WO2024100693A1 - 処理装置、処理方法、システムおよびコンピュータプログラム - Google Patents

処理装置、処理方法、システムおよびコンピュータプログラム Download PDF

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Publication number
WO2024100693A1
WO2024100693A1 PCT/JP2022/041290 JP2022041290W WO2024100693A1 WO 2024100693 A1 WO2024100693 A1 WO 2024100693A1 JP 2022041290 W JP2022041290 W JP 2022041290W WO 2024100693 A1 WO2024100693 A1 WO 2024100693A1
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WO
WIPO (PCT)
Prior art keywords
output value
cutting tool
time
physical quantity
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/041290
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English (en)
French (fr)
Japanese (ja)
Inventor
章宏 豊嶋
雄介 小池
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
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Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to PCT/JP2022/041290 priority Critical patent/WO2024100693A1/ja
Priority to JP2023524658A priority patent/JP7384321B1/ja
Priority to US19/126,273 priority patent/US20260077441A1/en
Priority to JP2024555890A priority patent/JP7632773B2/ja
Priority to CN202380074693.6A priority patent/CN120091888A/zh
Priority to EP23888660.0A priority patent/EP4616995A4/en
Priority to PCT/JP2023/039905 priority patent/WO2024101313A1/ja
Publication of WO2024100693A1 publication Critical patent/WO2024100693A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
    • B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
    • G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by monitoring or safety
    • G05B19/4065—Monitoring tool breakage, life or condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/128—Sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2260/00—Details of constructional elements
    • B23C2260/76—Sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37027—Sensor integrated with tool or machine
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50203—Tool, monitor condition tool

Definitions

  • the present disclosure relates to a processing device, a processing method, a system, and a computer program.
  • Cutting tools i.e., turning tools and lathes
  • Patent Document 1 discloses a cutting tool that includes a sensor and a wireless communication unit. In this cutting tool, information about the cutting tool measured by the sensor is transmitted to the outside by the wireless communication unit.
  • a processing device includes a receiving unit that receives from the cutting tool an output value of a sensor mounted on the cutting tool, a processing unit that calculates a physical quantity related to the cutting tool from the output value received by the receiving unit, and a display unit that displays an image including a graph showing time series data of the physical quantity and a distribution image showing the distribution of the physical quantity.
  • FIG. 1 is a schematic diagram illustrating a configuration of a system according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view showing a schematic diagram of the milling tool shown in FIG.
  • FIG. 3 is a block diagram showing the configuration of a sensor module attached to the milling tool shown in FIG.
  • FIG. 4 is a block diagram showing the configuration of the processing device shown in FIG.
  • FIG. 5 is a diagram showing an example of a display screen displayed on the display device.
  • FIG. 6 is a flowchart showing the operation of the processing device shown in FIG.
  • FIG. 7 is a diagram showing an initial image displayed on the display device.
  • the cutting load i.e., cutting resistance
  • the machining state can be evaluated.
  • an evaluation method for a milling tool having multiple cutting blades, there is a method of confirming the load condition on each blade in any machining section (i.e., any period in the entire machining period), or a method of confirming the tendency of the load condition on each blade for the entire machining.
  • machining section e.g., physical quantities such as the load on the turning tool
  • data from an arbitrary machining section e.g., physical quantities such as the load on the turning tool
  • a distribution image e.g., an image in which the components of the load on the turning tool are plotted in two dimensions.
  • the machining section i.e., the section for identifying the data used to generate one distribution image
  • the present disclosure aims to provide a processing device, processing method, system, and computer program that can easily grasp the state of a cutting tool equipped with a sensor.
  • a processing device includes a receiving unit that receives from the cutting tool an output value of a sensor mounted on the cutting tool, a processing unit that calculates a physical quantity related to the cutting tool from the output value received by the receiving unit, and a display unit that displays an image including a graph showing time series data of the physical quantity and a distribution image showing the distribution of the physical quantity. In this way, by simultaneously displaying the graph and the distribution image, the state of the cutting tool mounted with the sensor during cutting processing can be easily grasped.
  • the sensor can be a strain sensor
  • the output value can be the output value of the sensor during cutting processing by the cutting tool
  • the processing unit can calculate the cutting resistance from the output value
  • the display unit can generate a distribution image by plotting two components of the cutting resistance calculated from the output value within a specified time on a plane, and the two components can be components of the cutting resistance in two axial directions that intersect in a plane perpendicular to the rotation axis of the cutting tool.
  • the display unit may display a figure having a width corresponding to a predetermined time, superimposed on the graph
  • the processing device may further include an operation unit for inputting instructions to the display unit, and in response to at least one of the width and the position of the figure on the graph being changed by operating the operation unit, the processing unit may calculate a physical quantity using the output value on which the changed figure is superimposed, and the display unit may generate and display a distribution image representing the distribution of the physical quantity calculated using the output value on which the changed figure is superimposed.
  • the display unit may update the distribution image showing the distribution of the physical quantity calculated by the processing unit while moving the figure along the time axis of the graph. This allows the time-dependent change in the physical quantity related to the cutting tool to be confirmed through an animation of the distribution image, making it easier to grasp the state of the cutting tool equipped with the sensor.
  • the amount of movement of the figure in one go may be specified by operating the operation unit. This allows the generation of an animation of a distribution image appropriate for grasping the state of the milling tool equipped with the sensor.
  • the speed at which the distribution image is updated may be specified by operating the operation unit. This allows the playback speed of the distribution image animation to be specified appropriately in order to grasp the state of the milling tool on which the sensor is mounted.
  • the processing unit may adjust the update speed of the distribution image based on the feed speed of the cutting tool, or the number of revolutions per unit time of the cutting tool and the sampling frequency of the output value. This makes it easy to compare the measurement results of two cutting processes at the same time.
  • the receiving unit may receive an output value in a first turning process in which the feed rate is a first speed and an output value in a second turning process in which the feed rate is a second speed that is higher than the first speed
  • the processing unit may calculate a physical quantity from the output value in the first turning process and the output value in the second turning process, and the processing unit may increase the update speed of the distribution image generated from the output value in the first turning process or decrease the update speed of the distribution image generated from the output value in the second turning process.
  • the receiving unit may receive an output value in a first milling process in which the rotation speed is a first rotation speed and the sampling frequency of the output value is a first frequency, and an output value in a second milling process in which the rotation speed is a second rotation speed and the sampling frequency of the output value is a second frequency.
  • the processing unit may determine a first time as the predetermined time from the output value in the first milling process, and may determine a second time as the predetermined time from the output value in the second milling process. If the first time is greater than the second time, the update speed of the distribution image generated from the output value in the first milling process may be decreased, or the update speed of the distribution image generated from the output value in the second milling process may be increased.
  • machining state i.e., the state of the milling tool
  • timing i.e., the timing when the position of the milling tool is the same
  • the machining state i.e., the state of the milling tool
  • the first rotation speed is S1
  • the first frequency is fs1
  • the first time is T1
  • Z1 is a positive integer
  • the second rotation speed is S2, the second frequency is fs2, the second time is T2, Z2 is a positive integer
  • a processing method includes a receiving step in which a communication device receives from the cutting tool an output value of a sensor mounted on the cutting tool, a processing step in which a processing device calculates a physical quantity related to the cutting tool from the output value received by the communication device, and a display step in which a display device displays an image including a graph showing time-series data of the physical quantity and a distribution image showing the distribution of the physical quantity. In this way, by simultaneously displaying the graph and the distribution image, the state of the cutting tool equipped with the sensor can be easily grasped.
  • a computer program causes a computer to realize a receiving function for receiving from the cutting tool an output value of a sensor mounted on the cutting tool, a processing function for calculating a physical quantity related to the cutting tool from the output value received by the receiving function, and a display function for displaying an image including a graph showing time series data of the physical quantity and a distribution image showing the distribution of the physical quantity. In this way, by simultaneously displaying the graph and the distribution image, the state of the cutting tool on which the sensor is mounted can be easily grasped.
  • a system includes a sensor mounted on a cutting tool and any one of the processing devices described above in (1) to (11), and the cutting tool includes a communication unit that transmits an output value of the sensor to the processing device. This makes it easy to grasp the state of the cutting tool on which the sensor is mounted.
  • a system 100 includes a processing device 102, a communication device 104, an operation device 106, a display device 108, and a sensor module 112.
  • the processing device 102 is realized by, for example, a computer.
  • the communication device 104 has a wireless function and receives data transmitted from a sensor module 112 mounted on a cutting tool 110.
  • the communication device 104 functions as a receiving unit for the processing device 102.
  • the cutting tool 110 is mounted on a cutting device 114 and is used for cutting a workpiece. The machining state by the cutting tool 110 is reflected in a measurement value (i.e., an output value of the sensor) by the sensor module 112.
  • the communication device 104 outputs the received output value of the sensor to the processing device 102.
  • the operation device 106 is a device for inputting instructions to the processing device 102.
  • the operation device 106 includes, for example, a keyboard, a mouse, a touch panel, and the like for a computer.
  • the display device 108 is an image display device such as a liquid crystal display device.
  • the display device 108 functions as a display unit for the processing device 102.
  • the processing device 102 stores and analyzes the output values input from the communication device 104, and displays the physical quantities calculated from the output values and their distribution images on the display device 108 in accordance with instructions from the operation device 106.
  • FIG. 1 shows a case where the communication device 104, the operation device 106, and the display device 108 are arranged outside the processing device 102, some or all of them may be included in the processing device 102.
  • a touch panel display may be used for the operation device 106 and the display device 108, and the touch panel display may be included in the processing device 102.
  • the milling tool 110 is a milling tool having a cutting part 120 at its end.
  • the cutting part 120 is provided with a cutting blade 122 that is brought into contact with the object to be cut and cuts the object to be cut.
  • one cutting blade 122 is shown, but a plurality of cutting blades (for example, four) may be provided.
  • the cutting blade 122 may be detachably fixed to the cutting part 120.
  • the milling tool 110 has a sensor module 112A, a sensor module 112B, a sensor module 112C, and a sensor module 112D provided on a side surface of the milling tool 110.
  • the interval between adjacent modules in the rotation direction of the sensor module 112A, the sensor module 112B, the sensor module 112C, and the sensor module 112D is 90 degrees around the rotation axis of the milling tool 110.
  • the sensor module 112A, the sensor module 112B, the sensor module 112C, and the sensor module 112D include the same type of sensor and have the same configuration. Therefore, when there is no need to distinguish between them, they are written as sensor modules 112.
  • FIG. 2 shows orthogonal right-handed XYZ axes set with respect to the cutting tool 110.
  • the rotation axis of the cutting tool 110 is the Z axis
  • the X axis is set in a direction from the rotation axis through the sensor module 112A (specifically, the sensor) toward the outside of the cutting tool 110.
  • the Y axis is set in a direction from the rotation axis through the sensor module 112B (specifically, the sensor) toward the outside of the cutting tool 110.
  • the sensors included in each of the sensor modules 112A, 112B, 112C, and 112D may be arranged on the side of the cutting tool 110, and the parts of each sensor module other than the sensor may be housed in a cylindrical housing (not shown) arranged around the cutting tool 110.
  • the sensor module 112 includes a sensor 130, an AD conversion unit 132, a memory 134, a control unit 136, a communication unit 138, a bus 140, and a power supply unit 142.
  • the sensor 130 is disposed at a position corresponding to any one of the sensor modules 112A, 112B, 112C, and 112D shown in FIG. 2.
  • the sensor 130 is a strain sensor.
  • the sensor 130 may be a sensor other than a strain sensor, for example, an acceleration sensor.
  • the AD conversion unit 132 converts an input analog signal into a digital signal and outputs it. That is, the AD conversion unit 132 samples the analog signal (i.e., the output value) output from the sensor 130 at a predetermined sampling frequency to generate a digital signal.
  • the generated output value which is a digital signal, is transmitted to the memory 134 via the bus 140.
  • the memory 134 is, for example, a rewritable non-volatile semiconductor memory, and stores the data transmitted via the bus 140. Additionally, the memory 134 stores a computer program (hereinafter simply referred to as a program) executed by the control unit 136.
  • the control unit 136 includes a CPU (Central Processing Unit).
  • the control unit 136 reads the output values stored in the memory 134 and outputs them to the communication unit 138.
  • the communication unit 138 transmits the input data to the outside of the sensor module 112, that is, to the communication device 104.
  • the communication unit 138 has a wireless communication function such as Wi-Fi. Specifically, the communication unit 138 generates and transmits a communication packet including the data input from the control unit 136, the address of the communication device 104 as a destination address, and the address of the communication unit 138 as a source address. As a result, the communication packet transmitted from the communication unit 138 is received by the communication device 104.
  • the bus 140 transmits data exchanged between the AD conversion unit 132, the memory 134, and the control unit 136.
  • the power supply unit 142 supplies the power required for each unit constituting the sensor module 112 to function.
  • the power supply unit 142 is, for example, a battery.
  • One sensor module may include multiple sensor modules.
  • one sensor module 112 may include four sensors, and the sensors may be arranged at positions corresponding to the sensor modules 112A, 112B, 112C, and 112D shown in FIG. 2.
  • the sensor module 112 includes a total of four AD conversion units 132 corresponding to each of the four sensors 130.
  • Each AD conversion unit 132 samples the output value of the corresponding sensor 130 to generate a digital output value, and stores the digital output value in the memory 134 as time-series data.
  • the control unit 136 When transmitting output values to the communication device 104 via the communication unit 138, the control unit 136 transmits the output values so that the processing device 102 can distinguish which sensor each transmitted output value is an output value of. For example, when transmitting the output values, the control unit 136 may transmit the output values with information identifying the sensor that output the output value.
  • the processing device 102 includes a control unit 160, an IF unit 162, a memory 164, and a bus 166.
  • the control unit 160 is configured to include a CPU.
  • the memory 164 is, for example, a rewritable non-volatile semiconductor memory, and stores the program executed by the control unit 160.
  • the memory 164 may be a HDD (Hard Disk Drive).
  • the memory 164 provides a work area for the program executed by the control unit 160.
  • the IF unit 162 is an interface for exchanging data with each of the communication device 104, the operation device 106, and the display device 108.
  • the IF unit 162 transmits data (i.e., sensor output values) transmitted from the communication device 104 to the memory 164 via the bus 166 for storage.
  • the IF unit 162 transmits instructions input by operating the operation device 106 to the control unit 160 via the bus 166.
  • the control unit 160 executes processing described below and stores the processing results in the memory 164.
  • a part of the memory 164 functions as a video memory for storing video data corresponding to an image to be displayed on the display device 108.
  • the IF unit 162 transmits the data in the video memory of the memory 164 to the display device 108 and displays it as an image on the display device 108.
  • the memory 164 also stores information about the cutting tool 110 and processing conditions (e.g., rotation speed, feed rate, etc.) during cutting (i.e., turning).
  • the information about the milling tool 110 includes information such as the shape, dimensions, material (e.g., Poisson's ratio), number of cutting edges, position of each cutting edge, and the placement positions of sensor module 112A, sensor module 112B, sensor module 112C, and sensor module 112D.
  • the control unit 160 reads the output values (i.e., strain values) of the sensor modules 112A, 112B, 112C, and 112D stored in the memory 164, and calculates the load (i.e., cutting resistance) and moment on the cutting tool 110 from the shape and material (e.g., Poisson's ratio) of the cutting tool 110 and the arrangement positions of the sensor modules 112A, 112B, 112C, and 112D.
  • the control unit 160 stores each component (X component, Y component, and Z component) of the calculated load in the memory 164 as time-series data.
  • the control unit 160 also stores the moment in the memory 164 as time-series data.
  • the control unit 160 reads the calculation result from the memory 164 and displays it on the display device 108, for example, as shown in FIG. 5.
  • display screen 200 includes areas 202, 204, 206, 208, and 210.
  • Area 202 includes a title 212 indicating the program displaying the screen, and operation buttons displayed on the right edge for the entire display screen 200.
  • the right edge portion of area 202 displays buttons for changing the display form of display screen 200 (i.e., icon display, window display, and full screen display) and a button for closing display screen 200 (i.e., an exit button).
  • the left area of area 206 shows graphs representing the time series data of the calculated physical quantities related to the cutting tool, namely the XYZ components of the load (represented by Fx, Fy, and Fz, respectively) and the Z component of the torque M (represented by Mz).
  • the horizontal axis represents time (seconds). That is, the upper graph shows the Fx component and the Fy component superimposed.
  • the intermediate graph represents the Z component Fz, and the lower graph represents the Z component Mz of the torque.
  • N Newton
  • the min, max, ave, and sd shown in the lower right frame of each graph respectively represent the maximum value, minimum value, average value, and standard deviation of each physical quantity within a specified section of each graph (i.e., Window 250, Window 252, and Window 254).
  • the right area of the area 206 displays a distribution image of the data in the window 250 shown in the upper graph, that is, a distribution image in which multiple data in the window 250 are plotted with Fx on the horizontal axis and Fy on the vertical axis.
  • the width of the window 250 (time width, hereinafter also referred to as the interval width) can be changed, and the data in the window 250 changes according to the change in the width of the window 250, so a new distribution image is generated accordingly and displayed on the display screen 200.
  • the window 250 can be moved in the time axis direction by operating the operation device 106. When the window 250 is moved, the data in the window 250 also changes, so a new distribution image is generated accordingly and displayed on the display screen 200.
  • the shape of the window 250 is not limited to a rectangle. It is sufficient if it is visual information (i.e., a figure, a color, etc.) that indicates the data used to generate the distribution image.
  • Area 204 includes cell 220, cell 222, cell 224, cell 226, cell 228, mode selection button 230, reference button 232, display button 234, and display graph save button 236.
  • Cell 220 is a cell for setting the step width, i.e., the amount (in seconds) by which window 250 is moved.
  • Cell 222 is a cell for setting the window width, i.e., the width (in seconds) of window 250. Window 250 moves according to the value (for example, T0 (seconds)) set in cell 220, and one distribution image is generated and displayed using the data in window 250 as described above. Therefore, the speed at which the distribution image is generated (i.e., the speed at which the distribution image displayed in area 206 is updated) is 1/T0 (sheets/second).
  • Cell 224 is a cell for displaying or setting the machining rotational speed of the milling tool 110 (the number of revolutions per unit time of the milling tool 110, in rpm).
  • Cell 226 is a cell for displaying or setting the feed rate of the milling tool (in mm/sec).
  • Cells 224 and 226 display or set the milling conditions obtained by acquiring the original data (i.e., the sensor output value) for calculating the data (i.e., the physical quantity) displayed in area 206. For example, since the machining conditions are input to the cutting device 114, the processing device 102 can acquire the milling conditions from the cutting device 114 and store them in the memory 164.
  • control unit 160 reads out the machining conditions and displays them in cells 224 and 226. Also, if the milling conditions are not stored in the memory 164 of the processing device 102, they are set in cells 224 and 226 by operating the operating device 106.
  • Cell 228 is a cell for setting or displaying the playback speed of the animation (i.e., the speed at which the distribution image is updated, hereinafter also referred to as the playback speed).
  • the playback speed of the animation can be calculated by 1/T0 (fps) as described above.
  • the playback speed of the animation can be changed (i.e., adjusted) as described later.
  • the mode selection button 230 is a button for selecting the playback standard of the animation. When the mode selection button 230 is operated, a pull-down menu including multiple candidates is displayed, and a selection can be made from the multiple candidates.
  • the candidates included in the pull-down menu are, for example, "machining speed", "feed rate”, and "manual".
  • the playback speed is automatically determined (i.e., adjusted) based on the machining speed of cell 224 (i.e., by the control unit 160) and displayed in cell 228, as described later.
  • the feed rate is selected (hereinafter referred to as the feed rate standard)
  • the playback speed is automatically determined (i.e., by the control unit 160) based on the feed rate of cell 226 and displayed in cell 228.
  • These cases in which the playback speed is automatically determined (i.e., adjusted) are called automatic mode.
  • the playback speed is set in cell 228 by operating the operation device 106.
  • Figure 5 shows the state in which the processing speed is selected as the playback standard.
  • the browse button 232 is a button for reading out the data to be displayed in the area 206.
  • the browse button 232 is operated, a list including file names of candidates to be read out is displayed in the area 210.
  • the display button 234 is a button for instructing that the data of the file selected in the list displayed in the area 210 be read out and displayed in the area 206.
  • the save displayed graph button 236 is a button for instructing that the graph displayed in the area 206 be saved.
  • a screen e.g., a dialog box
  • FIG. 5 shows a state in which the four files “data0.csv” through “data3.csv” are listed in the area 210, "data1.csv” is selected, and the display button 234 is operated to display the data of "data1.csv” in the area 206.
  • Area 208 includes a play button 260 and a play cursor 262.
  • Play button 260 is a button that starts an animation display of the distribution image displayed in area 206.
  • Play cursor 262 indicates the current playback position within the entire playback time of the animation.
  • Window 250 shown in area 206 moves in accordance with the animation playback of the distribution image. That is, window 250 is displayed at a position on the upper graph that includes the data used to generate the displayed distribution image. In the interrupted and lower graphs, a figure similar to window 250 (i.e. window 252 and window 254) is displayed at a position corresponding to the same timing as window 250.
  • the cutting resistance of the milling tool equipped with the sensor during milling can be easily grasped, and damage or wear of the cutting blade can be easily determined from the shape of the distribution diagram. For example, if damage or wear occurs in a specific cutting blade out of the four cutting blades, the length cut by that cutting blade will be shortened, and the line segment corresponding to that cutting blade out of the four line segments that make up the cross will be shortened.
  • the distribution image is an image in which the X-component Fx and Y-component Fy of the load (i.e., cutting resistance) are plotted, but this is not limiting.
  • it may be an image in which the Z-component Fz is plotted with the X-component Fx or the Y-component Fy.
  • the distribution image may be an image in which two components of a physical quantity related to a cutting tool and expressed as a vector are plotted.
  • the width of the window 250 can be set by the cell 222, and the window 250 can be moved along the time axis. This makes it possible to generate a distribution image appropriate for grasping the state of the cutting tool on which the sensor is mounted, making it easier to grasp the state of the cutting tool on which the sensor is mounted.
  • the window 250 is moved along the time axis of the graph while the distribution image showing the distribution of the physical quantities calculated by the control unit 160 is updated. This allows the time-dependent changes in the physical quantities related to the cutting tool to be confirmed through an animation of the distribution image, making it easier to grasp the state of the cutting tool equipped with the sensor.
  • the amount of movement of the window 250 per movement can be specified by the cell 220. This makes it possible to generate an animation of a distribution image appropriate for grasping the state of the cutting tool equipped with the sensor.
  • cell 228 allows the user to specify the playback speed of the animation, i.e., the speed at which the distribution image is updated. This allows the generation of an animation of a distribution image appropriate for understanding the state of the milling tool on which the sensor is mounted.
  • the feed rates of the milling tool are different (other conditions are the same), as shown in FIG. 5, even if the distribution image of the physical quantity is animated, it is difficult to compare them at the same timing in the milling process (for example, when the same distance is cut) due to the difference in feed rate.
  • the feed rates of the two machining conditions are the first feed rate and the second feed rate, and the second feed rate is greater than the first feed rate (i.e., the second feed rate>the first feed rate).
  • the playback speed of the animation of the distribution image of the physical quantity calculated from the output value of the sensor obtained by performing the milling process at the first feed rate is increased.
  • the difference in timing due to the difference in feed rate can also be adjusted by decreasing the playback speed of the animation of the distribution image of the physical quantity calculated from the output value of the sensor obtained by performing the milling process at the second feed rate.
  • the playback speed of the animation can be calculated by 1/T0 (fps), so T0, that is, the step width, is adjusted.
  • the optimal interval width i.e., the width of window 250 shown in FIG. 5
  • the playback speed of the animation corresponding to a larger interval width is decreased.
  • the playback speed of the animation corresponding to a smaller interval width may be increased. Note that since the animation playback speed can be calculated as 1/T0 (fps) as described above, T0, i.e., the step width, is adjusted.
  • the rotation speed of the cutting tool is S (rpm)
  • the sampling frequency is fs (Hz)
  • the section width T is set so that one frame of the animation image can be cut out (i.e., generated) for each rotation number at which the position of the rotating cutting tool returns to the position at the start of rotation (hereinafter referred to as the initial position).
  • 60/S represents the time it takes for the cutting tool to make one rotation.
  • fs x (60/S) represents the number of samples (i.e., the number of data) during one rotation of the cutting tool, that is, the number of sensor output values obtained during one rotation of the cutting tool. Therefore, if the number of samples Z obtained during N rotations of the cutting tool from the initial position is an integer value, sampling is performed at the timing when the position of the cutting tool returns to the initial position. If the section width T is determined as described above, one frame of the animation image is generated at each of these timings. However, since there are multiple candidates for N based on the above conditions alone, an appropriate T is determined based on the following constraints.
  • the lower limit Ts is an arbitrary value, and may be determined in advance based on the capacity of the memory 164 of the processing device 102.
  • the product of the feed rate and Tl is the amount of movement D of the cutting tool, so the upper limit value Tl can be set so that the amount of movement D is a value that makes it possible to determine local changes.
  • the section width T is determined for the time series data of the physical quantity calculated from the time series data of the sensor output value, where at least one of the machining conditions, the rotation speed and the sampling frequency, is different, and the playback speed is adjusted for the two determined section widths T as described above. That is, the playback speed of the animation corresponding to the larger section width is decreased, or the playback speed of the animation corresponding to the smaller section width is increased.
  • machining state i.e., the state of the cutting tool
  • timing i.e., the timing when the position of the cutting tool is the same
  • the machining state i.e., the state of the cutting tool
  • the update speed of the distribution image is adjusted based on the feed speed of the cutting tool 110, or the machining rotation speed of the cutting tool 110 (i.e. the number of rotations per unit time of the cutting tool) and the sampling frequency of the output value. This makes it easy to compare the measurement results of two cutting processes at the same time.
  • FIG. 6 The operation of the processing device 102 will be described with reference to Fig. 6.
  • the process shown in Fig. 6 is realized by the control unit 160 (see Fig. 4) reading and executing a predetermined program from the memory 164 in response to an instruction input to the processing device 102 by operating the operation device 106. It is assumed that the physical quantity of the cutting tool 110 is calculated by the control unit 160 from the output value of the sensor obtained by the cutting process using the cutting tool 110 by the cutting device 114, and is stored in the memory 164 as time-series data.
  • step 300 the control unit 160 displays an initial screen on the sensor 130.
  • the image data of the initial screen stored in the memory 164 is copied to an area of the memory 164 that is used as a video memory.
  • the display screen 270 which is the initial screen shown in FIG. 7, for example, is displayed on the sensor 130.
  • the display screen 270 corresponds to the image on the display screen 200 shown in FIG. 5 before the reference button 232 is operated.
  • step 302 the control unit 160 determines whether or not the reference button 232 shown in FIG. 7 has been operated. If it is determined that the operation has been performed, control proceeds to step 306. If not, control proceeds to step 304.
  • step 304 the control unit 160 determines whether or not an instruction to end has been received. If it is determined that an instruction to end has been received, the program is terminated. If not, control returns to step 302.
  • An instruction to end is given, for example, by operating the end button on the right end of the area 202 shown in FIG. 7.
  • step 306 the control unit 160 displays a file list in the area 210 in FIG. 7. Thereafter, control proceeds to step 308.
  • a file list is displayed as shown in FIG. 5.
  • step 308 the control unit 160 determines whether or not a file has been selected from the file list displayed in area 210. If it is determined that a file has been selected, control proceeds to step 310. If not, the processing of step 308 is repeated. Note that the selection of a file displayed in area 210 is not limited to one, and multiple files may be selected.
  • step 310 the control unit 160 reads the data of the file selected in step 308 from the memory 164 and displays it on the display device 108. Thereafter, control proceeds to step 312.
  • a graph of the time series data and a distribution image are read out in the area 206.
  • the distribution image is generated, for example, using the data in a window whose position and window width are set by initial settings. Note that if multiple files are selected, the data of each file can be displayed side by side.
  • step 312 the control unit 160 determines whether a numerical value has been input. Specifically, the control unit 160 determines whether any of the cells 220, 222, 224, 226, and 228 has been selected by operating the operation device 106 and a numerical value has been input. If it is determined that a numerical value has been input, control proceeds to step 314. If not, control proceeds to step 316. Note that the playback standard is set to "manual" by default. Also, as described above, if the processing conditions (i.e., processing speed and feed rate) of the data contained in the file read in step 310 are stored in the memory 164, the control unit 160 reads out the processing conditions and displays them in the cells 224 and 226.
  • the processing conditions i.e., processing speed and feed rate
  • step 314 the control unit 160 inputs the input value detected in step 312 into the corresponding cell. Then, control proceeds to step 316.
  • step 316 the control unit 160 determines whether or not a button has been operated. Specifically, the control unit 160 determines whether or not any of the mode selection button 230, the reference button 232, the display button 234, the save displayed graph button 236, and the play button 260 has been operated. If it is determined that an operation has been performed, control proceeds to step 318. If not, control proceeds to step 320.
  • step 318 the control unit 160 determines whether the automatic mode has been set as the playback standard and whether two files have been selected in step 308. If it is determined that the automatic mode has been set and two files have been selected, control proceeds to step 322. If not, control proceeds to step 320.
  • step 320 the control unit 160 executes the process corresponding to the button determined to have been operated in step 316, as described above. Thereafter, control proceeds to step 324.
  • step 322 the control unit 160 adjusts the playback speed of the distribution image animation. Then, control proceeds to step 324. Specifically, the control unit 160 adjusts the playback speed of the distribution image animation generated from the two time series data as described above, depending on whether the playback reference is the feed speed reference or the rotation speed reference.
  • step 324 the control unit 160 determines whether an instruction to end has been received, similar to step 304. If it is determined that an instruction to end has been received, the program is terminated. If not, control returns to step 312.
  • control unit 160 in response to an operation of the operation unit, displays the display screen 200 as shown in FIG. 5 on the display device 108 and executes processing according to the operation. Therefore, by simultaneously displaying the graph and the distribution image, the state of the cutting tool equipped with the sensor during cutting processing can be easily grasped.
  • each process (each function) of the above-mentioned embodiments may be realized by a processing circuit (circuitry) including one or more processors.
  • the processing circuit may be configured by an integrated circuit or the like that combines one or more memories, various analog circuits, and various digital circuits in addition to the one or more processors.
  • the one or more memories store programs (instructions) that cause the one or more processors to execute each of the above processes.
  • the one or more processors may execute each of the above processes according to the programs read from the one or more memories, or may execute each of the above processes according to a logic circuit that has been designed in advance to execute each of the above processes.
  • the processor may be a CPU, a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), an ASIC (Application Specific Integrated Circuit), or any other processor suitable for computer control.
  • the recording medium is, for example, an optical disk (such as a DVD (Digital Versatile Disc)) or a removable semiconductor memory (such as a USB (Universal Serial Bus) memory).
  • an optical disk such as a DVD (Digital Versatile Disc)
  • a removable semiconductor memory such as a USB (Universal Serial Bus) memory.
  • a computer program can be transmitted over a communication line, the recording medium refers to a non-temporary recording medium.
  • the computer By having a computer mounted on a vehicle read the program stored in the recording medium, the computer is able to transmit data that can be effectively used by the service provided by the external device, taking into account the delay time and communication bandwidth when the vehicle-mounted device uploads data to an external device such as a roadside device, as described above.
  • the computer-readable non-transitory recording medium is On the computer, A receiving function for receiving an output value of a sensor mounted on the cutting tool from the cutting tool; A processing function for calculating a physical quantity related to the cutting tool from the output value received by the receiving function; A computer program that realizes a display function of displaying an image including a graph representing time-series data of the physical quantity and a distribution image representing a distribution of the physical quantity is stored.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)
  • Milling Processes (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
PCT/JP2022/041290 2022-11-07 2022-11-07 処理装置、処理方法、システムおよびコンピュータプログラム Ceased WO2024100693A1 (ja)

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PCT/JP2022/041290 WO2024100693A1 (ja) 2022-11-07 2022-11-07 処理装置、処理方法、システムおよびコンピュータプログラム
JP2023524658A JP7384321B1 (ja) 2022-11-07 2022-11-07 処理装置、処理方法、システムおよびコンピュータプログラム
US19/126,273 US20260077441A1 (en) 2022-11-07 2023-11-06 Processing device, processing method, system, and non-transitory computer readable storage medium storing computer program
JP2024555890A JP7632773B2 (ja) 2022-11-07 2023-11-06 処理装置、処理方法、システムおよびコンピュータプログラム
CN202380074693.6A CN120091888A (zh) 2022-11-07 2023-11-06 处理装置、处理方法、系统以及计算机程序
EP23888660.0A EP4616995A4 (en) 2022-11-07 2023-11-06 PROCESSING DEVICE, PROCESSING METHOD, COMPUTER SYSTEM AND PROGRAM
PCT/JP2023/039905 WO2024101313A1 (ja) 2022-11-07 2023-11-06 処理装置、処理方法、システムおよびコンピュータプログラム

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