JPH0482640A - Numerical control device - Google Patents

Abstract

PURPOSE:To eliminate manual errors by comparing the data written in the data carrier imbedded in a tool with the data stored in a numerical control device with the numerical control device, prior to fitting the tool to a machine. CONSTITUTION:An machine-exterior tool data reading means 22 reads names of tools in the tool shelf, etc., located at the machine vicinity, or via an machine-exterior sensor head 21 from the machine-exterior tool data carrier 20 of the tool prepared in the lump by an operator, a tool name comparing means 23 reads the tool name in short from a short tool name memory means 12 and seeks for the same tool name as the tool name read from the machine- exterior tool data carrier previously. In the case of there being the same tool name, a comparison result display means 26 displays the tool name coincidence at a 2nd display part 27 and the short tool being prepared is stored in a comparison result memory means 24. Then, as to whether the preparation of all of short tools is completed or not is checked, and the processing is finished, after displaying the short tool preparation completion at the 2nd display part 27, in the case of the preparation completion, and immediately in the case of no preparation completion.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a numerical control device, and particularly to a numerical control device equipped with a tool management function.

[Prior Art] In a numerically controlled machine tool system, a plurality of tools for processing a workpiece are held in a tool magazine on the machine, and processing is performed while automatically exchanging tools. However, when machining a wide variety of products, the tools in the tool magazine may not be enough. In such cases, unnecessary tools are removed from the tool magazine and necessary tools are installed.

Conventionally, a function of numerically controlled machine tool systems that assist in such work is a missing tool function that compares the name of the tool required for the next machining with the name of the tool held in the tool magazine and displays the name of the tool that is missing for the next machining. The numerical control device is equipped with a display function or an unnecessary tool display function that displays the name of a tool that is unnecessary for the next machining, and the operator replaces tools according to the display of the missing tool display function or unnecessary tool display function. .

At this time, the operator must remove the missing tools for the next process in advance.
In accordance with the display, tools are selected and prepared from tools stored in a tool shelf or the like.

On the other hand, the tool is provided with a data carrier that stores data related to the tool such as the tool name, and when the prepared tool is installed or after it is installed, the tool is installed via a sensor head provided at the position. There is a numerical control device that has a tool management function using an information-containing tool by reading data written in a data carrier and storing it in a storage means within the numerical control device.

FIG. 6 is a block diagram of a conventional numerical control device.

The numerical control device shown in FIG.
, missing tool name identifying means 11, missing tool name storage means 12, missing tool name display means 13, display section 14, possessed tool name storage means 15, possessed tool name display means 16,
It is composed of a tool data reading means 17, an in-machine sensor head 18, and a possessed tool data carrier 19.

FIG. 7 is a diagram showing the stored contents of the used tool name storage means 10 shown in FIG. 6. Used tool name storage means 1 shown in Fig. 7
0 stores in advance the name of a tool used for machining one program name.

FIG. 8 is a diagram showing the stored contents of the possessed tool name storage means 15 shown in FIG. 6. Owned tool name storage means 1 shown in FIG.
5, tool attachment positions and tool names are stored in correspondence.

FIG. 9 is a diagram showing the stored contents of the missing tool name storage means 12 shown in FIG. 6. Missing tool name storage means 1 shown in Fig. 9
2 stores the name of the missing tool.

FIG. 10 is a diagram showing a display example of the missing tool name display means 13 shown in FIG. 6.

Further, FIG. 11 is a processing flowchart of a conventional numerical control device.

Based on the above premise, the operation of the conventional numerical control device will be explained below according to the flowchart shown in FIG.

In the conventional numerical control device shown in FIG. 6, a used tool name storage means 10 stores in advance the name of a tool used for machining one program name. In Figure 7, the Canadian program w.

An example of RKl is shown.

step 51) in which the missing tool name identifying means 11 reads the tool name of the used tool from the used tool name storage means 10; the tool name of the owned tool is read from the owned tool name storage means 15;
The tool name of the used tool is compared with the tool name stored in the possessed tool name storage means 15 to find the same tool name and check the result (steps 52 and 53). An example of the stored contents of the owned tool name storage means 15 is shown in FIG.

As a result of the comparison, if the corresponding tool does not exist, the tool name is stored in the missing tool name storage means 12 (step 53), and if the corresponding tool does exist, nothing is done.

The above process is checked for all tools used in one machine program (step 55). Therefore, in the example of the Canadian program WORKI, the stored contents of the missing tool name storage means 12 are as shown in FIG.

The missing tool name display means 13 displays the missing tool name stored in the missing tool name storage means 12 on the display section 14. A display example is shown in FIG.

The operator looks at the content displayed on the display unit 14 and prepares the missing tools.

On the other hand, a data carrier containing tool data such as the tool name of the tool is embedded in the tool.

After a tool is installed by the operator, the tool data reading means 17 reads the tool name from the held tool data carrier 19, that is, the tool data carrier of the previously installed tool, via the in-machine sensor head 18, and stores the held tool name. It is stored in the means 15. The owned tool name display means 16 displays the tool name stored in the owned tool name storage means 15 on the display section 14.

[Problems to be Solved by the Invention] In the conventional numerically controlled machine tool system configured and operated as described above, when searching for a missing tool from a tool shelf or the like near the machine, the operator displays the missing tool name display means 13. Either the name of the missing tool was looked at and compared with the tool name written on the tag attached to the tool, or the tool name was read on the data carrier of the tool by a machine other than the numerical control device and then it was read. It is displayed on the display device and compared with the tool name of the missing tool displayed by the missing tool name display means 13.

Similarly, when the operator determines whether the tool names of the tools prepared in batch and the tool names of the missing tools match before the tool installation, the operator also selects the missing tool name display means 13. Either look at and compare the displayed missing tool name with the tool name written on the tag attached to the tool, or read the tool name on the data carrier of the tool using a machine other than the numerical control device and read it. It is displayed on the display device and compared with the tool name of the missing tool displayed by the missing tool name display means 13.

In this way, a comparison check is performed by a person during the tool preparation stage, so if an operator makes a mistake, tools may sometimes be missing or the wrong tool may be installed. Therefore, after the pre-machining is completed and the prepared tools are installed on the machine, the missing tools must be checked again using the missing tool display function and the missing tools at that point must be further prepared. There was a problem that the machine stop time was extended.

The present invention has been made in order to solve the above-mentioned problems, and the purpose of the present invention is to eliminate manual errors, and to eliminate errors caused by errors when installing a tool, such as when it is found that the tool is not prepared or when the prepared tool is not prepared. Our goal is to provide a numerically controlled machine tool system that does not make mistakes.

[Means for Solving the Problems] In order to achieve the above object, the numerical control device according to the present invention is capable of searching for missing tools from a tool shelf etc. near the machine, or when searching for missing tools from a tool shelf etc. prepared by an operator. When determining whether the name of the missing tool matches the name of the missing tool before tool installation, there is a method for reading the tool name written on the data carrier of the tool outside the machine, and a means to read the tool name written on the data carrier of the tool outside the machine, A means for comparing and collating the tool name stored in the tool name storage means, a means for displaying a tool name match when there is a matching tool name among the missing tool names, and a means for storing that the missing tool has been prepared. The present invention is characterized by comprising means for displaying the stored contents and means for displaying the stored contents.

[Operations] Therefore, the numerical control device of the present invention can perform the work of searching for missing tools in a tool shelf, etc., and the work of checking whether all the missing tools for the next machining are available. This can be done by comparing the data written on a data carrier embedded in the tool with the data stored by the numerical control device before the tool is installed in the machine.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 4 is an external view of a numerically controlled machine tool system using the numerical control device of the present invention. In the figure, a numerically controlled machine tool 30 includes a numerical control device 31 and a numerical control device 31.
an external sensor head 21 connected to the machine, a tool 32 located outside the machine, a tool data carrier 20 located outside the machine embedded in the tool 32 located outside the machine, and an in-machine sensor head 18;
It is composed of a second display section 27.

Further, tool data is input to the numerical control device 31 from an external tool data carrier 20 embedded in a tool 32 located outside the machine via an external sensor head 21. The external tool data carrier 20 contains the tool name (
(including tool number), tool compensation data, etc.

The second display section 27 is located near the external sensor head 21,
An operator located at the external sensor head 21 can see the display.

FIG. 1 is a block diagram of a numerical control device 31 shown in FIG. 4, which is an embodiment of the present invention.

Further, FIG. 5 is a flowchart showing the processing contents of the numerical control device 31 according to an embodiment of the present invention.

In FIG. 1, the numerical control device 31 of the present invention includes an external tool data carrier 20, an external sensor head 21, an external tool data reading means 22, a tool name comparing means 23, and a comparison result storage means 24. and comparison result batch display means 25
, a comparison result display means 26, a second display section 27, and other components 10 to 19 shown in FIG.

Next, the operation of the numerical control device 31 configured as described above will be explained according to the flowchart shown in FIG.

In the numerical control device 31, the external tool data reading means 22 reads the external sensor from the external tool data carrier 20, which is a data carrier for tools such as tools on a tool shelf near the machine, or tools prepared in bulk by the operator. head 21
The tool name is read via (step 41).

The tool name comparing means 23 reads the missing tool name from the missing tool name storage means 12 and searches for the same tool name as the tool name read earlier from the external tool data carrier 20 (step 42
).

Check the comparison result (step 43), and if there is no matching tool, immediately terminate the process.

As a result of the comparison, if the same tool name is found, the comparison result display means 26 displays the tool name match on the second display section 27 (step 44). Furthermore, the fact that the missing tool has been prepared is stored in the comparison result storage means 24 (step 45).

Next, check whether all the missing tools are ready (step 46), and if all the missing tools are ready, display the missing tools ready on the second display section 27 (step 46).
Step 47), if all the missing tools are not ready, the process ends immediately.

As is clear from the above description, in the numerically controlled machine tool 30 according to the embodiment of the present invention, the second display section 27 is installed near the external sensor head 21, and the tool name is displayed when the lamp is lit. It is possible to notify the operator that the tools match and that missing tools are ready.

FIG. 2 is a diagram showing the storage contents of the comparison result storage means 24 of FIG. 1.

In FIG. 2, * is stored as preparation completion data for the names of missing tools that are confirmed to have been prepared. If a blank is stored as the preparation completion data, it indicates that preparation completion has not been confirmed yet.

The comparison result batch display means 25 reads out the preparation completion data from the comparison result storage means 24 and displays it on the display section 14. An example of the display by the comparison result batch display means 25 is shown in FIG. In FIG. 3, it can be seen that the tool name TIO has not yet completed preparation.

[Effects of the Invention] As explained above, according to the present invention, the work of searching for missing tools from a tool shelf, etc., and the work of checking whether all the missing tools for performing the next machining are available. This can be done by the numerical control device comparing the data written on the data carrier embedded in the tool and the data stored in the numerical control device before the tool is attached to the machine. This has the effect of solving the problem of extending the machine stop time before moving on to the next machining, since it is not found that the tool is not prepared when it is installed, or the wrong tool is prepared. .

[Brief explanation of the drawing]

1 is a configuration block diagram of a numerical control device showing an embodiment of the present invention, FIG. 2 is a diagram showing the storage contents of the comparison result storage means 24 shown in FIG. 1, and FIG. 3 is a diagram showing the comparison results shown in FIG. 1. 4 is an external view of a numerically controlled machine tool system according to an embodiment of the present invention. FIG. 5 is a processing flowchart showing the operation contents of the numerical control device 31 shown in FIG. 4. 6 is a configuration block diagram of a conventional numerical control device, FIG. 7 is a diagram showing the stored contents of the used tool name storage means 10 of FIG. 6, and FIG. 8 is a diagram showing the stored tool name storage means of FIG. 6. 15. FIG. 9 is a diagram showing the storage contents of the missing tool name storage means 12 of FIG. 6. FIG. 10 is a diagram showing the display contents of the missing tool name display means 13 of FIG. 6. FIG. 11 is a processing flowchart showing the operation contents of a conventional numerical control device. In addition, the same reference numerals in the figures indicate the same or corresponding parts.
・・・ Numerical control device

Claims (2)

[Claims] (1) A numerical control device equipped with a tool management function that uses tools with information, including a tool name storage means for storing the names of tools used for machining, and tools with information stored in a tool magazine in the machine. an in-machine sensor head for reading the tool name; a possessed tool name storage means for storing the tool name read by the in-machine sensor head; and a tool name stored in the used tool name storage means and a possessed tool name storage means. In the numerical control device, the in-machine sensor head has a missing tool name identifying means for identifying the name of a tool that is insufficient for machining from the tool names stored in the machine, and a missing tool name storing means for storing the result of the missing tool name identifying means. an external sensor head for reading the tool name of a tool with information stored in a tool shelf or the like outside the machine; and tool data for reading the tool name of the tool with information via the external sensor head. reading means; tool name comparison means for comparing the tool name read by the tool data reading means with the tool name stored in the missing tool name storage means; and a comparison result display for displaying the comparison result of the tool name comparison means. A numerical control device characterized by having means. (2) In the numerical control device according to claim (1), there is provided a comparison result storage means for cumulatively storing the comparison results of the tool name comparison means for each missing tool name, and a content stored in the comparison result storage means. A numerical control device comprising a comparison result batch display means for displaying the comparison results all at once.