JPH0523950A - Numerical control information composer - Google Patents

Abstract

PURPOSE:To provide the above numerical control information composer which is able to rearrange any motion in each process without entailing any change of machining information. CONSTITUTION:An operator stores a machining position in a machining position storage part 8 in advance via an input part 1, while it prestores optimized data in an optimization setting table 9. An optimization executing part 10 partitions a machining range to a specified area according to the optimized data read out of the optimization setting table 9. In addition, such a motion as reading the machining position in the partitioned area from the machining position storage part 8 and setting it is executed as to the whole area, thus a positioning range of a tool is optimized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for creating NC information for controlling machining in a numerical control (NC) machine tool.

[0002]

2. Description of the Related Art FIG. 8 is a block diagram showing an example of a conventional NC information creating apparatus, in which machining information SIM is stored in a machining information storage unit 2 via an input unit 1. The used tool data is stored in advance in the used tool determination table 6, and when the processing classification SMC of the stored processing information SIM is read by the tool development execution unit 3, the used tool data corresponding to this processing classification SMC. The DT is read from the tool decision table 6 to be used and developed by the tool development execution unit 3. The process order data is stored in advance in the process order determination table 7. When the process information SIP of the stored processing information SIM is read by the process determination execution unit 4, the process order data corresponding to the process information SIP is stored. The DPN is read by the process decision execution unit 4,
The process is determined according to the process sequence data DPN and the tool development data DTD from the tool development execution unit 3. Then, the NC data creation unit 5 creates NC data based on the process data DPN from the process determination execution unit 4 and outputs the NC data to the outside.

An example of the operation of such a configuration will be described with reference to the flowchart of FIG. The operator inputs the machining information from the input unit 1 based on the drawing shape of the workpiece (step S1) and stores it in the machining information storage unit 2. The tool development execution unit 3 automatically develops the used tool data read from the used tool determination table 6 based on the machining classification read from the machining information storage unit 2 (step S2). The process determination execution unit 4 determines a process according to the process sequence data read from the process sequence determination table 7 based on the process information read from the machining information storage unit 2 and the tool development data from the tool development execution unit 3 (steps). S3). Then, the NC data creation unit 5 determines the NC based on the process data from the process determination execution unit 4.
Data is created (step S4), and all processing is completed.

[0004]

In the above-mentioned conventional NC information generating apparatus, the machining with the same tool is integrated to minimize the number of times of tool exchange and shorten the total machining time. ing. For example, φ1 shown in FIG.
1 total of 2 drill holes, M12 tap holes, and M10 tap holes
The processing of the center drill and the chamfering can be integrated in one process to make a total of seven processes. However, in the conventional NC information creation device, the operation in each process cannot be rearranged even if the rearrangement for each process is possible, and the machining information must be changed in order to rearrange the operation in each process. There was a problem that it had to be. The present invention is made from the above-mentioned circumstances, and an object of the present invention is to change the operation in each process without changing the machining information.
It is to provide a C information generating device.

[0005]

The present invention relates to a device for creating NC information for controlling machining in an NC machine tool, and the above object of the present invention is to store a machining position in advance. A storage means, a second storage means for storing optimization data in advance, a machining range is divided into predetermined areas according to the optimization data read from the second storage means, and a machining position in the divided area is defined as the machining position. It is achieved by providing the optimization execution means for executing the operation of reading from one storage means and setting the same for all areas according to the optimization data, and optimizing the positioning distance of the tool.

[0006]

In the present invention, the machining range is divided into predetermined areas by the optimization processing, the machining position is searched for each area, and the tool positioning distance is determined. Therefore, the machining information can be changed. Needless to say, it is possible to change the operation in each process.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an example of the NC information creating apparatus of the present invention in correspondence with FIG. 8, and the same components are designated by the same reference numerals and the description thereof will be omitted. The machining position SMP of the machining information SIM stored in the machining information storage unit 2 is stored in the machining position storage unit 8. The optimization data DFN is stored in advance in the optimization determination table 9, and the tool according to the machining position SMP and the process data DPN read from the machining position storage unit 8 and the process determination execution unit 4 to the optimization execution unit 10. The positioning distance is optimized based on the optimization data DFN read by the optimization execution unit 10. And N
The C data creation unit 5 creates NC data based on the optimized process data DPNN from the optimization execution unit 10 and outputs the NC data to the outside.

An example of the operation in such a configuration will be described with reference to the flowchart of FIG. The operator inputs machining information from the input unit 1 based on the drawing shape of the workpiece (step S11) and stores it in the machining information storage unit 2. The tool expansion executing unit 3 automatically expands the used tool data read from the used tool determination table 6 based on the processing classification read from the processing information storage unit 2 (step S12). The process determination execution unit 4 determines a process according to the process sequence data read from the process sequence determination table 7 based on the process information read from the machining information storage unit 2 and the tool development data from the tool development execution unit 3 (step S13). Optimization execution unit 10
Optimizes the tool positioning distance according to the machining position and the tool data read from the machining position storage unit 8 and the process decision executing unit 4 based on the optimization data read from the optimization determination table 9 (step S14). .. Then, the NC data creation unit 5 creates NC data based on the optimized process data from the optimization execution unit 10 (step S1).
5), all processing is completed.

FIG. 3 is a main part of the NC information creating apparatus of the present invention shown in FIG.
It is a block diagram which shows the detailed example of 0. Processing information storage unit 2
The machining start position SMPS among the machining positions SMP from is stored in the machining start position storage unit 81, and the machining end position SMP
E is stored in the processing end position storage unit 82. The stored machining start position SMPS and machining end position SMPE are read by the machining area determination unit 101 and the machining position determination unit 102 so that the machining area and the machining position are mutually determined and the positioning distance of the tool is optimized. Is becoming

In such a configuration, an operation example will be described with reference to the flowchart of FIG. 4. The machining start position storage unit 81 and the machining end position storage unit 82 sequentially store the machining start position and the machining end position in the order in which they are instructed. Yes (step S21). On the other hand, the processing area determination unit 101 performs optimization (for example, the division method described in P131 to 134 of Iwanami Lecture Information Chemistry 19 Optimization (published by Iwanami Shoten)) so that the processing range shown in FIG. It is divided into areas (squares in the figure) (step S22). Then, the initial area is selected by optimization and set as the current area (steps S23 and S24), and the processing start position in the current area is sequentially searched from the processing start position storage unit 81 (step S25). In this area, processing will be performed in the order of retrieval.

Then, it is determined whether or not there is a machining start position in the current area (step S26), and if there is no machining start position in the current area, the process proceeds to step S29. If there is a machining start position in the current area, the machining starts. The start position and the corresponding end position are read from the processing start position storage unit 81 and the processing end position storage unit 82 (step S27), and the processing end position is set in the current area (step S28). Then, returning to step S25, the above-described processing is repeated in the current area. When the machining start position is lost in the current area (step S26), it is confirmed whether the area still remains (step S29). If the area still remains, the next area is selected by optimization and set as the current area (steps S30 and S31).
Returning to step S25, the above-mentioned processing is repeated in the current area. When the above processing is performed for all areas (step S29), all processing is ended.

FIGS. 6 and 7 are views showing an example of a process created by the NC information creating apparatus of the present invention. FIG. 6 shows a drill system and FIG. 7 shows a milling system. The machining start position is searched in a radial pattern of areas, areas, areas, ... And an optimized tool positioning distance as indicated by a dotted arrow in the figure can be obtained. In addition,
Since the machining start position and the end position of the drill system are the same, it moves to the next area after all the machining in that area is completed, and the milling system starts in one area but remains in another area at the end of machining. In that case, the area at the end of processing is preferentially searched.

[0013]

As described above, according to the NC information generating apparatus of the present invention, the positioning time of the tool can be shortened by changing the operation in each process, so that the machining efficiency is greatly improved. be able to.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of an NC information creation device of the present invention.

FIG. 2 is a flowchart illustrating an operation example of the device of the present invention.

FIG. 3 is a block diagram showing an example of a main part of the device of the present invention.

FIG. 4 is a flowchart illustrating an operation example of a main part of the device of the present invention.

FIG. 5 is a diagram showing an example of area setting of a processing range by the device of the present invention.

FIG. 6 is a diagram showing an example of a process created by the device of the present invention.

FIG. 7 is a diagram showing another example of steps created by the device of the present invention.

FIG. 8 is a block diagram showing an example of a conventional NC information creation device.

FIG. 9 is a flowchart illustrating an operation example of a conventional device.

FIG. 10 is a diagram showing an example of rearrangement of processes by a conventional device.

[Explanation of symbols]

 8 Machining Position Storage Unit 9 Optimization Table 10 Optimization Execution Unit 81 Machining Start Position Storage Unit 82 Machining End Position Storage Unit 101 Machining Area Judgment Unit 102 Machining Position Judgment Unit

Claims (1)

Claim: What is claimed is: 1. A numerical control information creating apparatus for creating numerical control information for controlling machining in a numerically controlled machine tool, comprising: first storage means for storing a machining position in advance;
Second storage means for storing optimization data in advance, and a processing range is divided into predetermined areas according to the optimization data read from the second storage means, and processing positions in the divided areas are stored in the first storage means. A numerical control information creating apparatus, comprising: an optimization executing means for executing an operation of reading from the device and setting the same in all areas according to the optimization data, and optimizing a positioning distance of a tool.