JPS6249509A - Numerical controller - Google Patents

Abstract

PURPOSE:To inhibit the change of a control program and then to release this inhibition completely by providing the 2nd setting key which is used for production of the control program using a high-grade language, etc. or the debug at a setting display part containing the 1st setting key in a free attachable/ detachable way. CONSTITUTION:A setting key 9 is attached to a setting display part 8 when a control program is changed or produced newly. This attains the production of a control program using a high-grade language. In other words, the input and the change are possible with the inhibited program data. In this case, however, a shift program set by a setting key 81 is invalidated. Then a shift command program set by the key 81 is validated when the key 9 is detached from the part 8. Thus it is possible to inhibit the change of a working program and to release this inhibition completely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a numerical control device that numerically controls the movement of a controlled machine based on a movement command program by operating a setting key.

[Conventional technology]

Figure 2 is a block connection diagram of a conventional numerical control device.
In the figure, 1 is a paper tape for data input, 2 is an input section that reads data from the paper tape 1, 3 is a CPU control section of the central processing unit (hereinafter referred to as CPU), 4 is a storage section as a register of the CPU, and 5 is the same. The calculation unit 6 is a drive unit that numerically controls the movement of the controlled machine 7 based on the output of the CPU control unit 3.

Reference numeral 8 denotes a setting display section, in which setting keys 81 are provided for the operator to perform normal program operations.

Next, the operation will be explained.

First, inputting the movement command program 2 of the controlled machine 7 is performed manually by reading the data on the paper tape 1 and pressing the setting keys 81 of the setting display section 8. In particular, when using the 1 setting key 81, various data other than the movement command program can also be input. thus,
The movement command program inputted using the paper tape 1 or the setting key 81 is temporarily stored in the storage section 4 under the control of the CPU control section 3, and then inputted by an input operation using a start button on the machine operation panel (not shown), that is, a RUN command. , the movement command program stored in the storage unit 4 is transferred to the calculation unit 5, and the calculation unit 5 executes calculation of predetermined movement data. The calculation unit 5 determines a movement command separated into each axial component by calculation, and the drive unit 6 controls the controlled machine 7 in each axial direction based on the movement command.

Nineteenth, such a numerical control device is provided with a program lock key that prohibits the program from being changed so that the operator does not destroy the program due to a mistake in operating the setting key 81. [Problems to be solved] Since conventional numerical control devices are configured as described above, in order to prohibit program changes or other program settings, it is necessary to operate the program lock key mentioned above, which requires high-level control. Problem #1 was that it was not possible to efficiently perform the work to create a language-based control program, and that the program could be copied by someone else.

This invention was made in order to solve the above-mentioned problems, and provides a numerical control device that completely prohibits and cancels the prohibition on program changes, and that can safely and easily prohibit and cancel the prohibition. The purpose is to obtain.

[Means for solving problems]

In the numerical control device according to the present invention, a second setting key for creating and debugging a control program in a high-level language or the like is detachably attached to a setting display section having a first setting key for setting a normal movement command program. and configured to disable the movement command program of the first setting key and enable the control program of the second setting key when the second setting key is attached to the setting display section. This is what I did.

[For production]

The second setting key in this invention is attached to the setting display section as necessary, and allows input of data that is normally prohibited, allowing creation of new programs and debugging of programs. At the same time, when the second setting key is removed from the setting display area, input of data that is normally prohibited is prohibited, completely preventing program destruction due to operation of the first setting key. It works like this.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In Fig. 1, 9 is a second setting key, which is detachable from the setting display section 8. When it is necessary to create or change a program, it is attached to the setting display section 8 to enable creation and debugging of the program. Tsumashi,
Data input using the first setting key 81 is prohibited, but this prohibition is canceled by the second setting key 9. This first setting key 81 consists of the minimum set of keys necessary for the operator. In addition,
Other components that are the same as those shown in FIG. 2 are designated by the same reference numerals, and redundant explanation thereof will be omitted.

Next, the operation of the above embodiment will be explained.

Normally, a movement command program is input into the input section 2 by operating the first setting key 81, and further stored in the storage section 4 under the control of the CPU control section 3, and then moved from the storage section 4 as necessary. The command program is read out and input into the calculation unit 5, and the calculation unit 5 obtains movement commands separated into each axis component, thereby controlling the operation of the controlled machine 7 in each axis direction.

On the other hand, when changing the control program or creating a new control program, the second setting key 9 is attached to the setting display section 8. By doing this, this second
By operating the setting key 9 appropriately, it is possible to create a control program in a high-level language such as 9, RASIC, and to debug this control program. In other words, it becomes possible to input program data and change this data, which is normally prohibited. On the other hand, in this case, the movement command program using the first setting key 81 is invalidated.

Next, when the second setting key 9 is removed from the setting display section 8, the movement command program by the first setting key 81 is enabled, and the operator does not have to look at the control program or accidentally This first setting key 81 is designed to prevent unnecessary operations or destruction of the control program with the minimum number of key operations necessary for normal operation. It is something.

In the above embodiment, the second setting key 9 includes the first setting key, but the first setting key 81
It is also possible to divide the roles between the user and the second setting key 9, so that only operations that are not available on the first setting key 81 are performed using the second setting key 9.

〔Effect of the invention〕

As described above, according to the present invention, the second setting key used for creating and debugging a control program using a high-level language, etc. is removably provided in the setting display section provided with the first setting key for operator operation. When the second setting key is installed, the movement command program of the first setting key is disabled and the control program of the second setting key is enabled. This eliminates the problem of destroying the movement command program due to a mistake in the operation of the setting key 1, and the control program can be easily created and debugged. It also has the effect of preventing others from copying the control program and preventing troubles such as copyright infringement from occurring.

[Brief explanation of drawings]

FIG. 1 is a block connection diagram of a numerical control device according to an embodiment of the present invention, and FIG. 2 is a block connection diagram of a conventional numerical control device. 7 is a controlled machine, 8 is a setting display section, 9 is a second setting key, and 81 is a first setting key. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Patent applicant: Mitsubishi Electric Corporation, Agent: Patent attorney 1) Hiroshi Sawa (and 2 others)

Claims (1)

[Claims] In a numerical control device that numerically controls the movement of a controlled machine based on a movement command program using a first setting key provided on the setting display section, the setting display section has a function for creating and debugging control programs in a high-level language, etc. Second to use
A setting key is detachably provided, and when this second setting key is attached to the setting display section, the movement command program by the first setting key is invalidated, and the second setting key is removably provided.
A numerical control device characterized in that the control program is enabled by a setting key.