JP2023183429A - Cut processing system - Google Patents

Abstract

To provide a cut processing system which can reduce power consumption by suitably setting cut processing information in a processing device and can consequently cut down the amount of CO2 emission.SOLUTION: In a cut processing system which sets cut processing information of a processing device, after constituting a database by associating power consumption, cut workpiece information, tool information, and processing condition information so as to coordinate, a power consumption is extracted from the database on the basis of at least the input cut workpiece information, tool information, and processing condition information. Further, on the basis of material information of the cut workpiece, the tool information, processing condition information, and power consumption registered in the database are extracted, and a candidate power consumption is calculated by using the processing shape information of the cut workpiece to display the power consumption extracted from the database, calculated candidate power consumption, and tool information and processing condition information associated with them.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cutting system that sets cutting information for a processing device that cuts metal materials, and particularly relates to a cutting system that presents cutting information that can reduce power consumption.

Processing equipment used for cutting metal materials, such as NC processing equipment (machine tools represented by machining centers, turning centers, etc.), generally has a main spindle temperature adjustment device, a cutting oil supply device, and an air supply. A device is provided as ancillary equipment.

In order to ensure machining accuracy and ensure stable operation of the machining equipment, the auxiliary equipment must be kept in operation at all times. By the way, the amount of power consumed during standby is mainly due to the operation of auxiliary equipment, control devices of processing equipment, etc. (servo amplifiers, etc.) that are always in operation. On the other hand, the amount of power consumed per unit time during the cutting operation of a processing device that processes a metal material (hereinafter referred to as a workpiece) is even larger than the amount of power consumed during standby.

As described above, an increase in power consumption results in an increase in CO ₂ emissions at the power plant. For this reason, there is a need for a processing device that can reduce power consumption, and for example, Japanese Patent Laid-Open No. 2019-82894 (Patent Document 1) proposes a processing condition adjustment device having the following configuration.

Patent Document 1 introduces a machine learning device that constructs a learning model that takes into account power consumption and cycle time based on state data such as processing conditions and cycle time for each tool used in processing of a manufacturing machine, The machining condition adjustment device uses the learning model that is the learning result of the machine learning device to adjust the machining conditions based on the state data obtained from the manufacturing machine, and then adjusts the machining conditions as a result of executing the machining operation based on the adjusted machining conditions. The configuration is such that adjustment of machining conditions can be evaluated using power consumption and cycle time as determination data.

Japanese Patent Application Publication No. 2019-82894

As in Patent Document 1, it is effective to set processing conditions with low power consumption in accordance with manufacturing machines with long cycle times, and to reduce the power consumption of multiple manufacturing machines as a whole. However, since the method in Patent Document 1 is a technology for optimizing the current operating state, it does not take into account further reductions in power consumption and CO ₂ emissions. Against this background, there is a need to reduce the amount of power consumed by this type of processing equipment as much as possible to reduce CO2 emissions.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cutting system that can appropriately set cutting information in a processing device to reduce power consumption and, as a result, reduce CO2 emissions.

In the present invention,
A cutting system that sets cutting information in a processing device that performs cutting on a workpiece,
a power measurement unit that measures the power of the processing equipment and ancillary equipment of the processing equipment;
a measurement data processing unit that calculates power consumption based on power data measured by the power measurement unit;
a database in which work material information of a workpiece, tool information of a cutting tool, machining condition information, and power consumption are linked and registered in the processing device that measured the power consumption;
an input section for inputting tool information, machining condition information, and work material information of a cutting tool to be evaluated (hereinafter referred to as an evaluation cutting tool);
an evaluation tool power consumption extraction unit that extracts power consumption under conditions matching the input evaluation cutting tool tool information, machining condition information, and work material information from the database;
Based on the work material information of the work material to be cut with the evaluation cutting tool, candidates that match the material information of the work material registered in the database are extracted, and per unit volume corresponding to the extracted candidates. The candidate power consumption is calculated from the power consumption of , a candidate power consumption calculation unit that selects a plurality of candidate power consumption amounts;
The power consumption extracted by the evaluation tool power consumption extraction section, the tool information and machining condition information linked to this, the candidate power consumption selected by the candidate power consumption calculation section, and the linked tool information and machining condition information. The present invention is characterized by comprising a display device that displays tool information and machining condition information.

According to the present invention, recommended cutting information with low power consumption is presented for the cutting tool currently in use, and the cutting information is changed with reference to the presented recommended cutting information. By doing so, the power consumption of the processing equipment can be reduced as much as possible, and as a result, the amount of CO2 emissions can be reduced.

FIG. 1 is a configuration diagram for explaining the configuration of a cutting system. FIG. 2 is a configuration diagram for explaining the detailed configuration of a cutting system. FIG. 3 is a flowchart diagram illustrating a processing flow for constructing a database. FIG. 2 is an explanatory diagram illustrating an example of registered information regarding work materials and cutting tools registered in a database. FIG. 2 is an explanatory diagram illustrating an example of registered information regarding machining conditions and power consumption registered in a database. It is a flowchart figure explaining the control flow which calculates the power consumption amount regarding the cutting tool to evaluate, and calculates the power consumption amount using a database. It is a figure which shows the example of the display screen explaining the input button of cutting process information, and an operation button on a display device. It is an explanatory view explaining the first calculation result of the power consumption of the evaluated cutting tool and the power consumption in the cutting information registered in the database. It is an explanatory view explaining the measurement result of power consumption based on selected cutting processing information. It is an explanatory view explaining the second calculation result of the power consumption of the evaluated cutting tool and the power consumption in the cutting information registered in the database.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. In this embodiment, a processing apparatus that performs cutting of a workpiece will be described below with reference to the accompanying drawings. In all the figures for explaining the embodiment, parts having the same functions are given the same reference numerals, and repeated explanations thereof will be omitted in principle.

However, the present invention should not be construed as being limited to the contents described in the embodiments shown below. Those skilled in the art will readily understand that the specific configuration can be changed without departing from the spirit or spirit of the present invention.

In this embodiment, in a cutting system that sets cutting information of a processing device, after building a database by linking power consumption, workpiece information, tool information, and processing condition information, The power consumption that matches the input work material information, tool information, and machining condition information is extracted from the database, and the work material information registered in the database is extracted based on the work material information. The candidate power consumption of the extracted candidates is calculated using the power consumption per unit volume of the extracted candidates and the work material information of the extracted candidates, and the power consumption of the extracted candidates is calculated. It is characterized by displaying the power consumption extracted from the above, a plurality of recommended candidate power consumptions smaller than the power consumption, and tool information and machining condition information linked to these.

By changing the cutting information with reference to the recommended cutting information, it is possible to reduce the power consumption of the processing equipment as much as possible, and as a result, reduce CO2 emissions. Can be done. Note that by displaying the power consumption extracted from the database as well as the tool information and machining condition information linked thereto, it is possible to easily compare the power consumption with the candidate power consumption.

[Outline explanation of the cutting system including processing equipment]
FIG. 1 is a diagram schematically and illustratively showing the configuration of a cutting system according to this embodiment. FIG. 1 shows an example in which a cutting system 20 is combined with a processing device 1, and the cutting system in FIG. 1 shows an example in which a block-shaped workpiece 4 is cut with a cutting tool 2. Here, the processing device 1 is an NC milling machine, a machining center, or the like that can be controlled by an NC (Numerical Control) program.

In the processing device 1, the cutting tool 2 is fixed to the spindle 3, the spindle 3 is rotated by the spindle motor 6, and the workpiece 4 is fixed to the table 5, so that the cutting tool 2 and the workpiece 4 are relative to each other. The machine moves to process the workpiece 4 into a desired shape.

At this time, the servo amplifier 8 controls the current value input to the spindle motor 6 based on a command from the NC device 9 in which the NC program is stored. This causes the main shaft motor 6 to rotate at the specified rotation speed. Similarly, the servo amplifier 8 controls the current value input to the feed shaft motor 7 based on a command from the NC device 9. As a result, the feed shaft motor 7 is rotated so that the feed speed is as specified. The cutting tool 2 is an integrated type (solid) or an indexable end mill.

The processing device 1 is equipped with a cutting oil supply device 10, a temperature adjustment device 11, and an air supply device 12 as accessory equipment. The cutting oil supply device 10 and the temperature adjustment device 11 are supplied with power via the processing device 1, and the air supply device 12 is supplied with power from the power distribution board 13.

The cutting oil supply device 10 is a device for discharging cutting oil (not shown) into the cutting region of the cutting tool 2 and the workpiece 4 during cutting to cool the cutting tool 2, remove chips, etc. It is. The temperature adjustment device 11 is a device for adjusting (mainly cooling) the temperature of the main shaft 3. Further, the air supply device 12 is a device for attaching and detaching the cutting tool 2 to and from the spindle 3, and blowing air to remove chips.

The cutting system 20 includes a measuring section 21 , a cutting system main body 22 , a display device 23 , and a database 24 . The measuring unit 21 is composed of a wattmeter, etc., and measures power by installing a clamp current sensor 14 on a power supply cable and connecting a voltage measuring cable (not shown) to a power distribution board.

The clamp current sensor 14 a measures the total power consumption of the processing device 1 , the cutting oil supply device 10 , and the temperature adjustment device 11 , and the clamp current sensor 14 b measures the power consumption of the air supply device 12 . Note that the clamp current sensor 14a measures the total power consumption of the processing device 1, the cutting oil supply device 10, and the temperature adjustment device 11; By comparing the operating status and measurement data, it is possible to link each device to the measurement data.

The cutting system main body 22 stores the power consumption measured by the measurement unit 21 at this time, including workpiece material information, tool information, and machining condition information (rotation speed, feed rate, etc.), which are specifically shown in FIG. ) and is registered in the database 24. By repeating this process, the database 24 can be constructed and expanded. These registered work material information, tool information, and machining condition information are handled as "cutting information."

Then, using this database 24, power consumption can be calculated. First, by inputting at least workpiece material information including the material of the workpiece and the machining shape, tool information, and machining condition information, each information input from the data registered in the database 24 (cutting information) and Extract the matching power consumption.

Next, based on the input work material information, candidates that match the material information of the input work material registered in the database are extracted, and the power consumption per unit volume of the extracted candidates and the input The power consumption of the extracted candidates is determined using the machining shape information of the workpiece, and the power consumption of multiple candidates and the cutting process information (recommended (cutting information).

Then, the above-mentioned candidate power consumption amounts and the cutting processing information linked thereto are presented as screen information on the display unit 23. By selecting and setting appropriate cutting information that can reduce power consumption from the presented cutting information, the processing device executes a cutting process in accordance with this information. This makes it possible to reduce power consumption and, as a result, reduce CO2 emissions.

[Detailed explanation of cutting system]
FIG. 2 is a diagram schematically and illustratively showing the detailed configuration of the cutting system shown in FIG. 1.

The cutting system main body 22 can be configured on a general-purpose computer. Its hardware configuration includes a calculation unit 31 consisting of a CPU (Central Processing Unit), a RAM (Random Access Memory), etc., an SSD (SSD) using a ROM (Read Only Memory), an HDD (Hard Disk Drive), a flash memory, etc. A storage section 32 consisting of a solid state drive, etc., an information input section 48 consisting of input devices such as a keyboard and a mouse, a communication section 33 consisting of an NIC (Network Interface Card), input/output interface devices, etc. We are prepared.

The communication unit 33 is connected to the measurement unit 21, the database 24, and the display device 23 via a wired network, a wireless network, a separate dedicated cable, a USB (Universal Serial Bus) cable, or the like. The database 24 is composed of a storage medium such as an HDD, and the display device 23 uses a display device such as an LCD (Liquid Crystal Display) or an organic EL display.

The calculation section 31 includes a measurement data processing section 44 , a data cooperation processing section 45 , an evaluation tool power consumption extraction section 46 , and a power consumption calculation section 47 . The calculation unit 31 uses a power measurement program 39 stored in the storage unit 32, a power consumption calculation program 40, a work material/cutting tool/processing condition/power consumption coordination program 41, and a power consumption calculation program 41 for evaluating the power consumption of the evaluation tool. Each functional unit is realized by loading the amount extraction program 42 and the power consumption calculation program 43 for improved machining conditions into the RAM and executing them on the CPU.

The measurement data processing unit 44 functions by executing the power measurement program 39, and the data linkage processing unit 45 functions by running the work material/cutting tool/processing condition/power consumption linkage program 41. The evaluation tool power consumption extraction unit 46 functions by executing the evaluation tool power consumption extraction program 42, and the power consumption calculation unit 47 executes the power consumption calculation program 40 and the improved machining condition power consumption calculation program 43. It works by running

The storage unit 32 includes a workpiece information storage area 34, a tool information storage area 35, a machining condition information storage area 36, a measurement signal storage area 37, and a calculated power consumption storage area 38. Further, a power measurement program 39, a power consumption calculation program 40, a work material/cutting tool/processing condition/power consumption cooperation program 41, an evaluation tool power consumption extraction program 42, and a power consumption calculation program for improved machining conditions It has a storage area for storing each of 43 programs.

[Database description]
Next, construction of the database 24 in which work material information, tool information, machining condition information, and power consumption are linked will be explained along the flowchart of FIG. 3. Note that FIGS. 1 and 2 are also referred to as necessary.

The construction of this database 24 is executed by operating operation buttons 141, 142, 143, and 145 displayed in the operation area 104 of the screen of the display device 23 shown in FIG. 7 according to an operation procedure.

≪Step S01≫
In step S01, the processing device 1 processes the workpiece 4 using the cutting tool 2 registered in the database 24, and measures the electric power during cutting. The power consumption is measured by the measurement unit 21, and the measurement data processing unit 44 that executes the power measurement program 39 stores the measurement data from the start to the end of machining the workpiece 4 via the communication unit 33. It is stored in area 37. Note that the measured power consumption is measurement data including the processing device 1 and the auxiliary equipment 10 to 12.

≪Step S02≫
In step S02, the amount of power consumed when the cutting tool 2 registered in the database 24 is used is calculated. The power consumption is calculated by the product of the average value of power data measured from the start of machining to the end of machining by the power consumption calculation unit 47 that executes the power consumption calculation program 40 and the time required for cutting. Furthermore, the power consumption per unit volume (see FIG. 5) is calculated from the volume of the workpiece removed by cutting, and is stored in the calculated power consumption storage area 38 along with the machining time.

Note that the power consumption per unit volume reflects the tool information and machining condition information when the power consumption is calculated, and if the tool information and machining condition information differ, the power consumption per unit volume will also change. It will be different. Therefore, when calculating the candidate power consumption amount, which will be described later, by using this power consumption amount per unit volume, it is possible to calculate the candidate power consumption amount that indirectly reflects the tool information and the machining condition information.

Note that the power consumption amount is obtained by integrating power data from the start of machining to the end of machining over time, and the power consumption amount calculated by the product of the total value of power data and the sampling period can also be used.

≪Step S03≫
In step S03, information on the work material when the power consumption was measured in step S02 is input. At least the material, machining shape, and removal volume (see FIG. 4) of the workpiece are inputted as workpiece information in the information input section 48, and these are stored in the workpiece information storage area 34. Note that the removed volume is determined from the processed shape (W, D, H). Note that "W" is width, "D" is depth, and "H" is height. Note that the removed volume may be input directly or may be calculated from the processed shape.

≪Step S04≫
In step S04, tool information of the cutting tool when the power was measured is input. At least the tool type, tool material, structure, tip, tool diameter, and number of teeth (see FIG. 4) are input as tool information in the information input section 48 and stored in the tool information storage area 35.

≪Step S05≫
In step S05, processing condition information when power was measured is input. In the information input section 48, input at least the rotation speed, feed rate, cutting speed, per-blade feed amount, depth of cut (radial direction, axial direction), and whether or not cutting oil is used (see Fig. 5) as machining condition information. and stored in the machining condition storage area 36.

<<Step S06>>
In step S06, the data linkage processing unit 45 uses the workpiece/tool/processing conditions/power consumption linkage program 41 to calculate the calculated power consumption and machining time, the input workpiece information, tool information, and machining data. The condition information is linked and registered in the database 24.

In addition to the workpieces processed by the target processing equipment, cutting tools used, and processing conditions, the power consumption of cutting tools of different tool types and processing conditions can also be measured and registered in the database 24. Can be done.

There are different types of cutting tools, such as indexable square tip cutting tools with different insert tip shapes, round tip cutting tools, and cutting tools made of carbide or ceramics with different tip materials. is registered in the database 24. Furthermore, there are various processing conditions such as whether cutting oil is used or not, and these are also registered in the database 24.

Therefore, various work materials, cutting tools, machining conditions, power consumption, etc. can be registered in the database. Using this registered information, it is possible to present appropriate cutting tools and machining conditions that consume less power.

4 and 5 show reference examples of registered information in the database, which are shown divided into two parts.

The database 160 includes workpiece information 161, tool information 162, machining condition information 163, machining time 164, power consumption 165, and power consumption per unit volume (power consumption/unit volume) 166.

The volume 167 of the work material information 161 is the volume of the material of the work material to be removed by cutting, which is calculated from the shape information at the time of registration in the database 24. Further, the cutting speed 168 and the feed rate per tooth 169 of the machining conditions 163 are calculated from the tool diameter, the number of teeth, the rotation speed, and the feed rate at the time of registration in the database 24.

Further, the machining time 164 is the machining time when the power consumption 165 is measured. Power consumption/unit volume 166 is the power consumption per unit volume obtained by dividing the power consumption 165 by the volume 167 removed from the workpiece 161. As can be seen from the registration numbers #2 to #4 in FIGS. 4 and 5, the amount of power consumed per unit volume varies depending on the tool and processing conditions even if the removed volume is the same.

[Explanation of specific process for presenting cutting information]
Next, the process of executing the cutting process with the cutting tool to be evaluated for use in cutting (hereinafter referred to as the evaluation tool) and presenting recommended cutting conditions is performed according to the flowchart shown in Figure 6. explain. Note that FIGS. 1 and 2 are also referred to as necessary. The specific process of presenting this cutting information is executed by operating the evaluation/improvement button 146 displayed in the operation area 104 of the screen of the display device 23 shown in FIG.

≪Step S11≫ ~ ≪Step S13≫
In step S11, work material information of the workpiece to be cut by the evaluation tool is input, in step S12, tool information of the evaluation tool is input, and in step S13, machining condition information of the evaluation tool is input. The various information to be input is the same type of information as in step S03, step S04, and step S05 shown in FIG.

<<Step S14>>
In step S14, cutting information (already ) is searched in the database 24, and the searched corresponding cutting processing information (the cutting processing information includes tool information, processing condition information, and work material information) and information linked to this are searched. Extract the amount of power consumed.

Note that the evaluation tool is a cutting tool that is used in the cutting process of the actual product and has already been registered in the database 24, so cutting information and power consumption corresponding to the evaluation tool can be extracted. .

<<Step S15>>
In step S15, candidates registered in the database 24 are extracted based on the material of the work material information input in step 11 (here, the material (SUS304) shown in FIG. 7). The candidates extracted here are those whose material information of the work material matches, and a plurality of candidates are extracted. Then, the candidate power consumption amounts, which are the power consumption amounts of the extracted candidates, are calculated.

The candidate power consumption amount is the recommended power consumption amount for reducing the power consumption amount. Of course, not all candidates have the recommended power consumption amount, but some candidates have a power consumption amount greater than the power consumption amount determined in step S14.

The candidate power consumption is the power consumption per unit volume (power consumption/unit volume) registered in the database 24 in the extracted candidate, and the removed volume removed by cutting the input work material. It can be obtained by multiplying . Note that the removed volume may be calculated based on the processed shape or may be directly input.

Then, for all the extracted candidates, candidate power consumption is calculated by round robin using the power consumption per unit volume (power consumption/unit volume) of the extracted candidates. As described above, the power consumption per unit volume reflects the tool information and machining condition information when the power consumption registered in the database is calculated. Therefore, when determining candidate energy consumption, if you use energy consumption per unit volume to which tool information and machining strip information are linked, candidate energy consumption that indirectly reflects tool information and machining condition information can be calculated. It can be calculated.

Another method for determining the candidate energy consumption is to calculate the machining time from the axial depth of cut, radial depth of cut, feed rate, and machining shape of the workpiece in the machining conditions registered in the database 24. It is also possible to calculate the candidate power consumption based on the ratio of the processing time of the current power consumption and the calculated processing time.

<<Step S16>>
In step S16, among the candidate power consumption amounts for a plurality of workpieces made of the same material calculated in step S15, the power consumption of the same workpiece is selected in order from the power consumption smaller than the power consumption calculated in step S14. Select and extract multiple candidates corresponding to . Note that the number of candidates to be extracted is arbitrary, and the necessary number of candidates can be set. In this embodiment, three candidates (#1 to #3 in FIG. 8) are extracted.

<<Step S17>>
In step S17, the power consumption and cutting information of the evaluation tool extracted in step S14, the candidate power consumption of the plurality of candidates extracted in step S16, and the cutting information linked thereto are displayed on a display device. It is presented (displayed) on 23.

By changing the cutting processing information with reference to the presented recommended cutting processing information, it is possible to reduce the power consumption of the processing equipment as much as possible, and as a result, reduce CO2 emissions. can be achieved. Note that if there is no candidate power consumption amount smaller than the power consumption amount extracted in step S14, the tool information and machining condition information extracted in step S14 are recommended.
Information displayed on this display device 23 will be explained with reference to FIGS. 8 and 10. Note that FIGS. 8 and 10 show examples in which tool information and machining condition information are displayed among the cutting information.

[Explanation of the operation screen]
Next, the operation screen displayed on the display device 23 of the cutting system 20 will be explained. Note that this operation screen is just an example, and other operation screens may be used.

FIG. 7 shows an operation screen (GUI/Graphical User Interface) of the display device 23 in the cutting system 20 shown in FIG. This screen is an operation screen for inputting work material information, tool information, and machining condition information, and for operating the cutting system 20.

The operation screen 101 includes a workpiece information input area 102, a tool information/processing condition information input area 103, and an operation area 104.

In the work material information input area 102, work material information is input into the material input section 111 and the machining shape input sections 112a to 112c.

In the tool specification/processing condition input area 103, tool information is input into the tool type input section 121, tool material input section 122, tool structure input section 123, tip input section 124, tool diameter input section 125, and tool tooth number input section 126. do. Here, the tool type input section 121, tool material input section 122, tool structure input section 123, and tip input section 124 are configured to be selected by pull-down.

In addition, in the tool information/processing condition input area 103, processing conditions are input into the rotation speed input section 127, feed rate input section 128, radial depth of cut input section 129, axial depth of cut input section 130, and cutting oil presence/absence input section 131. . Note that whether or not to use cutting oil is selected from a pull-down menu.

In the operation area 104, by pressing the measurement start button 141, the power measurement program 39 is executed and power measurement is started, and by pressing the measurement stop button 142, the power measurement is stopped, and the measured power data is stored in the measurement signal memory. It is stored in area 37.

Furthermore, by pressing the power consumption calculation button 143, the power consumption calculation program 40 is executed, the power consumption is calculated, and the result is displayed on the power consumption display section 144. In addition, by pressing the database registration button 145, the work material/cutting tool/processing conditions/power consumption cooperation program 41 is executed, and the input work material information, tool information, processing condition information, and calculated power consumption are is registered in the database 24.

By pressing the evaluation/improvement button 146, the evaluation tool power consumption extraction program 41 and the improved machining condition power consumption calculation program 42 are executed. The power consumption of the evaluation tool corresponding to the input work material information, tool information, and machining condition information is extracted. Furthermore, based on the input material information of the work material, tool information and machining condition information registered in the database are extracted, and candidate energy consumption is determined from the removed volume of the work material and the power consumption per unit volume. is calculated, and finally a plurality of candidate power consumption amounts, corresponding tool information, and machining condition information are displayed.

FIG. 8 is an example of a display screen 150 that displays the power consumption of the evaluation tool, candidate power consumption, and cutting information from the database 24 linked to these. This display screen 150 is a screen switched from the operation screen shown in FIG. 7. On the display screen 150, at least a power consumption calculation result 151 is displayed.

The power consumption calculation result 151 extracts the tool information and machining condition information registered in the database based on the input workpiece material and machining shape, and calculates the removed volume of the workpiece and the consumption per unit volume. This is the result of calculating candidate power consumption amounts from the power amount, and further extracting three candidate power consumption amounts from the smallest to the smallest. Furthermore, in order to facilitate comparison, tool information, machining condition information, and power consumption when using the evaluation tool are displayed together.

As shown in Fig. 8, these items of information are set in the horizontal direction: (1) tool information, (2) machining condition information, (3) power consumption, and (4) ratio with evaluation tool. In the vertical direction, (1) cutting information for the evaluation tool, and (2) a plurality of extracted recommended cutting information items are set and displayed in a table format.

In FIG. 8, "#0" indicates tool information regarding the evaluation tool, machining condition information, power consumption 152, and ratio 153 to the evaluation tool, and "#1" to "#3" indicate the power consumption. It shows the ratio of tool information, machining condition information, candidate power consumption 152, and evaluation tool 153 extracted for reduction. The ratio 153 to the evaluation tool is calculated based on the power consumption 152 of the evaluation tool.

In the examples shown in FIG. 8 (“#1” to “#3”), candidate power consumption that is lower than the evaluation tool (“#0”), corresponding tool information, and machining Condition information is presented. Then, by referring to the tool information and machining condition information displayed here and changing the tool information and machining condition information of the current cutting process, it is possible to implement a cutting process with less power consumption and CO ₂ emissions can be reduced.

In addition, in FIG. 8, the candidate power consumption amount is small for the ceramic tool of "#1", but it is difficult to recycle the ceramic tool. On the other hand, in the other examples "#2" and "#3", the cutting tool is a carbide tool. Carbide tools have a well-developed recycling environment, so from the perspective of resource circulation, carbide tools have a smaller environmental impact than ceramic tools.

In order to display such information, in addition to power consumption, tool information, and machining condition information, the screen 150 may display information 154 on tool material recycling (resource circulation) as information for determining environmental impact. can. Note that if recycling technology evolves in the future, the contents of the information 154 regarding tool material recycling (resource circulation) may be changed.

FIG. 9 shows an example of measurement results of power consumption when the same volume is removed from a workpiece by cutting with different tools.

FIG. 9 shows a removal volume of 20 cm 3 using four types of cutting tools (see "tool information" in #1, #2, #3, and #4) in the database 24 shown in FIGS. ⁴ and 5. This is the result of cutting. #1, #2, #3, and #4 in FIG. 9 correspond to the cutting tools in the database 24 in FIGS. 4 and 5. Note that #1, #2, #3, and #4 will be hereinafter referred to as "#1 tool,""#2tool,""#3tool," and "#4 tool."

Figure 9 shows the power consumption of the spindle motor and feed shaft motor directly involved in cutting, and the power consumption of other auxiliary equipment and processing equipment control devices (hereinafter referred to as power consumption of auxiliary equipment). are shown separately.

In FIG. 9, the power consumption of tool #1 is large. This is because the #1 tool has a small tool diameter and a small radial depth of cut, which takes a longer machining time than other tools, and the power consumption of the ancillary equipment increases accordingly. be. Also, the power consumption of the #3 tool is lower than the #2 tool because the #3 tool has a larger tool diameter and a larger radial depth of cut than the #2 tool, so the machining time is shorter. This was due to a corresponding decrease in the amount of power consumed by ancillary equipment.

Furthermore, the power consumption of the #4 tool is lower than that of the #3 tool because the material of the #3 tool is carbide, whereas the material of the #4 tool is ceramic, which is dry machining without the use of cutting oil. This is because the coolant pump of the incidental equipment was not operating.

Note that when comparing the power consumption of the main spindle/feed axis motor, the #4 tool is larger than the #2 tool and the #3 tool. This is because the rotation speed of the #4 tool is approximately 10 times higher than that of the #2 tool and the #3 tool, and the power consumption of the spindle motor is increased.

However, tool #4 has a short machining time and does not operate the coolant pump during dry machining, which has a large effect in reducing power consumption compared to the increase in power consumption of the spindle and feed shaft motors, and other tools Power consumption is smaller than that of

Therefore, in order to reduce the power consumption of the evaluation tool, it is effective to shorten the machining time and to not operate the coolant pump without using cutting oil. In addition, here we have shown examples of whether or not coolant is used, but the coolant pump can be used to adjust and supply the required coolant discharge amount (discharge pressure) for each tool (for example, discharge amount: high, medium, low). Controlling the operation of is also effective in reducing power consumption.

In this way, the cutting system according to the present embodiment can present tool information and machining condition information that consume less power to the tool in use. Since machining condition information with low power consumption is presented for each cutting tool, by setting the machining conditions with reference to the machining condition information, it is possible to execute a cutting process with low power consumption.

Furthermore, machining conditions with low power consumption shorten the machining time, so by applying them to the entire cutting process, a cutting process with a short total machining time can be realized. Therefore, it is possible to produce the same quantity in a shorter time (short period of time), and it is possible to increase the downtime of processing equipment in conjunction with the production plan, further reducing power consumption. This makes it possible to reduce _CO2 emissions.

FIG. 10 is an example of another display screen 160 that displays the power consumption of the evaluation tool, cutting information registered in the database, and extraction results of candidate power consumption.

The display screen 160 is composed of power consumption calculation results 161. The example shown in FIG. 10 has a recyclability evaluation value 163 and an evaluation index 164 added to the example shown in FIG.

The recyclability evaluation value 163 indicates the recyclability of the tool material. Carbide, which has good recyclability, has a small evaluation value, and ceramics, which are difficult to recycle, have a large evaluation value. Further, the evaluation index 164 is the product of the power consumption amount 162 and the recyclability 163, and is an index that combines the power consumption amount and the recyclability.

In the power consumption calculation result 161, evaluation indexes 164 are displayed in descending order from #1. The ratio 165 to the evaluation tool is based on the evaluation index of the evaluation tool. The #3 tool has the lowest power consumption 162, but since the tool material is ceramic and is difficult to recycle, the recyclability evaluation value is large, and the evaluation index 164 is larger than the #1 tool and the #2 tool. Note that the recyclability evaluation value can be changed if recycling technology evolves in the future.

In addition, the recyclability evaluation value 163 is registered based on the material of the tool when it is registered in the database 24, and when calculating the power consumption by executing the power consumption calculation program 43 of the improved machining conditions, the recyclability evaluation value 163 is registered based on the material of the tool. An evaluation index 164 is calculated using the evaluation value 163.

In this way, the cutting system can present machining conditions for the tool in use using environmental load as an evaluation index, taking into account power consumption and recyclability of the cutting tool. Since machining conditions with low environmental impact are presented for each cutting tool, by referring to the conditions, it is possible to execute a cutting process that consumes less power and takes into account resource circulation.

Note that the tool information, work material information, and machining condition information of the evaluation tool were input, and the matching conditions were searched from the database 24 to extract the power consumption. May be specified.

In addition, actual machining is performed using the registered cutting tool on the target machining equipment, the power consumption is measured, and the machining tool information, workpiece material information, machining conditions, and power consumption are linked and stored in the database. An example of registration was shown.

On the other hand, the power consumption of the target processing equipment is estimated (converted ) If possible, the database may be constructed by registering power consumption measurement data measured by another processing device in the database.

Further, if the power consumption of the target processing device can be estimated by simulation, it is also possible to register the power consumption obtained by simulation in the database.

Note that the present invention is not limited to the several embodiments described above, and includes various modifications. The above-mentioned embodiments have been described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to add, delete, or replace other configurations with respect to the configuration of each embodiment.

1... Processing device, 2... Cutting tool, 3... Main spindle, 4... Work material, 5... Table, 6... Main spindle motor, 7... Feed axis motor, 8... Servo amplifier, 9... NC device, 10... Cutting oil supply Device, 11...Temperature adjustment device, 12...Air supply device, 13...Switching board, 14...Clamp current sensor, 20...Cutting system, 21...Measuring section, 22...Cutting system main body, 23...Display section, 24...Database , 31... Calculation section, 32... Storage section, 33... Communication section, 34... Work material information storage area, 35... Tool information storage area, 36... Machining condition information storage area, 37... Measurement signal storage area, 38... Calculation Power consumption storage area, 39...Power measurement program, 40...Power consumption calculation program, 41...Work material/processing conditions/power consumption cooperation program, 42...Evaluation tool power consumption extraction program, 43...Improved processing conditions power consumption calculation program, 44... assumed data processing section, 45... data cooperation processing section, 46... evaluation tool power consumption extraction section, 47... power consumption calculation section, 48... input section, 101... operation screen, 102... Work material information input area, 103...Tool information/processing condition input area, 104...Operation area, 150...Display screen for displaying power consumption calculation results, 160...Another display screen for displaying power consumption calculation results.

Claims (9)

A cutting system that sets cutting information in a processing device that performs cutting on a workpiece,
a power measurement unit that measures power of the processing device and ancillary equipment of the processing device;
a measurement data processing unit that calculates power consumption based on power data measured by the power measurement unit;
a database that registers work material information of the work material, tool information of the cutting tool, machining condition information, and the power consumption amount in the processing device that measured the power consumption amount;
an input unit for inputting the tool information, the machining condition information, and the work material information of the cutting tool to be evaluated (hereinafter referred to as the evaluation cutting tool);
an evaluation tool power consumption extraction unit that extracts from the database the power consumption under conditions that match the tool information, the machining condition information, and the workpiece information of the input evaluation cutting tool;
Based on the work material information of the work material to be cut with the evaluation cutting tool, extract candidates that match the work material information registered in the database, and correspond to the extracted candidates. A candidate power consumption amount is calculated from the power consumption amount per unit volume to be used and the extracted work material information of the candidate, and the candidate power consumption amount is calculated from the power consumption amount per unit volume of a candidate power consumption amount calculation unit that selects the plurality of candidate power consumption amounts in order of candidate power consumption amounts;
The power consumption extracted by the evaluation tool power consumption extraction section, the tool information linked thereto, the machining condition information, and the plurality of candidate power consumptions selected by the candidate power consumption calculation section. A cutting system comprising a display device that displays a quantity, the tool information, and the machining condition information linked thereto. The cutting system according to claim 1,
The candidate power consumption amount in the candidate power consumption calculation unit is
The evaluation cutting tool is characterized in that it is determined by multiplying the removed volume removed by cutting from the work material cut by the evaluation cutting tool by the power consumption per unit volume of the candidate extracted from the database. Cutting system. The cutting system according to claim 1,
In the database, in addition to the cutting tool used in the target processing device, the power consumption is measured using different types of cutting tools, the tool information, the processing condition information, A cutting system characterized in that the work material information and the power consumption are registered in association with each other. The cutting system according to claim 1,
A cutting system characterized in that the tool information includes tool material, tool type, tool diameter, and number of teeth. The cutting system according to claim 1,
A cutting system characterized in that the machining condition information includes rotation speed, feed rate, radial depth of cut, axial depth of cut, and whether or not cutting oil is used. The cutting system according to claim 1,
A cutting system characterized in that the work material information includes a material of the work material, a processed shape, and a volume removed by cutting. The cutting system according to claim 1,
The display screen of the display device includes at least the following:
an information input section for the work material information, the tool information, and the machining condition information;
a measurement input unit that instructs to start and stop measuring the power consumption;
a calculation instruction unit that executes a process of calculating the power consumption;
a power display unit that displays the calculated power consumption;
a registration instruction unit that registers the inputted work material information, tool information, and machining condition information and the calculated power consumption in the database;
A cutting system comprising: the evaluation tool power consumption extraction section; and an evaluation/improvement processing instruction section that instructs the candidate power consumption calculation section to execute processing. The cutting system according to claim 1,
The display screen of the display device includes at least the following:
The power consumption extracted by the evaluation tool power consumption extraction section, the tool information linked thereto, the machining condition information, and the plurality of candidate power consumption amounts calculated by the candidate power consumption calculation section. , and the tool information and machining condition information linked thereto are displayed in a table format. The cutting system according to claim 8,
The display screen of the display device is characterized in that an evaluation value regarding the power consumption and the recyclability of the material of the cutting tool, and an evaluation index item obtained by multiplying this by the power consumption are additionally displayed. cutting system.

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