, JP-A-61-25212. As described above, in order to use the NC machining information between different models, the code part of the NC machining information is replaced with the code of the desired model, and the numerical part of the NC machining information is converted to the desired model. A converter for NC machining information that replaces numerical values has been proposed.

However, such a NC machining information converter converts NC machining information, that is, NC data, into NC data for different models. NC data could not be created.

Means for Solving Problems The present invention has been made to solve the above problems, and the gist thereof is to provide a plurality of types of NC data for controlling a plurality of types of NC machines individually. (A) Standard data conversion means for converting process data representing specific operation contents of the NC machine to be used into standard data of a predetermined fixed format. And (b) the standard data for each NC
Machine specification data storage means for storing, for each NC machine, specification data necessary for converting into NC data suitable for the machine format, and (c) stored in the machine specification data storage means. And NC data conversion means for converting the standard data into the NC data based on the specified data.

In the NC data creating apparatus as described above, first, the process data representing the specific operation content of the NC machine is converted into standard data in a predetermined format by the standard data converting means, and then The NC data converting means converts the standard data into NC data suitable for the format of the machine to be used, based on the specification data stored in the machine specification data storage means.

That is, the NC data creation device of the present invention uses standard data.
NC machine specification data storage means that stores the specification data required to convert to NC data that conforms to the format of each machine and standard data based on the specification data.
The NC data conversion means for converting to data is configured separately, and the specification data storage means stores the specification data of multiple types of NC machines. It is possible to create NC data suitable for each type of NC machine.

Therefore, as described above, process data that can be understood by people without specialized knowledge is converted to standard data, and the standard data is converted to NC data based on machine specification data. Even a worker without specialized knowledge can easily create NC data for different models.

Further, since the above NC data conversion means is commonly used regardless of the type of NC machine, a dedicated program showing all the processing procedures for converting process data into NC data is provided for each NC machine of a plurality of types. There is an advantage that the device can be configured easily and inexpensively as compared with the case of storing it in the data creating device.

On the other hand, since the machine specification data storage means and the NC data conversion means are separately configured as described above, it becomes easy for the user to create or change the specification data of the NC machine. . Therefore, if the above-mentioned machine specification data storage means can freely write and rewrite specification data, a new NC machine in which specification data is not stored in the machine specification data storage means is adopted. In doing so, the user can create the specification data and store it in the machine specification data storage means. Further, it becomes possible to freely change the already-stored specification data based on the experience of the user, etc., and the degree of freedom in design regarding the movement of the NC machine is improved.

In addition, as a concrete mode of the standard data, the specification data, and the NC data, for example, the standard data is an operation content represented by the process data in a constant data table having items related to all operations of the plurality of types of NC machines. Is written, and the specification data is specified by the information specifying the items corresponding to the items related to the NC machine corresponding to the specification data among all the items of the data table, and the information. Including information designating a conversion processing method for converting the operation content of the item into an NC code suitable for the NC machine, and information designating the arrangement of the converted NC code according to the conversion processing method The NC data consists of the NC code and its
It is composed by what is represented by the arrangement of NC codes.

Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

First, FIG. 1 is a block diagram showing the hardware configuration of the NC data creating apparatus of this embodiment.
(Central processing unit) 12, first storage device 14, second storage device
It consists of a printer 18 and a tape puncher 20. The first storage device 14 stores a program memory 22 in which a series of NC data conversion processing logic for converting the process data into standard data and then further converting the standard data into NC data, and the standard data into individual data. The specification data memory 24 stores, for each NC machine, the specification data required to convert the NC data suitable for the NC machine format. The second storage device 16 stores a plurality of types of NC machines and A process data memory 26 in which process data for each product to be processed is stored in advance, and a standard data memory 28 in which standard data obtained by converting the process data is stored.
And an NC data memory 30 that stores NC data obtained by converting the standard data. Also, the above CPU12
Performs signal processing according to the NC data conversion processing logic stored in the program memory 16 of the first storage device 14 and outputs a signal representing the NC data obtained as a result to the printer 18
And output to the tape puncher 20. In this embodiment, the specification data memory 24 corresponds to machine specification data storage means.

Here, the above-mentioned process data is provided with information necessary for processing one product using a specific NC machine. For example, tool exchange, drilling,
When performing a series of movements such as tapping, the tool No.
And tool information such as magazine number, machining start point, cutting feed start point, cutting feed end point, machining end point, and other coordinate value information,
It is made up of information such as tool rotation speed, feed rate, cutting conditions such as necessity of cutting oil, etc., and is stored in the process data memory 26 in advance by the input device 10 for each type of NC machine and each product to be machined.

Further, the standard data is the above-mentioned process data having different contents depending on the type of NC machine or the product to be machined, which is expressed in a predetermined fixed format. For example, as shown in FIG. The operation content represented by the process data is written in a constant data table having items related to all operations of a plurality of types of NC machines. Standard data is created for each motion code such as tool change, drilling, and tapping. For coordinate values, NC
Depending on the machine specifications, both absolute value and incremental value are provided as data so that both absolute method and incremental method can be dealt with, and the coordinate values are associated with the turn / tilt of the table on which the work is placed. Since the coordinates on the workpiece side rotate, the spindle side is set as a reference. The above-mentioned FIG. 4 is a visual representation of the contents of standard data for easy understanding.

Further, the specification data consists of NC code data, an NC code conversion table, and format conversion instruction data,
It is stored in the specification data memory 24 by the input device 10 in advance, and can be written and rewritten if necessary. The NC code is a code that encodes the operation content of one item in the standard data to match the format of the NC machine corresponding to the specification data.
By the code and its arrangement, NC data suitable for the format of the NC machine is created.

The NC code data is the information of the NC code that can be used for the NC machine. For example, as shown in FIG.
NC word (a) that can be used in NC machine, maximum digit number (b) that can be used for each code, and numerical data such as rotation speed and feed rate are used as they are for NC code. A code conversion necessity (c) indicating the indirect designation method for conversion and a minimum setting unit (d) of the coordinate value and the movement amount are included. Further, the NC code conversion table is necessary in the case of the NC machine of the above-mentioned indirect instruction system. For example, FIG. 6 is an example of information showing the NC code corresponding to the rotation speed of the spindle. That is, in FIG. 6, for example, the rotation speed of the spindle "630 rpm" is N of "S56".
It is represented by C code. These NC code data and NC code conversion table are registered for each individual NC machine.

On the other hand, the format conversion instruction data is for instructing the conversion method and the arrangement of NC data for each item of one motion code in the standard data. Extraction destination information that specifies the corresponding one, conversion processing information that specifies the conversion processing method for converting the operation content of the item specified by that information into an NC code that is compatible with the NC machine, and the conversion processing method Output destination information that specifies the arrangement of the NC code converted according to the above. Figure 7 shows
An example of such format conversion instruction data is shown. For example, when the motion code "5181" is described, this "5181" corresponds to the punching of the standard data, and "X2012106" shown in the first row. Is the format conversion instruction data for one item.

The format conversion instruction data “X2012106” will be described in detail. The first “X” is the NC word, and the subsequent “20” is conversion processing information indicating a conversion processing method. Regarding the conversion processing method, conversion processing methods for all NC machines, such as those that output standard data as is, NC
It is pre-registered by classifying it into one that combines standard data into words and outputs, one that converts and outputs by the NC code conversion table, one that performs conversion processing specific to the NC machine and outputs. "20" indicates one of the conversion processing methods. Further, the following "121" is information for instructing the extraction destination from the standard data, and indicates the item number of the standard data, that is, the number of data from the beginning, and the last "06". Is information indicating the output destination of the NC code, and indicates the storage position of the NC data table that stores the NC code.

As is clear from FIG. 7, the format conversion instruction data is registered for each motion code for each NC machine. Further, in each motion code, it is divided into some blocks based on the operation content. Each line in each motion code in FIG. 7 represents one block.

And, the NC data creation device configured as described above,
It has the functions shown in the block diagram of FIG. This function is exhibited by executing the NC data conversion processing logic stored in the program memory 22. First, the NC used by the input device 10
When the machine and product number are input, the corresponding process data is read from the process data memory 26 and supplied to the standard data conversion block 32. The standard data conversion block 32 constitutes a standard data conversion means, and converts the supplied process data into the standard data for each one motion code such as tool exchange and drilling, and stores it in the standard data memory 28.

The standard data stored in the standard data memory 28 is read out together with the specification data of the NC machine to be used which is stored in the specification data memory 24 and is converted into an NC data conversion block.
Supplied to 34. The NC data conversion block 34 constitutes NC data conversion means, and converts standard data into NC data of a format suitable for the NC machine based on the specification data and stores it in the NC data memory 30.

FIG. 3 is a flowchart of a program stored in the program memory 22 for executing the functions of the NC data conversion block 34. Hereinafter, a more specific description will be given according to this flowchart.

First, in step S1, the standard data stored in the standard data memory 28 is read for each motion code, and in step S2, it is determined whether or not the read motion code is the leading motion code. It If it is the head motion code, the specification data relating to the NC machine, that is, the NC code data, the NC code conversion table, and the format conversion instruction data are read from the specification data memory 24 in step S3, and then step S4 is performed. When executed, the data corresponding to the motion code read in step S1 is extracted from the format conversion instruction data.

As described above, the format conversion instruction data is registered by dividing it into several blocks for each motion code.Hereafter, standard data is converted into NC data for each block sequentially according to the format conversion instruction data. To be done. That is, first in step S5,
The data of the predetermined item of the standard data is extracted according to the extraction destination information of the first format conversion instruction data of the first block, and in step S6, the conversion processing method indicated in the conversion processing information of the format conversion instruction data. The data extracted from the standard data is converted into the NC code according to the above, and in step S7, the NC code is stored in a predetermined position of the NC data table according to the output destination information of the format conversion instruction data. The steps S5 to S7 are repeated by the number of format conversion instruction data in one block, and the NC code is sequentially stored at a predetermined position in the NC data table. Then, if it is determined in step S8 that the conversion process for one block is completed, then step S9 is executed, and NC data in which a plurality of NC codes are stored in predetermined positions are stored in the NC data memory 30. It

Further, the above steps S5 to S9 are repeated for the number of blocks in one motion code, and the NC data is sequentially stored in the NC data memory 30 for each block. When it is determined in step S10 that the conversion process of one motion code is completed, step S11 is subsequently executed to determine whether or not the conversion process of the final motion code is completed. That is, it is determined whether or not the standard data read in step S1 is the final motion code, and if it is not the final motion code, execution of step S1 and subsequent steps is repeated following step S11, and the next motion is executed. The standard data of the code is read
Converted to NC data. When all the motion code conversion processing is completed in this way, step S11
Is YES, and a series of NC data conversion processing ends.

When executing step S6, the converted NC
Whether or not the code is suitable for the NC machine is determined based on the NC code data. This is because when the format conversion processing data is created and changed by the user, it may not always be accurate. Further, in this step S6, the
A predetermined NC code is extracted from the NC code conversion table.

Returning to FIG. 2, the NC stored in the NC data memory 30.
The data is then printed by a signal that represents that NC data.
By being supplied to 18 and tape puncher 20,
Output as NC data list and paper tape. 8th
The figure is an example of the above NC data list. "T", "B",
The NC code is a series of codes connected to NC words such as "X", and NC data is represented by this NC code and its arrangement. The paper tape is a medium for transmitting the created NC data to the NC machine, and by mounting the paper tape on the NC machine, the NC machine is controlled according to the created NC data.

As described above, the NC data creating apparatus of the present embodiment temporarily converts the process data into the standard data, reads the specification data of the relevant NC machine from the specification data memory 24, and converts the specification data into a format suitable for the NC machine. Since it is designed to be converted into NC data, it is possible to create NC data suitable for multiple types of NC machines with a single machine. Since the above process data can be understood even by those without special knowledge, even if the process data is prepared, an operator without special knowledge can easily create NC data for different models.

Moreover, the specification data memory 24 for storing the specification data,
The NC data conversion block 34, which converts standard data into NC data based on the specification data, is configured separately, and the NC data conversion block 34 is commonly used regardless of the type of NC machine. In comparison with the case where a dedicated program showing all the processing procedures for converting process data into NC data is stored in the NC data creation device for multiple types of NC machines, the device is simpler and cheaper to configure. There is an advantage to get.

Further, since the specification data memory 24 and the NC data conversion block 34 are separately configured as described above, it is possible to easily create or change the specification data of the NC machine on the user side. In addition, since the specification data in the specification data memory 24 can be freely written and rewritten by the input device 10, when the new NC machine is adopted, the specification data can be changed by the user. Need only be created and registered in the specification data memory 24, and there is no need to purchase a dedicated NC post processor as in the conventional case. Moreover, since it is possible to change the already registered specification data based on the experience of the user, for example, instead of directly moving to the target position in the X-axis-Y-axis plane, first move in the X-axis direction. After moving it, move it in the Y-axis direction.
The degree of freedom in design regarding the movement of the NC machine is improved.

Although one embodiment of the present invention has been described in detail with reference to the drawings, the present invention can be implemented in other modes.

For example, in the above-mentioned embodiment, the process data is stored in advance for each type of NC machine and each product, but such process data may be directly input from the input device 10.

Further, although the specification data memory 24 of the above-described embodiment is capable of writing and rewriting the specification data, the effect of the present invention can be obtained even if the specification data cannot be written or rewritten.

Further, the specification data of the above embodiment is composed of the NC code data, the NC code conversion table and the format conversion instruction data, and the content of the specification data is appropriately set as necessary.

Further, in the above embodiment, the created NC data is output from the tape puncher 20, but it is also possible to output it directly to the NC machine.

Although not illustrated one by one, the present invention can be implemented in variously modified and improved modes based on the knowledge of those skilled in the art without departing from the spirit thereof.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a hardware configuration of an NC data creating device according to an embodiment of the present invention. FIG. 2 is a block diagram for explaining the function of the NC data creating device of FIG. FIG. 3 is a flow chart for executing the NC data conversion block function in FIG. Fourth
The figure is a diagram for explaining an example of standard data. Fig. 5 shows NC
It is a figure explaining an example of code data. FIG. 6 is a diagram for explaining an example of the NC code conversion table. FIG. 7 is a diagram illustrating an example of format conversion instruction data. FIG. 8 is a diagram showing an example of an NC data list output from the printer in the NC data creation device of FIG. 24: Specification data memory (machine specification data storage means) 32: Standard data conversion block (standard data conversion means) 34: NC data conversion block (NC data conversion means)

Claims (3)

[Claims] 1. A device for creating a plurality of types of NC data for controlling a plurality of types of numerically controlled machines according to the format of each individual machine, and process data representing the specific operation contents of the machine to be used. Standard data conversion means for converting the standard data into standard data of a predetermined fixed format, and an NC adapted to the standard data format of the standard data.
Machine specification data storage means for storing specification data necessary for conversion into data for each machine, and the standard data based on the specification data stored in the machine specification data storage means. NC to convert to the NC data
An NC data creation device comprising: a data conversion means. 2. The NC data creation device according to claim 1, wherein the machine specification data storage means is capable of freely writing and rewriting the specification data. 3. The standard data is one in which the operation content represented by the process data is written in a constant data table having items related to all operations of the plurality of types of machines, and the specification data is Information that specifies items corresponding to items related to the machine corresponding to the specification data among all items in the data table, and the operation contents of the items specified by the information are converted into NC codes suitable for the machine. For specifying a conversion processing method for the above, and information for specifying the arrangement of the NC code converted according to the conversion processing method, the NC data,
The NC data creation device according to claim 1 or 2, which is represented by an NC code and an arrangement of the NC code.