JP2603219B2 - NC data creation device having machining process control unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an NC (numerical control) data creation device,
The present invention relates to an NC data creation device having a machining process control unit for continuously creating machining process NC data for a plurality of different workpieces when creating NC data for machining a plurality of different workpieces.

(Technical background of the invention and its problems) Conventionally, when creating NC data for machining a work using an NC data creating apparatus, the work shape, machining range, and use of one work each time. Tools and cutting conditions are set, and NC data is created based on these conditions. FIG. 6 (A) is a conceptual diagram showing an example of such a conventional NC data creation process. As shown in FIG. 6 (A), a work W10 composed of two parts W11 and W12 having different shapes.
In order to create NC data for processing the workpiece W, the shape data of the workpiece 10 and the respective processing ranges and the processing conditions P11 and P12 of the parts W11 and W12 are input to process the workpiece W10. NC data D11 and D12 are created. As described above, a single workpiece can be continuously created in the same NC data creation process even if there are a plurality of machining steps. However, as shown in FIG. 6 (B),
In order to create NC data for processing a further different workpiece W20 in addition to this workpiece W10, first, as described above, after creating NC data D11 and D12 for one workpiece,
Each of the processing ranges and the processing conditions P21 and P22 must be input in accordance with the parts W21 and W22 of the next work W20, and the NC data D21 and D22 must be separately generated in the same manner. Therefore, after creating the NC data for one work and then creating the NC data for the next work, the input operation has to be performed again each time, and the computer is fully operated without waste. In order to create NC data, the operator always waits on the side,
Immediately after the NC data creation processing for one work is completed, NC data for the next work must be created, which not only places a burden on the operator but also causes a waste time. In particular, in the case of an automatic programming system that creates NC data for processing a three-dimensional workpiece, the NC data is large even for one workpiece and requires a long computer processing time. However, there is a problem that the waiting time is long, which not only imposes a great burden but also lengthens the dead time.

(Object of the Invention) The present invention has been made under the circumstances described above,
An object of the present invention is to continuously process NC data for a plurality of workpieces by managing an NC data creation process when creating NC data for processing a plurality of different workpieces using an NC data creation apparatus. An object of the present invention is to provide an NC data creation device having a machining process control unit that can be created by using the method.

(Summary of the Invention) The present invention relates to an NC data creating apparatus for creating the NC data for machining the work by inputting the work shape data and the machining process data. A machining process setting unit for setting machining process data including a file name, a machining process number, and an NC file name, a machining process data memory for storing the machining process data, and a machining order for the workpiece.
A machining process for executing the NC data creation is determined, and a machining process determining unit for reading out corresponding data from the machining process data stored in the machining process data memory; and the machining process data transmitted from the machining process data determining unit. A machining process control unit including a machining process management unit that analyzes machining process data and starts NC data creation processing, and creates NC data based on the machining process data transmitted from the machining process control unit. When the creation of the NC data in the machining order is completed, an NC data creation unit that transmits an NC creation end signal for reading the machining process data in the next machining order to the machining process control unit,
Is provided.

(Embodiment of the Invention) According to the present invention, when creating NC data for machining a plurality of different workpieces using an NC data creating apparatus, a machining process control unit is provided to manage the NC data creating process. Thus, the NC data for the plurality of workpieces can also be automatically and continuously created. That is, the two workpieces W10 and W20 as shown in FIG. 6 are also processed as shown in FIG.
W11, W12 and W21, 22 and the above processing conditions P11, P12 and P21, P2
By inputting 2, the machining process control unit controls the NC data creation process so that the NC data D11, D12, D21, D22 for the two workpieces W10 and W20 can be created continuously. is there.

FIGS. 3 and 4 (A) to 4 (F) show an example of machining process data for two different workpieces to which the present invention is applied. The machining process data includes shape data names MDLA, MDLB and MDLB for each workpiece. Processing command file COM
A, COMB, and machining data No. 1, 3, 5, 1, 2, 3 of the workpiece and NC file names NCA1 to NCB3, respectively, and are data in which the machining processes are selected in accordance with the machining order. Here, the shape data name and the processing command file name are files separately created and stored in advance by a separate processing unit (not shown), and a plurality of processing steps are sequentially included in this processing command file. It is registered. FIG. 3 is a table summarizing the machining process data, and FIGS. 4A to 4F show the respective machining processes by NC file name in the order of creation. Here, the fourth
FIGS. 3A to 3C show the machining process of NC file names NCA1, NCA3 and NCA5 among the machining process data of the shape data name MDLA and the machining command file name COMA in the creation order 1 to 3 shown in FIG. 4 (D) to 4 (F) show the NC file name NCB1 of the machining process data of the shape data name MDLB and the machining command file name COMB in the creation order 4 to 6 shown in FIG.
3 shows the processing process of NCB3. The process of creating such machining process NC data will be described below with reference to FIGS.

FIG. 1 is a block diagram showing an example of an NC data creating apparatus for realizing the present invention. In FIG.
This is an input device for inputting data such as a tool to be used and cutting conditions, and the machining process setting section 20 comprises the above-mentioned shape data name, machining command file name, machining step and NC file name based on the inputted data. The machining process data is set and stored in the machining process data memory 21. Here, the shape data and the processing command file data are separately created in advance by a separate processing unit (not shown), and stored in a shape data memory 30 and a processing command memory 40, respectively, which will be described later. The machining process determining unit 22 determines the next machining process to be executed in accordance with the machining order, and reads the corresponding data from the machining process data stored in the machining process data memory 21. Here, in the example of FIG. 3, the first machining process is a shape data name MDLA, a machining command file name COMA, a machining step No1, and an NC file name NCA1. The machining process management unit 23 analyzes the machining process data sent from the machining process determination unit 22, displays the machining process data on the CRT display device 6 via the machining process display unit 24, and displays the machining process data Of the processing command file name COMA and the processing step
The No. 1 is transmitted to the processing condition setting unit 4 and the NC file name NCA1 is transmitted to the NC data generating unit 5 to start the NC data generating process. Here, the machining process setting unit 20, the machining process data memory 21, the machining process determination unit described above
The machining process control unit 2 is composed of a machining process management unit 23 and a machining process display unit 24. Therefore, the shape data input unit 3 reads out the shape data corresponding to the shape data name MDLA instructed from the processing process setting unit 23 from the shape data memory 30 and transmits the shape data to the processing condition setting unit 4 and also transmits the shape data. It is displayed on the CRT display device 6 via the shape data display unit 31. This processing condition setting unit 4
Then, the machining command file name COMA and the machining command file and machining process data corresponding to the machining process No. 1 instructed from the machining process management unit 23 are read from the machining command memory 40, and machining conditions are set. The data is transmitted to the NC data creating unit 5 together with the shape data obtained from the input unit 3. The NC data creation unit 5 creates NC data based on the shape data and the machining conditions obtained from the machining condition setting unit 4 and generates an NC file corresponding to the NC file name NCA1 specified by the machining process management unit 23. And the NC data is displayed on the CRT display device 6 via the NC data display unit 51. When the NC data creation unit 5 finishes the NC data creation as described above, the NC data creation end signal is stored in the machining process memory 21 via the machining process management unit 23 and the machining process determination unit 22. .

The operation of creating NC data by the NC data creating apparatus of the present invention having the machining process control unit having such a configuration will be described below with reference to the flowchart of FIG.

First, using the keyboard 1, the shape data name MD of the work
LA, MDLB, machining command file name COMA, COMB, machining process No
Set machining process data consisting of 1,3,5,1,2,3 and NC file names NCA1 to NCB3, and save the machining process data memory
It is stored in 21 (step S1). Therefore, the machining process determination unit 22 determines the next machining process to be executed in accordance with the machining order, and uses the machining process data stored in the machining process data memory 21 as the corresponding data (the first machining process in the example of FIG. 3). Data is the shape data name MDL
A, processing command file name COMA, processing step No.1, NC file name NCA1) are read (steps S2, S3). Then, the machining process management unit 23 analyzes the machining process data sent from the machining process determination unit 22 and outputs the shape data name MDLA of the machining process data to the shape data input unit 3.
Then, the processing command file name COMA and the processing step No. 1 are transmitted to the processing condition setting unit 4, and the NC file name NCA1 is transmitted to the NC data generation unit 5 (step S4). Therefore, the shape data input unit 3 reads out the shape data corresponding to the shape data name MDLA instructed from the processing process management unit 23 from the shape data memory 30 (step S5). The processing command file name and the processing step data corresponding to the processing command file name COMA and the processing step No. 1 instructed from the management unit 23 are read out from the processing command file memory 40 to set the processing conditions (step S6), and the NC data is created. The unit 5 creates NC data based on the shape data and the processing conditions obtained from the shape data input unit 3 and the processing condition setting unit 4, and corresponds to the NC file name NCA1 specified by the processing process management unit 23. It is stored in the NC data memory 50 as an NC file (step S7). When the NC data creation unit 5 finishes the NC data creation as described above, the NC data creation end signal is sent to the machining process management unit 23 and the machining process determination unit.
The data is stored in the machining process memory 21 via 22. When the creation of the NC data in one machining order is completed in this way, the process returns to step S2 to read the next machining process data. When the creation of the NC data is completed for all the machining process data of all the works as described above (step S3), the work, the machining process and the machining order are continuously performed for the plurality of works as described above. Automatically controlled NC data can be automatically and continuously created.

(Effect of the Invention) As described above, the NC having the machining process control unit of the present invention
According to the data creation device, the NC data for processing a plurality of different works is controlled by continuously controlling the processing processes such as the work, the processing steps, and the processing order. Data can be automatically created continuously without the need for operator input operation each time data creation is completed, and there is no need for the operator to be constantly waiting at the computer, and the computer can be fully moved without waste. become able to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of an NC data generating apparatus for realizing the present invention, FIG. 2 is a flowchart for explaining the operation of the present invention, and FIGS. 3, 4 (A) to (F) and FIG. 5
FIGS. 6A and 6B are diagrams for explaining an operation example of the present invention, and FIGS. 6A and 6B are diagrams for explaining a conventional NC data creation method. 1 ... Keyboard, 2 ... Processing process control unit, 3 ...
Shape data input unit, 4 ... machining condition setting unit, 5 ... NC data creation unit, 6 ... CRT display device, 20 ... machining process setting unit, 21 ... machining process data memory, 22 ... machining process determination , 23: Machining process management unit, 24: Machining process display unit, 30: Shape data memory, 31: Shape data display unit, 40: Machining command memory, 50: NC
Data memory, 51 ... NC data display.

Claims (1)

(57) [Claims] 1. An NC data creating apparatus for creating NC data for machining a work using the shape data and machining process data of the work, comprising: a shape data name, a machining command file name,
A machining process setting section for setting machining process data including a machining process number and an NC file name, a machining process data memory for storing the machining process data, and a machining process for executing NC data creation in accordance with the machining order of the workpiece. And, a machining process determining unit that reads the corresponding data from the machining process data stored in the machining process data memory, and analyzes the machining process data sent from the machining process data determining unit,
A machining process control unit that starts the NC data creation process; and a machining process control unit that includes: creating NC data based on the machining process data transmitted from the machining process control unit and creating NC data in one machining order And an NC data creation unit for transmitting an NC creation end signal for reading out the machining process data in the next machining order to the machining process control unit when the process is completed.