JP2022187261A - Information output system and information output method - Google Patents

Abstract

To provide a user with information relating to handling of a tool.SOLUTION: An information output system 10 includes: a history data creation part 40 for creating first history data relating to a wear history of a first tool included in a machine tool 20; a tool data storage part 50 for storing tool data relating to a plurality of types of tools including the first tool; and an information output part 60 for outputting information for proposing a user of the machine tool 20 handling of the first tool or plurality of types of tools on the basis of the first history data and the tool data.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to an information output system and an information output method.

Conventionally, there is known a cutting machine that displays the remaining tool life (for example, Patent Document 1). The cutting machine of Patent Document 1 includes an LED lamp and a control device. This control device has a computing unit that computes the remaining life of the tool, and an operating unit that operates the LED lamp based on the computed remaining life of the tool.

JP 2018-15820 A

However, the cutting machine of Patent Literature 1 displays the remaining life of the tool through the LED lamp, but does not present any information about the action that the user should take. Under such circumstances, one of the purposes of the present disclosure is to provide the user with information regarding the handling of the tool.

One aspect of the present disclosure relates to an information output system. The information output system includes a history data creation unit that creates first history data relating to the wear history of a first tool provided in a machine tool, and a tool data storage that stores tool data relating to a plurality of types of tools including the first tool. and an information output unit configured to output information for proposing handling of the first tool or the plurality of types of tools to a user of the machine tool based on the first history data and the tool data. Prepare.

Another aspect of the present disclosure relates to an information output method. The information output method includes a history data creation step of creating first history data relating to the wear history of a first tool provided in a machine tool; and an information output step of outputting information for proposing handling of the first tool or the plurality of types of tools to a user of the machine tool based on the data.

According to the present disclosure, information regarding tool handling can be presented to the user.

1 is a block diagram showing the configuration of an information output system according to Embodiment 1; FIG. 4 is a flowchart of an information output method according to Embodiment 1; FIG. 11 is a block diagram showing the configuration of an information output system according to Embodiment 2; FIG. 9 is a flowchart of an information output method according to Embodiment 2;

Embodiments of an information output system and an information output method according to the present disclosure will be described below with examples. However, the disclosure is not limited to the examples described below. In the following description, specific numerical values and materials may be exemplified, but other numerical values and materials may be applied as long as the effects of the present disclosure can be obtained.

(information output system)
An information output system according to the present disclosure includes a history data creation unit, a tool data storage unit, and an information output unit.

The history data creation unit creates first history data relating to the wear history of the first tool of the machine tool. The machine tool may be, for example, a machining center, but is not limited to this. The first tool may be, for example, an end mill, but is not limited to this. The first history data may include, for example, data indicating the relationship between the usage time of the first tool (accumulated time during which the first tool is used for machining the workpiece) and the degree of wear of the first tool. The first tool may be deemed not to continue to be used if the degree of wear reaches a predetermined threshold.

The tool data storage stores tool data relating to a plurality of types of tools including the first tool. The multiple types of tools may include tools of the same type as the first tool. A tool of the same type as the first tool may be a newer type of tool than the first tool. The tool data store may consist of any type of storage device.

The information output unit outputs information for proposing handling of the first tool or the plurality of types of tools to the user of the machine tool based on the first history data and the tool data. The information output unit may output the information to, for example, a display device provided in the machine tool. A machine tool user can appropriately handle a plurality of types of tools based on such information.

The information output unit may output information as to whether the first tool should be ground and reused or the first tool should be replaced with a new tool, based on the first history data and the tool data. For example, the information output unit outputs such information based on whether it is more economical to grind and reuse the first tool or to replace the first tool with a new tool. good too. In general, the higher the frequency of use of the first tool, the more economical the latter tends to be.

The first history data may include data relating to the wear history of the first tool under first machining conditions, which are machining conditions performed by the machine tool. The tool data may include data relating to a second tool that is interchangeable with the first tool, and second history data relating to the wear history of the second tool under a plurality of machining conditions. When outputting information indicating that the first tool should be replaced with a new tool, the information output unit outputs the first history data corresponding to the first machining condition and the first machining condition among the plurality of machining conditions. Information may be output as to whether the first tool should be replaced with a new one or the second tool based on the second history data corresponding to the closest machining conditions. Here, when there are a plurality of candidates for the machining condition closest to the first machining condition, the user can select "the machining condition closest to the first machining condition" from such a plurality of machining conditions. may According to the above configuration, the first tool and the second tool can be compared with respect to similar machining conditions. Then, based on such a comparison, when replacing the first tool, the user can appropriately select whether to replace with a new first tool or replace with a second tool. The second tool may, for example, be a new tool of the same type and model as the first tool. The second tool (tool that is a candidate for replacement) may be of one type or of a plurality of types.

The information output system may further include a server device capable of communicating with the machine tool. The history data creation section may be included in the machine tool, the tool data storage section may be included in the server device, and the information output section may be included in the machine tool or the server device. Regardless of whether the information output unit is included in the machine tool or the server device, the information output by the information output unit may be displayed on the display device provided in the machine tool.

The tool data may include data regarding the number of each of the plurality of types of tools, including the first tool, housed in the tool magazine of the machine tool. The information output unit may output information as to whether or not the number of each of the plurality of types of tools housed in the tool magazine should be changed, based on the first history data and the tool data. According to the above configuration, the user can know information for optimizing the number of tools accommodated in the tool magazine for each of a plurality of types of tools.

The first history data may include data on the frequency of use of each of the multiple types of tools. When outputting information indicating that the number of at least some of the plurality of types of tools housed in the tool magazine should be changed, the information output unit determines whether tools with a relatively high frequency of use are relatively used. Information may be output indicating that more tools should be stored in the tool magazine than less frequently used tools. In other words, the information output unit may output information indicating that the higher the frequency of use of each of the plurality of types of tools, the more tools should be accommodated in the tool magazine. According to this configuration, the user can easily optimize the number of tools to be stored according to the frequency of use of each tool.

The first history data may include data on the frequency of use of each of the multiple types of tools. When the information output unit outputs information indicating that the number of at least some of the plurality of types of tools housed in the tool magazine should be changed, the frequency of use of at least some of the tools is the first period ( For example, when there is an upward trend over a certain period of time before changing the number of accommodation (for example, when the slope of the approximate straight line of the graph showing the change in usage frequency in the first period is a positive value equal to or greater than a predetermined absolute value) , when the number of at least some of the tools stored is increased, while the frequency of use of the at least some of the tools tends to decrease over the first period (for example, when the approximate straight line of the graph showing the change in the is a negative value equal to or greater than a predetermined absolute value), information indicating that the number of the at least some tools to be accommodated should be reduced may be output. In other words, the information output unit may output information indicating that the number of tools to be accommodated should be increased or decreased according to an increase or decrease in usage frequency for an arbitrary tool among a plurality of types of tools. According to this configuration, the user can easily optimize the storage number of any tool according to the frequency of use of the tool.

The history data creation section, tool data storage section, and information output section may be included in the machine tool. The machine tool may include a display device that receives and displays the information output by the information output unit. The display device may be, for example, a touch panel type operation panel.

(Information output method)
An information output method according to the present disclosure includes a history data creation process and an information output process.

In the history data creation step, first history data relating to the wear history of the first tool of the machine tool is created. The machine tool may be, for example, a machining center, but is not limited to this. The first tool may be, for example, an end mill, but is not limited to this. The first history data may include, for example, data indicating the relationship between the usage time of the first tool and the degree of wear of the first tool. Also, the first history data may include, for example, data indicating the frequency of use of the first tool.

In the information output step, information for proposing handling of the first tool or the plurality of types of tools to the user of the machine tool based on the first history data and tool data relating to the plurality of types of tools including the first tool. to output The multiple types of tools may include tools of the same type as the first tool. A tool of the same type as the first tool may be a newer type of tool than the first tool. A machine tool user can appropriately handle a plurality of types of tools based on the above information.

As described above, according to the present disclosure, information regarding tool handling can be presented to the user. Also, according to the present disclosure, the user can be presented with whether the first tool should be sharpened or replaced. Further, according to the present disclosure, the user can be presented with information for optimizing the number of each of the multiple types of tools to be accommodated in the tool magazine.

An example of an information output system and an information output method according to the present disclosure will be specifically described below with reference to the drawings. The components and steps described above can be applied to the components and steps of the example information output system and information output method described below. The components and steps of the exemplary information output system and method described below may vary based on the above description. Also, the matters described below may be applied to the above embodiments. Among the components and processes of the example information output system and information output method described below, components and processes that are not essential for the information output system and information output method according to the present disclosure may be omitted. It should be noted that the drawings shown below are schematic and do not accurately reflect the actual shape and number of members.

<<Embodiment 1>>
A first embodiment of the present disclosure will be described. As shown in FIG. 1 , an information output system 10 of this embodiment includes a machine tool 20 and a server device 30 . The machine tool 20 and the server device 30 can communicate with each other via the network N.

The machine tool 20 may be, for example, a machining center, but is not limited to this. The machine tool 20 has a history data creation section 40 , an information output section 60 and a display section 70 . Note that the history data creation unit 40 may be provided in a machine tool (not shown) different from the machine tool 20 . In the latter case, first historical data (described below) generated by the other machine tool may be sent to machine tool 20 in any manner.

The history data creation unit 40 creates first history data regarding the wear history of the first tool (for example, end mill) of the machine tool 20 . The first history data includes data related to the wear history of the first tool under first machining conditions, which are machining conditions performed by the machine tool 20 . Machining conditions include the feed rate of the first tool, the type of work material, and the like. The wear history of the first tool under the first machining condition may be, for example, information indicating the relationship between the usage time of the first tool under the first machining condition and the degree of wear of the first tool.

The first historical data may further include data regarding frequency of use of the first tool. The usage frequency of the first tool may be, for example, information indicating how many minutes the first tool is used on average per day.

The information output unit 60 outputs information for proposing the handling of the first tool or a plurality of types of tools to the user of the machine tool 20 on the basis of the first history data and the tool data (to be described later) sent from the server device 30. Output. The functions of the information output unit 60 will be described later in detail. The information output unit 60 may be configured by an arithmetic device included in the machine tool 20 . The information output by the information output section 60 is sent to the display section 70 .

The display unit 70 displays the information sent from the information output unit 60 in a user-recognizable manner. For example, the display unit 70 may visually display the information. The display unit 70 may be configured by, for example, a control panel that the machine tool 20 has.

The server device 30 is a computer that includes an arithmetic device and a storage device. The server device 30 has a tool data storage section 50 . The tool data storage unit 50 may be provided in a storage device.

The tool data storage unit 50 stores tool data regarding a plurality of types of tools including the first tool. The tool data includes data on a second tool that is interchangeable with the first tool, and second history data on the wear history of the second tool under a plurality of machining conditions. The wear history of the second tool under a plurality of machining conditions is, for example, the relationship between the usage time of the second tool (accumulated time during which the second tool is used for machining the workpiece) under each machining condition and the degree of wear of the second tool. It may be the information shown. The tool data may further include information on prices of multiple types of tools including the first tool.

At least part of the tool data may be created, for example, by measuring the dimensions of each tool during machining by the machine tool 20, or by measuring the dimensions of each tool during machining by a machine tool (not shown) other than the machine tool 20. It may be created by dimensional measurements of the tool. For such dimension measurement, a technique of imaging each tool, a technique of contact-measuring each tool, a technique of measuring each tool without contact, or the like can be used.

- Functions of the information output section -
Based on the first history data and the tool data, the information output unit 60 determines whether the first tool should be ground and reused, or whether the first tool should be replaced with a new tool (including the first tool and other tools). Print information about what to do. For example, the information output unit 60 determines which is lower cost, grinding and reusing the first tool, or replacing the first tool with a new tool, and determines whether the cost is lower. Information for recommending the lower one to the user of the machine tool 20 may be output.

Alternatively or additionally, when the first history data includes data regarding the frequency of use of the first tool, the information output unit 60 outputs the first While outputting information indicating that one tool should be ground and reused, it indicates that the first tool should be replaced with a new tool when the frequency of use of the first tool is equal to or greater than the first threshold. information may be output. In this case, the information output unit 60 should also reduce the number of first tools stored in the tool magazine 21 provided in the machine tool 20, for example, when the frequency of use of the first tools is lower than the second threshold. You may output the information that there is. The first threshold and the second threshold may be the same or different.

Further, when outputting information indicating that the first tool should be replaced with a new tool, the information output unit 60 outputs the first history data corresponding to the first machining condition and the first one of the plurality of machining conditions. Based on the second history data corresponding to the machining conditions closest to the one machining condition, information is output as to whether the first tool should be replaced with a new one or the second tool. For example, if the second tool has the same performance as the first tool but is cheaper than the first tool, or if the second tool has the same price and higher performance, Information indicating that one tool should be replaced with a second tool may be output. High tool performance means, for example, that the degree of wear per unit time is small under the same machining conditions.

Although the configuration in which the machine tool 20 includes the information output unit 60 has been described above, the information output unit 60 may be provided in the server device 30 . In this case, the first history data is sent from the machine tool 20 to the server device 30 for processing by the information output unit 60 . The information output unit 60 may be configured by an arithmetic device included in the server device 30 .

-Information output method-
Next, an information output method that can be executed in the information output system 10 described above will be described. The information output method includes, as shown in FIG. 2, a history data creation step (ST11) and an information output step (ST12).

In the history data creation step, the history data creation unit 40 creates first history data. In the present embodiment, the history data creation unit 40 creates data regarding the wear history of the first tool under the first machining conditions when the machine tool 20 performs workpiece machining under the first machining conditions.

In the information output step, the information output unit 60 outputs information for proposing the handling of the first tool or the plurality of types of tools to the user of the machine tool based on the first history data and the tool data. In this embodiment, the information output unit 60 outputs information as to whether the first tool should be ground and reused, or whether the first tool should be replaced with a new tool, based on the first history data and the tool data. .

<<Embodiment 2>>
A second embodiment of the present disclosure will be described. As shown in FIG. 3, the information output system 10 of this embodiment includes a machine tool 20. As shown in FIG.

The machine tool 20 may be, for example, a machining center, but is not limited to this. The machine tool 20 has a tool magazine 21 , a history data creation section 40 , a tool data storage section 50 , an information output section 60 and a display section 70 .

The tool magazine 21 accommodates a plurality of types of tools including a first tool (for example, an end mill) that the machine tool 20 has. The plurality of types of tools may be any number of types as long as they are two or more types. Tool magazine 21 may be able to accommodate, for example, 30 to 50 tools.

The history data creation unit 40 creates first history data regarding the wear history of the first tool. The first history data includes data on the frequency of use of each of the multiple types of tools including the first tool. The data on frequency of use may be, for example, information indicating how many minutes on average each of a plurality of types of tools is used per day.

The tool data storage unit 50 stores tool data regarding a plurality of types of tools including the first tool. The tool data includes data regarding the number of each of the multiple types of tools stored in the tool magazine 21 . The number of each of a plurality of types of tools is, for example, assuming that there are a total of 10 tools of three types (first to third tools), three of the first tools, three of the second tools, and three of the third tools. may be stored in the tool magazine 21, respectively.

The information output unit 60 outputs information for proposing to the user of the machine tool 20 how to handle the first tool or multiple types of tools based on the first history data and the tool data. The function of the information output section 60 will be described later in detail. The information output unit 60 may be configured by an arithmetic device included in the machine tool 20 . The information output by the information output section 60 is sent to the display section 70 .

The display unit 70 displays the information sent from the information output unit 60 in a user-recognizable manner. For example, the display unit 70 may visually display the information. The display unit 70 may be configured by, for example, a control panel that the machine tool 20 has.

- Functions of the information output section -
The information output unit 60 outputs information as to whether or not the number of each of the plurality of types of tools housed in the tool magazine 21 should be changed based on the first history data and the tool data. For example, the information output unit 60 obtains the optimum storage number of the plurality of types of tools based on the frequency of use of each of the plurality of types of tools. You may output the information that the accommodation number should be changed.

Furthermore, when the information output unit 60 outputs information indicating that the number of at least some of the plurality of types of tools stored in the tool magazine 21 should be changed, the tools with a relatively high frequency of use are Information indicating that more tools should be stored in the tool magazine 21 than tools with a relatively low frequency of use is output.

As a specific example, at present, there are a total of 10 tools of three types (first to third tools), three of the first tools, three of the second tools, and four of the third tools, each stored in the tool magazine 21. assumed to be housed. Furthermore, the first history data (data of frequency of use) is 180 minutes per day on average for the first tool, 90 minutes per day for the second tool on average, and 90 minutes per day for the third tool on average. Suppose that the information indicates that they have been used for 180 minutes. In this case, the frequency of use of the first tool and the frequency of use of the third tool are twice the frequency of use of the second tool. desirable. Therefore, the information output unit 60 outputs information that four first tools, two second tools, and four third tools should be stored in the tool magazine 21 .

Note that the information output unit 60 may output information indicating that the types of tools whose number should be reduced should be ground when they are removed from the tool magazine 21 . A user who sees such information can take out a tool of the relevant type from the tool magazine 21 and sharpen it. Accordingly, when the type of tool is to be used again, the tool magazine 21 can accommodate the sharpened tool.

-Information output method-
Next, an information output method that can be executed in the information output system 10 described above will be described. The information output method includes, as shown in FIG. 4, a history data creation step (ST21) and an information output step (ST22).

In the history data creation step, the history data creation unit 40 creates first history data. In this embodiment, the history data creation unit 40 creates data regarding the frequency of use of each of the plurality of types of tools when the machine tool 20 uses a plurality of types of tools including the first tool to machine a workpiece. do.

In the information output step, the information output unit 60 outputs information for proposing the handling of the first tool or the plurality of types of tools to the user of the machine tool based on the first history data and the tool data. In this embodiment, the information output unit 60 outputs information as to whether or not to change the number of each of the multiple types of tools housed in the tool magazine 21 based on the first history data and the tool data.

<<Embodiment 3>>
In Embodiments 1 and 2, tool information such as the tool length and tool diameter of the tool and information such as the history of tool wear based on the machining conditions are accumulated, and appropriate information about the tool is provided to the user. I explained the information output system to provide to.

This embodiment machine-learns such information, the arrangement of the tools in the tool magazine, the order of use of the tools in the machining program, etc., and as a result of the machine learning, the machining time is minimized for the machining program. The present invention relates to an information output system that proposes rearrangement of tools in a tool magazine. In the proposal regarding the arrangement of tools in the tool magazine, if the structural information of the tool magazine inside the machine tool is sent to the server, the server can determine the arrangement of the tools that can be stored from the structure of the tool magazine. The results can be displayed on the display screen of the operation panel of the machine tool. The user can insert a tool into each pot based on the arrangement of tools in the tool magazine displayed on the display screen. Since all past information is machine-learned, the overall machining time for the machining program can be minimized. In addition, for example, when a series of machining programs is executed, if it is determined that there is a tool that needs to be replaced during the process, a message to replace the tool with a new one and insert it into the magazine pot is displayed on the operation panel during the setup stage. may be displayed on the screen.

INDUSTRIAL APPLICABILITY The present disclosure can be used for an information output system and an information output method.

10: Information output system 20: Machine tool 21: Tool magazine 30: Server device 40: History data creation unit 50: Tool data storage unit 60: Information output unit 70: Display unit N: Network

Claims (8)

a history data creation unit that creates first history data relating to the wear history of a first tool included in the machine tool;
a tool data storage unit that stores tool data relating to a plurality of types of tools including the first tool;
an information output unit that outputs information for proposing handling of the first tool or the plurality of types of tools to a user of the machine tool based on the first history data and the tool data;
An information output system. The information output unit outputs information as to whether the first tool should be ground and reused, or whether the first tool should be replaced with a new tool, based on the first history data and the tool data. The information output system according to claim 1. The first history data includes data related to the wear history of the first tool under first machining conditions, which are machining conditions performed by the machine tool,
The tool data includes data on a second tool that is replaceable with the first tool, and second history data on the wear history of the second tool under a plurality of machining conditions,
When outputting information indicating that the first tool should be replaced with a new tool, the information output unit outputs the first history data corresponding to the first machining condition and 2. Outputting information as to whether the first tool should be replaced with a new one or the second tool based on the second history data corresponding to a machining condition closest to the first machining condition. The information output system described in . further comprising a server device capable of communicating with the machine tool,
The history data creation unit is included in the machine tool,
The tool data storage unit is included in the server device,
4. The information output system according to claim 2, wherein said information output unit is included in said machine tool or said server device. The tool data includes data relating to the number of each of a plurality of types of tools, including the first tool, contained in a tool magazine of the machine tool,
2. The information output unit according to claim 1, wherein the information output unit outputs information as to whether or not the number of each of the plurality of types of tools housed in the tool magazine should be changed based on the first history data and the tool data. Information output system described. The first history data includes data regarding frequency of use of each of the plurality of types of tools,
When outputting information that the number of at least some of the plurality of types of tools to be accommodated in the tool magazine should be changed, the information output unit outputs tools that have a relatively high frequency of use. 6. The information output system according to claim 5, which outputs information indicating that more tools should be stored in said tool magazine than tools that are used less frequently. 7. The information output system according to claim 5, wherein said history data creation section, said tool data storage section, and said information output section are included in said machine tool. a history data creation step of creating first history data relating to the wear history of a first tool provided in the machine tool;
Information for proposing handling of the first tool or the plurality of types of tools to the user of the machine tool based on the first history data and tool data regarding the plurality of types of tools including the first tool. an information output step of outputting
An information output method.

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