Cutting Processing System

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

[Technical Field]

[0001] The present invention relates to a cutting system that sets cutting information for a processing device that cuts metal materials, and more particularly to a cutting system that presents cutting information that can reduce power consumption. [Background technology]

[0002] Processing equipment used in cutting metal materials, such as NC processing equipment (machine tools such as machining centers and turning centers), is generally equipped with a spindle temperature adjustment device, a cutting oil supply device, and an air supply device as auxiliary equipment.

[0003] To ensure machining accuracy and stable operation of the processing equipment, the ancillary equipment must be kept running at all times. Meanwhile, the power consumption during standby is mainly due to the operation of the ancillary equipment and control devices (servo amplifiers, etc.) of the processing equipment, which are always running. Meanwhile, the power consumption per unit time during cutting operations of processing equipment that processes metal materials (hereinafter referred to as workpieces) is even greater than the power consumption during standby.

[0004] As a result, an increase in power consumption will result in an increase in CO2 emissions from the power plant. For this reason, there is a demand for processing devices that can reduce power consumption. For example, Japanese Patent Application Laid-Open No. 2019-82894 (Patent Document 1) proposes a processing condition adjustment device with the following configuration.

[0005] Patent Document 1 introduces a machine learning device that constructs a learning model that takes into account power consumption and cycle time based on status data such as the machining conditions and cycle time for each tool used in machining on the manufacturing machine, and the machining condition adjustment device uses the learning model, which is the learning result of the machine learning device, to adjust the machining conditions based on the status data obtained from the manufacturing machine, and is configured to evaluate the adjustment of the machining conditions using the power consumption and cycle time resulting from executing machining operations based on the adjusted machining conditions as judgment data. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2019-82894 Summary of the Invention [Problem to be solved by the invention]

[0007] As in Patent Document 1, it is effective to reduce the overall power consumption of multiple manufacturing machines by setting processing conditions with low power consumption to match manufacturing machines with long cycle times. However, because the method in Patent Document 1 is a technology for optimizing the current operating status, it does not take into consideration further reducing power consumption and reducing CO2 emissions. Against this background, there is a demand to reduce the power consumption of this type of processing equipment as much as possible to reduce CO2 emissions.

[0008] Therefore, an object of the present invention is to provide a cutting system that can reduce power consumption by appropriately setting cutting information in a processing device, thereby reducing CO2 emissions. [Means for solving the problem]

[0009] In the present invention, A cutting processing system for setting cutting processing information in a processing device that performs cutting processing on a workpiece, a power measurement unit for measuring the power of the processing device and auxiliary equipment of the processing device; a measurement data processing unit that calculates the amount of power consumption based on the power data measured by the power measurement unit; a database that associates and registers information about a workpiece, information about a cutting tool, information about processing conditions, and power consumption of the processing device whose power consumption has been measured; an input unit for inputting tool information, machining condition information, and workpiece 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, from the database, power consumption under conditions that match the input tool information, machining condition information, and workpiece information of the evaluation cutting tool; a candidate power consumption calculation unit that extracts candidates that match material information of the workpiece registered in the database based on workpiece information of the workpiece to be cut by the evaluation cutting tool, calculates candidate power consumption amounts from the power consumption per unit volume corresponding to the extracted candidates and machining shape information of the workpiece of the extracted candidates, and selects multiple candidate power consumption amounts in order of candidate power consumption amounts that are smaller than the power consumption amount extracted by the evaluation tool power consumption extraction unit; The power consumption amount extracted by the evaluation tool power consumption amount extraction unit, and the tool information and machining condition information linked thereto are provided with a display device that displays the candidate power consumption amount selected by the candidate power consumption amount calculation unit, and the tool information and machining condition information linked thereto. It is characterized by: [Effects of the Invention]

[0010] According to the present invention, recommended cutting processing information that consumes less power for the cutting tool currently in use is presented, and by changing the cutting processing information based on the presented recommended cutting processing information, the power consumption of the processing device can be reduced as much as possible, and as a result, CO2 emissions can be reduced. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a configuration diagram for explaining the configuration of a cutting processing system. [Figure 2] FIG. 2 is a configuration diagram for explaining the detailed configuration of the cutting processing system. [Figure 3] FIG. 10 is a flowchart illustrating a process flow for constructing a database. [Figure 4] FIG. 2 is an explanatory diagram illustrating an example of registration information regarding workpieces and cutting tools registered in a database. [Figure 5] FIG. 10 is an explanatory diagram illustrating an example of registered information regarding processing conditions and power consumption amounts registered in a database. [Figure 6] FIG. 10 is a flowchart illustrating a control flow for calculating the amount of power consumption related to the cutting tool to be evaluated and for calculating the amount of power consumption using a database. [Figure 7] FIG. 10 is a diagram showing an example of a display screen for explaining input buttons for cutting processing information and operation buttons on the display device. [Figure 8] FIG. 10 is an explanatory diagram illustrating a first calculation result of the amount of power consumption of the evaluated cutting tool and the amount of power consumption in cutting processing information registered in the database. [Figure 9] FIG. 10 is an explanatory diagram illustrating a measurement result of power consumption based on selected cutting processing information. [Figure 10] FIG. 10 is an explanatory diagram illustrating a second calculation result of the amount of power consumption of the evaluated cutting tool and the amount of power consumption in the cutting processing information registered in the database. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings, and in this embodiment, a processing device for cutting a workpiece will be described with reference to the accompanying drawings. In all the drawings for explaining the embodiment, parts having the same functions will be given the same reference numerals, and repeated explanations will be omitted as a general rule.

[0013] However, the present invention should not be construed as being limited to the description of the embodiments shown below. Those skilled in the art will readily understand that the specific configurations can be modified within the scope of the concept and spirit of the present invention.

[0014] In this embodiment, in a cutting processing system that sets cutting processing information for a processing device, a database is constructed by linking power consumption, workpiece information, tool information, and processing condition information so that they are linked together, and then power consumption that matches the input workpiece information, tool information, and processing condition information is extracted from the database, and candidates that match the workpiece information registered in the database are extracted based on the workpiece information, and a candidate power consumption for the extracted candidate is calculated using the power consumption per unit volume of the extracted candidate and the workpiece information of the extracted candidate, and the power consumption extracted from the database, multiple recommended candidate power consumptions that are less than this power consumption amount, and the tool information and processing condition information linked to them are displayed.

[0015] By changing the cutting processing information based on the recommended cutting processing information, it is possible to reduce the amount of power consumed by the processing equipment as much as possible, which in turn leads to a reduction in CO2 emissions. Furthermore, by displaying the power consumption amounts extracted from the database together with the associated tool information and processing condition information, it is easy to compare them with the proposed power consumption amounts.

[0016] [Outline of the cutting system including the processing equipment] Fig. 1 is a diagram showing a schematic and exemplary configuration of a cutting system according to the present 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 or machining center that can be controlled by an NC (Numerical Control) program.

[0017] In the processing device 1, a cutting tool 2 is fixed to a spindle 3, the spindle 3 is rotated by a spindle motor 6, and a workpiece 4 is fixed to a table 5, and the cutting tool 2 and the workpiece 4 are moved relative to each other to process the workpiece 4 into a desired shape.

[0018] 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, which stores an NC program. This causes the spindle motor 6 to rotate at the commanded rotation speed. Similarly, the servo amplifier 8 controls the current value input to the feed axis motor 7 based on a command from the NC device 9. This causes the feed axis motor 7 to rotate at the commanded feed speed. The cutting tool 2 is a one-piece (solid) or indexable end mill, etc.

[0019] 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 auxiliary 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 a switchboard 13.

[0020] The cutting oil supply device 10 is a device that discharges cutting oil (not shown) onto the cutting processing area of ​​the cutting tool 2 and workpiece 4 during cutting, and cools the cutting tool 2, removes chips, etc. The temperature adjustment device 11 is a device that adjusts (mainly cools) the temperature of the spindle 3. The air supply device 12 is a device that detaches the cutting tool 2 from the spindle 3, blows air to remove chips, etc.

[0021] The cutting system 20 comprises a measurement unit 21, a cutting system main body 22, a display device 23, and a database 24. The measurement unit 21 is composed of a power meter and the like, and measures power by installing a clamp current sensor 14 on the power supply cable and connecting a voltage measurement cable (not shown) to the switchboard.

[0022] Clamp current sensor 14a measures the combined power consumption of processing device 1, cutting oil supply device 10, and temperature adjustment device 11, while clamp current sensor 14b measures the power consumption of air supply device 12. Note that clamp current sensor 14a measures the combined power consumption of processing device 1, cutting oil supply device 10, and temperature adjustment device 11, but by comparing the operating status of processing device 1, cutting oil supply device 10, and temperature adjustment device 11 with the measurement data, it is possible to link the measurement data for each device.

[0023] The cutting system main body 22 links the amount of power consumption measured by the measuring unit 21 with information on the workpiece material, tool information, and machining condition information (such as rotation speed and feed rate, specifically as shown in FIG. 5) at that time and registers it in the database 24. By repeating this process, the database 24 can be constructed and expanded. This registered information on the workpiece material, tool information, and machining condition information is treated as "cutting information."

[0024] Then, the amount of power consumption can be calculated using this database 24. First, by inputting at least information on the workpiece, including the material and machining shape of the workpiece, tool information, and machining condition information, the amount of power consumption that matches the input information (cutting processing information) is extracted from the data registered in the database 24.

[0025] Next, based on the input workpiece information, candidates that match the material information of the input workpiece registered in the database are extracted, and the power consumption per unit volume of the extracted candidates and the processing shape information of the input workpiece are used to determine the candidate power consumption of the extracted candidates, and multiple candidate power consumptions and cutting processing information linked to them (recommended cutting processing information) are selected in order of smallest candidate power consumption.

[0026] The proposed power consumption amounts and the associated cutting processing information are then displayed as screen information on the display unit 23. From the displayed cutting processing information, appropriate cutting processing information that can reduce power consumption is selected and set, and the processing device executes the cutting process accordingly. This reduces power consumption and ultimately reduces CO2 emissions.

[0027] [Detailed explanation of cutting processing system] FIG. 2 is a diagram showing a detailed configuration of the cutting system shown in FIG. 1 in a schematic and exemplary manner.

[0028] The cutting system main body 22 can be configured on a general-purpose computer. Its hardware configuration includes a calculation unit 31 configured with a CPU (Central Processing Unit), RAM (Random Access Memory), etc., a storage unit 32 configured with a ROM (Read Only Memory), HDD (Hard Disk Drive), SSD (Solid State Drive) using flash memory, etc., an information input unit 48 configured with input devices such as a keyboard and a mouse, and a communication unit 33 configured with a NIC (Network Interface Card), input / output interface devices, etc.

[0029] 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, or a dedicated cable or a USB (Universal Serial Bus) cable. The database 24 is configured with a storage medium such as an HDD, and the display device 23 is a display device such as an LCD (Liquid Crystal Display) or an organic EL display.

[0030] The calculation unit 31 has a measurement data processing unit 44, a data linking processing unit 45, an evaluation tool power consumption extraction unit 46, and a power consumption calculation unit 47. In the calculation unit 31, the power measurement program 39, the power consumption calculation program 40, the workpiece / cutting tool / machining condition / power consumption linking program 41, the evaluation tool power consumption extraction program 42, and the improved machining condition power consumption calculation program 43, which are stored in the memory unit 32, are loaded into RAM and executed by the CPU, thereby realizing each functional unit.

[0031] The measurement data processing unit 44 functions by executing the power measurement program 39, the data linkage processing unit 45 functions by executing the workpiece / 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 functions by executing the power consumption calculation program 40 and the improved processing condition power consumption calculation program 43.

[0032] The memory unit 32 includes a workpiece information memory area 34, a tool information memory area 35, a machining condition information memory area 36, ​​a measurement signal memory area 37, and a calculated power consumption memory area 38. It also includes memory areas for storing a power measurement program 39, a power consumption calculation program 40, a workpiece / cutting tool / machining condition / power consumption linking program 41, an evaluation tool power consumption extraction program 42, and an improved machining condition power consumption calculation program 43.

[0033] [Database Description] Next, the construction of the database 24 in which workpiece information, tool information, machining condition information, and power consumption are linked will be described with reference to the flowchart in Fig. 3. Note that Figs. 1 and 2 will also be referenced as necessary.

[0034] The database 24 is constructed by operating the operation buttons 141, 142, 143, and 145 displayed in the operation area 104 on the screen of the display device 23 shown in FIG. 7 according to the operation procedure.

[0035] <Step S01> In step S01, the processing device 1 processes the workpiece 4 using the cutting tool 2 registered in the database 24, and the power consumed during the cutting process is measured. The amount of power consumed is measured by the measurement unit 21, and the measurement data processing unit 44, which executes the power measurement program 39, stores the measurement data from the start to the end of processing the workpiece 4 in the measurement signal storage area 37 via the communication unit 33. The measured amount of power consumed is measurement data including the processing device 1 and the ancillary equipment 10-12.

[0036] <Step S02> In step S02, the amount of power consumption when using the cutting tool 2 registered in the database 24 is calculated. The amount of power consumption is calculated by the power consumption calculation unit 47 executing the power consumption calculation program 40, by multiplying the average value of the power data measured from the start to the end of cutting the workpiece by the time required for cutting. Also, the amount of 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 together with the processing time.

[0037] The power consumption per unit volume reflects the tool information and machining condition information at the time the power consumption is calculated, and if the tool information and machining condition information differ, the power consumption per unit volume will also differ. Therefore, when calculating the candidate power consumption described below, if this power consumption per unit volume is used, it is possible to calculate a candidate power consumption that indirectly reflects the tool information and machining condition information.

[0038] The amount of power consumption is obtained by integrating the power data from the start to the end of processing over time, and the amount of power consumption calculated by multiplying the total value of the power data by the sampling period can also be used.

[0039] <Step S03> In step S03, information about the workpiece when the power consumption was measured in step S02 is input. At least the material of the workpiece, its machining shape, and the removal volume (see FIG. 4) are input as workpiece information in the information input unit 48, and these are stored in the workpiece information storage area 34. The removal volume is calculated from the machining shape (W, D, H). "W" is the width, "D" is the depth, and "H" is the height. The removal volume may be input directly or calculated from the machining shape.

[0040] <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 unit 48 and stored in the tool information storage area 35.

[0041] <Step S05> In step S05, the machining condition information at the time of measuring the power is input. At least the rotation speed, feed rate, cutting rate, feed rate per blade, depth of cut (radial direction, axial direction), and whether or not cutting oil is used (see FIG. 5) are input as the machining condition information by the information input unit 48 and stored in the machining condition storage area 36.

[0042] <Step S06> In step S06, the workpiece / tool / processing condition / power consumption linking program 41 links the calculated power consumption and processing time with the input workpiece information, tool information, and processing condition information in the data linking processing unit 45, and registers them in the database 24.

[0043] In addition to the workpieces to be machined by the target machining device, the cutting tools to be used, and the machining conditions, the database 24 can also measure and register the power consumption of different types of cutting tools and machining conditions.

[0044] The different types of cutting tools include, for example, indexable cutting tools with square inserts and round inserts, and cutting tools made of different insert materials such as cemented carbide and ceramics, and these are registered in the database 24. In addition, there are various machining conditions, such as whether or not cutting oil is used, and these are also registered in the database 24.

[0045] Therefore, it is possible to register various work materials, cutting tools, processing conditions, power consumption, etc. in the database. By using this registered information, it is possible to present appropriate cutting tools and processing conditions with low power consumption.

[0046] 4 and 5 show examples of registered information in the database, which are divided into two parts.

[0047] 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.

[0048] The volume 167 of the workpiece information 161 is the volume of the workpiece material removed by cutting, calculated from the shape information when the information was registered in the database 24. The cutting speed 168 and the feed 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 when the information was registered in the database 24.

[0049] Furthermore, machining time 164 is the machining time when power consumption 165 is measured. Power consumption / unit volume 166 is the power consumption per unit volume obtained by dividing power consumption 165 by volume 167 removed from workpiece 161. As can be seen from registration numbers #2 to #4 in Figs. 4 and 5, this power consumption per unit volume varies depending on the tool and machining conditions even for the same removed volume.

[0050] [Explanation of the specific process for displaying cutting processing information] Next, the process of executing a cutting process with a cutting tool to be evaluated for use in cutting (hereinafter referred to as the evaluation tool) and presenting recommended cutting conditions will be described with reference to the flowchart shown in Fig. 6. Note that Figs. 1 and 2 will also be referenced 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 on the screen of the display device 23 shown in Fig. 7.

[0051] Step S11 to Step S13 In step S11, workpiece 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 types of information to be input are the same as those in steps S03, S04, and S05 shown in FIG. 3.

[0052] <Step S14> In step S14, the tool information of the evaluation tool, the machining condition information of the evaluation tool, and the workpiece information input in steps S11 to S13 are used to search the database 24 for cutting processing information (already registered) that matches this cutting processing information, and the corresponding cutting processing information found (cutting processing information is tool information, machining condition information, and workpiece information) and the power consumption amount linked to it are extracted.

[0053] The evaluation tool is a cutting tool used in the cutting process of an actual product and has already been registered in the database 24, so it is possible to extract cutting processing information and power consumption corresponding to the evaluation tool.

[0054] <Step S15> In step S15, candidates registered in database 24 are extracted based on the material of the workpiece information input in step S11 (here, the material (SUS304) shown in FIG. 7). The candidates extracted here are those that match the material information of the workpiece, and multiple candidates are extracted. Then, the candidate power consumption, which is the power consumption of each of the extracted candidates, is calculated.

[0055] The candidate power consumption amounts are recommended power consumption amounts for reducing power consumption. Of course, not all candidates are recommended power consumption amounts, and some candidates have power consumption amounts greater than the power consumption amount calculated in step S14.

[0056] The candidate power consumption amount is obtained by multiplying the power consumption amount per unit volume (power consumption amount / unit volume) of the extracted candidate registered in the database 24 by the volume of the workpiece removed by cutting that has been input. The volume of the workpiece removed may be calculated based on the machined shape or may be input directly.

[0057] Then, for all the extracted candidates, the candidate power consumption is calculated for each of them 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 to be registered in the database is calculated. Therefore, when calculating the candidate power consumption, if the power consumption per unit volume linked to the tool information and machining condition information is used, it is possible to calculate the candidate power consumption that indirectly reflects the tool information and machining condition information.

[0058] As another method for determining the candidate power consumption, it is also possible to calculate the machining time from the axial cutting depth and diametric cutting depth of the machining conditions registered in the database 24, as well as the feed rate and the machining shape of the workpiece, and then calculate the candidate power consumption based on the ratio of the machining time of the registered power consumption to the calculated machining time.

[0059] <Step S16> In step S16, among the candidate power consumption amounts calculated in step S15 for the plurality of workpieces of the same material, a plurality of candidates corresponding to the same workpiece are selected and extracted in order of power consumption amount less than the power consumption amount calculated in step S14. Note that the number of candidates to be extracted is arbitrary, and it is possible to set the required number of candidates. In this embodiment, three candidates (#1 to #3 in FIG. 8) are extracted.

[0060] <Step S17> In step S17, the power consumption and cutting processing information of the evaluation tool extracted in step S14, the candidate power consumption of the multiple candidates extracted in step S16, and the cutting processing information linked to them are presented (displayed) on the display device 23.

[0061] Then, 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 device as much as possible, and as a result, it is possible to reduce CO2 emissions. Note that if there is no candidate power consumption amount less than the power consumption amount extracted in step S14, the tool information and processing condition information extracted in step S14 will be recommended. The information displayed on the display device 23 will be described with reference to Figures 8 and 10. Figures 8 and 10 show an example of displaying tool information and machining condition information from among the cutting processing information.

[0062] [Operation screen explanation] Next, a description will be given of the operation screen displayed on the display device 23 of the cutting system 20. Note that this operation screen is an example, and other operation screens may also be used.

[0063] Fig. 7 shows an operation screen (GUI / Graphical User Interface) of the display device 23 in the cutting system 20 shown in Fig. 1. This screen is an operation screen for inputting workpiece information, tool information, and machining condition information, and for operating the cutting system 20.

[0064] The operation screen 101 is composed of a workpiece information input area 102 , a tool information / machining condition information input area 103 , and an operation area 104 .

[0065] In the workpiece information input area 102, workpiece information is input to a material type input section 111 and machining shape input sections 112a to 112c.

[0066] In the tool specification / machining condition input area 103, tool information is input into a tool type input section 121, a tool material input section 122, a tool structure input section 123, a tip input section 124, a tool diameter input section 125, and a tool number of cutting edges input section 126. Here, the tool type input section 121, the tool material input section 122, the tool structure input section 123, and the tip input section 124 are configured to be selected using a pull-down menu.

[0067] In the tool information / cutting condition input area 103, the cutting conditions are input to a rotation speed input section 127, a feed rate input section 128, a diameter cutting depth input section 129, an axial cutting depth input section 130, and a cutting oil use / non-use input section 131. The use or non-use of cutting oil is selected using a pull-down menu.

[0068] 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 area 37.

[0069] Furthermore, by pressing the power consumption calculation button 143, the power consumption calculation program 40 is executed, the power consumption is calculated, and the calculated power consumption is displayed in the power consumption display section 144. Furthermore, by pressing the database registration button 145, the workpiece / cutting tool / cutting condition / power consumption linking program 41 is executed, and the input workpiece information, tool information, cutting condition information, and calculated power consumption are registered in the database 24.

[0070] Pressing the Evaluate / Improve button 146 executes the program 41 for extracting the power consumption of the evaluation tool and the program 42 for calculating the power consumption of the improved machining conditions. The program extracts the power consumption of the evaluation tool that corresponds to the input workpiece information, tool information, and machining condition information. Furthermore, the program extracts the tool information and machining condition information registered in the database based on the input material information of the workpiece, and calculates candidate power consumption from the removed volume of the workpiece and the power consumption per unit volume. Finally, multiple candidate power consumptions and the corresponding tool information and machining condition information are displayed.

[0071] Fig. 8 is an example of a display screen 150 that displays the power consumption of the evaluation tool, the candidate power consumption, and the cutting processing information linked to these in the database 24. This display screen 150 is switched from the operation screen shown in Fig. 7, and at least a power consumption calculation result 151 is displayed on the display screen 150.

[0072] The power consumption calculation result 151 is the result of extracting tool information and machining condition information registered in the database based on the input workpiece material and machining shape, calculating candidate power consumption from the removed volume of the workpiece and the power consumption per unit volume, and then extracting the three candidates in order of lowest power consumption. In addition, to make comparison easier, the tool information, machining condition information, and power consumption when the evaluation tool was used are also displayed.

[0073] As shown in Figure 8, this information is displayed in a table format with the following items set horizontally: (1) tool information, (2) machining condition information, (3) power consumption, and (4) ratio with the evaluated tool, and the following items set vertically: (1) cutting processing information of the evaluated tool, and (2) multiple extracted recommended cutting processing information.

[0074] 8, "#0" indicates the tool information, machining condition information, power consumption 152, and ratio 153 to the evaluated tool regarding the evaluated tool, and "#1" to "#3" indicate the tool information, machining condition information, candidate power consumption 152, and ratio 153 to the evaluated tool extracted to reduce power consumption. The ratio 153 to the evaluated tool is calculated based on the power consumption 152 of the evaluated tool.

[0075] In the examples ("#1" to "#3") shown in Figure 8, candidate power consumption figures that are lower than the evaluation tool ("#0"), along with the corresponding tool information and machining condition information, are presented. By referring to the tool information and machining condition information displayed here and changing the tool information and machining condition information for the current cutting process, it is possible to implement a cutting process with lower power consumption and reduce CO2 emissions.

[0076] In Figure 8, the candidate power consumption is small for the ceramic tool "#1," but ceramic tools are difficult to recycle. On the other hand, in the other examples "#2" and "#3," the cutting tools are cemented carbide tools. Since there is a recycling environment for cemented carbide tools, from the perspective of resource circulation, cemented carbide tools have a smaller environmental impact than ceramic tools.

[0077] In order to display such information, in addition to the amount of power consumption, tool information, and machining condition information, tool material recycling (resource circulation) information 154 can be displayed on the screen 150 as information for determining the environmental load. Note that if recycling technology advances in the future, the content of the tool material recycling (resource circulation) information 154 can be changed.

[0078] Figure 9 shows an example of the measurement results of the amount of power consumed when removing the same volume from the workpiece by cutting using different tools.

[0079] Fig. 9 shows the results of removing a volume of 20 cm using the four types of cutting tools (see "Tool Information" in #1, #2, #3, and #4) in the database 24 shown in Figs. 4 and 5. 3 9 corresponds to the cutting tools in the database 24 of FIG. 4 and FIG. 5. Hereinafter, #1, #2, #3, #4 will be referred to as "tool #1," "tool #2," "tool #3," and "tool #4."

[0080] Figure 9 shows the power consumption of the spindle motor and feed axis motor, which are directly involved in cutting processing, separately from the power consumption of other ancillary equipment and control devices for the processing equipment (hereinafter referred to as the power consumption of ancillary equipment).

[0081] In Figure 9, the power consumption of tool #1 is high. This is because tool #1 has a small tool diameter and a small radial depth of cut, which results in a longer machining time than the other tools, and as a result, the power consumption of the ancillary equipment also increases. Also, the power consumption of tool #3 is lower than that of tool #2 because tool #3 has a larger tool diameter and a larger radial depth of cut than tool #2, which results in a shorter machining time, and as a result, the power consumption of the ancillary equipment also decreases.

[0082] Furthermore, the reason why tool #4 consumes less power than tool #3 is that tool #3 is made of carbide, while tool #4 is made of ceramics, and since it is a dry machining process that does not use cutting oil, the coolant pump, which is an ancillary equipment, is not running.

[0083] Furthermore, when comparing the power consumption of the spindle and feed axis motors, tool #4 consumes more power than tools #2 and #3. This is because tool #4's rotation speed is about 10 times faster than tools #2 and #3, resulting in greater power consumption by the spindle motor.

[0084] However, the #4 tool consumes less power than the other tools due to the shorter machining time and the significant reduction in power consumption achieved by not operating the coolant pump during dry machining, despite the increased power consumption of the spindle and feed axis motors.

[0085] Therefore, in order to reduce the power consumption of the evaluation tool, it is effective to shorten the machining time and not use cutting oil and not operate the coolant pump. Note that although an example of whether or not coolant is used is shown here, controlling the operation of the coolant pump so that the required coolant discharge volume (discharge pressure) is adjusted and supplied for each tool (for example, discharge volume: high, medium, low) is also effective in reducing power consumption.

[0086] In this way, the cutting system according to this embodiment can present tool information and machining condition information that consumes less power for the tool currently in use. Since the machining condition information that consumes less power is presented for each cutting tool, a cutting process that consumes less power can be executed by setting the cutting condition information based on the information.

[0087] Furthermore, because machining conditions with low power consumption shorten machining time, applying them to the entire cutting process results in a cutting process with a shorter total machining time. This makes it possible to produce the same quantity in a shorter time (short period), and by linking it with production plans, it is possible to increase the downtime of the processing equipment, further reducing power consumption and CO2 emissions.

[0088] FIG. 10 shows an example of another display screen 160 that displays the power consumption of the evaluation tool, the cutting information registered in the database, and the extraction results of the candidate power consumption.

[0089] The display screen 160 is configured with a power consumption calculation result 161. The example shown in Fig. 10 is obtained by adding a recyclability evaluation value 163 and an evaluation index 164 to the example shown in Fig. 8.

[0090] The recyclability evaluation value 163 indicates the recyclability of the tool material, with a small evaluation value for cemented carbide, which has good recyclability, and a large evaluation value for ceramics, which is difficult to recycle. The evaluation index 164 is the product of the power consumption 162 and the recyclability 163, and is an index that combines the power consumption and the recyclability.

[0091] In the power consumption calculation results 161, the tools are displayed in ascending order of evaluation index 164, starting with #1. The ratio 165 to the evaluation tool is based on the evaluation index of the evaluation tool. Tool #3 has the smallest power consumption 162, but because the tool material is ceramic and difficult to recycle, it has a high recyclability evaluation value and a higher evaluation index 164 than tools #1 and #2. Note that the recyclability evaluation value can be changed in the future if recycling technology evolves.

[0092] 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 the power consumption calculation program 43 for improved processing conditions is executed to calculate the power consumption, the evaluation index 164 is calculated using the recyclability evaluation value 163.

[0093] In this way, the cutting system can present cutting conditions for the tools in use using an evaluation index that considers the amount of power consumption and the environmental impact of the cutting tool, taking into account the recyclability of the cutting tool. Because the cutting conditions with the lowest environmental impact are presented for each cutting tool, by referring to these conditions, it is possible to carry out a cutting process that consumes less power and takes resource recycling into consideration.

[0094] The tool information, workpiece information, and machining condition information of the evaluation tool were input, and matching conditions were searched for in the database 24 to extract the power consumption amount, but the evaluation tool may also be specified by the number registered in the database 24.

[0095] In addition, an example was given in which actual processing was performed using the cutting tool to be registered on the target processing equipment, the amount of power consumption was measured, and the information on the tool used for processing, information on the workpiece material, processing conditions, and the amount of power consumption were linked and registered in the database.

[0096] On the other hand, if the amount of power consumption of the target processing device can be estimated (converted) from power consumption measurement data obtained when the same workpiece is processed using a processing device other than the target processing device 1 with the same tools and processing conditions, the power consumption measurement data measured using the other processing device can be registered in the database to construct the database.

[0097] Furthermore, if the power consumption of the target processing device can be estimated by simulation, the power consumption obtained by the simulation can be registered in the database.

[0098] The present invention is not limited to the above-described embodiments, but includes various modifications. The above-described embodiments have been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to those including all of the described configurations. Furthermore, it is possible to replace 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. [Explanation of symbols]

[0099] 1...machining device, 2...cutting tool, 3...spindle, 4...workpiece, 5...table, 6...spindle motor, 7...feed axis motor, 8...servo amplifier, 9...NC device, 10...cutting oil supply device, 11...temperature control device, 12...air supply device, 13...distribution board, 14...clamp current sensor, 20...cutting processing system, 21...measurement unit, 22...cutting processing system main body, 23...display unit, 24...database, 31...calculation unit, 32...memory unit, 33...communication unit, 34...workpiece information storage area, 35...tool information storage area, 36...cutting condition information storage area, 37...measurement signal storage area, 38...calculated power consumption storage area, 3 9...power measurement program, 40...power consumption calculation program, 41...workpiece / cutting condition / power consumption linking program, 42...evaluation tool power consumption extraction program, 43...power consumption calculation program for improved machining conditions, 44...estimated data processing unit, 45...data linking processing unit, 46...evaluation tool power consumption extraction unit, 47...power consumption calculation unit, 48...input unit, 101...operation screen, 102...workpiece information input area, 103...tool information / cutting 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

1. A cutting processing system for setting cutting processing information in a processing device that performs cutting processing on a workpiece, a power measurement unit that measures the power of the processing device and auxiliary equipment of the processing device; a measurement data processing unit that calculates the amount of power consumption based on the power data measured by the power measurement unit; a database in which workpiece information of the workpiece, tool information of the cutting tool, machining condition information, and the amount of power consumption of the machining device for which the amount of power consumption has been measured are linked and registered; an input unit for inputting the tool information of the cutting tool to be evaluated (hereinafter referred to as the evaluation cutting tool), the machining condition information, and the workpiece information; an evaluation tool power consumption extraction unit that extracts, from the database, the power consumption under conditions that match the input tool information, the machining condition information, and the workpiece information of the evaluation cutting tool; a candidate power consumption calculation unit that extracts candidates that match the workpiece information registered in the database based on the workpiece information of the workpiece to be cut by the evaluation cutting tool, calculates candidate power consumption amounts from the power consumption per unit volume corresponding to the extracted candidates and the workpiece information of the extracted candidates, and selects a plurality of candidate power consumption amounts in order of the candidate power consumption amount that is smaller than the power consumption amount extracted by the evaluation tool power consumption extraction unit; a display device that displays the power consumption extracted by the evaluation tool power consumption extraction unit, the tool information and the machining condition information linked thereto, and the plurality of candidate power consumptions selected by the candidate power consumption calculation unit, and the tool information and the machining condition information linked thereto. A cutting processing system characterized by:

2. The cutting system according to claim 1, The candidate power consumption amount in the candidate power consumption amount calculation unit is The power consumption per unit volume of the candidate extracted from the database is calculated by multiplying the volume removed by cutting from the workpiece by the evaluation cutting tool. A cutting processing system characterized by:

3. The cutting system according to claim 1, In addition to the cutting tool used in the target processing device, the power consumption is measured using other different types of cutting tools, and the tool information, processing condition information, workpiece information, and the power consumption are linked and registered in the database. A cutting processing system characterized by:

4. The cutting system according to claim 1, The tool information includes the tool material, the tool type, the tool diameter, and the number of blades. A cutting processing system characterized by:

5. The cutting system according to claim 1, The processing condition information includes the number of revolutions, the feed rate, the diameter cutting depth, the axial cutting depth, and whether or not cutting oil is used. A cutting processing system characterized by:

6. The cutting system according to claim 1, The workpiece information includes the material of the workpiece, the machining shape, and the volume removed by cutting. A cutting processing system characterized by:

7. The cutting system according to claim 1, The display screen of the display device has at least an information input unit for the workpiece information, the tool information, and the machining condition information; a measurement input unit that instructs the start and stop of the measurement of the power consumption amount; a calculation instruction unit that executes a process for calculating the power consumption amount; a power display unit that displays the calculated power consumption amount; a registration instruction unit that registers the input workpiece information, the tool information, and the machining condition information, and the calculated power consumption amount, in the database; an evaluation / improvement processing instruction unit that instructs the execution of processing by the evaluation tool power consumption amount extraction unit and the candidate power consumption amount calculation unit; A cutting processing system characterized by:

8. The cutting system according to claim 1, The display screen of the display device has at least The power consumption amount extracted by the evaluation tool power consumption amount extraction unit, the tool information and the machining condition information linked thereto, and the plurality of candidate power consumption amounts calculated by the candidate power consumption amount calculation unit, the tool information and the machining condition information linked thereto are displayed in a table format. A cutting processing system characterized by:

9. The cutting system according to claim 8, The display screen of the display device additionally displays the power consumption amount, an evaluation value relating to the recyclability of the material of the cutting tool, and an evaluation index item obtained by multiplying the power consumption amount. A cutting processing system characterized by:

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