JPH0290302A - Production system for numerical control information - Google Patents

Abstract

PURPOSE:To produce a numerical control (NC) program having the least working time and to ensure the highly effective operations of plural tool posts by dividing the working form of one process into plural pieces or integrating the continuous working forms to be processed in the different processes into one form. CONSTITUTION:A working form is divided into two pieces based on an optional point or a straight line connecting two optional points of the working form. Otherwise the continuous working forms to be worked in the different processes are integrated into one form. An input command deciding part 6 receives an editing command SL from a keyboard 1 and decides this command to complete its working with an end command. A process order replacement part 2 works with a command SA. A process integrating part 7 takes the process information SG out of a memory 5 with a command SF and stores a basic process for integration and the processes to be integrated with the basic process into the memory 5 together with the production process information SH. Then a process dividing part 8 takes the process information out of the memory 5 with a command SI and divides the working form information. Then the part 8 designates the coordinate value of the working form for division and store the process information SK into the memory 5. In such a constitution, it is possible to edit a process to use plural tool posts with the highest efficiency and to obtain the shortest program.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a numerical control information creation method, and particularly to a numerical control information creation method that allows effective editing of process data for a lathe having a plurality of tool rests. Regarding.

(Squire's technology) Recently, numerical control (NC) lathes that automatically process feathers according to a program have become widespread, especially 2.
A lathe with two turrets has the mission of reducing machining time as much as possible and operating efficiently. As a means to shorten this machining time, there are ways to increase the ratio of simultaneous machining with the two tool posts, and the operation time of rapid traverse, which is non-cutting time, and the operation time of spindle function S, tool function T, auxiliary function M, etc. An example of this is ``not'', which is the shortening of ``t''.

In order to increase the proportion of simultaneous machining and shorten the machining time, a commonly used method is to change the order of the steps.

Hereinafter, a conventional numerical control information creation method using a method of rearranging the process order will be described.

FIG. 6 is a block diagram for realizing a conventional numerical control information creation method.

Conventionally, first, a process order replacement command SA is manually inputted from the keyboard 1, and the process order replacement unit 2, which has input the replacement command list, inputs two process data Sll of the replacement process.
Take out from Mesenri 5. Note that the process data here is the basis of the NC program, and includes machining shape data,
This includes tool data, spindle rotation speed, and other machining condition data. Further, the display control unit 3 takes out data in the memory 5, such as the order of steps and process data of each step, and displays it on the CIITJ.

FIG. 7 is a diagram showing the information in the menu 5 in detail.

As shown in the figure, all process data (PRO
I-PROm; m is the total number of processes) or two turrets Δ,
B is stored according to the process order 1 to n.

Next, a conventional numerical control information creation method will be explained using an example.

FIG. 8 is an explanatory diagram of the replacement process of the conventional numerical control information creation method, and FIG. 8(a) shows a part shape diagram for explaining this example, and FIG. The upper part of FIG. 8(c) shows the process sequence of processing steps PROI to PRO3 for the part of (a) before the replacement process is performed, and similarly, the left part of FIG. 8(c) shows the memory at that time. 5 shows a graph of machining time when the machine is controlled based on the contents and the process.

Accordingly, before the replacement process is performed, the machining procedure is to simultaneously perform the external end face machining of process PROI on tool post A, and simultaneously perform internal machining of process PR02 on tool post B, and then transfer the process to both tool posts. After completing the machining in step B, the process 11 states that the external longitudinal machining in step pH03 is performed using the tool post A. At this time, according to the corresponding machining time graph, there is idle time for tool post A between the end of process PROI and the start of the next process + 1RO3, and the efficiency is low in a lathe with two tool posts. Badly, it does not contribute to shortening machining time.

Therefore, conventionally, in such a case, the operator issues a process change command, that is, the external end face machining process P I+
01 and the process PI103 for external longitudinal machining is input via the keychain 1, the process order changing unit 2 into which the name of the change command was input will change the process PROI and the process PROI of the process PR03 from the memory 5. The two process data SC with their process orders swapped are stored in the memory 5.
Store in.

The execution order after the Uunajin V process is shown in the lower part of FIG. Figure 8(c) shows the graph of machining time when
Shown on the right.

(Problem to be solved by the invention) However, in the conventional numerical control information creation method described above, there are cases in which processes cannot be processed simultaneously, and even if simultaneous processing is performed, the processing time of each process may be different. In cases where there is a significant difference, there are many times when only one turret is in operation, resulting in poor process data editing efficiency.

The present invention was made in view of the above-mentioned circumstances, and the purpose of the invention is to edit process data in order to efficiently operate a plurality of turrets and create an NC program with the shortest machining time. The purpose of this invention is to provide a method for creating numerical control information.

(Means for Solving the Problems) The invention relates to a numerical control information creation method that allows effective editing of process data for a lathe with a plurality of turrets, and the above object of the invention is to: In a numerical control information creation method that allows editing of process data based on numerical control information, the machining shape to be machined in one process can be created by any point on the machining shape or by a straight line connecting any two points. Divide into multiple parts, and for the divided multiple machined shape parts,
Automatically generate process data for each process from the process data before division, and/or integrate multiple continuous machining shapes that are machined in separate processes into one machining shape, and perform the integrated machining. This is achieved by automatically generating process data for processing a shaped part from a plurality of process data before integration.

(For Inventory) In the present invention, in a numerical control information creation method that allows editing of process data that is the basis of numerical control information, it is possible to divide a machined shape processed in one process into a plurality of pieces, Multiple continuous machining shapes, each processed in a separate process, are defined as 1.
By integrating them into one machining shape, you can edit the process to make the most effective use of multiple turrets, and create an NC program with the shortest machining time.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows N which realizes the numerical control information creation method of the present invention.
FIG. 7 is a configuration diagram showing an example of a C program creation device corresponding to FIG. 6, and the same components are designated by the same reference numerals and the explanation thereof will be omitted. This apparatus is newly provided with a process integration part 7 that integrates a plurality of processes into one process, and a process division part 8 that divides one process into a plurality of processes.

FIG. 2 is a diagram showing the operating procedure of an apparatus that implements the numerical control information creation method of the present invention. FIG. 3 is an explanatory diagram of process integration processing in the embodiment. FIG. 4 and FIG. 5 are explanatory diagrams of process division processing in the embodiment.

The operation of the embodiment will be described below with reference to FIGS. 1 to 5.

First, when an operator or the like manually inputs a process editing command SL via the keyboard 1, the command is inputted to the manual command determination section 6. In the manual command determination unit 6, the editing command S
When L is input manually, the command is either the process order replacement command S8, the process integration command SF (instructs the process that is the basis of integration and the process to be integrated), or the process division command 51 (
It is determined whether the dividing process and coordinate values on the machining shape for dividing are commanded (steps 51, 52, and S3). As a result of the discrimination, if the manual command discriminating unit 6 determines that the command is a process order replacement command, it sends the command to the process order replacement unit 2, and if it determines that it is a process integration command SF, it sends the command to the process integration unit 7, and if it is determined to be a process division command SI, it is sent to the process division unit 8. Furthermore, if it is determined that it is an end command (step S4), the operation is ended.

The process integration unit 7, which manually receives the process integration command SF, retrieves the process data SG of a plurality of commanded processes from the memory 5, and processes the process data other than the machining shape pig of the process that is the basis of integration, and the commanded plurality of process data SG. Create a process consisting of the final machining shape data when executing the process, and create the process data 51
1 is stored in the memory 5 (step 56).

In addition, the process dividing unit 8 which manually inputs the process dividing command SI,
By retrieving the process data SJ of the commanded process from the memory 5, dividing the machining shape data based on the coordinate values on the commanded machining shape, and copying the same process data other than the machining shape data, multiple A process is created and the process data SK is stored in the memory 5 (step S7).

Next, a specific example based on the above procedure will be explained.

First, based on FIG. 3, a processing method when the process integration command SF is manually input will be explained.

Figure 3(a) shows a part shape diagram for explaining this example, and the upper part of Figure 3(b) shows the processing process PROI-PR for the part in (a) before the integration process is performed.
It shows O3 and its process procedure, and similarly, Figure 3(c)
The left part of the figure shows a graph of machining time when the machine is controlled based on the contents of the memory 5 at that time and the process.

According to this, before the integrated processing is performed, the machining procedure is to perform the external end face machining of process PROI on tool rest A, and simultaneously perform the internal diameter machining of process PRO2 on tool rest B, and transfer the data to both tool rests. After the machining is completed, the tool post A performs external longitudinal machining in step PRO3. At this time, according to the corresponding machining time graph, turret A has idle time between the end of process PROI and the start of the next process PR03, and in a lathe with two turrets, efficiency is low. Badly, it does not contribute to shortening machining time.

Therefore, in this case, the operator gives the process integration command,
For example, when a command to integrate the process PROI for external longitudinal machining based on the process PRO3 for external longitudinal machining is entered manually via the keyboard 1, the manual command determination unit 6 determines that the general command SF has been input for process integration. The unit 7 takes out the process PROI and the process data SG of the process Pr103 from the memory 5, creates a process PROI° for external longitudinal machining, and stores it in the memory 5 as the process data SH.

Process PROI' and process P resulting from such process integration
The execution order of R02 is shown at the bottom of FIG. 3(b), and the contents of the memory 5 at that time, the process PR old degree, and the process 1'1t
The right part of FIG. 3(c) shows a graph of the machining time when the machine is controlled by the NG program created based on 02. According to this, this integrated processing increases the rate of simultaneous machining by B on the two tool rests, thereby shortening the machining time.

Next, based on FIG. 4, a processing method when the process division command 51 is manually issued will be explained.

FIG. 4(a) shows a part shape diagram for explaining this example, and the upper part of FIG. 4(b) shows the processing steps PROI to P′
R03 and its process procedure are shown, and similarly, Figure 4 (C
) shows a graph of machining time when the machine is controlled based on the contents of the memory 5 at that time and the process.

According to this, before the dividing process is performed, the processing procedure is to first perform external longitudinal machining of the process I'ROI on the tool rest A, then perform groove machining of the process Pn02 on the tool rest A, and perform the groove machining of the process Pn02 on the tool rest B. The procedure is such that the inner shape machining in step PR03 is performed at the same time. At this time, according to the corresponding machining time graph, while the process PRO1 is being executed on the tool rest A, the tool rest B becomes idle and its efficiency deteriorates.

Therefore, in this case, the operator selects board 1 for each process.
, the process division unit 8 that manually inputs the division command SJ retrieves the process data SJ of the process PROI from the memory 5 based on the judgment of the manual command determination unit 6, and extracts the process data SJ of the process PROI from the memory 5.
OI' and process Pn04 are created and stored in the memory 5 as process data SK.

Process PROI', process P as a result of such process division
Change the execution order of R02, process PRO3, and process PRO4 to the fourth
The contents of the memory 5 at that time, process P1101°, process P1102. A graph of machining time when the machine is controlled by the NG program created based on process pH03 and process PR04 is shown in the right part of FIG. 4(C). According to this, by this division process, the ratio of simultaneous machining by the two tool rests A and B is increased, and the machining time is shortened.

Next, based on FIG. 5, a processing method will be described when a division command 51 for performing division at a position having two arbitrary coordinate values is input.

FIG. 5(a) shows a part shape diagram for explaining this example, and the upper part of FIG. 5(b) shows the processing steps PR01 to I for the part of (a) before division processing is performed. '
RO3 and its process steps are shown, as well as in Figure 5 (C
) shows a graph of the machining time after controlling the machine based on the contents of the memory 5 at that time and the process.

According to this, before the two-point division process is performed, the processing procedure is to first perform external longitudinal machining in process PROI using tool rest A, and simultaneously perform internal machining in process PRO2 using tool rest B. After the machining in step PROI is completed, the inner diameter machining in step pRO3 is performed using the tool post B. At this time, according to the corresponding machining time graph, after the process PR02 using tool post B is completed, tool post A
Until the process PIIOI is completed, the turret B is idle and its efficiency is degraded.

Therefore, in this case, the operator commands the division of the process,
For example, when a command to divide the external longitudinal machining of process PROI at points (p) and (q) in FIG.
The process division unit 8 which manually inputs the division command Sl is stored in the memory 5
, extract the process data SJ of process PIt01 from
"R old" and process PRO4 are created and stored in the memory 5 as process data SK.

Process PROI° and process PR resulting from such process division
The execution order of O2, process PRO3, and process PRO4 is shown at the bottom of FIG.
A graph of machining time when the machine is controlled by an NC program created based on 04 is shown in the right part of FIG. 5(C). This is due to the fact that the two tool rests A are separated by this division process.
, B has increased the rate of simultaneous machining, and the machining time has been shortened.

(Modified example) In the embodiment of the present invention described above, the creation of an NC program for controlling two turrets was explained.
The present invention can be similarly applied to creating an NC program to control three or more turrets.

(Effect of the invention) As described above, according to the numerical control information creation method of the present invention,
By dividing a machined shape that is machined in one process into multiple parts, or by integrating multiple consecutive machined shapes that are each machined in separate processes into one machined shape, the machining time can be minimized. This is extremely effective in practice, since it is possible to edit process data for creating an NC program, and to operate a plurality of turrets efficiently.

] Figure 1 shows an NC that realizes the numerical control information creation method of the present invention.
A block diagram of the program creation device, FIG. 2 is an explanatory diagram of the operating procedure of the NC program creation device that realizes the numerical control information creation method of the present invention, FIG. 3 is an explanatory diagram of process integration processing in the embodiment, and FIG. 4 5 is an explanatory diagram of process division processing in the embodiment, FIG. 6 is a configuration diagram of an NC program creation device that realizes a conventional numerical control information creation method, and FIG. 7 is an explanatory diagram of information in memory. FIG. 8 is an explanatory diagram of conventional process replacement processing.

1...Keyboard, 2...Process order switching section, 3...
・Display control unit, 4...CRT, 5...memory,
6... Input command discrimination section, 7... Process integration section, 8...
・Process division department.

◆ L--G No. (C) 嘗 (σ) No. times (G) (of) (C)

Claims (1)

[Claims] 1. In a numerical control information creation method that allows editing of process data that is the basis of numerical control information, a machining shape to be machined in one process can be created at any point on the machining shape or at any arbitrary point on the machining shape. 2
A numerical value characterized in that it is divided into a plurality of parts by straight lines connecting points, and process data for processing each of the divided plurality of machined shape parts is automatically generated from the process data before division. Control information creation method. 2. In a numerical control information creation method that allows editing of process data that is the basis of numerical control information, multiple consecutive machining shapes, each of which is machined in a separate process, are integrated into one machining shape, and the integrated machining A numerical control information creation method characterized in that process data for machining a shape part is automatically generated from multiple process data before integration. 3. In a numerical control information creation method that allows editing of the process data that is the basis of the numerical control information, the machining shape to be machined in one process can be set to any point on the machining shape or any two points on the machining shape.
Divide the points into multiple parts using straight lines, and automatically generate process data for each of the divided machining shape parts from the process data before division, and process each part in a separate process. A numerical value characterized in that a plurality of continuous machining shapes are integrated into one machining shape, and process data for machining the integrated machining shape portion is automatically generated from the plurality of process data before integration. Control information creation method.