JPH02253310A - Numerical controller - Google Patents

Abstract

PURPOSE:To prevent the wrong working by providing an inhibited axis/inhibited function storage means to previously store the axes that should not be designated in a working process as the inhibited aces or functions. CONSTITUTION:The inhibited axes or inhibited functions which are designated by the inhibited axis or function inhibition commands are previously stored in an inhibited axis/function storage means 11. A numerical control part 1 reads a working program out of a program storage means 8, and analyzes successively the program for each block. Then the part 1 performs an error process to discontinue the working if an analysis block includes an axis or function command and the commanded axis or function of an MST, etc., is coincident with the inhibited axis or inhibited function stored in the means 11. As a result, the working is discontinued to prevent the wrong working when an axis or a function of the MST, etc., is designated wrong in a working process.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a numerical control device capable of machining a workpiece by operating a machine tool based on a numerically controlled machining program.

[Conventional technology]

Figure 4 is a configuration diagram showing the relationship between the main components of a conventional numerical control device (hereinafter referred to as an NC device) and a machine tool.
In the figure, (1) is a numerical control section (hereinafter referred to as a control section).
, +21 is a program reading means connected to the control unit (11).
A machining program stored in advance in 31 is read. 14
1#: Various operations on the NC device are performed on the c operation section.
It is input to the control unit +11 via the operation unit control device 151 (hereinafter referred to as operation unit INF).

+61 is a display control device (hereinafter referred to as display section 1) for outputting various processing information to the display section (7), and <81 is a program storage means. (9) is a drive unit connected to the output side of the control unit (11), which controls the machine tool alt.

Next, the operation will be explained. The machining program stored in the program storage medium (3 summers) is read by the program reading means (2) and inputted to the control section (1). (8).If it is necessary to modify the machining program, the operator uses the operating section (4) to
Ar 151 y (control unit ・(11
Enter. The drive unit (9) drives a motor (not shown) provided in the machine tool +IQ according to the machine control signal output from the control unit (1) to drive the machine Qα, that is, the motor (not shown) provided in the machine tool +IQ.

Controls the movement of cutting tools, etc. Then, the workpiece is cut by the movement of the blade.

[Problem to be solved by the invention]

Since the conventional NC system #L is configured as 1 or more, the commanded axis or MST function is
Even if it is an axis or function that cannot be commanded for reasons such as machine configuration or convenience during operation,
There was a problem that when commanded by a program, it would operate according to that command, resulting in incorrect machining.

The present invention has been made to solve the above-mentioned problems, and even if the axes that exist in the machine configuration can be commanded by a program, the present invention can be applied to axes or functions that should not be commanded during the machining process. Numerical control device with control function? The purpose is to provide.

[Means to solve the problem]

The NC device 1 according to the present invention is equipped with a prohibited axis/prohibited function storage means.

[Effect]

The prohibited axis/prohibited function storage means in the present invention is as follows.

Axes that should not be commanded during the machining process are stored in advance as prohibited axes or prohibited functions.

Controls the axis or function for which a command was given during machining.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In Figure 1, (ri) is the numerical control section, (2) is the control section (
1); 31 is a program storage medium such as a paper tape;

Machining programs are stored. (4) is an operation section, and various commands are input to the control section (1) through the operation section 17EP151ff. (6) is the display section 1 which controls the entire display section (7).

The control unit (1) has a program storage means (8) and a prohibited axis/
Controls the prohibited function storage means αIl'. (9; is a drive unit connected to the control unit (1), which drives all the motors etc. built in the machine tool αe.

Next, the operation of this embodiment will be explained.

The machining program stored in the program storage medium (3) is read by the program reading means (2) and the control unit (
1) is input. The control section (1) stores the machining program in the 7' program storage means (8). and,
When the machine tool system is in operation, the control section (11) reads out all machining programs stored in the program storage means (8), performs analysis processing, and sends machine control signals to all drive sections (9). controls each axis motor, etc. of the machine αQ according to the machine control signal.

Next, the command axis or function inhibit function in the present invention is
This will be explained with reference to the flowchart in the figure and FIG.

In order to realize a command axis or a function inhibiting function, a machining program created by an operator (not shown) according to a prespecified format is required.

FIG. 3 is an outline of the specified format. The specified format is the command axis or function prohibition command (specific command code: ten thread locking axis name or riveting function name) az and the command axis or function prohibition cancel command (specific command code) αJ
It consists of The control unit 111 is a program storage means (8)
The machining program stored in the machine is read out, and analysis processing is sequentially performed for each block.

The control unit (1) first determines whether or not the analysis block includes the command axis or the function prohibition command α2 (81).

If there is a command axis or function prohibition command az, the command axis or the axis specified by the function prohibition command a2 is stored in the prohibited axis/prohibited function storage means αυ (82 Fumoshi,
Command axis or function prohibition cancel command 113 (83)
If there is, the prohibited axis/prohibited function storage means an
The prohibited axis or prohibited function t stored in the memory is cleared and there is no prohibited axis or prohibited function (S).If there is no command axis or function prohibition cancel command +13, the prohibited axis or prohibited function storage means αυ is cleared. Memories are retained.

Next, the control unit (11 is to judge whether there is an axis command or function command in the analysis block) A comparison is made to see if they match the prohibited axis or prohibited function stored in the prohibited axis or prohibited function storage means a+1 (86). If the command axis or function does not match the prohibited axis or function, the control unit (1) performs normal command axis data processing or function processing such as MST for the command axis or function (81). if.

If the command 41] or the function matches the prohibited axis or function, error processing is performed and the operation is interrupted (S8). This series of processing is performed for each block by the total control unit +11.

As shown in FIG. 3, prohibited axes or prohibited functions can be provided within a certain range of the machining program.

〔Effect of the invention〕

As described above, according to one aspect of the present invention, if an operator mistakenly commands a function such as an axis or MST that should not be commanded during the machining process, all operators are notified of the mistake and the operation is interrupted at the same time. It is possible to unravel erroneous machining, and when the process is interrupted, the operator can easily change the machining program for the incorrect axis command or command such as MST through the operation unit.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing one embodiment of the present invention, Fig. 2 is a flowchart showing the command axis or function restriction function in this embodiment, and Fig. 3 is a flowchart showing the command axis or function restriction function in this embodiment. An example of a command format that must be prepared by an operator in advance. FIG. 4 is a configuration diagram showing the main components and machines of a conventional NC device. aυ is a prohibited axis or prohibited function storage means, t12 is a command axis or function prohibited command, and Q3 is a command axis or function prohibited cancel command. In addition, in FIG. 1, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] In a numerical control device that processes a workpiece based on a numerically controlled machining program, a certain axis or M
Numerical control characterized in that by issuing a command such as ST, it is possible to prohibit a command of the command axis within a specific range in the machining program or a command such as MST in which the command occurs. Device.