JPH0454505A - Numerical control information producing device - Google Patents

Abstract

PURPOSE:To shorten the machining time by integrating two machining processes into one as long as both processes have the same tools and the same machining conditions and the distance between the machining areas is smaller than a prescribed distance. CONSTITUTION:The process-based tool data SF are stored in a process-based tool data store part 10 and then read into a machining process integrating/ deciding part 19. Thus the machining processes which are carried out under the same machining conditions are obtained. Then the process-based machined shape SE of the corresponding machining process is read out of a process-based machined shape store part 9 and sent to the part 19 for calculation of the distance between the machining areas. Based on this distance, it is decided that a fact whether the machining processes should be integrated or not. If so, the machining process integrating commands SJ are sent to a process-based machined shape integrating part 20, a process-based unmachined shape integrating part 21, and a process-based tool data integrating part 22. Thus the operations where a tool is separated from a work for each end of the machining processes are decreased. Then the machining time is shortened and the machining cost is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a numerical control information creation device that creates numerical control information from a shape upon completion of machining and a shape before machining.

(Prior Art) FIG. 4 is a block diagram showing an example of a conventional numerical control information creation device, in which data SA input from the outside via the data human power device 1 is read into the data human power section 2 and inputted. The data is sent to the data separation unit 3, separated into three data: pre-machining shape data SB, post-machining shape data so, and process-by-process tool data SF. The data are stored in the post-machining shape storage section 7 and the per-process tool data storage section IO, respectively.

Pre-processing shape data SR stored in the pre-processing shape storage section 4
is read into the pre-processing shape division section 5 as necessary, and divided for each processing step to create a pre-processing shape SC for each step and stored in the pre-processing shape storage section 6 for each step.

Processed shape data SD stored in the processed shape storage section 7
is read into the post-machining shape dividing section 8 as needed, and is divided for each machining process to create a post-machining shape SE for each process and stored in the post-machining shape storage section 9 for each process.

Shape data before machining SB, shape before machining SC for each process, shape data after machining 50. The post-machining shape SE for each process and the tool data SF for each process are stored in the pre-machining shape storage section 4. Pre-processing shape storage section for each process 6. The display data selection section 11 reads the post-machining shape storage section 7, the post-machining shape storage section 9 for each process, and the tool data storage section 10 for each process. And display device 13
The data to be displayed on the screen is selected and display data 5
It is sent to the display signal output unit 12 as G, and is output to the display device 13.
A display signal SH for displaying on the screen is created.

On the other hand, the pre-processing shape SC for each process, the post-processing shape SE for each process, and the tool data SF for each process are stored in the pre-processing shape storage unit 6 for each process.
．． The information is read into the numerical control information creation unit 14 from the post-machining shape storage unit 9 for each process and the machining data storage unit 0 for each process. Then, the numerical control information Sl is created and sent to the numerical control information output section 15, and outputted to the outside in the form of a paper tape 16, a magnetic disk 179, a communication signal 18, etc.

FIG. 5 is a diagram showing an example of a machining process based on the numerical control information created by the conventional lid described above, in which the tool moves from the machining process start position Sl to the cutting process start position l, and returns to the cutting process start position. 1. A machining process 1 in which the machining area (hatched area Al) between 2 is cut at the cutting end position, and then the machining process is moved from the cutting end position 2 to the machining process end position E1;
The tool moves from the machining process start position S2 to the cutting process start position 3
Machining process 2 moves from the cutting process start position 4 to the cutting process end position E2 after cutting the process area (hatched area A2) between 3 and 4 to the cutting process end position. Indicates the case where are consecutive. In order to avoid interference between the workpiece and the tool in each machining process, the tool is hair broached at a safe position (51, S2) where it will not interfere with the workpiece, and after finishing the cutting process, the tool is placed at a safe position (El) where it will not interfere with the workpiece. , E2).

(Problems to be Solved by the Invention) In the conventional numerical control information creation device described above, a machining process is created for each machining area.
This solves the problem that even if two machining steps are performed under the same machining conditions, the tool separates from the workpiece each time each machining step is completed, and it takes time to complete all machining steps.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to improve the performance of two specified machining processes when they are performed using the same tool and under the same machining conditions. An object of the present invention is to provide a numerical control information creation device capable of creating numerical control information that integrates processes into one processing process.

(Means for solving !l!!!!) The present invention relates to a numerical control information creation device that creates numerical control information for a machining process from the input shape at the time of completion of machining and the shape before machining. The above object of the present invention is to provide a determining means for determining whether or not two specified machining processes are the same machining process in which machining is performed using the same tool and the same machining conditions, and this determining means is the same machining process. This can be achieved by providing an integrating means for integrating the two processing steps into one processing step when it is determined that the processing step is the same.

(Function) The present invention sequentially reads out processing steps divided into a plurality of parts.
Compare two machining processes, and if they are machining processes with the same tool and the same machining conditions, and the distance between the machining areas of each machining process nail is shorter than the predetermined distance movement, they will be combined into one machining process. This reduces the movement of the tool separating from the workpiece each time the machining process is completed.
The machining time required for all machining steps can be shortened.

(Embodiment) FIG. 1 is a block diagram showing an example of the numerical control information creation device of the present invention in correspondence with FIG. 4, and the same components are given the same reference numerals and the explanation will be omitted. This numerical control information creation device is newly added with a machining process integration determination unit 19, a post-machining shape integration unit 2o for each process, a pre-machining shape integration unit 21 for each process, and a tool data integration unit 22 for each process. .

The per-process tool data SF stored in the per-process tool data storage unit 10 is read into the machining process integration determination unit 19 to determine machining processes that are machined under the same machining conditions. Then, the post-processing shape SE for each process corresponding to that processing process is
From the post-processing shape storage unit 9 for each process to the processing process integrated judgment unit 19
The distance between the machining areas is calculated, and it is determined whether or not to integrate the machining processes based on the distance. If the machining processes are to be integrated, the post-machining shape integration unit 20 for each process and the pre-machining shape integration unit for each process are used. A machining process integration command SJ is sent to the tool data integration unit 21 and each process tool data integration unit 22 .

The post-machining shape SE for each process specified in the machining process integration command SJ manually input to the post-machining shape integration unit 20 for each process is read from the post-machining shape storage unit 9 for each process into the post-machining shape integration unit 20 for each process, The processed shape SER for each process is integrated into one post-processed shape SER and sent to the post-processed shape for each process storage section 9, where it is replaced with the post-processed shape for each process before being integrated.

The pre-processing shape SC for each process specified in the machining process integration command SJ manually input to the pre-processing shape integrating unit 21 for each process is transferred from the pre-processing shape storage unit 6 for each process to the process-based processing shape integrating unit 21&:
They are read, integrated into one pre-processing shape SCR for each process, sent to the pre-processing shape storage unit 6 for each process, and replaced with the pre-processing shape for each process before being integrated.

The tool data SF for each process specified in the machining process integration command SJ input to the tool data integration unit 22 for each process is transferred from the tool data storage unit 10 for each process to the tool data integration unit 22 for each process.
The data is read in, integrated into one process-by-process tool data SFR, and sent to the process-by-process tool data storage section IO, where it is replaced with the process-by-process tool data before being integrated.

In such a configuration, an example of the operation of the machining process integration process will be described with reference to the flowchart shown in FIG. ), the presence or absence of the N+1st machining process in the tool data storage unit 10 for each process is determined (step 52), and if the N+1th machining process does not exist, the process of integrating the machining processes for the paddy ends. On the other hand, when there is an N+1-th machining process, the machining process integration determination unit 19 reads the process-by-process tool data SF of each of the N-th and N+1-th machining processes from the process-by-process tool data storage unit IO, and compares the data in step S3. ), when the process-by-process tool data SF of each process are not the same process conditions, "1" is added to the variable N, the process returns to step S2 (step S7), and the above-described operations are repeated. On the other hand, when the tool data SF for each process of each machining process has the same machining conditions, the machining process integration determination unit 19 determines the Nth and N+1 The distance between the machining regions of each of the Nth and N+-1 machining steps is determined (step S4), and when the distance between the machining regions of each of the Nth and N+-1 machining steps is longer than a predetermined distance, the distance between the machining regions of each of the Nth and Without integrating the N+1st machining steps, add °1'' to the variable N, return to step S2 (step S7), and repeat the above operations.Meanwhile, the machining areas of the Nth and N+1th machining steps When the distance between them is short, each integrating unit 2G, 21.22 integrates the Nth and N◆1st machining processes to create a new Nth machining process, and roughly processes the N+2nd and subsequent machining processes. After front-justifying (
Step S6), the process returns to step s2 and repeats the above-described operation.

Figure 't%3 is a diagram in which the two processing steps shown in FIG. 5 are integrated into one processing step using the apparatus of the present invention.

In the example shown in FIG. 345, when moving from machining process 1 to the next machining process 2, the tool retreats from cutting process end position 2 to machining process end position El, moves to the next machining process start position S2,
3 hair broaches are made at the cutting start position, which results in unnecessary movement, but in the example shown in Figure 3, 2 at the cutting end position and 3 at the cutting start position are short-circuited to reduce the two machining steps to 1. Because it is integrated into one machining process, there is no wasted movement,
Processing time can be shortened.

The reason why machining processes are integrated only when the distance between machining areas is shorter than the set value is that if the distance between machining areas is longer than the set value, the tool will move from the cutting end position of the first machining process to the next position. Rather than moving it to the cutting start position of a machining process, it is better to move it in rapid traverse from the cutting end position of the first machining process, through the machining process end position, and from the machining process start position of the next machining process to the cutting start position. This is because it may be early.

(Effects of the Invention) As described above, according to the numerical control information creation device of the present invention, two specified machining processes are performed using the same tool under the same machining conditions, and between each machining area. If the distance is shorter than the set value, those machining steps are automatically changed to 1.
Since it can be integrated into one machining process, it is possible to reduce the movement of the tool separating from the work each time a machining process is completed, thereby shortening machining time and reducing machining costs.

[Brief explanation of the drawing]

! FIG. 1 is a block diagram showing an example of the numerical control information creation device of the present invention, FIG. 2 is a flowchart showing an example of its operation,
Fig. 3 is a diagram showing an example of integrating machining processes using the device of the present invention, Fig. 4 is a block diagram showing an example of a conventional numerical control information creation device, and Fig. 5 is a diagram showing an example of machining processes using the conventional device. It is. DESCRIPTION OF SYMBOLS 1... Human power device, 2... Data human power section, 3... Input data separation section, 4... Pre-processing shape storage section, 5...
Pre-processing shape division section, 6... Pre-processing shape storage section for each process,
7... Shape storage unit after machining, 8... Shape division unit after machining, 9... Shape storage unit after machining for each process, lO... Tool data storage unit for each process, 11... Display data selection Part, 12
...Display signal output section, 13...Display device, 14...
- Numerical control information creation section, 15... Numerical control information output section, 16... Paper tape, 17... Magnetic disk, 18
...Communication signal, 19...Machining process integrated judgment section, 20
. . . Post-machining shape integration section for each process, 21 . . . Pre-processing shape integration section for each process, 22 . . . Tool data integration section for each process.

Claims (1)

[Scope of Claims] 1. In a numerical control information creation device that creates numerical control information for a machining process from the inputted shape upon completion of machining and the shape before machining, two specified machining processes are performed using the same tool and the same machining process. a determining means for determining whether or not they are the same machining process in which machining is performed under certain conditions, and an integrating means for integrating the two machining processes into one machining process when the determining means determines that the machining process is the same machining process. A numerical control information creation device characterized by comprising: 2. The numerical control information creation device according to claim 1, wherein the integration is performed only when the distance between the two processing steps is shorter than a predetermined distance.