JPH03219303A - Numerical controller - Google Patents

Abstract

PURPOSE:To collectively select the validity/invalidity of optionally continued information to be skipped by inputting a skip-added program, and at the time of deciding a skip start code, invalidating the information to be skipped until a skip cancel code is decided and reading out all the information as varied information when skip is not executed. CONSTITUTION:The numerical control device is constituted of a skip-added program storage part 20 for storing the skip-added program to which a skip start code and a skip cancel code are added, a skip selecting operation part 22 to be a skip selecting means for selecting whether skip is to be executed or not, and an instruction code decision reading part 24 for deciding a skip start/cancel code and reading out the skip-added program. When the skip start code is decided in the case of executing skip, the information to be skipped is invalidated until a skip cancel code is decided, and when the skip operation is not executed, all the information of the skip-added program can be validated, so that the validity/invalidity of plural information to be skipped can be collectively selected.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a numerical control device that performs machining on a machine tool based on a control program, and particularly to a numerical control device that uses a skip function to skip arbitrary information in the program. The present invention relates to a numerical control device that automatically controls a machine tool by reading and executing a program.

[Conventional technology] When machining a workpiece using a numerically controlled machine tool, one part program is prepared for one type of workpiece and predetermined machining is performed based on this part program. There is.

However, many of the workpieces to be processed have similar shapes, and particularly in such cases, only a portion of the shape is often different, as shown in FIGS. 6 and 7, for example.

Conventionally, when machining a workpiece of this type whose shape differs only in part, a part program corresponding to a process section that becomes unnecessary due to the machining workpiece is created, such as the program shown in Fig. 5, for example. A specific symbol such as a slash symbol "/2" is provided at the beginning of each block of a plurality of block groups, and an optional block skip function is used to execute the processing.

This optional block skip function allows information on the arbitrary block to be saved when a specific symbol (character) is added to the beginning of the block mentioned above, and when the optional block skip switch provided on the operation panel of the operation unit is turned on. This is a feature that can be skipped and disabled.

Therefore, in the past, this function was used in numerically controlled machining to turn on the optional block skip switch.
If so, the process section is disabled, and if the optional block skip switch is OFF, the process section is enabled and the operation of the machine tool is controlled based on the part program.

FIG. 4 shows a circuit configuration diagram of a numerical control device having this type of optional block skip function.
As shown in the figure, the conventional numerical control device includes an operating section 1o having the optional block skip switch, a part program storage section 12, and a block skip processing section 1.
4, a part program analysis section 16, and a part program execution section 18.

In other words, the block skip processing section 14 stores the part programs stored in the part program storage section 12 in block units (N0 shown in FIG. 5), for example.
01, N0O2161, to N0O9).

Based on the ON/OFF switching of the block skip switch on the operation unit 1o, that is, the information on whether skip is enabled or disabled, a specific symbol such as a slash symbol "/" is added as shown in FIG. It is determined whether a block is valid or invalid, and only the determined valid blocks are transferred to the part program analysis section 16.

Then, the part program analysis section 16 sends only this valid block to the part program execution section 18, so that the execution section 18 executes the contents of the block determined to be valid.

[Problems to be Solved by the Invention] However, in such a conventional numerical control device, when the block skip switch is ON, the optional block skip function skips a specific character symbol added to the beginning of the block as described above. This makes only that block invalid, so multiple consecutive blocks could not be invalidated all at once.

Therefore, in order to invalidate consecutive blocks all at once, it is necessary to add a specific symbol, such as a slash symbol "/", to each target block as shown in FIG.

That is, this function recognizes the specific symbol "/" added to the beginning of a block as shown in FIG.
If you want to invalidate the block only when the block is N, and you want to invalidate the entire process group of the required part program, all the blocks of the process part, like N003 to N006 shown in FIG. It became necessary to add a specific symbol "/" to the beginning of the group.

For this reason, when creating the part program, the above-mentioned matters must be taken into consideration, which has the disadvantage of being extremely time-consuming and labor-intensive.

In addition, as shown in FIGS. 8 and 9, when contouring two different types of workpieces, the 10th
It is necessary to create a part program as shown in the figure.

In this part program, if it is possible to select whether to enable or disable the information of each block section (N203.Y2O) and a part of the block (X90) shown in the underlined part of the figure, as shown in FIG. , machining of two types of workpieces shown in FIG. 9 is possible with one program.

However, in the above part program, with the conventional optional block skip function, it is not possible to skip each block part and part of the block together, and in particular, it is not possible to skip part of the block (X 90). It is impossible to skip, and two types of part programs must be created. This has the disadvantage that the program becomes long, and the time and effort required to create the program is wasted.

Purpose of the Invention The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to add an instruction symbol to start skipping and an instruction symbol to cancel skipping to specific skip target information in a program. The object of the present invention is to provide a numerical control device that can select whether any continuous pieces of skip target information are valid or invalid at once using these two instruction symbols.

[Means for Solving the Problems] In order to achieve the above object, a numerical control device according to the present invention reads a program, adds a skip instruction symbol to arbitrary information in the program as information to be skipped, and executes the skip. A machine tool is automatically controlled by invalidating the target information, and the program is a skip addition program to which a skip start symbol for starting skip and a skip cancel symbol for ending skip are added as the skip instruction symbol, a skip selection means for selecting whether or not to perform skipping on information to be skipped and outputting a skip selection signal; When it is determined that it is a start symbol, the information to be skipped until it is determined that it is the skip cancellation symbol is invalidated, and when the skip selection signal is input and no skip is performed, all information of the input skip addition program is invalidated. The present invention is characterized by comprising an instruction symbol determination reading means for reading out the skip addition program with the skip addition program set as valid.

[Function] With the above configuration, the numerical control device of the present invention has a skip start symbol for starting skipping, a skip canceling symbol for ending skipping, and a skip target information that is arbitrary information in the control program. The machine tool is automatically controlled by the skip added program.

Therefore, when performing the above-mentioned skip, when it is determined that the symbol is a skip start symbol, it is possible to invalidate the skip target information up to the time when it is determined that the symbol is the skip cancel symbol.

Moreover, when skipping is not performed, it becomes possible to make all the information of the skip addition program valid.

As a result, it becomes possible to execute the skip addition program by invalidating only the skip target information surrounded by the skip start symbol and the skip cancellation symbol. Therefore, it is possible to select whether to make the skip target information valid or invalid all at once.

[Example] Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

FIG. 1 is a circuit configuration diagram showing an example of a numerical control device according to the present invention. Incidentally, the same members as those in FIG. 4 described above are given the same reference numerals, and the explanation of the structure and operation will be omitted hereinafter.

A characteristic feature of the present invention is that when skipping is performed based on the skip addition program, when it is determined to be a skip start symbol, the skip target information up to the time when it is determined to be the skip cancellation symbol is invalidated, and the skip is performed. If there is no such program, all information of the skip addition program is made valid.

The configuration of the numerical control device shown in FIG. 1 showing this embodiment will be explained below.

In the figure, the numerical control device of this embodiment includes a skip addition program storage unit 20 that stores a skip addition program to which a skip start symbol and a skip cancellation symbol are added.
, a skip selection operation unit 22 as a skip selection means for selecting whether or not to perform a skip, and the skip start/skip
The instruction symbol determination and reading section 24 determines the cancellation symbol and reads out the skip addition program.

This instruction symbol determination reading section 24 includes a skip start symbol determination section 26 and a skip cancellation symbol determination section 2 as shown in the figure.
Both the determining sections 26 and 28 are connected in parallel.

That is, first, the skip addition program 20a read from the skip addition program storage section 20 is input to the skip start symbol determination section 26, and at the same time, the skip selection is inputted as selection information for performing skip determination processing. A skip selection signal indicating whether or not to skip from the operation unit 22, that is, skip valid/invalid information 22
a.

22b is input.

When skipping is performed based on the skip validity information 22a, the skip start symbol determination unit 26 determines that the skip addition program is skipped as it is until a start symbol (character) for starting skip appears in the skip addition programs that are sequentially input. The program 24a is sequentially read out and transferred to the part program analysis section 16.

Then, when a start symbol that starts the skip for each block or block-part appears, the skip start symbol determining section 26 determines the skip start symbol at this point and executes the subsequent skip addition program. Instead of being transferred to the part program analysis section 16, it is transferred to the skip canceling symbol determining section 28 as skip target information 26a to be invalidated.

Therefore, in this skip cancellation symbol determining section 28, the skip addition program is read blankly until a cancellation symbol for canceling the skip appears by transfer from the skip addition program storage section 20, and this program to be read blankly is This corresponds to information to be skipped and will be treated as invalid.

Then, when a cancel symbol (character) for canceling the skip appears in the skip addition program, the skip target information ends and the skip processing is instructed to end. A termination instruction signal 28a is output to 26.

As a result, the skip start symbol determining section 26 skips the skip target information of the skip addition program up to the point in time when the end instruction signal 28a is input, and transfers this to the part program analyzing section 16 as the skip determining program 24a. It is being restarted.

Therefore, the part program analysis section 16 analyzes the transferred skip determination program 24a and causes the part program execution section 18 to execute it, thereby identifying a start symbol for starting skipping and a cancellation symbol for canceling skipping. It is possible to operate the machine tool by selecting whether to enable or disable the skip addition program surrounded by .

FIG. 3 shows a specific example of a part program in which each block is described, and the third part program is shown below.
The operation will be explained using diagrams.

This example shows the case where a slash symbol is used as the skip instruction symbol (character), where the slash "/" is the start symbol to start skipping, and the backslash "\" is the cancellation symbol to cancel skipping. It is.

Here, in the block with sequence number N103 shown in (1) in the figure, only X151 surrounded by "/" and "\" is the information to be skipped, and for example, its adjacent Y2
It can be seen that O2 is not subject to skipping.

Furthermore, in the block with sequence number N105 shown in (2) in the figure, skipping starts from /'' at the beginning until "\" appears at the end of block end Y110 with sequence number N106 shown in (3). The block with the sequence number N105 and the block with the sequence number N106 surrounded by "/" and "\" become continuous skip target information.

Therefore, in sequence numbers N101 to N107,
Skip is X151 of N103 and X153 of N105
, Y2O2 to N106, X155, and YIIO.

In this example, "/" and "\" are used as instruction symbols to indicate the start/cancellation of skipping, but of course, other specific instruction symbols (characters) may be used without being limited to these. If a character that can be distinguished from the additional character of the function is used, this allows simultaneous use with the block skip function.

Next, the operation of the circuit configuration diagram of this embodiment shown in FIG. 1 will be explained in detail using the flowchart in FIG. 2.

When the program is started by the activation operation of the skip selection operation section 22 (step 000), the skip addition program is read by the skip addition program storage section 20 (step 100), and here, in step 100, the skip addition program is already being skipped. If so, the process advances to the determination of the skip cancellation state (step 150), and if the skip is not in progress, the process advances to the next determination of the skip valid state (step 110).

Then, the skip selection operation section 22 is activated.
If the invalidity information is invalid, the process proceeds to step 170 where the part program analysis is performed; if the invalidity information is valid, the process proceeds to the next step 1.
30 (step 120).

Further, the skip start symbol determination unit 26 determines whether or not it is a start symbol (character) for starting skip (step 130), and if it is not a symbol for starting skip, the process proceeds to step 170 for performing the part program analysis, In the case of a symbol that starts skipping, the skip execution flag is turned on and the process proceeds to the next step 150 (step 140).

Note that this skip execution flag is set in step 11 above.
Used in determining 0.

In step 1, the skip canceling symbol determining unit 28 determines whether or not it is a canceling symbol (character) that cancels skipping.
50), here, judgment N that is not a symbol to cancel skipping
In the case of o, the process returns to step 100 as shown in the figure, and in the case of YES, which is a symbol for canceling the skip, the skip execution flag is turned off (step 160).
, return to step 100 in the same manner as above.

Next, the part program analysis unit 16 analyzes the programs other than the ones to be skipped (step 170).
, the analyzed program is run in the part program execution unit 18 (step 180).

Then, in this step 180, it is determined whether the program has been run completely.
If the determination is NO that the operation has not been completely completed, the process returns to step 100 and the operation is continued. On the other hand, if the determination is YES that the operation has been completely completed, the series of operations is ended.

As explained above, according to this embodiment, since it is possible to select whether to enable or disable any continuous information in the skip addition program, even if all consecutive blocks are to be invalidated, all blocks are There is no need to add slash marks.

This makes it possible to reduce the effort required to create a program by simply adding a skip start symbol and a ski/knob release symbol to the beginning and end of information to be invalidated, respectively.

In addition, since it is now possible to skip only part of a block, as mentioned above, it is possible to process workpieces with partially different shapes, which was impossible in the past, by simply creating one type of program. In addition, it is possible to eliminate waste in the program.

[Effects of the Invention] As described above, according to the numerical control device according to the present invention, a plurality of consecutive blocks or blocks can be used to invalidate skip target information in an arbitrary area without being aware of blocks in the program. You can freely skip only part of the content within the program.

[Brief explanation of drawings]

FIG. 1 is a circuit configuration diagram of a numerical control device according to the present invention, FIG. 2 is a flowchart showing the operation of the numerical control device according to the present invention, and FIG. 3 is a display state of a skip addition program in the present invention. FIG. 4 is an explanatory diagram showing an example of the circuit configuration of a conventional numerical control device; FIG. 5 is an explanatory diagram showing an example of a display state of a part program using a conventional skip function; 7, 8, and 9 are explanatory diagrams showing the shape of a workpiece to be machined based on a conventional part program. FIG. 10 is another example of the display state of a conventional part program. FIG. Skip addition program storage section Skip selection operation section 22b ... Skip valid/invalid information instruction symbol judgment reading section Skip judgment program Skip start symbol judgment section Skip target information Skip cancellation symbol judgment section End instruction signal 20 ... 22 ... 22a. 24 ... 24a ... 26 ... 26a ... 28 ... 28a ... Fig. 0 Yloo ×140 100 ×140 0 ×0 ×140 Fig. Fig. ×100 0 xto. 0 Figure

Claims (1)

[Claims] (1) In a numerical control device that adds a skip instruction symbol to skip target information in a program and executes the program with the skip target information invalidated to automatically control a machine tool, the program adds a skip instruction symbol to the skip target information. A skip addition program to which a skip start symbol for starting skipping and a skip canceling symbol for ending skipping are added, comprising: a skip selection means for selecting whether or not to perform skipping with respect to the skip target information; When the selection means performs a skip, and when the skip addition program is input and the skip start symbol is determined, the skip target information up to the time when the skip cancellation symbol is determined is invalidated, and the skip is performed. A numerical control device comprising: instruction symbol determination reading means for reading out the skip addition program by validating all of the information on the skip addition program if there is no such program.