WO2021192071A1 - Appareil de traitement de pièces à travailler - Google Patents

Appareil de traitement de pièces à travailler Download PDF

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Publication number
WO2021192071A1
WO2021192071A1 PCT/JP2020/013197 JP2020013197W WO2021192071A1 WO 2021192071 A1 WO2021192071 A1 WO 2021192071A1 JP 2020013197 W JP2020013197 W JP 2020013197W WO 2021192071 A1 WO2021192071 A1 WO 2021192071A1
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WO
WIPO (PCT)
Prior art keywords
machining
range
work
monitoring range
data
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PCT/JP2020/013197
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English (en)
Japanese (ja)
Inventor
祐太 風間
信也 熊崎
小川　正
敏貴 福永
貴史 伊藤
Original Assignee
株式会社Ｆｕｊｉ
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.)
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Application filed by 株式会社Ｆｕｊｉ filed Critical 株式会社Ｆｕｊｉ
Priority to PCT/JP2020/013197 priority Critical patent/WO2021192071A1/fr
Priority to JP2022509863A priority patent/JP7426476B2/ja
Publication of WO2021192071A1 publication Critical patent/WO2021192071A1/fr

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    • 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
    • B23Q15/16—Compensation for wear of the tool
    • 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
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • 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—Programme-control systems
    • G05B19/02—Programme-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 programme data in numerical form

Definitions

  • This specification relates to a work processing apparatus.
  • Patent Document 1 discloses a numerically controlled machine tool that monitors a processing load by a processing load monitoring method.
  • the reference data and variance of the machining load are obtained from the sampling data of the machining load multiple times during trial cutting (reference data table), and the value of the variance is used to determine the variation of the sampling data.
  • the corresponding threshold value is set, the reference data and the measured data of the machining load are compared at regular intervals by the load monitoring means, and it is detected whether or not the difference exceeds the threshold value, and the machining load is processed. Is being monitored.
  • the present specification discloses a work processing apparatus capable of appropriately setting a threshold value for monitoring and, by extension, appropriately monitoring a machining state.
  • the present specification is a work processing apparatus capable of performing machining of a work along a machining process by using a machining tool, and detects a detectable physical quantity which is a physical quantity related to the machining of the work and is detectable.
  • the detection unit to be detected and the monitoring range for monitoring the state of the detectable physical quantity along the processing process are set based on the actual detection data actually detected by the detection unit during the operation of the processing process.
  • the upper limit value of the monitoring range set by the setting unit and / or the upper limit value of the monitoring range set by the setting unit based on the actual detection data detected by the detection unit for the setting unit and any part of the processing processes.
  • a work processing apparatus including an adjusting unit capable of adjusting the lower limit value is disclosed.
  • the setting unit sets the monitoring range for monitoring the state of the detectable physical quantity along the machining process of the workpiece based on the actual detection data actually detected by the detection unit during the operation of the machining process. And set. Then, the adjusting unit sets an upper limit value and / or a lower limit value of the monitoring range set by the setting unit based on the actual detection data detected by the detecting unit for any part of the machining process. Can be adjusted. As a result, for example, even when a plurality of sampling data (actual measurement data) include data (heterogeneous data) that is relatively different from other sampling data such as abnormal data, it can be used for monitoring.
  • the threshold value can be set appropriately, and the machining state can be appropriately monitored.
  • FIG. 5 is a flowchart showing a program executed by the control device 47 shown in FIG. It is a figure which shows the load data of the 1st work processing.
  • FIG. 9C It is a figure which shows that the latest load data is out of the monitoring range, and the load data outside the monitoring range is normal data. It is a figure which shows the adjusted monitoring range after adjusting the monitoring range shown in FIG.
  • 6 is a flowchart showing a program (work processing execution subroutine) executed by the control device 47 shown in FIG. It is a figure which shows the division range which divided the monitoring range into a plurality of divisions, and the correlation between those division ranges and a correction amount. 6 is a flowchart showing a program (tool life determination subroutine) executed by the control device 47 shown in FIG. It is a figure which shows the division range which divided the monitoring range into a plurality of divisions, and the correlation between the division range and the change amount.
  • the processing system (line production equipment) 10 includes a plurality of base modules 20, a plurality of (10 in this embodiment) working machine modules 30 provided on the base modules 20, and articulated robots. It includes a robot (hereinafter, may be referred to as a robot) 70 (see, for example, FIG. 2).
  • the machining system 10 is configured by forming a plurality of modules (base module 20 and work machine module 30) into a line, and machining the work W.
  • “front and back”, “left and right", and "up and down” related to the processing system 10 will be treated as front and back, left and right, and up and down when viewed from the front side of the processing system 10.
  • the base module 20 includes a robot 70 which is a work transfer device and a robot control device (not shown) that controls the robot 70.
  • the robot 70 has a manipulation function and can release the work W to be gripped and conveyed, and has a moving (self-propelled) function so that the robot 70 can move while gripping the work W.
  • a lathe module 30A there are a plurality of types of working machine modules 30, such as a lathe module 30A, a drill mill module 30B, a pre-machining stock module 30C, a post-machining stock module 30D, an inspection module 30E, and a temporary placement module 30F.
  • working machine modules 30 such as a lathe module 30A, a drill mill module 30B, a pre-machining stock module 30C, a post-machining stock module 30D, an inspection module 30E, and a temporary placement module 30F.
  • the lathe module 30A is a modularized lathe.
  • the lathe is a "work processing device” that rotates a work W, which is an object to be machined, and processes it with a fixed cutting tool 43a.
  • the cutting tool 43a is a "machining tool” for machining the work W.
  • the work processing apparatus can execute the processing of the work W along the processing process by using the cutting tool 43a (machining tool).
  • the lathe module 30A includes a movable bed 41, a spindle base 42, a tool base 43, a tool base moving device 44, a processing chamber 45, a traveling chamber 46, and a module control device 47 (hereinafter, referred to as a control device 47). In some cases).
  • the movable bed 41 moves along the front-rear direction on a rail (not shown) provided on the base module 20 via a plurality of wheels 41a.
  • the headstock 42 rotatably holds the work W.
  • the headstock 42 rotatably supports the spindles 42a arranged horizontally along the front-rear direction.
  • a chuck 42b for gripping the work W is provided at the tip of the main shaft 42a.
  • the spindle 42a is rotationally driven by the servomotor 42d via the rotation transmission mechanism 42c.
  • the current (driving current) of the servomotor 42d is detected by the current sensor 42e (see FIG. 3), and the detection result is output to the control device 47 described later.
  • the tool base 43 is a device that gives a feed motion to the cutting tool 43a.
  • the tool base 43 is a so-called turret type tool base, and is a tool holding portion 43b on which a plurality of cutting tools 43a for cutting the work W are mounted, and the tool holding portion 43b is rotatably supported and a predetermined cutting position. It has a rotary drive unit 43c that can be positioned at the same time.
  • the tool base moving device 44 is a device that moves the tool base 43 and thus the cutting tool 43a along the vertical direction (X-axis direction) and the front-back direction (Z-axis direction).
  • the tool base moving device 44 has an X-axis driving device 44a that moves the tool base 43 along the X-axis direction, and a Z-axis driving device 44b that moves the tool base 43 along the Z-axis direction.
  • the X-axis drive device 44a includes an X-axis slider 44a1 slidably attached to a column 48 provided on the movable bed 41 in the vertical direction, and a servomotor 44a2 for moving the X-axis slider 44a1.
  • the Z-axis drive device 44b has a Z-axis slider 44b1 slidably attached to the X-axis slider 44a1 in the front-rear direction, and a servomotor 44b2 for moving the Z-axis slider 44b1. ..
  • a tool base 43 is attached to the Z-axis slider 44b1.
  • the current (driving current) of the servomotor 44a2 is detected by the current sensor 44a3 (see FIG. 3), and the detection result is output to the control device 47 described later.
  • the current (driving current) of the servomotor 44b2 is detected by the current sensor 44b3, and the detection result is output to the control device 47 described later.
  • the processing chamber 45 is a room (space) for processing the work W, and the inlet / outlet 45a1 of the processing chamber 45 is opened / closed by a shutter 45c driven by a motor (not shown), and the work W held by the robot 70 enters. It will be issued.
  • the open state (open position) of the shutter 45c is indicated by a solid line, and the closed state (closed position) is indicated by a two-dot chain line.
  • the traveling room 46 is a room (space) provided facing the entrance / exit 45a1 of the processing room 45. The robot 70 can travel in the traveling chamber 46.
  • the control device (module control device) 47 is a control device that drives and controls the spindle 42a, the rotation drive unit 43c, the tool base moving device 44, and the like. As shown in FIG. 3, the control device 47 is connected to the input / output device 47a, the storage device 47b, the communication device 47c, the rotation drive unit 43c, the current sensors 42e, 44a3, 44b3, and the servomotors 42d, 44a2, 44b2. ..
  • the control device 47 has a microcomputer (not shown), and the microcomputer includes an input / output interface, a CPU, a RAM, and a ROM (all not shown) connected via a bus.
  • the CPU executes various programs to acquire data from the input / output device 47a, the storage device 47b, the communication device 47c, and the current sensors 42e, 44a3, 44b3, and the input / output device 47a, the spindle 42a (servomotor 42d), and the like. It controls the rotation drive unit 43c and the tool table moving device 44 (servomotors 44a2, 44b2).
  • the RAM temporarily stores the variables necessary for executing the program, and the ROM stores the program.
  • the input / output device 47a is provided on the front surface of the work machine module 30, and the operator can input various settings, various instructions, etc. to the control device 47, and the operation status to the operator. It is for displaying information such as maintenance status and maintenance status.
  • the input / output device 47a is a device such as an HMI (human-machine interface) or a man-machine interface for exchanging information between a human and a machine.
  • the input / output device 47a is the input / output device 11 shown in FIG.
  • the input / output device 11 includes a display panel 11a, individual operation assist buttons 11b, alarm buzzer 11c, USB outlet 11d, editable / impossible select key 11e, emergency stop button 11f, automatic / individual select switch 11g, and operation preparation button 11h.
  • Automatic start button 11i continuous off button 11j, NC start button 11k, NC pause button 11l, spindle start button 11m, spindle stop button 11n, turret forward rotation button 11o, turret reverse rotation button 11p, door interlock select key 11q
  • the display panel 11a is a touch panel type monitor that displays various information.
  • the USB insertion port 11d is a port for inserting USB when inputting / outputting data.
  • the editable / non-editable select key 11e is used to edit data such as programs and parameters (for example, load monitoring range) stored in the storage devices 47b and 57b and the storage device in the control device. When the select key 11e is located at the left position, the editing operation cannot be performed, and when the select key 11e is located at the right position, the editing operation is possible.
  • the configuration of the input / output device 57a of the drimill module 30B is almost the same as the configuration of the input / output device 47a of the lathe module 30A, although the switches / buttons are slightly different.
  • the load monitoring range adjustment screen 100 shown in FIG. 5 can be displayed on the display panel 11a.
  • the load monitoring range adjustment screen 100 displays a data display unit 110 capable of displaying load data and an operation unit 120 for adjusting the load monitoring range of load data.
  • the operation unit 120 includes operation keys 121 to 144 described later, which can be input and operated by an operator.
  • the waveform display key 121 is a key for displaying the entire waveform of load data.
  • the vertical axis key 122 is a key for reflecting the enlargement / reduction of the waveform display of the load data on the vertical axis.
  • the horizontal axis key 123 is a key for reflecting the enlargement / reduction of the waveform display of the load data on the horizontal axis.
  • the display reduction key 124 is a key for reducing the waveform display of the load data.
  • the display enlargement key 125 is a key for enlarging the waveform display of the load data.
  • the save key 126 is a key for saving the change of the load monitoring range of the load data.
  • the return key 127 is a key for returning the display of the data display unit 110 to the previous screen (previous screen) or returning the operation to the previous screen.
  • the display axis selection key 128 is a key for selecting an axis for displaying load data (for which you want to adjust the monitoring range).
  • the "axis" is a drive shaft that is driven and controlled to machine the work W.
  • the X-axis which is the vertical drive shaft of the cutting tool 43a, and the front-rear drive shaft of the cutting tool 43a.
  • the Z-axis and the spindle 42a that rotatably support the work W.
  • the display position movement key 129 is a key for moving the display position (display frame) to a desired position (for example, a monitoring range) to be displayed in a series of load data.
  • the program display key 130 is a key for displaying a machining program on the data display unit 110 in place of or at the same time as the load data.
  • the monitoring range left movement key 131 is a key for moving to the left in order to edit (change) the monitoring range of the load data to be edited (change target).
  • the selected monitoring range display dialog 132 is a key for displaying a dialog for displaying the location (monitoring location) of the currently selected monitoring range for editing. This dialog can display the order of the currently selected (editing) monitoring range and the total number of monitoring ranges in the machining program.
  • the monitoring range right movement key 133 is a key for moving the monitoring range of the load data to be edited to the right in order to edit the monitoring range.
  • the adjustment (edit) range start position specification key 134 specifies the start position of the range (adjustment range) for editing (adjusting) the upper limit value and / or the lower limit value in the monitoring range of the load data to be edited (adjusted). It is a key to do.
  • the adjustment (edit) range end position specification key 135 specifies the end position of the range (adjustment range) for editing (adjusting) the upper limit value and / or the lower limit value in the monitoring range of the load data to be edited (adjusted). It is a key to do.
  • the range defined by the start position and the end position designated in this way is also referred to as a designated range.
  • the upper limit value expansion key 136 is a key for expanding the upper limit value of the adjustment range (designated range) (in other words, expanding the upper limit value along the vertical direction of the screen). In this case, the upper limit value after the change (adjustment) of the specified range is translated by moving the upper limit value before the change (adjustment) upward, but the amount of movement is arbitrarily set by the operator. It is possible.
  • the upper limit value reduction key 137 is a key for narrowing the upper limit value of the adjustment range (designated range) (in other words, reducing the upper limit value along the vertical direction of the screen). In this case, the upper limit value after the change of the designated range is translated by moving the upper limit value before the change downward, but the amount of movement can be arbitrarily set by the operator.
  • the lower limit value expansion key 138 is a key for expanding the lower limit value of the adjustment range (designated range) (in other words, expanding the lower limit value along the vertical direction of the screen). In this case, the lower limit value after the change of the designated range is translated by moving the lower limit value before the change downward, but the amount of movement can be arbitrarily set by the operator.
  • the lower limit value reduction key 139 is a key for narrowing the lower limit value of the adjustment range (designated range) (in other words, reducing the lower limit value along the vertical direction of the screen). In this case, the lower limit value after the change of the designated range is translated by moving the lower limit value before the change upward, but the amount of movement can be arbitrarily set by the operator.
  • the upper limit value maximizing key 140 is a key for expanding the upper limit value of the adjustment range (designated range) to the maximum value within the specified range (in other words, unifying the upper limit value to the maximum value).
  • the upper limit of the designated range can be flattened by the maximum value within the designated range.
  • the upper limit value may be expanded not to the maximum value within the specified range but to an arbitrary value (for example, less than the maximum value that the load data can take) that is larger than the maximum value within the specified range.
  • the upper limit value minimization key 141 is a key for narrowing the upper limit value of the adjustment range (designated range) to the minimum value within the designated range (in other words, unifying the upper limit value to the minimum value).
  • the upper limit of the designated range can be flattened at the minimum value within the designated range.
  • the upper limit value may be narrowed not only to the minimum value within the specified range but also to an arbitrary value (for example, a value larger than the lower limit value of the specified range) which is smaller than the minimum value within the specified range.
  • the lower limit value minimization key 142 is a key for expanding the lower limit value of the adjustment range (designated range) to the minimum value within the specified range (in other words, unifying the lower limit value to the minimum value).
  • the lower limit of the designated range can be flattened at the minimum value within the designated range.
  • the lower limit value may be expanded not only to the minimum value within the specified range but also to an arbitrary value (for example, a value larger than 0 (zero)) which is smaller than the minimum value within the specified range.
  • the lower limit value maximizing key 143 is a key for narrowing the lower limit value of the adjustment range (designated range) to the maximum value within the designated range (in other words, unifying the lower limit value to the maximum value).
  • the lower limit of the designated range can be flattened at the maximum value within the designated range.
  • the lower limit value may be narrowed not only to the maximum value within the specified range but also to an arbitrary value (for example, a value smaller than the upper limit value of the specified range) which is larger than the maximum value within the specified range.
  • the reset key 144 is a key for resetting the editing operation.
  • the keys are switches and push buttons.
  • the storage device 47b stores data related to the control of the lathe module 30A, for example, a control program (machining program), parameters used in the control program, data related to various settings and various instructions, load data, and the like.
  • the communication device 47c communicates with other modules in the same machining system, with different machining systems, or with a control computer that supervises a plurality of machining systems via the Internet. It is a device for mutual communication.
  • the drimill module 30B is a modularized machining center for drilling holes, milling, and the like.
  • a machining center is a "work machining device” that presses a rotating tool (rotary tool) against a fixed work W to perform machining.
  • the drimill module 30B includes a movable bed 51, a spindle head 52, a spindle head moving device 53, a work table 54, a processing chamber 55, a traveling chamber 56, and a module control device 57 (controlled in the present specification). It may be referred to as a device 57).
  • the movable bed 51 moves along the front-rear direction on a rail (not shown) provided on the base module 20 via a plurality of wheels 51a.
  • the spindle head 52 rotatably supports the spindle 52a.
  • a cutting tool 52b (for example, a drill, an end mill, etc.) for cutting the work W can be attached to the tip (lower end) of the spindle 52a via the spindle chuck.
  • the spindle 52a is rotationally driven by the servomotor 52c.
  • the spindle chuck clamps / unclamps the cutting tool 52b.
  • the current (driving current) of the servomotor 52c is detected by the current sensor 52d (see FIG. 7), and the detection result is output to the control device 57 described later.
  • the cutting tool 52b is a "machining tool" for machining the work W.
  • the spindle head moving device 53 is a device that moves the spindle head 52 and thus the cutting tool 52b along the vertical direction (Z-axis direction), the front-rear direction (Y-axis direction), and the left-right direction (X-axis direction).
  • the spindle head moving device 53 includes a Z-axis driving device 53a that moves the spindle head 52 along the Z-axis direction, an X-axis driving device 53b that moves the spindle head 52 along the X-axis direction, and a spindle head 52 in Y. It has a Y-axis drive device 53c that moves along the axial direction.
  • the Z-axis drive device 53a moves the Z-axis slider 53d slidably attached to the X-axis slider 53e along the Z-axis direction.
  • a spindle head 52 is attached to the Z-axis slider 53d.
  • the X-axis drive device 53b moves the X-axis slider 53e slidably attached to the Y-axis slider 53f along the X-axis direction.
  • the Y-axis drive device 53c moves the Y-axis slider 53f slidably attached to the main body 58 provided on the movable bed 51 along the Y-axis direction.
  • the Z-axis drive device 53a, the X-axis drive device 53b, and the Y-axis drive device 53c function by using the built-in servomotors 53a1, 53b1, 53c1 (see FIG. 7) as drive sources, respectively.
  • the currents (driving currents) of the servomotors 53a1, 53b1, 53c1 are detected by the current sensors 53a2, 53b2, 53c2 (see FIG. 7), and the detection results are output to the control device 57 described later.
  • the work table 54 fixedly holds the work W via the chuck 54b.
  • the work table 54 is fixed to a work table rotating device 54a provided on the front surface of the main body 58.
  • the work table rotating device 54a is rotationally driven around an axis extending along the front-rear direction.
  • the processing chamber 55 is a room (space) for processing the work W, and the inlet / outlet 55a1 of the processing chamber 55 is opened / closed by a shutter 55c driven by a motor (not shown), and the work W held by the robot 70 enters. It will be issued.
  • the traveling room 56 is a room (space) provided facing the entrance / exit 55a1 of the processing room 55.
  • the robot 70 can travel in the traveling chamber 56.
  • the adjacent traveling chambers 46 (or 56) form a continuous space over the entire length of the processing system 10 in the parallel direction.
  • the control device (module control device) 57 is a control device that drives and controls the spindle 52a, the spindle head moving device 53, and the like. As shown in FIG. 7, the control device 57 is connected to the input / output device 57a, the storage device 57b, the communication device 57c, the work table 54, the current sensors 52d, 53a2, 53b2, 53c2 and the servomotors 52c, 53a1, 53b1, 53c1. Has been done.
  • the control device 57 has a microcomputer (not shown), and the microcomputer includes an input / output interface, a CPU, a RAM, and a ROM (all not shown) connected via a bus.
  • the CPU executes various programs to acquire data from the input / output device 57a, the storage device 57b, the communication device 57c, and the current sensors 52d, 53a2, 53b2, 53c2, and the input / output device 57a, the spindle 52a (servo motor 52c). ) And the spindle head moving device 53 (servo motors 53a1, 53b1, 53c1).
  • the RAM temporarily stores the variables necessary for executing the program, and the ROM stores the program.
  • the input / output device 57a is provided on the front surface of the work equipment module 30 and functions in the same manner as the input / output device 47a.
  • the storage device 57b stores data related to the control of the drimill module 30B, for example, a control program (machining program), parameters used in the control program, data related to various settings and various instructions, load data, and the like.
  • the communication device 57c is a device similar to the communication device 47c.
  • the pre-machining stock module 30C is a module (work-injection module) for injecting the work W into the machining system 10.
  • the post-machining stock module 30D is a module (work discharge module) that stores and discharges a finished product that has completed a series of machining steps for the work W carried out by the machining system 10.
  • the inspection module 30E is a device (measurement device) that inspects (measures, measures) a work W processed upstream (for example, a work W during or after processing).
  • the temporary placement module 30F is for temporarily placing the work W in a series of machining steps by the machining system 10.
  • the inspection module 30E and the temporary installation module 30F have a traveling chamber (not shown) like the lathe module 30A and the drimill module 30B.
  • step S102 the control device 47 determines whether or not the lathe module 30A has been instructed to start machining (predetermined quantity) of the new work W.
  • the control device 47 determines that the instruction to start machining the work W has been given (“YES” in step S102), and steps the program. Proceed to S104. If the machining program for machining the work W has not been newly started, the control device 47 determines that there is no instruction to start machining the work W (“NO” in step S102), and determines that the work W has not been instructed to start machining.
  • the determination process of step S102 is repeatedly performed until there is a processing start instruction.
  • the control device 47 determines in step S104 whether or not there is an instruction to end the machining (predetermined quantity) of the work W that has been started earlier. When the machining program is completed, the control device 47 determines that the work W has been instructed to finish machining (“YES” in step S104), and ends this flowchart. If the machining program is not completed, the control device 47 determines that there is no instruction to finish machining the work W (“NO” in step S104), and advances the program to step S106.
  • step S106 the control device 47 performs machining of the work W according to the machining program.
  • the machining program includes a plurality of machining processes (machining small steps), and the control device 47 executes these machining processes in the order of the program.
  • the control device 47 detects the machining load, which is the physical quantity related to the machining of the work W and is the detectable physical quantity, as the actually detected actual detection data (detection unit).
  • the machining load is a load generated when the work W is cut (machined) by the cutting tool 43a, and is a physical quantity (machining resistance) that becomes resistance to machining.
  • the machining load is the force exerted by the work W and the cutting tool 43a (driven side) that generate machining resistance and the energy consumed on the driving side (in this embodiment, each servomotor described above). For example, the torque load applied to the drive shaft.
  • step S108 the control device 47 acquires the drive current of the servomotor 42d for driving the spindle 42a from the detected current sensor 42e, and from the detected current, the machining load of the servomotor 42d (torque load applied to the spindle 42a).
  • the machining load is derived as a machining load corresponding to the detected current by using a map or an arithmetic expression showing the correlation between the drive current and the machining load.
  • the X-axis machining load which is the machining load of the servomotor 44a2 and the Z-axis machining load which is the machining load of the servomotor 44b2 can also be derived.
  • the machining load is detected every predetermined short time (the sampling cycle of this embodiment is several msec (for example, 8 msec)).
  • the machining load is detected at a plurality of predetermined machining points in a series of machining programs (machining processes), and if the machining program is the same, the machining load is detected at the same machining point for each work W. Can be detected respectively.
  • the machining load is detected and stored for each machining point for each number of machining times.
  • the load data (sampling data) of the first work processing is indicated by a triangular mark as shown in FIG. 9A.
  • the first sampling data is connected by a solid line.
  • the sampling data of the second work processing is indicated by a square mark as shown in FIG. 9 (B).
  • the first sampling data is connected by a broken line
  • the second sampling data is connected by a solid line.
  • the upper and lower limits of the monitoring range are shown by a thick solid line.
  • each sampling data is arranged on a processing point (indicated by a broken line).
  • the machining point is, for example, an arbitrary machining place during the machining process, and may be a machining time, that is, an elapsed time from the machining start time.
  • the control device 47 stores the processing load (actual detection data) detected in step S110 in the storage device 47b as a series of load data.
  • the load data is stored at the machining point (at the sampling cycle interval) for each work W to be machined.
  • the processes of steps S106 to 110 described above are processes for sampling load data.
  • control device 47 sets the monitoring range for monitoring the state of the machining load along the machining process to the actual detection data actually detected by the process (detection unit) in step S108 during the operation of the machining process. It is set based on (step S116: setting unit). That is, the control device 47 automatically sets the monitoring range by performing the machining of the work W (work machining) N times and using the load data (actual detection data) for N times.
  • the monitoring range is a range for monitoring (determining) the state of the machining load (detectable physical quantity) along the machining process. If the load data is within the monitoring range, the machining load is in the normal state, and if it is outside the monitoring range, the machining load is in the abnormal state.
  • the monitoring range is the range from the monitoring start point at which monitoring starts to the monitoring end point at which monitoring ends in the direction along the machining process.
  • the monitoring range is a range defined by an upper limit value and a lower limit value in the direction along the magnitude of the machining load.
  • N is a natural number, and N times is set to several times to a dozen times.
  • the control device 47 performs the work machining from the first time to the Nth time, stores the load data for each work machining (determined as "NO” in steps S112 and 114, respectively), and for each work machining.
  • the monitoring range is set using the load data of (in steps S112 and 114, after determining "NO” and "YES", in step S116).
  • the control device 47 sets the upper limit value and the lower limit value of the monitoring range for each machining point.
  • the maximum value can be set as the upper limit value and the minimum value can be set as the lower limit value.
  • the maximum value of the load data at each processing point. is set as the upper limit value of the monitoring range
  • the minimum value of the load data is set as the lower limit value.
  • the upper limit value of the monitoring range is the first load data
  • the lower limit value is the second load data
  • the upper limit of the monitoring range is the second load data
  • the lower limit is the first load data.
  • the maximum value of the load data is set as the upper limit value of the monitoring range at each processing point, and the load data.
  • the minimum value is set as the lower limit value.
  • the upper limit of the fourth machining point to the right of the monitoring start point is considerably larger than the second load data as compared with the monitoring range shown in FIG. 9 (B). The point is different.
  • step S116 the upper and lower limit values of the monitoring range are set, and the flag F is set to 1.
  • the flag F is a flag indicating whether or not the monitoring range has been set by the load data for N times. When the flag F is "1", it indicates that the monitoring range has been set, and the flag F is "0". Indicates that the monitoring range has not been set. The flag F is set to "0" when the work processing start instruction is given.
  • step S112 it is determined whether or not the flag F is 1.
  • the control device 47 determines that the flag F is “0” and “NO” in step S112 from the start of machining the work W until the upper and lower limit values of the monitoring range are set.
  • the control device 47 sets the flag F to "1", determines "YES” in step S112, and omits the processes of steps S114 and 116.
  • the program is moved to step S124 or later.
  • step S114 it is determined whether or not the work machining, machining load detection, and load data storage described above have been performed N times.
  • the control device 47 determines that the work machining and the like have not been completed N times after the start of the first work machining and before the completion of the Nth work machining (“NO” in step S114. ”), The program is returned to step S104.
  • the control device 47 determines that the work machining and the like have been completed N times (“YES” in step S114), and advances the program to step S116.
  • the control device 47 examines whether it is necessary to adjust the upper and lower limit values of the monitoring range by using the acquired sampling data for N times and the monitoring range, and adjusts the upper and lower limit values of the monitoring range if necessary. Therefore, the upper and lower limit values of the monitoring range are reviewed (steps S118 to 122).
  • the control device 47 advances the program to step S118 and sets the load data (actual detection data) and the load data first in order to make the operator decide whether or not to adjust the upper and lower limit values of the monitoring range.
  • the adjusted monitoring range is displayed on the data display unit 110.
  • the above-mentioned "N times" is set to 3 times, and as shown in FIG. 9C, it has load data (sampling data) for 3 times and set upper and lower limit values.
  • the monitoring range is displayed on the data display unit 110.
  • the first sampling data is indicated by a triangle mark + broken line
  • the second sampling data is indicated by a square mark + one-dot chain line
  • the third sampling data is indicated by a circle mark + solid line.
  • the adjustment operation is to select the axis including the monitoring range that the operator wants to adjust, select the monitoring range that the operator wants to adjust, specify the range that the operator wants to adjust (adjustment range, specified range), or specify the range (adjustment range, specified range). As a result, it is an operation to expand / reduce the upper limit value of the monitoring range) and to expand / reduce the lower limit value of the specified range.
  • the operator when selecting the axis to be adjusted, the operator operates the display axis selection key 128.
  • the operator When selecting the monitoring range (small machining process) to be adjusted, the operator operates one of the display position movement key 129, the monitoring range left movement key 131, and the monitoring range right movement key 133.
  • the operator selects the adjustment (editing) range. Operate the start position designation key 134.
  • the operator operates the adjustment (edit) range end position specification key 135.
  • the operator When expanding the upper limit value, the operator operates the upper limit value expansion key 136 or the upper limit value maximization key 140. When reducing the upper limit value, the operator operates the upper limit value reduction key 137 or the upper limit value minimization key 141. When expanding the lower limit value, the operator operates the lower limit value expansion key 138 or the lower limit value minimization key 142. When reducing the lower limit value, the operator operates the lower limit value reduction key 139 or the lower limit value maximization key 143. When saving the edited monitoring range, the operator operates the save key 126.
  • control device 47 determines "NO" in step S120, and advances the program to step S124 or later.
  • control device 47 determines "YES” in step S120, and changes all or part of the upper and lower limit values of the monitoring range according to the adjustment operation.
  • the monitoring range after the change (adjusted) is displayed (step S122).
  • the control device 47 is set in step S122 by step S116 (setting unit) based on the actual detection data detected in step S108 (detection unit) for any part of the machining process.
  • the upper limit and / or lower limit of the monitoring range can be adjusted (adjustment unit).
  • the upper and lower limit values of the monitoring range after N times of workpiece machining greatly protrude upward at the fourth machining point from the right.
  • the fourth actual detection data of the third sampling data has a relatively large value.
  • the operator was able to confirm that the fourth actual detection data was actually abnormal data. In such a case, it is desirable not to reflect the fourth actual detection data, which is abnormal data, in the setting of the upper limit value. Therefore, the operator performs an adjustment operation in order to move the upper limit value of the fourth machining point downward.
  • the operator selects the monitoring range to be adjusted shown in FIG. 10 by operating any of the display position movement key 129, the monitoring range left movement key 131, and the monitoring range right movement key 133. do.
  • the operator specifies the start position of the adjustment range by operating the adjustment (edit) range start position designation key 134, and adjusts by operating the adjustment (edit) range end position designation key 135. Specify the end position of the range.
  • the operator narrows the upper limit value to the upper limit value of the third machining point, which is the minimum value between the start position and the end position, as shown in FIG. Reduce the upper limit.
  • step S122 when the actual detection data is abnormal data, the upper limit value of the monitoring range is set so that the monitoring range set by step S116 (setting unit) does not include the abnormal data. (And / or lower limit) can be adjusted.
  • control device 47 displays the initially set monitoring range in step S124. It is determined whether or not the load detection value, which is the machining load detected after that, is within the monitoring range.
  • control device 47 determines that the load detection value is within the monitoring range (“YES” in step S124)
  • the control device 47 returns the program to step S104, and performs a series of processes (monitoring range) of steps S104 to 112 described above. (Excluding settings) is carried out according to the machining program.
  • the control device 47 determines that the load detection value is not within the monitoring range (“NO” in step S124)
  • the control device 47 advances the program to step S126, and similarly to step S118 described above, the upper and lower limits of the monitoring range.
  • the load data actual detection data
  • the previously set or adjusted monitoring range are displayed on the data display unit 110.
  • the adjustment operation is performed in the same manner as described above. On the other hand, when it is considered unnecessary to adjust the monitoring range, the operator does not perform the adjustment operation.
  • step S1208 determines "NO" in step S128, advances the program to step S130 or later, stops machining of the work W (step S130), and issues a warning. It is issued (step S132), and this flowchart ends.
  • step S132 determines "YES” in step S128, changes the upper and lower limit values of the monitoring range according to the adjustment operation, and after the change (after adjustment). ) Is displayed (step S134).
  • step S134 the control device 47 is subjected to step S116 or 122 (setting unit) based on the actual detection data detected in step S108 (detection unit) for any part of the processing processes.
  • the upper limit and / or lower limit of the set monitoring range can be adjusted (adjustment unit).
  • the operator selects the monitoring range to be adjusted shown in FIG. 12 by operating any of the display position movement key 129, the monitoring range left movement key 131, and the monitoring range right movement key 133. do.
  • the operator specifies the start position of the adjustment range by operating the adjustment (edit) range start position designation key 134, and adjusts by operating the adjustment (edit) range end position designation key 135. Specify the end position of the range.
  • the operator by operating the upper limit value maximizing key 140, the operator reaches a value larger than the upper limit value of the fourth machining point, which is the minimum value between the start position and the end position, as shown in FIG. Expand, and eventually increase the upper limit.
  • step S134 adjustment unit
  • the upper limit of the monitoring range is included so that the monitoring range set by step S116 or 122 (setting unit) includes the normal data.
  • the value and / or lower limit can be adjusted.
  • machining (cutting) of the work W by the machine tool (drimill module 30B) described above can also be controlled according to the flowchart shown in FIG. 8 in the same manner as the lathe module 30A described above. In this case, the control is performed by the control device 57 instead of the control device 47.
  • the work processing device (lathe module 30A, drill mill module 30B) according to the above-described embodiment is a work processing device capable of executing the processing of the work W along the processing process by using the cutting tool 43a (machining tool).
  • the detection unit (control devices 47, 57: step S108) that detects the work load (detectable physical amount) that is the physical amount related to the machining of the work W and the state of the machining load along the machining process are displayed.
  • a setting unit (control devices 47, 57: steps S116, 122) for setting a monitoring range for monitoring (determination) based on actual detection data actually detected by step S108 during operation of the machining process, and machining.
  • step S116 is based on the actual detection data used in steps S116 and 122 (setting unit) and the actual detection data detected in step S108 (detection unit).
  • 122 is provided with an adjusting unit (control devices 47, 57: steps S122, 134) capable of adjusting the upper limit value and / or the lower limit value of the monitoring range set by 122.
  • the setting unit actually detects the monitoring range for monitoring the state of the machining load (detectable physical quantity) along the machining process of the workpiece, which is actually detected by the detection section during the operation of the machining process.
  • the adjusting unit has the actual detection data used in the setting unit and the actual detection data detected by the detection unit (at least detected by the detection unit) for any part of the processing processes. It is possible to adjust the upper limit value and / or the lower limit value of the monitoring range set by the setting unit based on the actual detection data).
  • sampling data actual measurement data
  • heterogeneous data data that is relatively different from other sampling data such as abnormal data
  • the threshold value upper and lower limit values
  • the adjusting unit can adjust the upper limit value and / or the lower limit value of the monitoring range so that the monitoring range set by the setting unit does not include the abnormal data. .. According to this, even when the monitoring range is set based on the actual detection data which is the abnormal data, the adjusting unit sets the upper limit value of the monitoring range and / / so that the monitoring range does not include the abnormal data. Alternatively, the lower limit can be adjusted. As a result, it is possible to reliably set a monitoring range that is not affected by abnormal data.
  • the adjusting unit can adjust the upper limit value and / or the lower limit value of the monitoring range so that the normal data is included in the monitoring range set by the setting unit. According to this, an appropriate monitoring range can be set based on the actual detection data which is the normal data that should be originally adopted when setting the upper and lower limit values of the monitoring range.
  • This flowchart is a subroutine (work processing execution subroutine) executed in step S106 described above, and the control device 47 executes processing according to this subroutine.
  • step S202 the control device 47 determines the life of the machining tool according to the tool life determination subroutine described later.
  • the control device 47 acquires the cutting instruction value in step S204, and acquires the load data in step S206.
  • the control device 47 determines in step S208 whether or not the cutting instruction value needs to be corrected. Specifically, the control device 47 monitors by comparing the previously set monitoring range divided into a plurality of division ranges (shown in FIG. 14) with the actually detected data which is the load data acquired earlier. It is determined whether or not the cutting instruction value needs to be corrected according to the positional relationship of the actual detection data with respect to the range and the division range.
  • the monitoring range set earlier is preferably the one at the beginning of use of the machining tool.
  • the monitoring range is divided (equally divided) into five along the vertical direction between the upper limit value and the lower limit value, and the first division range (the first division range (equally divided) is located at the center of the monitoring range in the vertical direction.
  • "OK" category range) the second category range
  • (+ OK1" category range provided above the first category range
  • the third category range (“+ OK2” category range)
  • below the first category range It is composed of a fourth division range (“-OK1” division range) and a fifth division range (“-OK2” division range).
  • the machining load is monitored when the cutting tool 43a is worn. It is located above the center of the range in the vertical direction.
  • the inner wall surface of the rotating work W is machined by the cutting tool 43a (that is, when the cutting tool 43a is brought into contact with the cutting tool 43a in a direction away from the rotation axis of the work W)
  • the machining load is applied. It is located below the center of the monitoring range in the vertical direction. Further, as the wear of the cutting tool 43a increases, the machining load increases, so that the correction amount is set larger as the machining load moves away from the center of the monitoring range in the vertical direction.
  • the correction amount is 0 (zero). Yes, when the division range is the "+ OK1" division range, the correction amount is -0.1 mm, and when the division range is the "+ OK2" division range, the correction amount is -0.2 mm.
  • the correction amount is +0.1 mm, and when the division range is the "-OK2" division range, the correction amount is +0.2 mm.
  • the control device 47 If the actual detection data is out of the monitoring range, the control device 47 basically considers that there is an abnormality in the machining load, does not perform workpiece machining, and does not need to correct the cutting instruction value. Therefore, the control device 47 corrects the cutting instruction value. Is determined to be unnecessary. Further, when the actual detection data is within the monitoring range and within the "OK" classification range, the control device 47 corrects the cutting instruction value because the cutting tool 43a is hardly worn (relatively small). Is determined to be unnecessary. On the other hand, when the actual detection data is within the monitoring range and outside the "OK" classification range, the control device 47 has a considerable amount of wear (relatively large) of the cutting tool 43a, so that the cutting instruction value is set. It is determined that correction is necessary.
  • step S208 the program proceeds to step S214, and the work W is set to the uncorrected cutting instruction value. Cut (process). After that, the control device 47 ends this subroutine and advances the program to step S108 shown in FIG.
  • step S210 the program proceeds to step S210 or later, and the cutting instruction value is corrected (changed). do. That is, the control device 47 compares the actual detection data detected during the machining process by step S108 (detection unit) with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of divisions according to the comparison result. , The correction amount (and thus the cutting instruction value) of the cutting instruction value for the cutting tool 43a, which is the set value set for controlling the work machining and is the setting value for controlling the wear of the cutting tool 43a, is changed (by extension, the cutting instruction value). Change part, steps S210,212)
  • the control device 47 calculates the correction amount of the cutting instruction value in step S210. Specifically, the control device 47 uses the correlation between the division range and the correction amount to calculate the correction amount corresponding to the division range in which the load data acquired in step S206 is located. The control device 47 corrects (changes) the cutting instruction value according to the calculated correction amount in step S212. Then, the control device 47 advances the program to step S214, and cuts (processes) the work W with the corrected cutting instruction value. After that, the control device 47 ends this subroutine and advances the program to step S108 shown in FIG.
  • the work processing device described above controls processing according to the comparison result of comparing the actual detection data detected during the processing process by the detection unit and the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It is further provided with a change unit (control devices 47, 57: steps S210, 212) for changing the control set value related to the wear of the cutting tool 43a, which is the set value set for the above. According to this, the changing unit can easily and appropriately change the control setting value according to the comparison result of comparing the actual detection data with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It will be possible. As a result, it becomes possible to easily and appropriately control the machining of the work.
  • the control set value is a cutting instruction value for the cutting tool 43a.
  • the changing unit sets the cutting instruction value for the machining tool, which is the control set value, according to the comparison result of comparing the actual detection data with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It can be changed. As a result, it becomes possible to easily and appropriately perform cutting correction for workpiece machining.
  • Patent Document Japanese Unexamined Patent Publication No. 2005-324316
  • a measuring unit measures the characteristics of the processed optical component.
  • the processing information generation unit discloses an optical component processing system in which processing information is corrected based on the measurement information and specification information, and the processing apparatus processes an optical component (workpiece) according to the corrected processing information. ..
  • the processing information for processing the work is corrected based on the measurement information measured by the measuring unit, and the processing system including the work processing device is the part of the measuring unit.
  • the work processing apparatus disclosed in the present specification can easily and appropriately control the processing of the work without inviting an increase in size and cost of the processing system.
  • Appendix 1 It is a work processing device that can perform machining of workpieces along the machining process using machining tools.
  • a detection unit that detects a detectable physical quantity that is a physical quantity related to the machining of the work
  • a setting unit that sets a monitoring range for monitoring the state of the detectable physical quantity along the processing process based on actual detection data actually detected by the detection unit during operation of the processing process.
  • a change part that changes the control set value related to the wear of the machining tool, which is the set value set in Work processing equipment equipped with.
  • Appendix 2 The work processing apparatus according to Appendix 1, wherein the control set value is a cutting instruction value for the processing tool.
  • the change unit sets the control setting value according to the comparison result of comparing the actual detection data with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It is possible to change it easily and appropriately. As a result, it becomes possible to easily and appropriately control the machining of the work.
  • the change unit uses the control set value according to the comparison result of comparing the actual detection data with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It is possible to change the cutting instruction value for a certain machining tool. As a result, it becomes possible to easily and appropriately perform cutting correction for workpiece machining.
  • This flowchart is a subroutine (tool life determination subroutine) executed in step S202 described above, and the control device 47 executes processing according to this subroutine.
  • the control device 47 acquires the cutting tool counter and the determination threshold value in step S302, and acquires the load data in step S304.
  • the cutting tool counter is a value indicating the number of times the predetermined cutting tool (for example, the cutting tool 43a) is used (the number of the work W cut), and is counted up by 1 each time the machining of the work W is completed.
  • the determination threshold value is a value for determining the life of the cutting tool 43a (machining tool), and is a control set value related to wear of the cutting tool 43a.
  • the control device 47 determines in step S306 whether or not the determination threshold value needs to be changed. Specifically, the control device 47 monitors by comparing the previously set monitoring range divided into a plurality of division ranges (shown in FIG. 16) with the actually detected data which is the load data acquired earlier. It is determined whether or not the determination threshold value needs to be changed according to the positional relationship of the actual detection data with respect to the range and the division range.
  • the monitoring range set earlier is preferably the one at the beginning of use of the machining tool.
  • the monitoring range is divided (equally divided) into five along the vertical direction between the upper limit value and the lower limit value, and the first division range (the first division range (equally divided) is located at the center of the monitoring range in the vertical direction.
  • "OK" category range) the second category range
  • (+ OK1" category range provided above the first category range
  • the third category range (“+ OK2” category range)
  • below the first category range It is composed of a fourth division range (“-OK1” division range) and a fifth division range (“-OK2” division range).
  • the machining load is monitored when the cutting tool 43a is worn. It is located above the center of the range in the vertical direction.
  • the inner wall surface of the rotating work W is machined by the cutting tool 43a (that is, when the cutting tool 43a is brought into contact with the cutting tool 43a in a direction away from the rotation axis of the work W)
  • the cutting tool 43a is worn, the machining load is applied. It is located below the center of the monitoring range in the vertical direction. Further, as the wear of the cutting tool 43a increases, the remaining tool life becomes shorter and the machining load increases. Therefore, as the machining load moves away from the center of the monitoring range in the vertical direction, the amount of change in the determination threshold value (hereinafter, simply the amount of change) In some cases,) is set to a large value.
  • the change amount is 0 (zero).
  • the change amount is N1
  • the division range is the "+ OK2" division range or the "-OK2” division range.
  • the amount of change is N2, which is larger than N1.
  • the control device 47 basically does not perform workpiece machining because there is an abnormality in the machining load and does not need to correct the judgment threshold value, so that the judgment threshold value does not need to be changed. Is determined to be. Further, in the control device 47, when the actual detection data is within the monitoring range and within the "OK" classification range, the cutting tool 43a is hardly worn (relatively small), so that the determination threshold value is not changed. Judge that it is unnecessary. On the other hand, when the actual detection data is within the monitoring range and outside the "OK" classification range, the control device 47 changes the determination threshold value because the cutting tool 43a has a considerable amount of wear (relatively large). Determines that it is necessary.
  • control device 47 determines that it is not necessary to change the determination threshold value (determines "NO” in step S306), the control device 47 advances the program to step S312, and advances the program to step S312, and the determination threshold value that has not been changed with the previously acquired cutting tool counter.
  • the life of the cutting tool 43a is determined by comparing with.
  • the control device 47 determines that the cutting tool 43a has reached the end of its life (determines "YES" in step S312), advances the program to step S314, and the cutting tool 43a has reached the end of its life. Warn that it is.
  • the control device 47 determines that the cutting tool 43a has not reached the end of its life (determines "NO" in step S312), advances the program to step S316, and cuts. No warning is given that the tool 43a has reached the end of its life. After that, the control device 47 ends this subroutine and advances the program to step S204 shown in FIG.
  • control device 47 determines that the determination threshold value needs to be changed (determined as "YES” in step S306), the control device 47 advances the program to step S308 or later and changes the determination threshold value. That is, the control device 47 compares the actual detection data detected during the machining process by step S108 (detection unit) with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of divisions according to the comparison result. , The determination threshold value for determining the life of the cutting tool 43a, which is the set value set for controlling the work machining and is the set value for controlling the wear of the cutting tool 43a (changed part, step). S308, 310)
  • the control device 47 calculates the amount of change in the determination threshold value in step S308. Specifically, the control device 47 uses the correlation between the division range and the change amount (correction amount corresponding to the division range) to set the division range in which the load data acquired in step S304 is located. Calculate the corresponding change amount. The control device 47 changes the determination threshold value according to the calculated change amount in step S310. For example, the changed judgment threshold can be calculated and stored by subtracting the change amount from the previously acquired judgment threshold. Then, the control device 47 advances the program to step S312, and in the same manner as described above, compares the current cutting tool counter with the changed determination threshold value to determine the life of the cutting tool 43a.
  • the judgment threshold value is used as the control setting value, but the cutting tool counter may be used as the control setting value.
  • the cutting tool counter indicates the number of times the cutting tool 43a has been used.
  • the change target is the cutting tool counter instead of the determination threshold value
  • the change amount calculated in step S308 is the change amount of the cutting tool counter instead of the judgment threshold value.
  • the changed cutting tool counter can be calculated by adding the changed amount to the acquired cutting tool counter.
  • the life of the cutting tool 43a is determined by comparing the unchanged cutting tool counter or the changed cutting tool counter with the determination threshold value.
  • the work processing device described above controls processing according to the comparison result of comparing the actual detection data detected during the processing process by the detection unit and the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges.
  • a changing unit (control devices 47, 57: steps S308, 310) for changing the control set value related to the wear of the cutting tool 43a, which is the set value set for the above, is provided.
  • the change unit can easily and appropriately set the control setting value according to the comparison result of comparing the actual detection data with the correction amount (change amount) corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It can be changed. As a result, it becomes possible to easily and appropriately control the machining of the work.
  • control set value is a determination threshold value for determining the life of the cutting tool 43a.
  • the change unit compares the actual detection data with the correction amount (change amount) corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It is possible to change the determination threshold value for determining the life. As a result, it becomes possible to easily and appropriately determine the life of the machining tool.
  • the patent document Japanese Unexamined Patent Publication No. 7-51867 describes the tool life based on the comparison between the initial data of each state quantity of the cutting tool and the detection data at a predetermined time. The one making the judgment is disclosed.
  • the wear state of the tool for example, wear rate
  • the work processing apparatus disclosed in the present specification can perform a simple and appropriate life determination according to the wear state of the tool.
  • Appendix 3 It is a work processing device that can perform machining of workpieces along the machining process using machining tools.
  • a detection unit that detects a detectable physical quantity that is a physical quantity related to the machining of the work
  • a setting unit that sets a monitoring range for monitoring the state of the detectable physical quantity along the processing process based on actual detection data actually detected by the detection unit during operation of the processing process.
  • a change part that changes the control set value related to the wear of the machining tool, which is the set value set in Work processing equipment equipped with.
  • Appendix 4 The work processing apparatus according to Appendix 3, wherein the control set value is a determination threshold value for determining the life of the processing tool.
  • the change unit sets the control setting value according to the comparison result of comparing the actual detection data with the correction amount corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It is possible to change it easily and appropriately. As a result, it becomes possible to easily and appropriately control the machining of the work.
  • the change unit controls according to the comparison result of comparing the actual detection data and the correction amount (change amount) corresponding to the division range in which the monitoring range is divided into a plurality of division ranges. It is possible to change the determination threshold value (threshold value for determining the life of the machining tool), which is the set value for use. As a result, it becomes possible to easily and appropriately determine the life of the machining tool.
  • the machining load is detected, the monitoring range is set, and the monitoring range is adjusted during the operation of the machining process of the work W.
  • the test run of the workpiece machining is performed before the machining process. It may be carried out, the machining load may be detected during the trial run, the monitoring range may be set, and the monitoring range may be adjusted during the trial run or the machining process.
  • the setting unit described above sets the monitoring range for monitoring the state of the detectable physical quantity along the processing process to the actual detection data actually detected by the detection unit during the trial run of the processing process. Set based on.
  • the cutting tool is used as the machining tool, but another machining tool for machining the work W may be used.
  • the machining load is used as the detectable physical quantity, another physical quantity related to the machining of the work W, which is a detectable physical quantity, may be used.

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  • Numerical Control (AREA)

Abstract

La présente invention concerne un appareil de traitement de pièces à travailler permettant le traitement d'une pièce à travailler à l'aide d'un outil de traitement pendant des étapes de traitement, l'appareil de traitement de pièces à travailler comprenant : une unité de détection qui détecte une quantité physique détectable qui est une quantité physique liée au traitement d'une pièce à travailler et qui est détectable; une unité de détermination qui définit une plage de surveillance pour la surveillance (détermination) d'un état de la quantité physique détectable pendant les étapes de traitement, à partir de données réelles détectées par l'unité de détection pendant le déroulement des étapes de traitement; et une unité de détermination qui peut déterminer, par rapport à une partie arbitraire des étapes de traitement, une valeur limite supérieure et/ou une valeur limite inférieure de la plage de surveillance déterminée par l'unité de détermination, à partir des données détectées réelles qui sont détectées par l'unité de détection.
PCT/JP2020/013197 2020-03-25 2020-03-25 Appareil de traitement de pièces à travailler WO2021192071A1 (fr)

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PCT/JP2020/013197 WO2021192071A1 (fr) 2020-03-25 2020-03-25 Appareil de traitement de pièces à travailler
JP2022509863A JP7426476B2 (ja) 2020-03-25 2020-03-25 ワーク加工装置

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CN116967817A (zh) * 2023-07-26 2023-10-31 南通旭志精工科技有限公司 一种基于大数据的机床控制柜远程安全监控系统

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JPH08323584A (ja) * 1995-06-05 1996-12-10 Murata Mach Ltd 工具の摩耗補正装置
WO2013103435A1 (fr) * 2012-01-03 2013-07-11 The Boeing Company Appareil et procédés de production d'une surface ayant une émissivité réglable
WO2014068644A1 (fr) * 2012-10-29 2014-05-08 富士機械製造株式会社 Dispositif de définition d'intervalle de contrôle automatique, machine-outil et procédé de définition d'intervalle de contrôle automatique
JP2014172102A (ja) * 2013-03-06 2014-09-22 Fuji Mach Mfg Co Ltd 工具異常判別システム
JP2017205826A (ja) * 2016-05-17 2017-11-24 株式会社リコー 情報処理装置、情報処理方法、および情報処理システム
WO2020021044A1 (fr) * 2018-07-25 2020-01-30 Zwerger Michael Procédé de surveillance d'une machine-outil, dispositif de surveillance, machine-outil et produit programme informatique

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WO2013108435A1 (fr) 2012-01-19 2013-07-25 富士機械製造株式会社 Système de détermination de défaut d'outil

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JPH08323584A (ja) * 1995-06-05 1996-12-10 Murata Mach Ltd 工具の摩耗補正装置
WO2013103435A1 (fr) * 2012-01-03 2013-07-11 The Boeing Company Appareil et procédés de production d'une surface ayant une émissivité réglable
WO2014068644A1 (fr) * 2012-10-29 2014-05-08 富士機械製造株式会社 Dispositif de définition d'intervalle de contrôle automatique, machine-outil et procédé de définition d'intervalle de contrôle automatique
JP2014172102A (ja) * 2013-03-06 2014-09-22 Fuji Mach Mfg Co Ltd 工具異常判別システム
JP2017205826A (ja) * 2016-05-17 2017-11-24 株式会社リコー 情報処理装置、情報処理方法、および情報処理システム
WO2020021044A1 (fr) * 2018-07-25 2020-01-30 Zwerger Michael Procédé de surveillance d'une machine-outil, dispositif de surveillance, machine-outil et produit programme informatique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116967817A (zh) * 2023-07-26 2023-10-31 南通旭志精工科技有限公司 一种基于大数据的机床控制柜远程安全监控系统

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