JP2000066711A - Numerical controller for machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a numerical controller for making even an operator who is not familiar with the contents of a control code used in a program possible to easily perform an MDI operation without errors. SOLUTION: In this numerical controller of a machine tool provided with a manual data input mode capable of manually inputting an operation program and provided with a manual data processing means 3 for executing the operation program inputted under the manual data input mode, an operation program storage means 6 for storing the operation program and an operation name in relation to each other beforehand and a program retrieval means 9 for retrieving the operation program stored in the operation program storage means 6 based on the operation name under the manual data input mode and outputting the retrieved operation program to the manual data processing means 3 are provided. The operator retrieves the operation program from the operation name and executes it without inputting it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual data entry (MDI) for manually inputting an operation program.
The present invention relates to a numerical control device for a machine tool including a manual data processing unit for executing an operation program input under an MDI mode.

[0002]

2. Description of the Related Art Normally, operation modes such as a memory operation and a manual data input (MDI) operation are set in an automatic operation function of a numerical controller of a machine tool. Memory operation is
An operation program stored in a medium such as a magnetic disk or a tape is input from an input device provided in a numerical control device, and is temporarily stored in a memory. A start signal is input from a cycle start key on an operation panel. Read the operation program stored in the memory, and
This is an operation function in which the CPU processes each block and drives and controls a drive shaft of a machine tool.

[0003] The MDI operation is an operation function for manually inputting an operation program from an input key on an operation panel and executing the operation program.
When an activation signal is stored in the I-buffer and a start signal is input from a cycle start key on the operation panel, the operation program stored in the MDI buffer is read out and processed by the CPU one block at a time. And the like are drive-controlled.

The MDI operation requires a long time according to the manual operation, and is particularly effective when the operation is troublesome. For example, when returning the tool post to the mechanical origin, if the tool post is manually returned by the push button, the push button must be kept pressed until the tool post returns to the mechanical origin, which is cumbersome and requires manual operation. The operation time is long because the axis moving speed is slower than in the case of automatic operation, and the operation is troublesome in this respect as well. On the other hand, in the case of MDI operation, the turret can be automatically returned to the machine origin simply by inputting the necessary operation program and pressing the cycle start key, so that the operation is simple and the axis moving speed is low. It is efficient because it is faster than manual operation. In addition, it is generally impossible to perform the operation of returning the tool post to the second origin by manual operation.

When manually operating the ATC of a machine tool equipped with an automatic tool changer (ATC) device, it is necessary to individually operate the drive shaft of the machine tool and each part of the ATC device. The operation is long and complex, and very cumbersome. In addition, an operation error is likely to occur. On the other hand, when the ATC is performed in the MDI operation, the ATC can be executed just by inputting a necessary operation program and pressing the cycle start key, as in the above example, so that the operation is extremely simple. It is efficient.

[0006]

However, even in the MDI operation in which the operation is simple as described above, there have conventionally been the following problems.

The operation program used in the MDI operation is created by combining control codes such as G codes and M codes set in advance corresponding to the functions. It is necessary for the user to fully understand the control contents of these G codes and M codes.

However, the contents of the G code and the M code differ depending on the maker and the model of the NC machine tool, and the operator who operates the NC machine tool on site does not always know the contents of the above-mentioned control code. In fact, in many cases, the MD
The I-drive function could not be used effectively.

In order to enable the operator to perform the MDI operation without any trouble, it is conceivable to prepare an instruction or the like showing the operation procedure. Another problem is that good work cannot be performed and that the order must be managed.

The present invention has been made in view of the above circumstances, and even if an operator is not familiar with the contents of control codes used in a program, M
It is an object of the present invention to provide a numerical controller capable of performing a DI operation.

[0011]

The invention according to claim 1 of the present invention for achieving the above object has a manual data input mode in which an operation program can be manually input, and a manual data input mode. In a numerical control device for a machine tool including a manual data processing unit that executes an operation program input under a data input mode, an operation program storage unit storing the operation program and the operation name in advance in association with each other; A program search unit that searches the operation program stored in the operation program storage unit based on the operation name under the manual data input mode, and outputs the searched operation program to the manual data processing unit. It is characterized by the following.

According to the present invention, the operation program and the operation name are previously stored in the operation program storage means in association with each other. That is, for example, the operation names of “return to origin” and “tool change” and the operation programs corresponding to the respective operation names are stored in the operation program storage means in association with each other.

In the manual data input (MDI) mode, the operation program stored in the operation program storage is searched by the program search means based on the operation name, and the searched operation program is stored in the manual data input mode. It is output to the processing means and executed by the manual data processing means. In other words, the operator can retrieve the desired operation program of the NC machine tool from the operation name and execute the program.

As described above, according to the present invention, the operation program stored in advance can be retrieved from the operation name and the operation program can be executed, so that the operator can select the desired operation of the NC machine tool by using the operation program. Can be executed without being input to the numerical controller. Therefore, even an operator who is not familiar with the control codes used in the program can easily perform the MDI operation. Further, erroneous operation due to an input error of the operation program can be prevented.

According to a second aspect of the present invention, in the first aspect of the present invention, there is provided an input program for inputting an operation program and an operation name corresponding thereto in the manual data input mode in association with each other. Means for storing the operation program and the operation name input by the input means in association with each other.

According to the present invention, the program creator who is familiar with the control codes used in the program creates an arbitrary operation program of the desired NC machine tool, inputs the desired operation program together with the operation name, and correlates these with each other. The operation program can be stored in the operation program storage means, and the operator can search for the necessary operation program from the operation name as appropriate from among the set operation programs and execute it.

As described above, according to the present invention, the operation program operated by the MDI operation can be arbitrarily set on the user side and can be stored, that is, for example, continuous machining of a workpiece by an NC machine tool. Before starting the operation, the operation program required by each user, such as an operation program relating to a running operation for stabilizing the thermal displacement and the like by repeatedly operating the work attaching / detaching device, may be stored in advance in the operation program storage means. Therefore, the operator can execute the user-specific operation program without inputting the program.

According to a third aspect of the present invention, in the first or the second aspect of the present invention, the program searching means determines whether or not the searched operation program contains an uncertain command, When an uncertain command is included, after the determined command is input, the determined command is replaced with the uncertain command, and the replaced operation program is output to the manual data processing means. It is what is done.

For example, in an operation program relating to tool change, it is necessary to specify a tool number to be replaced. However, when an operation program is stored in the operation program storage means, a tool number to be replaced is specified. Usually not fixed. That is, when the operation program is executed, the tool to be replaced, which is mounted on the main shaft, varies depending on the time, and therefore cannot be determined in advance.

According to the present invention, the program search means determines whether or not the retrieved operation program contains an indeterminate command. If the indeterminate command is included, the confirmed command is input. Later, since the determined command is replaced with the uncertain command and output to the manual data processing means, even when the operation program includes an undetermined command when stored in the operation program storage means, Can be stored in advance in the operation program storage means, and can be appropriately executed by the MDI operation.

[0021]

Next, specific embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing a schematic configuration of a numerical control device according to the present embodiment.

As shown in FIG. 1, the numerical controller 1 of the present embodiment
Is provided with a control device 2 and an operation panel 10.
Are an NC system unit 3, an MDI operation program storage unit 6, a display control unit 7,
A registration control unit 8 and a search control unit 9 are provided. The NC system unit 3, the MDI operation program storage unit 6,
The display control unit 7, the registration control unit 8, and the search control unit 9 are connected to the operation panel 10 via the input / output interface 7. Hereinafter, the function of each unit will be described first.

The operation panel 10 has a CR for displaying a screen.
T display (hereinafter referred to as CRT) 11, keyboard 12 for inputting information such as characters and numerals, mode selection key 13 for selecting an operation mode such as memory operation, MDI operation, manual operation, etc., and cycle start key 1
4, a cycle stop key 15 and the like. Note that an MDI operation mode key is selected from the mode selection keys 13 and pressed to input an operation program from the keyboard 12 to the control device 2.

The NC system section 3 controls a drive portion to be subjected to numerical control, such as a feed drive system of a machine tool, and stores a machining program and an MDI for storing an operation program input by the MDI. It includes a buffer, a memory for storing data such as machine setup data and system parameters, a CPU for executing processing in accordance with a machining program stored in the memory or an operation program stored in the MDI buffer, and calculating servo data.

Further, the display control section 7 controls the CRT 1
1 is a function part for controlling the screen display, has an appropriate display format, and displays the position coordinates of a moving body such as a tool post and a machining program. Particularly, in this example, when the MDI operation mode is selected from the mode selection key 13, a menu screen capable of selecting “help operation” or “normal operation” and a display format of the screens shown in FIGS. 2 to 6 are provided. The menu screen and the screens shown in FIGS. 2 to 6 can be displayed on the CRT 11.

The registration control unit 8 has a mode selection key 13
When the MDI operation mode is selected from the menu, "Help operation" is selected from the menu screen, and when a registration request signal is input from the soft key set on the CRT, the input from the soft key, the keyboard 12, etc. is controlled. The operation name and the operation program input from these are associated with each other and stored in the MDI operation program storage unit 6.

The MDI operation program storage unit 6
Is composed of a RAM, and stores an operation name and an operation program inputted from the soft keys, the keyboard 12 and the like in association with each other as a binary file as shown in FIG.

When the MDI operation mode is selected from the mode selection key 13 and the "help operation" is selected from the menu screen, the search control section 9 operates the operation stored in the MDI operation program storage section 6. A name is searched and a list thereof is displayed on the CRT 11 via the display control unit 7. Subsequently, when an operation name is input from the soft key, the MDI operation program storage unit is operated based on the input operation name. 6 and retrieves the operation program via the display control unit 7 into C.
This is a function part for displaying on the RT 11 and transmitting the operation program data to the MDI buffer of the NC system unit.

Further, the search control section 9 checks whether or not uncertain data, specifically, data “***”, exists in the searched operation program data. Is the CR through the display control unit 7.
An input screen is displayed at T11, and the determined data input from the soft keys, the keyboard 12, and the like are replaced with the undefined data, and the operation program data replaced with the determined data is transmitted to the MDI buffer of the NC system unit. Has functions.

Next, the numerical controller 1 having the above configuration
With regard to the MDI operation, a procedure for registering an operation program will be described first.

First, when an MDI operation is selected from the mode selection key 13 of the operation panel 10 and inputted, a menu screen is displayed on the CRT 11 by the display control section 7 having received this signal. When "Help operation" is selected from the displayed menu, the operation name stored in the MDI operation program storage unit 6 is searched by the search control unit 9 which has received this signal, and the A help operation screen as shown in FIG. 2 is displayed on the CRT 11.
In the screen, reference numeral 21 denotes an area for displaying position coordinates.
2 is an area for displaying help operation information, and 26 is an NC
An area for displaying the operation program stored in the MDI buffer of the system unit 3, and 25 is a soft key set on the screen. The help operation information display area 22
, An operation name display area 23 and an operation program display area 24 are set.

Next, when a registration key among the soft keys 25 is pressed, this signal is input to the registration control unit 8, and the registration control unit 8 displays the screen as shown in FIG. Is displayed, whereby the operation name and the operation program can be input. And soft key 2
5, when desired operation names and operation programs are sequentially input from the keyboard 12 or the like, the registration control unit 8 associates these with each other and stores them in the MDI operation program storage unit 6 as a binary file as shown in FIG. You. It is assumed that "***" is input for an undefined part of the operation program such as the T code.

Next, when a registration end key (not shown) of the soft key 25 is pressed, this signal is inputted to the registration control unit 8 and the display control unit 7, and the registration control unit 8 terminates the control while displaying the display. The control unit 7 displays the menu screen on the CRT 1
1 is displayed. As described above, the operation name and the operation program can be stored in the MDI operation program storage unit 6 and registered.

Next, a procedure for executing a desired operation program from the registered operation programs by the MDI operation will be described.

As in the case of the above registration, first, the operation panel 1
After selecting and inputting the MDI operation from the mode selection key 13 of 0, the user selects "Help operation" from the menu screen displayed on the CRT 11 to display the help operation screen as shown in FIG. .

Then, by operating the cursor keys of the soft keys 25 and selecting a desired operation name from the list of operation names as shown in FIG. Then, the search control unit 9 searches the MDI operation program storage unit 6 to extract an operation program corresponding to the operation name, and outputs the operation program to the CRT 1 via the display control unit 7.
1 is displayed in the operation program display area 24.

Next, when the execution key of the soft key 25 is pressed, this signal is inputted to the search control unit 9, and in response to this signal, the search control unit 9 sets the uncertain code, that is, "***" in the searched operation program. Is checked to see if there is a code containing "", and if there is no uncertain code, the operation program is transmitted to the MDI buffer of the NC system unit 3. Then, the operation program stored in the MDI buffer is displayed on the display area 26 of the CRT 11 by the display control unit 7. This display screen is shown in FIG.

Next, when the cycle start key 14 of the operation panel 10 is depressed, the operation program stored in the MDI buffer of the NC system unit 3 is executed by the CPU, and each part of the machine tool is drive-controlled.

On the other hand, for example, in a tool change operation program as shown in FIG. 5, a T code is present in the operation program as an uncertain code. In this case, the search control unit 9 After the input window 27 is displayed on the CRT 11 via the input window 27, the determined code input from the soft keys 25, the keyboard 12 or the like via the input window 27 is replaced with the undefined code, and the operation program is changed to the NC system. The data is transmitted to the MDI buffer of the unit 3. Then, the operation program stored in the MDI buffer is transmitted to the CRT 1 by the display control unit 7 as described above.
1 is displayed in the display area 26. This display screen is shown in FIG.

Next, when the cycle start key 14 of the operation panel 10 is pressed, the determined operation program stored in the MDI buffer of the NC system unit 3 is executed by the CPU, and the respective parts of the machine tool are drive-controlled.

When the MDI operation is selected from the mode selection key 13 of the operation panel 10 and the "normal operation" is selected from the menu screen displayed on the CRT 11, the operation program is inputted from the soft keys 25 and the keyboard 12 as in the conventional case. The input operation program is stored in the MDI buffer of the NC system unit 3, and when the cycle start key 14 of the operation panel 10 is pressed, the operation program stored in the MDI buffer is executed by the CPU, and Each part of the machine is drive-controlled.

As described in detail above, according to the numerical controller 1 of the present embodiment, the operation programs used in the MDI operation are registered in advance in association with the operation names and in advance,
When the operation program is executed, an operation program corresponding to the operation program is searched for from the operation name.
This can be executed without inputting to the MDI, and even an operator who is not familiar with the control codes used in the program can easily perform the MDI operation.
Further, erroneous operation due to an input error of the operation program can be prevented.

Since the operation program can be registered in association with the operation name, the operator must input the program even if the operation program is uniquely required by each user. Instead, the user-specific operation program can be executed.

Further, the search control unit 9 checks whether or not an uncertain code is included in the operation program, and if the uncertain code is included, replaces the input fixed code with the undefined code. Since the operation program is executed, even an operation program including a code that has not been determined at the time of registration can be registered in advance, and can be appropriately executed by the MDI operation.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of a numerical control device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a screen displayed on a CRT of the numerical control device according to the embodiment.

FIG. 3 is an explanatory diagram showing a screen displayed on a CRT of the numerical control device according to the embodiment.

FIG. 4 is an explanatory diagram showing a screen displayed on a CRT of the numerical control device according to the embodiment.

FIG. 5 is an explanatory diagram showing a screen displayed on the CRT of the numerical control device according to the embodiment.

FIG. 6 is an explanatory diagram showing a screen displayed on a CRT of the numerical control device according to the embodiment.

FIG. 7 is an explanatory diagram showing an operation name and a data file structure of an operation program stored in a numerical control device MDI operation program storage unit according to the present embodiment.

[Explanation of symbols]

 Reference Signs List 1 Numerical control device 2 Control device 3 NC system unit 4 Input / output interface 5 System bus 6 MDI operation program storage unit 7 Display control unit 8 Registration control unit 9 Search control unit 10 Operation panel 11 CRT 12 Keyboard 13 Mode selection key 14 Cycle start Key 25 Soft key

Claims (3)

[Claims] 1. A numerical value of a machine tool having a manual data input mode for manually inputting an operation program, and having a manual data processing means for executing the operation program input under the manual data input mode. In the control device, an operation program storage unit in which the operation program and the operation name are stored in association with each other in advance, and an operation program stored in the operation program storage unit under the manual data input mode based on the operation name. And a program search means for outputting the searched operation program to the manual data processing means. 2. An input program for inputting an operation program and an operation name corresponding thereto in association with each other in the manual data input mode, wherein the operation program storage means is configured to input the operation program and the operation name corresponding to the operation name. The numerical control device for a machine tool according to claim 1, wherein the operation program and the operation name are stored in association with each other. 3. The program search means determines whether an undetermined command is included in the searched operation program. If the undetermined command is included, the determined program is input after the determined command is input. 3. The numerical control device for a machine tool according to claim 1, wherein the command is replaced with the uncertain command, and the replaced operation program is output to the manual data processing means.