JPH1199444A - Tooling support system and tooling support method in nc machining - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the operation from generation of an intermediate NC program to completion of the final NC program and a tooling list by coherent computational processing by providing a tool management device including a final NC program creating means and a correction value generation means for working correction value data set. SOLUTION: A final NC program creating means 12 of a tool management device 6 is adapted to retrieve a tool corresponding to a tool specified by an intermediate NC program from the tool magazine layout information, and replace a tool number in the intermediate NC program by the appropriate magazine pot number. When no appropriate tool is found, it is replaced by an available empty tool magazine pot number. A correction value generating means 13 retrieves using tool data from the tool data storage device to generate a data set of working correction values. A tooling list creating means 14 combines the tool number in the final NC program with the appropriate tool data to create a tooling list in a designated format.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for supplying an NC program and tool data to an NC machine tool provided with an automatic tool changer, and more particularly to a tool which actually uses a tool number of an automatically programmed intermediate NC program. The present invention relates to a tooling support system and a tooling support method in NC processing that automatically generate and output a data set of a correction value for processing based on a diameter and a length of a tool to be actually used, which is automatically replaced with a magazine pot number.

[0002]

2. Description of the Related Art Conventionally, in the field of NC machining, there has been known a technique of generating an NC program by a computer from the shape of a workpiece and machining conditions shown in the drawings. This conventionally generated NC program is referred to as an “intermediate NC program” in the present specification, and is a tool movement, that is, a coordinate value for specifying a machining path, a machining speed command, and a tool for designating a tool type. Includes numbers.

By the way, the tool number of the intermediate NC program is different from the number of the tool magazine pot actually used in order to maintain versatility in consideration of use in various NC machine tools. I have. In addition, the above-mentioned intermediate NC programming is used to correct a cutting allowance or the like.
This alone cannot be used immediately for machining, and tool data such as the diameter and length of a tool actually used must be input as a correction value.

For this reason, conventionally, after the above-mentioned intermediate NC program is created, the tool number of the tool specified in the intermediate NC program is replaced with the number of the corresponding tool magazine pot of the NC machine tool actually used, and the tool diameter is changed. Tool data such as tool length and tool length had to be input as a machining correction value.

[0005] An NC program in which the tool number of the intermediate NC program is replaced by the number of the tool magazine pot of the NC machine tool actually used is referred to as a "final NC program" to distinguish it from the "intermediate NC program". To Further, since the "final NC program" controls the NC machine tool together with the machining correction value, it may be called with the machining correction value. However, in this specification, the tool magazine pot number is used for clarity. The terminology will be used to distinguish between the final NC program in which the tool number is replaced and the data set of the machining correction value.

Here, a method of supplying an NC program to a conventional NC machine tool will be described.

FIG. 4 shows a flow of supplying an NC program to a conventional NC machine tool.

In FIG. 4, the person performing each processing step on the left side is shown on the right side of the figure. As shown in FIG.
In the program supply method, first, the NC programmer describes the intermediate NC program consisting of the machining path and tool number, and the tool number, tool type, tool name, rotation speed, feed rate, etc. set in the intermediate NC program. A tooling list is created (step 410,
420). Note that the above touring list is often
It was created by handwriting by the NC programmer.

Next, the intermediate NC program and the tooling list are sent to an operator who performs the NC machining, and the operator inputs the intermediate NC program to a control device of the NC machine tool (step 430). Subsequently, for the tools listed in the tooling list and actually used, the operator measures tool data such as a tool diameter and a tool length (step 440). These measured tool data are also input to the control device of the NC machine tool by the operator (step 450). Finally, the tool number in the intermediate NC program is compared with the tool magazine layout of the NC machine tool via the tooling list, and is changed to the number of the tool magazine pot of the NC machine tool in which those tools are stored (step). 460). After the above processing, the NC program becomes available for the first time and is actually used for machining (step 470).

[0010]

However, in the above-mentioned conventional method of supplying an NC program in the NC machining, much labor and time are required until the final NC program is completed, and there is a high possibility that an error will occur. Was.

For example, in the work of an NC programmer, a tooling list is created by hand in many cases, so that it takes time and effort, and there is a possibility that a transfer error or the like may occur. Also, in the work of the NC machining operator, it takes time and effort to input an NC program, check a tool using a tooling list, and the like, and there is a possibility that a mistake in changing a tool number may occur.

Further, in the conventional NC program supply method, in order to change a tool number, an intermediate NC program, a final NC program, and a large number of NC programs being changed are mixed in a control device of an NC machine tool. The management of the NC program was complicated.

An object of the present invention is to eliminate the need for an NC programmer to create a tooling list and an NC machining operator to change the input of an intermediate NC program. The present invention provides a "tooling support system and a tooling support method in NC machining" that can perform the completion of a tooling list and a tooling list by consistent computer processing.

[0014]

According to the first aspect of the present invention, "N
The tooling support system in the C machining includes a tool data storage device that stores tool data, an intermediate NC that generates an intermediate NC program by inputting a machining shape and machining conditions.
A C program creation device, a tool magazine layout information storage device storing tool magazine layout information of an NC machine tool, and an intermediate NC program generated by the intermediate NC program creation device,
A tool corresponding to the tool specified by the program is searched from the tool magazine layout information in the tool magazine layout information storage device, and the tool number of the intermediate NC program is replaced by the tool magazine pot number of the corresponding tool, or the corresponding tool If there is no available tool magazine pot number, a final NC program creating means for creating a final NC program by replacing it with an available tool magazine pot number, and tool data of a tool to be used are obtained from the tool data storage device and a machining correction value And a tool management device having a correction value generating means for generating a data set.

According to a second aspect of the present invention, there is provided a tooling support system in the NC machining according to the first aspect of the present invention, wherein the tool management device includes a tool number in the final NC program and a tool of the tool number. And a tooling list creating means for creating a tooling list including the tool data in a predetermined format.

According to a third aspect of the present invention, there is provided a tooling support system in NC machining according to the first or second aspect, wherein the tool data storage device is connected to a tool presetter for measuring tool data. The tool data is directly inputted by the tool presetter.

According to a fourth aspect of the present invention, there is provided a tooling support system in NC machining according to any one of the first to third aspects, wherein the tool management device is a control device for at least one NC machine tool. And output means for outputting a data set of the final NC program and the processing correction value to the NC machine tool control device.

According to a fifth aspect of the present invention, there is provided a tooling support system in NC machining, wherein the tool management device is connected to a tooling list output device installed near an NC machine tool. And a tool for outputting the tooling list to the tooling list output device.

The "tooling support system in NC machining" according to claim 6 of the present application is the tooling support system according to claim 1, wherein the tool data storage device, the intermediate NC program creating device, and the tool magazine layout information storage. The device and the tool management device are connected by a local area network, and data or instructions can be input / output by an arbitrary component device of the local area network.

The "tooling support system in NC machining" according to claim 7 of the present application is the tooling support system according to claim 5, wherein the tool presetter, the tool data storage device, the intermediate NC program creating device, The tool magazine layout information storage device,
The tool management device, the NC machine tool control device, and the tooling list output device are connected by a local area network, and data or instructions can be input / output by any constituent device of the local area network. Is what you do.

The "tooling support method in NC machining" according to claim 8 of the present application includes a tool database for storing and managing tool data, and a tool magazine layout database for storing and managing tool magazine layout information of the NC machine tool. An NC program is input, and a tool corresponding to the tool specified in the intermediate NC program is searched from the tool magazine layout database,
The final NC program is created by replacing the tool number of the intermediate NC program with the tool magazine pot number of the corresponding tool or, if there is no corresponding tool, with the available free tool magazine pot number, and creating a tool for the tool to be used. Data is acquired from the tool database to generate a data set of machining correction values, and the final N
The data set of the C program and the processing correction value is output to the control device of the NC machine tool.

According to a ninth aspect of the present invention, there is provided a tooling assisting method in NC machining according to the eighth aspect of the present invention, wherein a data set of the final NC program and the machining correction value is created and the final NC program is created. N
A tooling list including a tool number in a C program and tool data of a tool having the tool number is output in a predetermined format.

According to the "tooling support system and tooling support method in NC machining" of the present invention, the tool management device inputs the intermediate NC program and the tool magazine layout information, and converts the tool number in the intermediate NC program to the corresponding tool magazine. Replace automatically by pot number. As a result, a final NC program is generated.

Further, the tool management device retrieves the tool data of the used tool from the tool data storage device (tool database) as the machining correction value, and prepares it as a data set of the machining correction value. Further, the tool management device can create a tooling list in a format desired by the operator by combining the tool number and the tool data in the final NC program.

[0025]

Next, embodiments of the present invention will be described below.

FIG. 1 shows an apparatus configuration of an embodiment of a "tooling support system in NC machining" according to the present invention and a flow of processing between the constituent apparatuses.

The tooling support system 1 according to the present embodiment comprises a tool presetter 2 and a tool data storage device 3
, An intermediate NC program creation device 4, a tool magazine layout information storage device 5, a tool management device 6, NC machine tool control devices 7a to 7n, and a tooling list output device 8. These devices are connected via a local area network, and are configured so that data or instructions can be input / output to / from any one of the components.

The tool presetter 2 is a device for measuring the diameter and length of a tool. In the tooling support system 1 of this embodiment, the measured data can be directly output to the tool data storage device 3. It is configured.

The tool data storage device 3 is a device for storing tool data and systematically managing these data.
Preferably, the tool data is stored in a database so that the tool data can be searched according to a predetermined search condition. The tool data storage device 3
Has means for inputting / outputting tool data (including communication means; input / output means is not shown).

The intermediate NC program creating device 4
This is an information processing device that creates a C program. The intermediate NC program creating device 4 of the present embodiment is a device that automatically generates an intermediate NC program from drawing data such as CAD, etc. However, the intermediate NC program creating device may be a device that performs manual programming. As described above, the intermediate NC program created by the intermediate NC program creating device 4 includes machining path commands such as machining paths, machining speeds, and tool numbers. Also, intermediate NC
The program creation device 4 has input means (not shown) for inputting drawing data and machining conditions, and output means (not shown) for outputting an intermediate NC program.

The intermediate NC program creating device 4
May be a dedicated device for creating an intermediate NC program, but may be a general-purpose computer (which may be a personal computer), and may be configured by software so as to perform various processes described in this specification. It may be controlled.

Tool magazine layout information storage device 5
Is a device for systematically storing and managing tool magazine layout information of an NC machine tool to be used.

Here, the tool magazine layout information is information indicating the actual tool magazine pot number of each NC machine tool to be used and the tools stored in each tool magazine pot. The tool magazine layout information is preferably made into a database, and is configured to be able to search for a corresponding tool magazine pot number from a predetermined search condition. The tool magazine layout information storage device 5 has input / output means (including communication means; input / output means is not shown) for inputting / outputting tool magazine layout information, tool magazine pot number, and the like. I do.

The tool management device 6 is a device that inputs an intermediate NC program, tool data, and tool magazine layout information, and outputs a final NC program, a data set of machining correction values, and a tooling list. . Specific processing of the tool management device 6 will be described later.

The tool management device 6 may be a dedicated device for performing the above-described processing (input and output), but is a general-purpose computer (or a personal computer). It may be controlled by software so as to perform processing.

The NC machine tool controllers 7a to 7n
An information processing device for controlling a machine tool, comprising a programming unit, a storage unit, a display unit, and an input / output unit.

The tooling list output device 8 is a printer or a display device installed at an appropriate place near the NC machine tool. The tooling list output device 8 has communication means for connecting to a local area network.

The above has been a brief description of the components of the tooling support system 1 of the present embodiment. Next, processing by the tooling support system 1 will be described below.

In starting the tooling support system 1 of this embodiment, first, the tool data storage device 3
The tool data and the tool magazine layout information are stored in the tool magazine layout information storage device 5, respectively. The stored tool data and tool magazine layout information are preferably stored in a database. The storage of the tool data in the tool data storage device 3 is performed by the tool presetter 3.
The tool diameter and the tool length are measured, and the measured tool data is directly input to the tool data storage device 3. With such preparation, the intermediate NC program creating device 4 creates an intermediate NC program based on design drawings and the like.

Next, the tool management device 6 inputs the intermediate NC program created above, and exchanges data and requests with the tool magazine layout information storage device 5 and the tool data storage device 3 while finalizing the exchange. An NC program, a data set of processing correction values, and a tooling list are output. Tool management device 6 for performing the above processing
FIG. 2 shows the internal configuration (configuration of the processing means).

As shown in FIG. 2, the tool management device 6 includes an input unit 10, an input information storage unit 11, a final NC program creating unit 12, a correction value creating unit 13, a tooling list creating unit 14, Output means 15.

The input means 10 inputs tool data, an intermediate NC program, and tool magazine layout information, and temporarily stores them in the input information storage means 11.

In the present embodiment, a tool data search function and a tool magazine pot number search function are provided in the tool data storage device 3 and the tool magazine layout information storage device 5, respectively. Although the input means 10 of the tool management device 6 inputs the result and stores it in the input information storage means 11, predetermined tool data and a file of tool magazine layout information are stored in the input information storage means 11 in advance. The necessary tool data and tool magazine pot number may be retrieved from this file and stored.

The final NC program creating means 12 inputs the intermediate NC program, searches the tool corresponding to the tool specified by the intermediate NC program from the tool magazine layout information, and uses the tool magazine pot number of the corresponding tool. , Replace the tool number of the tool in the intermediate NC program. If there is no corresponding tool, it is replaced with an available free tool magazine pot number. A final NC program is generated by replacing the tool numbers.

The correction value generation means 13 retrieves the tool data of the tool to be used from the tool data in the tool data storage device 3 and generates a data set of the correction values for machining. The reason why the processing correction value is set as a data set in a predetermined format is that the format of the processing correction value to be read is determined by the NC program.

The tooling list creating means 14 determines the final N
The tool number in the C program is combined with the tool data of the corresponding tool, and a tooling list is created in a predetermined format, preferably a format that can be specified by the user.

FIG. 3 shows a specific processing flow for creating a data set of machining correction values, a final NC program, and a tooling list by the tool management device 6.

As shown in FIG. 3, when the tool management device 6 inputs an intermediate NC program (step 310), first, an NC machine tool to be used is selected (step 32).
0). This is because when there are a plurality of NC machine tools connected to this system, the respective tool magazine layouts and stored tools are different.

Next, the tool management device 6 searches the tool magazine layout information of the selected NC machine tool, and confirms whether or not the tool used in the intermediate NC program has been registered (step). 330). If the tool specified in the intermediate NC program is registered in the tool magazine layout of the NC machine tool, the tool number in the intermediate NC program is replaced with the tool magazine pot number of the corresponding tool (step 34).
0).

In step 330, if the tool corresponding to the tool in the intermediate NC program is not registered in the tool magazine layout information, the tool management device 6 removes the empty tool magazine pot of the NC machine tool from the tool magazine layout information. Search and select an appropriate one (step 350).

Next, the tool management device 6 determines whether or not the tool used in the selected empty tool magazine pot interferes with the tool in the adjacent tool magazine pot (step 360). Specifically, this determination is made by adding the tool diameter (radius) stored in the adjacent tool magazine pot and the tool diameter (radius) of the tool to be used, and determining whether the sum is less than or equal to the tool diameter (diameter) D to be used. , Is determined. As a result, if it does not interfere with the tool in the adjacent tool magazine pot, the tool number in the intermediate NC program is replaced with the empty tool magazine pot number (step 34).
0).

On the other hand, if it interferes with a tool in an adjacent tool magazine pot, the process returns to step 350, another free tool magazine pot is selected, and steps 360 to 3 are performed.
Step 40 is repeated.

After all the tool numbers in the intermediate NC program have been replaced with the predetermined tool magazine pot numbers, the NC program is output as the final NC program (step 380). Further, a processing correction value required for actual processing is output together with the final NC program (step 370). The output of the processing correction value is performed by retrieving the tool data of the tool specified by the final NC program using the tool data storage device 3, preparing the data into a data set of a predetermined format, and outputting the data. Further, a tooling list is output together with the output of the final NC program and the processing correction value (step 390). This touring list is the last N
From the C program, the tool number of the tool to be used, the tool type, the tool name, the number of revolutions, and information such as the feed speed are extracted and output in a predetermined format.

Returning to the block diagram of FIG. 1, when the final NC program, the machining correction value, and the tooling list are created as described above, the tool management device 6 uses the NC machine tool used through the local area network. The final NC program and the processing correction value are directly input to any of the control devices 7a to 7n. On the other hand, the tooling list is output to the tooling list output device 8 installed near the NC machine tool for the convenience of the confirmation of the operator of the NC machining.

With the above-described tooling support for NC processing,
Actions such as creation of a tooling list by an NC programmer, input of an NC program by an NC machining operator, creation of a final NC program, input of a machining correction value, correction of a tooling list, and the like are omitted. Therefore, the time and labor required for the above-mentioned various operations are largely omitted, and occurrence of mistakes can be prevented.

In the tooling support system 1 of the above embodiment, the tool presetter 2, the NC machine tool controllers 7a to 7n, and the tooling list output device 8 are connected. It has a creating means 14, and furthermore, various devices constituting the system are connected by a local area network.

However, the central part of the present invention is to centrally manage the tool data, the intermediate NC program and the tool magazine layout information by a computer, and to output the final NC program and the machining correction value. A tooling support system having a portion including an apparatus, an intermediate NC program creating apparatus, a tool magazine layout information storage apparatus, and a tool managing apparatus (excluding a tooling list creating means) may be used.

The communication means between the system components is not limited to the local area network, and any known communication means can be used. Tool presetter 2,
The NC machine tool control devices 7a to 7n and the tooling list output device 8 are appropriately added according to the use status or a user's request.

[0059]

As is apparent from the above description, according to the "tooling support system and tooling support method in NC machining" of the present invention, tool data, intermediate NC programs, and tool magazine layout information are integrated by a computer. It is possible to create a final NC program by automatically managing the tool number of the intermediate NC program with the tool magazine pot number of the used tool, and to create a machining correction value using the tool data of the used tool. it can. Thereby, the tooling list is created by the NC programmer, the NC program is input by the NC machining operator, the tool data is input, and the final N
Work such as change to the C program is omitted, time and labor are greatly reduced, and occurrence of mistakes can be prevented.

According to the "Tooling support system and tooling support method in NC machining" of the present invention when a tooling list is output, the tool number, tool type, tool name, machining speed of the tool based on the final NC program And the like can be quickly supplied to the NC machining operator without human labor and time.

Further, according to the "tooling support system in NC machining" of the present invention connected by a local area network, data and requests can be input to the system from one of the devices constituting the system.
A series of processes from generation of an intermediate NC program to machining control in the NC machining can be performed quickly and accurately. In particular, when the place where the NC program is created and the site where the NC machining is performed are far apart, efficient N
Supply of a C program can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration and a processing flow of a “tooling support system in NC machining” according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of a tool management device of a “tooling support system in NC machining” according to an embodiment of the present invention and a flow of processing thereof.

FIG. 3 is a flowchart showing a flow of creating a final NC program, a machining correction value, and a tooling list in the tool management device of the “tooling support system in NC machining” according to an embodiment of the present invention.

FIG. 4 is a flowchart showing a flow of supply of an NC program in conventional NC machining.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tooling support system 2 Tool presetter 3 Tool data storage device 4 Intermediate NC program creation device 5 Tool magazine layout information storage device 6 Tool management device 7 NC machine tool control device 8 Tooling list output device 10 Input means 11 Input information storage means 12 Final NC program creation means 13 Correction value creation means 14 Tooling list creation means 15 Output means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuto Sasaki 2-4, Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Keihin Works Co., Ltd. (72) Inventor Baba Hirishi 580, Machi, Solid Square Toshiba Tungaloy Co., Ltd.

Claims (9)

[Claims] 1. A tool data storage device storing tool data, an intermediate NC program creating device for generating an intermediate NC program by inputting a machining shape and machining conditions, and a tool storing tool magazine layout information of an NC machine tool A magazine layout information storage device, and an intermediate NC program generated by the intermediate NC program creating device are input, and a tool corresponding to a tool specified by the intermediate NC program is set in a tool magazine layout of the tool magazine layout information storage device. By searching from the information, replace the tool number of the intermediate NC program with the tool magazine pot number of the corresponding tool, or replace the tool number with the available free tool magazine pot number if there is no corresponding tool.
Means for creating a final NC program for creating a program;
A tool management device having a correction value generating means for obtaining tool data of a tool to be used from the tool data storage device and generating a data set of a processing correction value. Support system. 2. The tool management device according to claim 1, further comprising: a tooling list creating means for creating a tooling list including a tool number in the final NC program and tool data of a tool having the tool number in a predetermined format. The tooling support system in NC machining according to claim 1, wherein 3. The tool data storage device according to claim 1, wherein the tool data storage device is connected to a tool presetter for measuring tool data, and directly inputs the tool data measured by the tool presetter. Tooling support system in the NC processing described in [1]. 4. The tool management device according to claim 1, wherein at least one N
4. An output device connected to a control device of the C machine tool, for outputting a data set of the final NC program and the processing correction value to the NC machine tool control device. The tooling support system in the NC processing according to any one of the above. 5. The tool management device according to claim 1, further comprising an output unit connected to a tooling list output device installed near the NC machine tool and outputting the tooling list to the tooling list output device. Item 5. A tooling support system in NC processing according to item 4. 6. The apparatus according to claim 6, wherein said tool data storage device and said intermediate NC
A program creation device, the tool magazine layout information storage device, and the tool management device are connected by a local area network, and data or instructions can be input / output by any constituent device of the local area network. The tooling support system in the NC processing according to claim 1. 7. The tool presetter, the tool data storage device, the intermediate NC program creation device, the tool magazine layout information storage device, the tool management device, the NC machine tool control device, 6. The tooling support system in NC processing according to claim 5, wherein the tooling list output device is connected to a local area network, and data or instructions can be input / output by any constituent device of the local area network. 8. A tool database for storing and managing tool data, and a tool magazine layout database for storing and managing tool magazine layout information of an NC machine tool. An intermediate NC program is input, and the program is designated by the intermediate NC program. The corresponding tool and the corresponding tool are searched from the tool magazine layout database, and the tool number of the intermediate NC program is replaced with the tool magazine pot number of the corresponding tool, or if there is no corresponding tool, an available free tool magazine pot number To create a final NC program, obtain tool data of a tool to be used from the tool database, generate a data set of machining correction values, and convert the final NC program and the data set of machining correction values to NC. Output to the control device of the machine tool Tooling support method in NC machining, wherein. 9. A data set of the final NC program and the correction value for processing is created, and the final NC program is created.
The NC according to claim 8, wherein a tooling list including a tool number in the program and tool data of the tool of the tool number is output in a predetermined format.
Tooling support method in processing.