JPH01252346A - Control device for numerical control machine tool - Google Patents

Abstract

PURPOSE:To smoothly process the down load demand of a program, by a method wherein, in a machining schedule in which preparation is reserved in the preparing reserving means of a cell control device, a means to orderly demand the load of a necessary numerical control program from a host computer device is provided. CONSTITUTION:According to a machining schedule registered in a cell control device 2 and a numerical control program loaded from a host computer device to the cell control device 2, numerical control machine tools 1a, 1b, 1c...1n are controlled. In this case, a preparing reserving means 2-1 situated in the cell control device 2 prepares and reserves a machining schedule specified by means of a preparing reserving signal inputted from a terminal device 4. The load demand of an NC program, necessary to a machining schedule prepared and reserved by a preparing reserving means 2-1, from a host computer device 3 is orderly executed by means of a demand means 2-2.

Description

[Detailed Description of the Invention] [Industrial Application] This invention is a control device for a numerically controlled machine tool, in particular, a numerical control program necessary for a machining schedule is loaded from a host computer device to a cell control device. In a system that performs machining by controlling a machine, means for reserving setup for the machining schedule, and means for requesting the host computer to load a numerical control program necessary for the machining schedule in which step stacking is reserved. The present invention relates to a control device for a numerically controlled machine tool.

[Conventional technology]

Figure 3 is an overall configuration diagram of a conventional machining system, for example, in Figure 0, (la) to (1n) are numerically controlled (hereinafter referred to as NC) machine tools, and (2A) is an NC machine tool (l).
a) A cell control device for controlling (In), (3
) is a cell control device! (4) is a host computer device that supplies the NC program to the cell control device (2A) in response to the request of (2A), and (4) is the cell control device! (2A) is a terminal device that inputs and outputs data.

Figure 4 is a diagram showing the file components in the cell control device, where (5) is the processing schedule file that stores the Canadian quessiere registered in the cell control device (2A), and (6) is the processing schedule file that stores the Canadian kessiere registered in the cell control device (2A). This is an NC program file that stores an NC program that is supplied from the host computer device (3) at the request of ) and is executed by the NC machine tools (1a) to (In). (7a)～
(7n) is stored in the NC program file (6) and is a machining schedule (8a) to (8n) that is sequentially instructed and executed for each NC machine tool (la) to (In).
is the NC program name written in machining schedules (7a) to (7n), and each NC machine tool fji(l
a) to (1n) correspond to the NC programs actually used. And this NC program name and the actual NC
Programs correspond to l to l, and there is no problem even if the NC program name is interpreted as an actual NC program.For easier understanding, see (8a) to (8n) below.
will be explained as an NC program.

FIG. 5 is a flowchart showing the control operation of a conventional NC machine tool.

3 and 4 will be explained based on the flowchart of FIG. 5. First, NC programs (8a) to (8n) necessary for machining are created in advance in the host computer %ttW(3). In the flowchart of FIG. 5, control start 11 is first performed in step 10 to determine whether there are machining schedules (7a) to (7n) to be registered, and if there is a machining schedule that requires registration, jump to step 11. do.

In step 11, the cell control device (2A) is controlled by the instruction signal input from the terminal device (4). 11
Select the target NC machine tools (1a) to (In) and register the machining schedules (7a) to (7n) in the NC program file (6). When the operation in step 11 is completed, the process returns to step 10 again. In step 10, the registration of machining schedules (7a) to (7n) is completed, and when there are no more items that require registration, the process moves to step 12.

In step 12, it is determined whether there is a machining schedule to be executed, and if there is a machining schedule to be executed, the process moves to step 13. In step 13, the operator inputs an instruction signal from the terminal device (4) to the cell control device (2^). The cell control device (2A) automatically displays a setup instruction based on a manually inputted instruction signal, and proceeds to step 14. step.

In step 14, the operator looks at the display of the setup instructions in step 13 and selects each processing function related to setup. Then, when starting the setup, the process moves to step 15, and when the setup has already been completed, the process moves to step 16. In Ste Knob 15, when the operator inputs a setup start signal from the terminal device (4) to the cell control device (2^), the corresponding machining schedule, for example (7a), is set to 0 operations that cannot be modified or deleted. The person starts actual setup work and moves to step 18.

When the operator completes the setup work at Ste Knob 16,
The corresponding machining schedule, for example (7a) setup completion signal, is sent from the terminal device (4) to the cell control device (2^
) and move on to step 17. Step 17 is cell control equipment! When the setup completion signal is input, (2A) requests the host computer device (3) to download the NC blocks (8a) to (8n) required for this machining schedule (7a). ,
When downloading of the requested NC program is started, the process moves to step 18. In step 18, it is determined whether or not there is a set-up machining schedule. If there is a set-up machining schedule, the process moves to step 19, and if there is no set-up machining schedule, the process returns to the first step IO. In step 19, one machining schedule, for example (7a), is selected from the prepared machining schedules, and the process moves to step 20. Step 2
0, the machining schedule selected in step 19 (7
Determine whether all the NC programs (8a) to (8n) required for a) are available in the cell control device (2A), and if they are not all available, perform the first step IO.
Go back and wait until everything is ready.

If all the items are present, the process moves to step 21. Step 2
In 1, the worker installs the automatic start signal as a cell control device! (
2^) and move to step 22. In step 22, the cell control device (2A) sequentially sends the NC program (8a) to the corresponding NC machine tools (1a) to (11) according to the contents of the machining schedule (upper (7a)).
) to (8n), when the services of the NC program are completed, the process moves to step 23.

In step 23, processing of the last NC program (8n) is finished, and it is determined whether the schedule is finished.

If the process has not yet been completed, the process returns to step 22, and if the process has been completed, the process returns to step 24.

In step 24, the executed NC programs (8a) to (
8n), for example, in another set-up machining schedule (
One schedule is completed by deleting the NC program (8a) that is not used in steps 7b), (7k), and (70) from the NC program file (6).

[Problem to be solved by the invention]

Conventional NC machine tool control devices are configured as described above, and as soon as a setup completion signal is input manually, a request for downloading the necessary NC program to the host computer device is started. When handling a large number of programs, it takes a long time to transfer all the NC programs from the host computer to the cell control device, which delays the start of service to the NC machine tool and reduces the operating rate of the NC machine tool. There was a problem with this.

This invention was made in order to solve the above-mentioned problems, and allows for smooth processing of requests for downloading NC programs to a host computer before execution of a machining schedule, and improves the operating rate of NC machine tools. The purpose is to obtain a control device for an NC machine tool that can be used.

[Means to solve the problem]

A control device for a numerically controlled machine tool according to the present invention is used in a machining system that loads a numerical control program necessary for a machining schedule from a host computer device to a cell control device and controls an NC machine tool B at the time of a setup instruction. In order to add a setup reservation function to the processing functions of the cell control device, a setup reservation means for reserving the setup for the machining schedule is provided in the cell control device, and necessary numerical control is provided for the Canis Quessiere in which the setup is reserved. and program load request means for requesting the host computer device to load the program.

[Effect]

A control device for a numerically controlled machine tool according to the present invention loads a numerical control program necessary for Kanisquesiere from a host computer device to a cell control device, and controls a cell control device at the time of a setup instruction in a machining system that controls an NC machine tool. A setup reservation function has been added to the processing functions of the control device.

Furthermore, at the time when the setup is reserved, the cell control device requests the host computer to download the numerical control program necessary for the machining schedule for which the setup is reserved.

〔Example〕

FIG. 1 is an overall configuration diagram of a machining system showing an embodiment of the present invention.
4) is completely the same as the conventional device. (2) is NC
This is a cell control device that controls machine tools (la) to (In), and includes a 0-setup reservation means (2-1) and a program load request means (2-2).
-1) is constituted by a device that makes a setup reservation for a specified machining schedule based on setup reservation No. 18 inputted from the terminal device (4). Program load request means (
2-2) is constituted by a device that requests the host computer device (3) to load the NC program required for the machining schedule reserved for setup.

FIG. 2 is a flowchart showing the control operation of the NC machine tool of the present invention.

FIG. 4 is a diagram showing the file structure within the cell control device, which is the same as that of the conventional device.

The flowchart in FIG. 2 will be explained with reference to FIGS. 1 and 4. In FIG. 2, steps lO to 14.
16.18 to 23 are exactly the same as the conventional operation shown in FIG. Therefore, the explanation of steps IO to 13 will be omitted.

In step 14, the display of the setup instructions in step 13 is checked, and each processing function related to setup is selected. The process then proceeds to step 24 to reserve the setup, step 25 to start the setup, step 26 to cancel the setup, and step 16 if the setup has already been completed. In step 24, the operator inputs a setup reservation signal from the terminal device (4) to the setup reservation means (2-1) in the cell control device (2). A setup reservation is made for the Canadian squesiere specified by the reservation reservation signal, for example, (7a), making it impossible to modify or delete the machining schedule (7a), and sending a setup reservation completion signal to the program load requesting means (2-2). Output. The program load requesting means (2-2) immediately loads the NC programs (8a), (8b) necessary for the machining schedule (7a) for which the setup is reserved.
).

A request to download (8n) is made to the host computer device (3). The host computer device (3) starts downloading the required NC program in response to this request. After this download starts, the process moves to step 18. In step 25, when the operator inputs a setup start signal from the terminal device (4) to the cell control device (2), the actual setup work of the corresponding machining schedule, for example (7a), is started. Immediately after inputting the setup start signal, the cell control device (2) determines whether or not the corresponding machining schedule is reserved for setup, and if the setup is reserved, it immediately jumps to step 18. If the reservation has not been made, a request is made to the host computer (3) to download the NC programs (8a), (8b), (8n) required for this setup machining schedule (7a). The host computer device (3) performs the necessary NC in response to this request.
Start downloading the program and move to step 18. In step 26, if for some reason it is no longer possible to input a setup completion signal for Canada's Quessiere, which has once input a setup reservation or setup start, or if you want to cancel the setup reservation or setup start, the operator inputs the setup cancellation function code into the cell control device W(2), the cell control li! (2) is required for the processing schedule, for example (7a), and has already been implemented by the host computer (
3) For example, the NC program downloaded from (8
Among a) to (80), other setups have been reserved, setups have started, or setups have been completed machining schedules, for example (7b)
, (7k), (7n), which is not used in any of the following, is called the NC program (6)
Delete more. When this deletion is completed, the process moves to step 18. In step 16, if the machining schedule is set up, the operator sends the set up signal to the cell control device (2).
) and move on to step 18. In step 27, among the machining schedules that have completed one schedule, e.g., programs (8a) to (8n) executed in (7a), other machining schedules have already been reserved, or have started, or have already been set up, e.g., (7b). , (7k), (7n), which are not used in any of the NC programs (8a
) is deleted from the NC program file (6), and one schedule is completed. ' As explained above, the control device for the NC machine tool of the present invention has the setup reservation function in step 24 and the setup reservation function in step 2 as the processing functions of the cell control device (2) at the time of setup instruction.
6, a new setup cancellation function has been added.

〔Effect of the invention〕

The control device for a numerically controlled 3′I machine tool according to the present invention includes:
In a machining system that loads the numerical value v11n program required for a machining schedule from a host computer to a cell control device and controls an NC machine tool, a setup reservation function is installed in the processing function of the cell control device at the time of setup instructions. Since the above-mentioned host computer is requested to download the necessary numerical control program for the machining schedule for which the setup is reserved, the download request for the program can be smoothly processed, and the operation rate of the machine tool can be It has the effect of improving

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of a machining system showing an embodiment of the present invention, Fig. 2 is a flowchart showing the control operation of the NC machine tool of this invention, and Fig. 3 is an overall configuration diagram of a conventional machining system. , FIG. 4 is a diagram showing the file structure within the cell control device, and FIG. 5 is a flowchart showing the control operation of a conventional NC machine tool. In the figure, (la) to (In) are NC machine tools, (2
). (2A) is a cell control device, (2-1) is a setup reservation means, (2-2) is a program load request means, (
3) is a host computer device, (4) is a terminal device, and (5) is a terminal device.
) is a machining schedule file, (6) is an NC program file, (7a) to (7n) are machining schedules,
(8a) to (8n) are NC programs. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent: Masuo Oiwa, Patent Attorney Figure 1 Figure 3 Figure 4 Figure 6 NC program files 7a to 7n, processing schedules 8a to 8n: NC program

Claims (1)

[Scope of Claims] Machining in which a numerically controlled machine tool is controlled by a machining schedule registered in a cell control device and a numerical control program loaded from a host computer to the cell control device in accordance with the machining schedule. In the system, a setup reservation means for reserving a setup for the machining schedule in the cell control device; and a setup reservation means for loading a necessary numerical control program for the machining schedule in which the setup is reserved in the setup reservation means. 1. A control device for a numerically controlled machine tool, comprising means for requesting program loading sequentially from a computer device.