WO2021167014A1 - 工作機械の制御装置 - Google Patents

工作機械の制御装置 Download PDF

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Publication number
WO2021167014A1
WO2021167014A1 PCT/JP2021/006169 JP2021006169W WO2021167014A1 WO 2021167014 A1 WO2021167014 A1 WO 2021167014A1 JP 2021006169 W JP2021006169 W JP 2021006169W WO 2021167014 A1 WO2021167014 A1 WO 2021167014A1
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WO
WIPO (PCT)
Prior art keywords
condition
swing
machine tool
rocking
control device
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/JP2021/006169
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English (en)
French (fr)
Japanese (ja)
Inventor
健太 山本
将司 安田
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
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 Fanuc Corp filed Critical Fanuc Corp
Priority to US17/904,685 priority Critical patent/US12491595B2/en
Priority to CN202180015062.8A priority patent/CN115104073B/zh
Priority to DE112021001156.1T priority patent/DE112021001156T5/de
Priority to JP2022501980A priority patent/JP7522180B2/ja
Publication of WO2021167014A1 publication Critical patent/WO2021167014A1/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
    • B23Q15/013—Control or regulation of feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B25/00—Accessories or auxiliary equipment for turning-machines
    • B23B25/02—Arrangements for chip-breaking in turning-machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
    • 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
    • G05B19/4093—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 part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part program, for the NC 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
    • 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
    • G05B19/4097—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 using design data to control NC machines, e.g. CAD/CAM
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49055—Remove chips from probe, tool by vibration
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49382—Movement reciprocating
    • 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
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49384—Control of oscillatory movement like filling a weld, weaving

Definitions

  • This disclosure relates to a machine tool control device.
  • the frequency parameter (frequency or frequency magnification; hereinafter the same) and the amplitude parameter (amplitude or oscillating magnification; hereinafter the same) of the oscillating command can be shredded so that chips can be shredded.
  • the current situation is that it takes time because the conditions are set and decided.
  • the frequency parameter and the amplitude parameter of the desired swing command capable of shredding chips can be quickly determined in the control device of the machine tool that executes the swing cutting.
  • One aspect of the present disclosure is a control device for a machine tool that processes a tool and a work while relatively swinging, a swing command calculation unit that calculates a swing operation command, and the swing.
  • a first swing condition determining unit that determines one of a frequency parameter consisting of the command frequency or frequency magnification and an amplitude parameter consisting of the amplitude or amplitude magnification of the swing command as the first swing condition, and the first swing condition determination unit.
  • a second swing condition calculation unit that calculates the other of the frequency parameter and the amplitude parameter as the second swing condition based on the first swing condition determined by the swing condition determination unit is provided. It is a control device for machine tools.
  • the present disclosure by using the correlation between the frequency parameter and the amplitude parameter, it is possible to provide a machine tool control device capable of quickly determining the frequency parameter and the amplitude parameter of a desired rocking command capable of shredding chips.
  • FIG. 1 is a diagram showing a cutting process according to an embodiment of the present disclosure.
  • the machine tool control device has at least one spindle S for relatively rotating the cutting tool T and the work W, and the cutting tool T relative to the work W.
  • the work W is cut by the cutting tool T by operating at least one feed shaft to be moved.
  • FIG. 1 shows an example in which the cutting tool T is moved in the feed direction Z by the feed shaft to perform cutting on the outer peripheral surface of the columnar work W rotated by the spindle S.
  • the cutting tool T and the work W are relatively rotated, and the cutting tool T and the work W are relatively swung in the feed direction Z. , Chips that are continuously generated by cutting can be shredded. Chips become entangled with the cutting tool T during machining and cause machining defects, chocolate stoppage, mechanical failure, etc., which can be avoided in the present embodiment.
  • the tool path P which is the locus of the cutting tool T
  • the portion processed in the previous route is set to be included in the current route.
  • the phase of the mountain portion with respect to the feed direction Z of the previous route matches the phase of the valley portion of the current route, and the portion processed in the previous route is included in the current route. Is set to. Therefore, a missed swing C (air cut) occurs in which the cutting edge of the cutting tool T is separated from the surface of the work W. This ensures that the chips are shredded.
  • FIG. 2 is a functional block diagram of the machine tool control device 1 according to the first embodiment of the present disclosure.
  • the machine tool control device 1 according to the present embodiment is configured to include a servo control device 10, and drives and controls a motor 30 that drives a feed shaft.
  • the machine tool control device 1 includes a swing command generation unit 11, a motor control unit 12, an adder 13, an input unit 14, a display unit 15, and the display unit 15. To be equipped.
  • the machine tool control device 1 generates a drive command for the motor 30 from a machining program.
  • the generated drive command (position command, etc.) is input to the adder 13 of the servo control device 10 described later, as shown in FIG.
  • tool information and tool operation information are set by a CAM system (not shown) for a machining shape created by a CAD system (not shown). It is created by being done.
  • the swing command generation unit 11 generates a swing command that swings the cutting tool T and the work W relatively in the feed direction Z.
  • the generated swing command is input to the adder 13 described later.
  • the swing command generation unit 11 includes a first swing condition determination unit 111, a second swing condition calculation unit 112, and a swing command calculation unit 113.
  • the first swing condition determination unit 111 performs the first swing of one of the frequency parameter consisting of the frequency or the frequency magnification constituting the swing command and the amplitude parameter consisting of the amplitude or the amplitude magnification also constituting the swing command. Determined as a dynamic condition.
  • the second swing condition calculation unit 112 calculates the other as the second swing condition by using the correlation between the frequency parameter and the amplitude parameter. As a result, it is possible to shorten the time for setting the conditions, which has been confirmed while setting each one in the past.
  • the first swing condition determining unit 111 has a first swing condition determination unit 111 based on at least one of the chip length, the surface roughness of the work W, the swing width, and the upper limit value of the first swing condition. 1 It is preferable to determine the swing condition.
  • a method of determining the first swing condition based on each of the chip length, the surface roughness, the swing width, and the upper limit value of the first swing condition will be described with reference to an example.
  • the first rocking condition determination unit 111 determines the frequency magnification as the first rocking condition based on the length of the chips.
  • the following mathematical formula (1-1) is used.
  • I represents the frequency magnification (times)
  • D represents the diameter of the work W (mm)
  • L represents the length of the chips (mm).
  • the diameter D of the work W can be obtained from the coordinate values of the tools positioned in the radial direction of the work during machining.
  • the frequency magnification I can be obtained. It is also possible to obtain the frequency as the first swing condition from the desired chip length L by using the mathematical formula (2-2) described later that defines the relationship between the frequency magnification and the frequency.
  • the first rocking condition determining unit 111 determines the frequency magnification as the first rocking condition based on the surface roughness
  • the maximum value of the surface roughness according to the frequency magnification is used as a table. It may be held and the frequency magnification may be determined from the desired surface roughness.
  • the variation in the surface roughness for each work phase may be obtained as a standard deviation, and the relationship between the standard deviation and the frequency magnification may be held as a table.
  • variations in surface roughness during cutting with rocking will be described with reference to FIGS. 3 and 4.
  • 3 and 4 are diagrams showing an example and another example of the relationship between the spindle phase and the position of the cutting tool T.
  • the frequency magnification I as the first swing condition is 1.5 times
  • the amplitude magnification K as the second swing condition calculated from the mathematical formula (2-1) described later is The relationship between the spindle phase and the position of the cutting tool T at 1.0 times is shown. Further, in FIG.
  • the frequency magnification I as the first swing condition is 1.2 times
  • the amplitude magnification K as the second swing condition calculated from the mathematical formula (2-1) described later is 1.701.
  • the relationship between the spindle phase and the position of the cutting tool T at the time of doubling is shown.
  • the phase of each rotation of the spindle is shifted by half a cycle, so that the phase of the peak portion in the previous tool path is the phase of the valley portion in the current tool path in a specific spindle phase.
  • the specific phase for example, in the vicinity of the spindle phase of 120 °, the change in the feed amount for each rotation of the spindle becomes large.
  • the unevenness of the work surface becomes large due to the influence of the corner radius of the tool tip and the like, and the surface roughness becomes large.
  • the feed amount for each rotation of the spindle is always constant, and the surface roughness becomes small. In such a case, the variation in surface roughness becomes large depending on the phase of the spindle.
  • the spindle phase in which the feed amount increases with each rotation of the spindle is not constant.
  • the variation in surface roughness according to the spindle phase becomes small. Since the variation in surface roughness may affect the roundness of the processed work, the first swing condition may be determined by the variation in surface roughness.
  • the frequency and amplitude of the rocking operation have a range that can be operated according to the machine tool.
  • the first swing condition may be determined by clamping at an upper limit value for a desired frequency or amplitude.
  • the second swing condition calculation unit 112 calculates the other of the frequency parameter and the amplitude parameter as the second swing condition based on the first swing condition determined by the first swing condition determination unit 111 described above. do. Further, the second swing condition calculation unit 112 calculates the second swing condition based on the first swing condition and either the number of tools or the number of blades.
  • the second swing condition calculation unit 112 calculates the second swing condition using the following mathematical formulas (2-1), (2-2) and (2-3).
  • I is the frequency magnification (times)
  • K is the amplitude magnification (times)
  • n is the number of tools or the number of blades of the tools.
  • I' represents the vibration frequency (Hz)
  • S represents the spindle speed (minutes- 1 )
  • K' represents the amplitude (mm)
  • F represents the feed rate (mm / rotation).
  • the frequency magnification I 1, it means that the main shaft swings once with one rotation.
  • amplitude magnification K is 1, it means that the amplitude is the same as the feed amount (movement amount in the feed direction) per rotation of the spindle.
  • the value of one of the frequency and the frequency magnification can be calculated from the value of the other by the above formula (2-2).
  • the other value can be calculated from one value of the amplitude and the amplitude magnification by the above mathematical formula (2-3). Therefore, the second swing condition can be calculated based on the first swing condition by using the relationship between these formulas (2-2) and (2-3) and the formula (2-1).
  • the second swing condition calculation unit 112 calculates the amplitude parameter as the second swing condition including the margin based on the runout of the cutting tool T and the runout of the work W. Since the cutting edge (machine tip) and work W of the cutting tool T bend and swing due to swinging, by calculating the amplitude parameter including the margin based on the swinging, the missed swing C is surely generated and the chips are finely divided. It is possible to decline.
  • the frequency parameter and the amplitude parameter of the swing command must be finally determined according to the cutting process, and therefore must be set by the machine tool user.
  • the machine tool designer sets the upper limit value of the machine tool and the margin of the machine tool. Then, the user automatically determines the first swing condition and the second swing condition by setting conditions such as the diameter of the work W, the hole diameter in the drilling and cutting process, and the length of chips. , Swinging cutting can be easily performed.
  • the machine designer sets an amplitude magnification K1 corresponding to a margin based on the runout of the cutting edge and the work W so that chips can be shredded under swing conditions near the upper limit of the machine.
  • the upper limit of the machine tool is also set.
  • the frequency magnification I as the first swing condition is determined from the input value to the control device 1 of the machine tool by the user, the upper limit value of the machine, and the like.
  • the swing command calculation unit 113 has a first swing condition determined by the first swing condition determination unit 111 and a second swing condition calculated by the second swing condition calculation unit 112. Based on, the swing command is calculated.
  • the swing command calculation unit 113 synchronizes the phase of the swing command with the phase of the spindle that relatively rotates the cutting tool T and the work W, so that the phase of the swing command is deviated from the phase of the spindle. It disappears. As a result, chips can be reliably shredded even under the first swing condition and the second swing condition calculated by using the correlation between the frequency parameter and the amplitude parameter.
  • the adder 13 generates a superposition command. Specifically, the adder 13 refers to the integrated value of the position deviation, which is the difference between the position feedback based on the position detection by the encoder provided in the motor 30 of the feed shaft (not shown) and the above-mentioned position command.
  • the superimposition command is generated by adding (superimposing) the rocking command generated by the above-mentioned rocking command generation unit 11.
  • the motor control unit 12 generates a torque command for the motor 30 that drives the feed shaft based on the superposition command generated by the adder 13 described above, and controls the motor 30 by the generated torque command. As a result, the motor 30 that drives the feed shaft reaches the command position with rocking.
  • the input unit 14 includes various parameters required for the first rocking condition determination unit 111 to determine the first rocking condition, various parameters required for the second rocking condition calculation unit 112 to calculate the second rocking condition, which will be described later. It is an input unit in which at least one of the priority condition and the margin to be input can be input. Specifically, the input unit 14 uses the variables in the above equations (2-1), (2-2) and (2-3), chip length, surface roughness, swing width, and first swing. It is possible to enter the upper limit of the dynamic condition, the priority condition described later, the margin, and the like. The input value input by the user via the input unit 14 enables the determination of the first swing condition and the calculation and determination of the second swing condition.
  • the display unit 15 has an input value input by the input unit 14, a first swing condition determined by the first swing condition determination unit 111, and a second swing calculated by the second swing condition calculation unit 112. It is a display unit capable of displaying at least one of various specifications determined from the conditions, the first rocking condition and the second rocking condition.
  • the various specifications include chip length, surface roughness, variation in surface roughness, swing width, machine tool operation parameters, and the like.
  • the display on the display unit 15 makes it easy for the user to set and confirm the swing condition.
  • FIG. 5 is a functional block diagram of the machine tool control device 1A according to the second embodiment of the present disclosure.
  • the machine tool control device 1A according to the second embodiment has a swing command generation unit 11A and a servo as compared with the machine tool control device 1 according to the first embodiment described above.
  • the configuration is the same except that the configuration of the control device 10A is different.
  • the upper limit determination unit that changes the first swing condition based on at least one of the upper limit value of the second swing condition and the upper limit value of the operation parameter of the machine tool. 114 is provided.
  • the second swing condition calculated from the first swing condition is the upper limit value determined from the operation upper limit of the machine tool. Clamp the condition. When the clamp is applied, the second swing condition and the first swing condition are calculated back from the above mathematical formula (2-1). The finally determined first swing condition and second swing condition are notified to the swing command calculation unit 113.
  • Machine tool operating parameters include, for example, feed rate and feed acceleration.
  • the maximum feed rate and maximum acceleration are calculated using the following formulas (3-1) to (3-5).
  • Y is a movement command (position command)
  • F is a feed rate (mm / rotation)
  • S is a spindle speed (minute- 1 )
  • I is.
  • the frequency magnification (times) and K represent the amplitude magnification (times).
  • the amplitude magnification K and frequency magnification I which correspond to the second swing condition, are limited so that the maximum feed rate and the maximum acceleration calculated using the above formulas (3-1) to (3-5) do not exceed the upper limit values. ..
  • the above mathematical formulas (2-2) and (2-3) are used for conversion to the swing amplitude and swing frequency.
  • FIG. 6 is a functional block diagram of the machine tool control device 1B according to the third embodiment of the present disclosure.
  • the machine tool control device 1B according to the third embodiment controls the machine tool control device 1 according to the first embodiment and the machine tool control device 1B according to the second embodiment.
  • the configuration is the same as that of the apparatus 1A except that the configurations of the swing command generation unit 11B and the servo control device 1B are different.
  • at least one of chip length, surface roughness, frequency parameter, amplitude parameter, machine tool operation parameter, or various specifications determined from these is set as a priority condition.
  • the optimum condition determination unit 115 is provided.
  • the various specifications are, for example, the width of the swing, the variation in surface roughness, and the like.
  • the optimum condition determination unit 115 notifies the first rocking condition determination unit 111 of the first rocking condition in order to calculate the corresponding second rocking condition from the first rocking condition within a predetermined range. Based on the notification, the first swing condition determination unit 111 and the second swing condition calculation unit 112 determine the first swing condition and the second swing condition. The optimum condition determination unit 115 calculates the priority condition based on the first swing condition and the second swing condition. At the same time, it is confirmed whether the upper limit values of all the conditions including the priority conditions are satisfied. The priority conditions are confirmed for the first swing condition within a predetermined range, and the first swing condition and the second swing condition that satisfy the upper limit values of all the conditions and minimize the priority condition are rocked. Notify the command calculation unit 113.
  • the swing command is calculated from the first swing condition and the second swing condition, and the maximum feed acceleration under the command is calculated. At the same time, check whether the upper limit values of all the conditions including the feed acceleration are exceeded, and record only when all the upper limit values are satisfied.
  • the first swing condition is gradually lowered from the upper limit value, and confirmation is continued until the upper limit values of all the conditions cannot be satisfied.
  • the swing command calculation unit 113 is notified of the first swing condition and the second swing condition in which the feed acceleration is the smallest.
  • FIG. 7 is a flowchart showing a cutting procedure according to the embodiment of the present disclosure.
  • step S1 the first swing condition is determined.
  • the first swing condition one of the frequency parameter and the amplitude parameter is selected.
  • step S2 the second rocking condition is calculated based on the first rocking condition determined in step S1.
  • the second swing condition the other of the frequency parameter and the amplitude parameter is selected. That is, of the frequency parameter and the amplitude parameter, the other that was not selected as the first swing condition in step S2 is calculated.
  • step S3 the swing command is calculated based on the first swing condition determined in step S1 and the second swing condition calculated in step S2.
  • step S4 the superposition command is generated by superimposing the swing command calculated in step S3 on the position command. Then, the motor 30 that drives the feed shaft is driven and controlled by the generated superimposition command. This is the end of this process.
  • one of the frequency parameter consisting of the frequency or frequency magnification of the swing command and the amplitude parameter consisting of the amplitude or amplitude magnification of the swing command is determined as the first swing condition.
  • a swing condition determination unit 111 is provided.
  • the second swing condition calculation unit 112 that calculates the other of the frequency parameter and the amplitude parameter as the second swing condition based on the first swing condition determined by the first swing condition determination unit 111. was provided.
  • the frequency parameter and the amplitude parameter are correlated with each other, in the embodiment of the present disclosure, one is determined under a certain condition and then the other is calculated and determined, thereby shortening the time for setting the condition, which has been conventionally performed. can. Therefore, according to the embodiments of the present disclosure, it is possible to quickly determine the frequency parameter and the amplitude parameter of the desired swing command capable of shredding the chips.
  • the second swing condition calculation unit 112 calculates the second swing condition based on the first swing condition and either the number of tools or the number of blades. Thereby, the frequency parameter and the amplitude parameter of the desired swing command capable of shredding the chips can be determined more reliably and quickly.
  • the first swing condition determination unit 111 determines at least one of the chip length, the surface roughness of the work W, the swing width, and the upper limit value of the first swing condition. Based on this, the first swing condition was determined. As a result, the swing command is issued so that the desired chip length, surface roughness, and swing width are obtained, or the upper limit of the frequency and amplitude determined according to the machine tool is not exceeded.
  • the first swing condition and the second swing condition to be configured can be determined.
  • the upper limit determination unit 114 for changing the first swing condition is provided based on at least one of the upper limit value of the second swing condition and the upper limit value of the operation parameter of the machine tool. rice field. Thereby, the first swing condition and the second swing condition constituting the swing command can be determined without exceeding the upper limit value of the second swing condition and the upper limit value of the operation parameter of the machine tool.
  • the optimum condition determination unit 115 sets the first swing condition and the second swing condition that minimize the priority condition based on the second swing condition calculated from the first swing condition within a predetermined range. Judged. As a result, when there are a plurality of first swing conditions that can satisfy each condition, the priority conditions are confirmed for the first swing conditions within a predetermined range, the upper limit values of all the conditions are satisfied, and the priority conditions are set. The minimum first swing condition and the second swing condition can be determined.
  • the second swing condition calculation unit 112 calculates the second swing condition using the above-mentioned mathematical formulas (2-1), (2-2) and (2-3). I tried to do it. As a result, the other of the frequency parameter and the amplitude parameter can be reliably calculated based on one of the frequency parameter and the amplitude parameter determined by the first swing condition determination unit 111.
  • the second swing condition calculation unit 112 calculates the amplitude parameter as the second swing condition including the margin based on the runout of the cutting edge of the tool T and the work W.
  • the cutting edge (machine tip) and work W of the tool T bend and swing due to swinging, but according to this embodiment, by calculating the amplitude parameter including the margin based on the swinging, the missed swing C is more reliably performed. Can be generated.
  • the input unit 14 uses various parameters required for the first swing condition determination unit 111 to determine the first swing condition, and various parameters required for the second swing condition calculation unit 112 to calculate the second swing condition. At least one of the parameter, the priority condition, and the margin is used as an input unit that can be input.
  • the display unit 15 shows the input contents input by the input unit 14, the first rocking condition determined by the first rocking condition determining unit 111, and the second rocking calculated by the second rocking condition calculation unit. At least one of various specifications determined by the dynamic condition, the first swing condition, and the second swing condition is displayed as a display unit. As a result, the first swing condition can be determined and the second swing condition can be calculated and determined based on the input value input by the user via the input unit 14. Further, the display by the display unit 15 makes it easy for the user to set and confirm the swing condition.
  • the learning control unit may be provided in the control device 1 of the machine tool according to the above embodiment.
  • This learning control unit calculates the correction amount of the superimposition command based on the integrated value of the position deviation up to one learning cycle, and superimposes the calculated correction amount on the superimposition command for correction.
  • the position deviation is likely to occur due to the inclusion of the swing command, but the followability to the periodic swing command can be improved by the correction by the learning control unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Geometry (AREA)
  • Numerical Control (AREA)
  • Turning (AREA)
  • Automatic Control Of Machine Tools (AREA)
PCT/JP2021/006169 2020-02-20 2021-02-18 工作機械の制御装置 Ceased WO2021167014A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US17/904,685 US12491595B2 (en) 2020-02-20 2021-02-18 Machine tool control device
CN202180015062.8A CN115104073B (zh) 2020-02-20 2021-02-18 机床的控制装置
DE112021001156.1T DE112021001156T5 (de) 2020-02-20 2021-02-18 Werkzeugmaschinensteuervorrichtung
JP2022501980A JP7522180B2 (ja) 2020-02-20 2021-02-18 工作機械の制御装置

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Application Number Priority Date Filing Date Title
JP2020027474 2020-02-20
JP2020-027474 2020-02-20

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WO2021167014A1 true WO2021167014A1 (ja) 2021-08-26

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CN (1) CN115104073B (cg-RX-API-DMAC7.html)
DE (1) DE112021001156T5 (cg-RX-API-DMAC7.html)
WO (1) WO2021167014A1 (cg-RX-API-DMAC7.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7313585B1 (ja) * 2022-08-05 2023-07-24 三菱電機株式会社 駆動条件決定装置および駆動条件決定方法
JPWO2023218648A1 (cg-RX-API-DMAC7.html) * 2022-05-13 2023-11-16
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