JPH01298406A - Method for editing part program - Google Patents

Abstract

PURPOSE:To edit an NC (numeric control) part program excluding the wasteful quick feeding and the saving action of a tool by setting a working sequence to a working area and editing a tool locus in accordance with the set working sequence. CONSTITUTION:Working sequence data DB for the working area are stored into a working sequence data storing means 12. An NC part program editing working means 13 reads N-th working area data from a working area data storing means 3 by sequence data N from the working sequence data storing means 12. The tool area in the N-th working area is taken out from an input NC part program inputted through an input means 4 and by the taken tool locus, an output NC part program is edited. Thus, since the part program, in which the movement of the tool between working areas passes through the shortest distance, is edited, the quick feeding and the saving action of the tool are executed only to the necessary minimum and an efficient working is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an NC (numerical control) part program editing method for efficient machining.

(Prior Art) In order to mass produce large silver and gold products such as automobile parts, special molds are required for forming, cutting, and other processes.

FIG. 5 is a cross-sectional side view showing an example of a forming mold, and FIG. 6 is a cross-sectional side view showing an example of a cutting mold. Since the shape of a part of the cutting die is the same as that of a part of the forming die, the tool trajectory required to process the cutting die from the NC part program for processing the forming die. It is possible to take out the tool path and edit the NC part program for machining the cutting die using this tool path.

FIG. 7 is a block diagram showing an example of a device for implementing the conventional part program editing method, in which the machining area data setting means 2 stores the machining area data DA input through the keyboard 1 in the machining area data storage means 3. and input NC part program I inputted via manual means 4.
NC Bart program editing processing means for extracting tool locus data in the machining area data from the machining area data storage means 3 from the NF, editing the output bird program ONP with the retrieved tool locus data, and outputting the edited output bird program ONP via the output means 6. It is composed of 5.

In such a configuration, for example, when editing an NC part program for machining a cutting die PC as shown in FIG. Set while looking at the screen (Figure 9). On the other hand, an NC part program for machining the forming die PF as shown in FIG.
By extracting and editing the tool locus within, it is possible to obtain an NC part program for the cutting die PC to be machined along the tool locus indicated by the arrow shown in FIG. According to this NC part program, the tool is advanced by cutting feed in the machining area A-J, and outside the machining area, the tool is retracted upward with rapid traverse and approaches the starting point of the next machining area with rapid traverse.

(Problem to be Solved by the Invention) The above-mentioned machining area often has many complex shapes, so it is necessary to extract the tool locus of the machining area of the cutting die from the NC part program for machining the forming die. If you edit the NC part program for cutting mold machining, the tool will have to make many unnecessary rapid feeds and retreat movements, resulting in a long machining time.
It had the disadvantage of being a C part program.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a method for editing an NC part program that does not include unnecessary rapid forwarding or retracting operations of a tool.

(Means for Solving the Problems) The present invention sets a machining area in a workpiece, inputs a part program that can be used when machining the workpiece, and uses the input part program to create a machining area in the machining area. The present invention relates to a part program editing method for extracting a tool trajectory and editing a part program using the extracted tool trajectory. This is achieved by editing the trajectory.

(Function) According to the part program editing method of the present invention, a part program is edited in which machining is performed in the order added to the machining areas, and the six movements of the tool between machining areas are made to pass through the shortest distance. The rapid feeding and retracting operations of the tool are performed only to the minimum necessary extent, and efficient machining can be carried out.

(Embodiment) FIG. 1 is a block diagram showing an example of a device for realizing the part program editing method of the present invention, corresponding to FIG. . This device includes a machining order data setting means 11 that stores machining order data DB for each machining area manually using a keyboard 1 in a machining order data storage means 12, and a human-powered NC part program INF that is manually inputted via a human power means 4. From there, the tool path data in the machining area data from the machining area data storage means 3 read out using the machining sequence data from the machining sequence data storage means 12 is extracted, and the output NC part program NNP is edited with the retrieved tool path data. Output means 6
NC part program editing processing means 1 outputting via
3 is provided in place of the conventional NC Bart program editing processing means 5.

In such a configuration, an example of its operation will be explained with reference to the flowchart in FIG. 2. In the NC part program editing processing means 13, the initial setting (N-1)
, the presence or absence of an unprocessed machining area in the machining area data from the machining area data storage means 3 is checked (step S2), and if there is no unprocessed machining area in the machining area data, all processing is terminated. - On the other hand, in the judgment step S2,
If there is an unprocessed machining area in the machining area data, the Nth machining area data is read from the machining area data storage means 3 using the machining order data N from the machining order data storage means 12 (step S3). Then, step S4) extracts the tool locus in the Nth machining area from the input NC part program manually inputted via the human power means 4, and executes the output NC part program '4e' using the extracted tool locus (step S55). ). Then, the next setting (N←N+1) is performed (step S6), and the process returns to step S2 to repeat the above-described operation.

Processing of the cutting die PC shown in FIG. 8 using the method of the present invention.

For example, if you edit the NC Bart program for
By setting the machining order data as shown in the figure, it is possible to obtain an NC bart program that performs machining along the tool path indicated by the arrow C shown in FIG. According to this NC part program, after cutting a designated machining area, the tool is retracted upward or downward in rapid traverse to approach the starting point of the next machining area over the shortest distance.

(Effects of the Invention) As described above, according to the part program editing method of the present invention, it is possible to edit a part program in which the tool passes through the part outside the machining area only once in rapid traverse for movement. , rapid processing can be performed, and processing costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a device that implements the part program editing method of the present invention, FIG. 2 is a flowchart explaining an example of its operation, and FIG. 3 is a diagram of processing order data used in the method of the present invention. Figure 4 is a perspective view showing an example of a machining trajectory when an NC Bart program for machining a cutting mold is edited by the method of the present invention, and Figure 5 is a cross section showing an example of a forming mold. 6 is a cross-sectional side view showing an example of a cutting mold, FIG. 7 is a block diagram showing an example of a device that implements the conventional part program editing method, and FIG. 8 is a processing diagram of the cutting mold. FIG. 9 is a perspective view showing an example of the area, FIG. 9 is a view showing the machining area setting, FIG. 10 is a perspective view showing an example of the machining trajectory in the forming die, and FIG. 11 is the NC for machining the cutting die. FIG. 3 is a perspective view showing an example of a machining trajectory when a part program is edited using a conventional method. DESCRIPTION OF SYMBOLS 1... Keyboard, 2... Machining area data setting means, 3... Machining area data storage means, 4... Input means, 5.13... NC Bart program editing processing means,
6... Output means, 11... Machining order data setting means,
12... Processing order data storage means. Applicant's agent Yu Yasugata 3 No. 1 Nagitsuri 2 Figure 3 $4 Figure $7 Figure 8 Figure 9

Claims (1)

[Claims] 1. Set the machining area of the workpiece, input a part program that can be used when machining the workpiece, extract the tool trajectory within the machining area from the input part program, and create the part using the retrieved tool trajectory. A part program editing method for editing a program, characterized in that a machining order is set in the machining area, and the tool trajectory is edited in accordance with the set machining order.