JPH04289053A - Conversion of cad standard data - Google Patents

Abstract

PURPOSE:To add processing information in converting standard element data for universal CAD into internal form data for forming NC data. CONSTITUTION:Standard element data are read for every element, the element data are displayed, and if processing information is added or not to the element is questioned(S3, S4). For adding the processing information, the processing information is inputted, and its values are changed if they are set by modal (S6-S8). The processing information is then added to the element to convert the data into internal form data (S9). In case the processing information is not to be added, the processing information set by the modal is eliminated (S12), and the element data are converted into the internal form data as they are. Set of the processing information for each element in forming NC data is not required, and formation of the NC data is facilitated, thereby the NC data formation from the standard element data for universal CAD can thus be performed effectively as a whole.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is an automatic programming device for creating NC data, which converts standard element data created by general-purpose CAD (computer-aided design) into internal format data for creating NC data. Regarding data conversion methods.

0002

[Prior art] General-purpose CAD created with a CAD system
Input standard element data (shapes such as arcs and line segments) into an automatic programming device, and the automatic programming device
General-purpose CAD standard element data created by an AD system is converted into internal format data for creating NC data, and then NC data is created from this internal format data.

[0003] When converting the standard element data into internal type data, each standard element data is checked one by one and converted into internal type data one by one. The standard element data mentioned above is graphic data such as arcs and line segments, and tolerances,
Processing information such as finishing allowance is not included. Therefore, after converting to internal format data, when creating NC data, machining information such as finishing allowance is input for each element or modally, and when creating and outputting drawings, machining information such as tolerances etc. Information is input and drawings are output together with processing information such as tolerances.

0004

[Problem to be solved by the invention] From internal format data
When creating C data, sequentially inputting machining information such as tolerances and finishing allowance for each element data is cumbersome, troublesome, and inefficient.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a CAD standard data conversion method that allows processing information to be added when converting standard element data to internal type data.

[0006]

[Means for Solving the Problems] The present invention provides for each element data read by an automatic programming device when converting standard element data created with general-purpose CAD into internal format data for creating NC data. Display a question on the screen of the display device as to whether or not to add processing information for each
When the operator inputs processing information, the processing information is added and converted to internal format data, and if the operator does not input processing information, the loaded element data is converted directly to internal format data, and each element data is sequentially converted. Convert to internal format data. In addition, if the processing information is modal for all or a large number of element data, it is set as modal in advance, each element data is sequentially read, and a question about whether to add or change the processing information is displayed on the display. When the operator inputs that processing information is to be added, modal data is displayed, and if necessary, this data is changed or added, and the value of the processing information is determined. Then, processing information is added to convert the standard element data into internal format data. If it is input that processing information is not to be added, the read element data is converted as is into internal format data, and each element data is sequentially converted into internal format data.

[0007]

[Operation] When converting general-purpose CAD standard element data created by a CAD system into internal model data, the standard element data is checked one by one and converted into internal model data. Using this process, when each standard element data is read out, a question is displayed as to whether or not to add processing information, and when the operator inputs that processing information is to be added, if processing information has already been set in the modal, , the modal data is displayed, and if the operator changes or inputs the processing information without changing it, the processing information is added and converted into internal model data. Furthermore, if it is input that processing information is not to be added, the processing information set in the modal is also deleted, and the standard element data is directly converted to internal type data. As a result, when creating NC data from internal type data, there is no need to add processing information while checking the internal type data of each element, making the operation simple and efficient.

[0008]

[Example] Figure 4 shows a general-purpose C created using a CAD system.
It is a schematic diagram of a system for creating NC data etc. from AD standard element (figures such as arcs and line segments) data using an automatic programming device.

[0009] Using the figure creation function in the CAD system, the created figure data is temporarily stored in a storage device as a database, and the figure data is converted into general-purpose CAD standard element data using the CAD standard data creation function and stored on a floppy disk. Stored on disk, etc. The general-purpose CAD standard element data stored on the floppy disk or the like is input to an automatic programming device, converted into internal format data for creating NC data, and stored as a database. Then, based on this internal format data, the contour shape of each element is output as a drawing using an XY plotter or the like using a drawing output function. Further, NC data is created using the NC data creation function, and the NC data is printed on a paper tape or the like. Further, a tool trajectory is drawn on the CRT display device.

Conventionally, the process shown in FIG. 4 has been performed, but the present invention adds processing information when converting CAD standard element data input from a floppy disk or the like into internal format data. It differs from conventional methods in that it is converted into internal format data.

FIG. 2 is a block diagram of the main parts of the hardware of an automatic programming device implementing an embodiment of the present invention.
1 is a processor (hereinafter referred to as CPU); 2 is a ROM in which a control program for controlling the NC automatic programming device is stored; 3 is a ROM that stores various system programs and general-purpose CAD standard element data loaded from the floppy disk FL; RAM for storing results of arithmetic processing, etc.; 4, NC data storage memory for storing NC data created by the NC automatic programming device; 5, keyboard; 6, disk controller; 7, graphic display (hereinafter referred to as CRT). , 8 is a paper tape punch unit for printing NC data onto a paper tape, and 9 is an XY plotter for outputting graphics. Each of these elements 1 to 9 is connected by a bus 10.

[0012] Also, as a floppy disk FL,
Data storage disk or C for storing NC data
A disk that stores general-purpose CAD standard element data created with the AD system and a system disk that stores various system programs are prepared in advance. , a program for implementing the data conversion method of the present invention is stored.

Therefore, the system program and general-purpose CAD standard element data for converting the general-purpose CAD standard element data into internal format data for creating NC data in the present invention are input from the floppy disk FL, and are stored in the RAM.
When the automatic programming device is switched to the internal format data conversion mode after the data is stored in the CRT 6, the screen of the CRT 6 is changed to a screen as shown in FIG. in this case,
Only "1/Conversion, 2/Settings, 3/Auxiliary, 0/End" displayed on the left side of Figure 3 is displayed. First, select the "2/Settings" item with a cursor, etc., and select the standard element data. In addition to setting code conversion etc. that converts codes such as character strings to codes of internal format data, it is also possible to set processing information such as the same tolerance and finishing allowance for all or many standard element data. If so, input and set the processing information as this modal data. Then, select "1/conversion" and enter the conversion command, C
PU1 starts the conversion process to internal type data shown in the flowchart in FIG.

First, the number of elements N is read from the standard element data stored in the RAM 3 (step S1), the index i is set to "1" (step S2), and the i-th element data indicated by the index i is read. (Step S3), as shown in FIG. 3, a question as to whether or not to display the data of the i-element in the right corner of the CRT screen, to display the shape of the element in a graph with a broken line, and to add processing information. (Step S4)
).

[0015] Then, when the operator inputs "YES" from the keyboard 5 to add processing information, the process moves from step S5 to step S6, and the CPU 1 adds the processing information items and the modal data that have already been set. Display on the CRT6 screen. FIG. 3 shows an example in which "tolerance" and "finishing allowance" are displayed as machining information. Therefore, the operator selects the processing information item with the cursor and inputs the processing information data from the keyboard 5, or if the already displayed modal data is fine, it can be used as a setting key without changing the data. If the "OK" key of the soft key is operated (steps S7 and S8), processing information is added to the data of the i element and converted to internal format data, and the converted data is stored in the RAM 3, and The figure of the element that was displayed as a broken line is displayed as a solid line (step S9).

Then, the index i is incremented by "1" (step S10), and it is determined whether the value of the index i exceeds the total number of elements N read in step S1 (step S11). , returns to step S3 again and executes the above-described process.

In step S5, if the processing information is not to be added, the operator inputs "NO" from the keyboard 5. At this time, the CPU 1 deletes the processing information that has already been set as modal data (step S12).
), the process moves to step S9, and the element data read in step S3 is directly converted into internal format data without adding processing information to the element.

The above process is then executed for each element, and when the index i exceeds the total number of elements N of the standard element data, the conversion process to internal format data is completed.

[0019] When NC data is created using the NC data creation function of the automatic programming device based on the data converted to internal format data, machining information such as tolerances and finishing allowances have already been set. Because there is no need to set this information, you can immediately set up the NC.
The NC data can be converted to data, and the NC data can be output to the NC data storage memory 4 or paper tape. Further, the tool trajectory can also be drawn on the screen of the CRT 6.

Furthermore, by using the drawing output function of the automatic programming device, it is possible to output drawings from the XY plotter 8 that include information necessary for drawings such as tolerances.

[0021]

[Effect of the invention] The present invention adds processing information when converting general-purpose CAD standard element data created with a CAD system to internal format data for creating NC data, so that NC data can be created. When doing so, there is no need to input these data, the operation when creating NC data is simplified, and the step of checking each element is only required when converting to internal format data, making the whole process more efficient.

[Brief explanation of the drawing]

FIG. 1 is a flowchart of processing for creating internal format data from general-purpose CAD standard element data according to an embodiment of the present invention.

FIG. 2 is a block diagram of main parts of an automatic programming device implementing the same embodiment.

FIG. 3 is a diagram showing an example of a CRT display screen in the same embodiment.

FIG. 4 is a schematic diagram of a system for creating NC data, etc. using an automatic programming device from general-purpose CAD standard element data created using a CAD system.

[Explanation of symbols]

1 Processor (CPU) 2 ROM 3 RAM 4 NC data storage memory 5 Keyboard 6 Disk controller 7 Graphic display (CRT) 8 Paper tape punch unit 9 XY plotter 10 Bus FL Floppy disk

Claims (2)

[Claims] [Claim 1] When an automatic programming device converts standard element data created with general-purpose CAD into internal format data for creating NC data, processing information is added to each read element data. If the processing information is input, the processing information will be added and converted to internal format data, and if the processing information is not input, it will not be read. CAD that converts the element data as it is into internal format data, and sequentially converts each element data into internal format data.
Standard data conversion method. 2. When an automatic programming device converts standard element data created with general-purpose CAD into internal format data for creating NC data, modal processing information is provided for all element data. Set in advance, read each element data sequentially, display a question on the screen of the display device as to whether or not to add and change processing information for each element data, and input the processing information as adding processing information. and the modified processing information is added and converted to internal format data, and unless a command to add processing information is input, the modal data is deleted and the loaded element data is converted to internal format data as is, A CAD standard data conversion method that sequentially converts each element data into internal format data.