WO2022059611A1 - 異常判定システム及びプログラム - Google Patents
異常判定システム及びプログラム Download PDFInfo
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- WO2022059611A1 WO2022059611A1 PCT/JP2021/033286 JP2021033286W WO2022059611A1 WO 2022059611 A1 WO2022059611 A1 WO 2022059611A1 JP 2021033286 W JP2021033286 W JP 2021033286W WO 2022059611 A1 WO2022059611 A1 WO 2022059611A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by monitoring or safety
- G05B19/4061—Avoiding collision or forbidden zones
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form characterised by monitoring or safety
- G05B19/4068—Verifying part program on screen, by drawing or other means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50206—Tool monitoring integrated in nc control
Definitions
- the present invention relates to an abnormality determination system and a program.
- a numerical control device drives and controls a movable part (for example, a control shaft) of a machine tool based on a machining program (NC program) created in advance, and the movable part processes a workpiece or the like to be machined. do.
- a machining program NC program
- the machine tool can be moved due to reasons such as an error in the machining program, an incorrect mounting position of the workpiece with respect to the machine tool, or an error in the input of the tool offset. Interference between parts and between moving parts of the machine tool and other parts of the machine tool may occur.
- the numerical control device described in Patent Document 1 simulates the operation of the machine tool based on the simulation conditions including the preceding position of the moving part of the machine tool and the shape data of the machine tool.
- the numerical control device needs to execute the simulation prior to the actual operation of the machine tool, the processing time for processing the simulation is limited. Therefore, the numerical control device needs to reduce the accuracy of the simulation when the processing time is not sufficient, and conversely, the simulation can be performed with high accuracy when the processing time is sufficient.
- the accuracy of the simulation can also be affected by the specifications of the computer that executes the simulation.
- the numerical control device needs to set a wide range of the detection threshold when determining the detection threshold for detecting the abnormality of the machine tool, assuming that the accuracy of the simulation is poor. There is. As a result, the numerical control device sets a wide range of the detection threshold even when the simulation can be performed with high accuracy, so that the accuracy of detecting the abnormality of the machine tool is low.
- the abnormality determination system includes a pre-reading unit that pre-reads a machining program and creates command data, a pre-position calculation unit that calculates a preceding position of a movable portion of a machine tool based on the command data, and the preceding position calculation unit.
- the interference check unit for checking the interference between the movable part of the machine tool and other parts of the machine tool by simulating the operation of the machine tool based on the position and the shape data of the machine tool, and the interference.
- a motor information estimation unit that estimates motor estimation information about the motor of the machine tool based on the interference between the moving part and the other parts checked by the check unit, and an estimation that determines the estimation accuracy of the motor estimation information.
- An accuracy determination unit a detection threshold determination unit that determines a detection threshold for detecting an abnormality of the machine tool based on the motor estimation information and the estimation accuracy, and a motor measurement unit that acquires motor measurement information related to the motor. And a state determination unit for determining the state of the machine tool based on the motor measurement information and the detection threshold.
- the program according to the present disclosure includes a step of pre-reading a machining program on a computer and creating command data, a step of calculating a leading position of a movable part of a machine tool based on the command data, and the leading position and the above.
- a step of determining a detection threshold for detecting an abnormality in a machine a step of acquiring motor measurement information regarding the motor, and a step of determining the state of the machine tool based on the motor measurement information and the detection threshold. , Is executed.
- FIG. 1 is a diagram showing an outline of an abnormality determination system 1 according to the present embodiment.
- the abnormality determination system 1 aims to determine an abnormality in a machine tool.
- the abnormality determination system 1 includes a numerical control device 2 and a simulation device 3.
- the numerical control device 2 is a device for causing the machine tool 4 to perform predetermined machining or the like by controlling the machine tool 4.
- the numerical control device 2 includes the machining program 21, the look-ahead unit 22, the look-ahead block command data 23, the distribution processing unit 24, the movement command output unit 25, the acceleration / deceleration processing unit 26, the servo control unit 27, and the preceding. It includes a position calculation unit 28, a current position register 29, a motor measurement unit 30, a detection threshold value determination unit 35, and a state determination unit 36.
- the purpose of the simulation device 3 is to check the interference between the moving part of the machine tool 4 and other parts of the machine tool 4 by simulation.
- the simulation device 3 includes a preceding position receiving unit 31, an interference checking unit 32, a motor information estimation unit 33, and an estimation accuracy determination unit 34.
- the machining program 21 is a program that is stored in a storage device such as a memory of the numerical control device 2 and causes the machine tool 4 to perform predetermined machining.
- the look-ahead unit 22 pre-reads the machining program 21 and creates command data from the machining program 21. Specifically, the look-ahead unit 22 creates look-ahead block command data 23 as command data.
- the look-ahead block command data 23 is a plurality of data in which commands are read out from the machining program 21 for each block by the look-ahead unit 22 and converted into an execution format.
- the look-ahead block command data 23 is stored in a storage device such as a memory of the numerical control device 2.
- the distribution processing unit 24 reads the look-ahead block command data 23 block by block, and based on the movement amount and speed of each axis commanded by each block, the distribution movement amount commanded to the servomotor 41 of each axis for each distribution cycle. Ask for.
- the distribution processing unit 24 updates the current position of the servomotor 41 of each axis by adding the obtained distribution movement amount to, for example, the current position register 29. Further, the distribution processing unit 24 outputs the obtained distribution movement amount to the acceleration / deceleration processing unit 26 via the movement command output unit 25.
- the movement command output unit 25 stops outputting the distribution movement amount in the movement command output from the distribution processing unit 24 to the acceleration / deceleration processing unit 26. Therefore, the movement command output unit 25 outputs the movement command to the acceleration / deceleration processing unit 13 unless the axis stop command is input from the simulation device 3.
- the acceleration / deceleration processing unit 26 performs acceleration / deceleration processing based on the movement command, and outputs a movement command of the amount of movement processed for acceleration / deceleration to the servo control unit 27.
- the servo control unit 27 feeds back the position and speed from the position and speed detector attached to the servomotor 41 (or the movable part of the machine tool 4 driven by the servomotor 41), and outputs from the acceleration / deceleration processing unit 26.
- the position and speed feedback control is performed based on the movement command. Further, the servo control unit 27 drives and controls the servomotor 41 via the servo amplifier.
- the servo control unit 27 performs the same control on the servomotor 41 of each axis in the machine tool 4. That is, the position and speed of the servomotor 41 of each axis are controlled by the servo control unit 27.
- the leading position calculation unit 28 calculates the leading position of the movable part of the machine tool 4 based on the look-ahead block command data 23 as command data.
- the leading position calculation unit 28 calculates the leading position of the moving part of the machine tool 4 based on the current position of the moving part of the machine tool 4, the preset leading time, and the look-ahead block command data 23. ..
- the leading position of the movable portion of the machine tool 4 indicates a position where the movable portion driven by the servomotor 41 moves from the current position after the preceding time.
- the leading position calculation unit 28 outputs the coordinate values of the leading time and the leading position to the simulation device 3 in order to check the interference between the moving part of the machine tool 4 and the other parts of the machine tool 4.
- the movable part of the machine tool 4 indicates a work, a tool (for example, a cutting tool), a work, a movable part other than the tool, etc. driven by the servomotor 41. Further, the other parts of the machine tool 4 show parts other than the workpiece, the tool, and the movable part driven by the servomotor 41.
- the current position register 29 registers the current position of the moving part of the machine tool 4.
- the current position of the movable part of the machine tool 4 is sequentially updated by the distribution processing unit 24.
- the motor measurement unit 30 measures motor measurement information related to the servo motor 41. Specifically, the motor measuring unit 30 measures motor measurement information such as the current value of the motor, the load of the servomotor 41 estimated from the current value, and the load of the spindle. The motor measurement unit 30 may measure motor measurement information regarding the spindle motor 42 in addition to the servo motor 41.
- the leading position receiving unit 31 of the simulation device 3 receives the leading position of the movable portion of the machine tool 4 calculated by the leading position calculation unit 28.
- the interference check unit 32 checks for interference between the movable part of the machine tool 4 and other parts of the machine tool based on the preceding position of the movable part of the machine tool 4 and the shape data of the machine tool 4. Specifically, the interference check unit 32 connects the movable part of the machine tool 4 and other parts by simulating the operation of the machine tool 4 based on the simulation conditions including the preceding position and the shape data of the machine tool 4. Check for interference.
- the shape data of the machine tool 4 is, for example, data based on the design data of the machine tool 4, and is stored in the memory of the numerical control device 2 or the like.
- the motor information estimation unit 33 estimates the motor estimation information regarding the motor of the machine tool 4 based on the interference between the moving part checked by the interference check unit 32 and other parts. Specifically, the motor information estimation unit 33 interferes with the moving part of the machine tool 4 and other parts, that is, the load of the servomotor 41 and the load of the servomotor 41 based on the simulation of the operation of the machine tool 4. Motor estimation information including the current value of the servomotor 41 estimated from, the load of the spindle, the current value, and the like is estimated.
- the estimation accuracy determination unit 34 determines the estimation accuracy of the motor estimation information estimated by the motor information estimation unit 33. Specifically, the estimation accuracy determination unit 34 determines the estimation accuracy of the motor estimation information based on simulation conditions such as time resolution and accuracy of shape data.
- the detection threshold value determination unit 35 of the numerical control device 2 determines the detection threshold value for detecting the abnormality of the machine tool 4 based on the motor estimation information and the estimation accuracy. Specifically, the detection threshold value determination unit 35 determines the detection threshold value to a relatively small value when the estimation accuracy is relatively high, and sets the detection threshold value to a relatively large value when the estimation accuracy is relatively low. To decide.
- the state determination unit 36 determines the state of the machine tool 4 based on the motor measurement information measured by the motor measurement unit 30 and the detection threshold value determined by the detection threshold value determination unit 35. Specifically, the state determination unit 36 determines that the operation of the machine tool 4 is abnormal when the motor measurement information exceeds the detection threshold value, and when the motor measurement information does not exceed the detection threshold value, the operation of the machine tool 4 Is determined to be normal.
- the conventional simulation device simulates the operation of the machine tool 4 based on the simulation conditions including the preceding position of the moving part of the machine tool and the shape data of the machine tool.
- the simulation device needs to finish the simulation before the actual operation of the machine tool, the processing time for processing the simulation is limited.
- the numerical control device when determining the detection threshold value for detecting the abnormality of the machine tool, it is necessary to set a wide range of the detection threshold value on the premise that the accuracy of the simulation by the simulation device is poor. .. As a result, the numerical control device sets a wide range of the detection threshold even when the simulation can be performed with high accuracy, so that the accuracy of detecting the abnormality of the machine tool is low.
- the abnormality determination system 1 improves the accuracy of detecting the abnormality of the machine tool 4 by determining the detection threshold value according to the accuracy of the simulation.
- FIGS. 3A and 3B are diagrams showing an example of a detection threshold value.
- the simulation device 3 represents the work cut by the machine tool 4 by the voxel models M1 and M2.
- the voxel models M1 and M2 are models in which the target shape is represented by a set of minute cubes.
- the interference check unit 32 of the simulation device 3 uses the boxel models M1 and M2 to cut the work (that is, other parts of the machine tool 4) and the movable part of the machine tool 4 (for example, for example).
- the operation of the cutting tool T) shown in FIGS. 2A and 3A is simulated.
- the interference check unit 32 simulates the cutting load and the motor torque from the geometrical relationship between the voxel models M1 and M2 that model the workpiece and the cutting tool T.
- the interference check unit 32 according to the present embodiment simulates the cutting load and the motor torque by using a known method.
- the interference check unit 32 simulates the voxel models M1 and M2 so that only the part to be cut remains according to the progress of cutting by the cutting tool T.
- the accuracy of the simulation depends on the simulation conditions such as the voxel size and the time resolution in the voxel models M1 and M2, for example. Therefore, the interference check unit 32 adjusts the simulation conditions so that the simulation can be completed within a limited time.
- the estimation accuracy determination unit 34 determines the estimation accuracy of the motor estimation information based on the adjusted simulation conditions. For example, as shown in FIG. 2A, when the size of the voxel in the voxel model M1 as a simulation condition is smaller than that of the voxel model M2 shown in FIG. 3A, the estimation accuracy determination unit 34 uses the motor estimation information (for example, the motor torque). Estimated value) is determined to be a relatively high value.
- the detection threshold value determination unit 35 determines the detection threshold value to a relatively small value when the estimation accuracy is relatively high.
- the state determination unit 36 determines the state of the machine tool 4 based on the motor measurement information (for example, the measured value of the motor torque) and the detection threshold value determined by the detection threshold value determination unit 35. judge.
- the simulation device 3 expresses the work cut by the machine tool 4 by the voxel model M2.
- the simulation device 3 uses the boxel model M2 to form a workpiece (that is, another part of the machine tool 4) cut by the machine tool 4 and a moving part of the machine tool 4 (for example, the cutting tool T shown in FIG. 3A). Simulate the operation.
- the estimation accuracy determination unit 34 uses the motor estimation information (for example, the motor). Determine the estimation accuracy (estimated value of torque) to a relatively low value.
- the detection threshold value determination unit 35 determines the detection threshold value to a relatively large value when the estimation accuracy is relatively low.
- the state determination unit 36 determines the state of the machine tool 4 based on the motor measurement information (for example, the measured value of the motor torque) and the detection threshold value determined by the detection threshold value determination unit 35.
- the state determination unit 36 detects the measured value of the motor torque that may be erroneously detected if the detection threshold value remains a relatively small value. No, that is, it is determined that the state of the machine tool 4 is normal.
- the abnormality determination system 1 determines the detection threshold value to a relatively large value to determine the state of the machine tool 4. It can be judged appropriately.
- FIG. 4 is a flowchart showing a processing flow of the abnormality determination system 1 according to the present embodiment.
- the look-ahead unit 22 pre-reads the machining program 21 and creates the look-ahead block command data 23 as command data before the operation of the machine tool 4.
- step S2 the leading position calculation unit 28 calculates the leading position of the moving part of the machine tool 4 based on the current position of the moving part of the machine tool 4, the preset leading time, and the look-ahead block command data 23.
- step S3 the interference check unit 32 interferes with the moving part of the machine tool 4 and other parts by simulating the operation of the machine tool 4 based on the simulation conditions including the preceding position and the shape data of the machine tool 4. Check.
- step S4 the motor information estimation unit 33 estimates the motor estimation information regarding the motor of the machine tool 4 based on the interference between the moving part checked by the interference check unit 32 and other parts.
- step S5 the estimation accuracy determination unit 34 determines the estimation accuracy of the motor estimation information estimated by the motor information estimation unit 33.
- step S6 the detection threshold value determination unit 35 determines the detection threshold value for detecting the abnormality of the machine tool 4 based on the motor estimation information and the estimation accuracy.
- step S7 the state determination unit 36 determines the state of the machine tool 4 based on the motor measurement information measured by the motor measurement unit 30 and the detection threshold value determined by the detection threshold value determination unit 35.
- the abnormality determination system 1 works based on the pre-reading unit 22 that pre-reads the machining program 21 and creates the pre-reading block command data 23 as command data, and the pre-reading block command data 23.
- the leading position calculation unit 28 that calculates the leading position of the moving part of the machine 4 and the leading position and the shape data of the machine tool 4
- the moving part of the machine tool 4 and the machine tool 4 are simulated.
- the interference check unit 32 that checks the interference with other parts of 4 and the interference between the movable part and other parts checked by the interference check unit 32, the motor estimation information regarding the motor of the machine tool 4 is estimated.
- the motor information estimation unit 33 the estimation accuracy determination unit 34 that determines the estimation accuracy of the motor estimation information, and the detection threshold that determines the detection threshold for detecting the abnormality of the machine tool 4 based on the motor estimation information and the estimation accuracy. It includes a determination unit 35, a motor measurement unit 30 that acquires motor measurement information about the motor, and a state determination unit 36 that determines the state of the machine tool 4 based on the motor measurement information and the detection threshold.
- the abnormality determination system 1 determines the detection threshold value according to the accuracy of the simulation, so that even if the accuracy of the simulation varies, the abnormality of the machine tool 4 can be detected with high accuracy. Therefore, in the abnormality determination system 1, there is a difference between the simulation of the operation of the machine tool 4 and the actual operation of the machine tool (for example, the installation position of the work is incorrect, or the cutting tool is damaged. Etc.), even if the accuracy of the simulation varies, the abnormality of the machine tool 4 can be detected with high accuracy.
- the detection threshold value determination unit 35 determines the detection threshold value to a relatively small value when the estimation accuracy is relatively high, and determines the detection threshold value to a relatively large value when the estimation accuracy is relatively low. .. As a result, the abnormality determination system 1 determines the detection threshold value according to the accuracy of the simulation, so that the detection threshold value for detecting the abnormality of the machine tool 4 can be set to an appropriate value.
- the interference check unit 32 connects with the movable part of the machine tool 4 and other parts of the machine tool 4 by simulating the operation of the machine tool 4 based on the simulation conditions including the preceding position and the shape data of the machine tool 4. Check for interference.
- the estimation accuracy determination unit 34 determines the estimation accuracy of the motor estimation information based on the simulation conditions. As a result, the abnormality determination system 1 can determine the estimation accuracy of the motor estimation information indicating the accuracy of the simulation, so that the abnormality of the machine tool 4 can be detected accurately according to the accuracy of the simulation.
- the state determination unit 36 determines that the operation of the machine tool 4 is abnormal when the motor measurement information exceeds the detection threshold value, and when the motor measurement information does not exceed the detection threshold value, the operation of the machine tool 4 is normal. Judge that there is.
- the abnormality determination system 1 includes a numerical control device 2 for controlling the machine tool 4 and a simulation device 3 for simulating the operation of the machine tool 4.
- the numerical control device 2 includes a look-ahead unit 22, a preceding position calculation unit 28, a motor measurement unit 30, a detection threshold value determination unit 35, and a state determination unit 36
- the simulation device 3 includes an interference check unit 32 and a motor information estimation unit. 33 and an estimation accuracy determination unit 34 are provided.
- the abnormality determination system 1 can accurately detect the abnormality of the machine tool 4 by the numerical control device 2 and the simulation device 3.
- the above-mentioned abnormality determination system 1 can be realized by hardware, software, or a combination thereof. Further, the control method performed by the above-mentioned abnormality determination system 1 can also be realized by hardware, software, or a combination thereof.
- what is realized by software means that it is realized by a computer reading and executing a program.
- Non-transitory computer-readable media include various types of tangible storage media (tangible studio media).
- Examples of non-temporary computer-readable media include magnetic recording media (eg, hard disk drives), optomagnetic recording media (eg, optomagnetic disks), CD-ROMs (Read Only Memory), CD-Rs, CD-Rs /. W, including semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (random access memory)).
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Abstract
Description
ステップS1において、先読み部22は、工作機械4の動作前に、加工プログラム21を先読みし、指令データとして先読みブロック指令データ23を作成する。
2 数値制御装置
3 シミュレーション装置
4 工作機械
21 加工プログラム
22 先読み部
23 先読みブロック指令データ
24 分配処理部
25 移動指令出力部
26 加減速処理部
27 サーボ制御部
28 先行位置算出部
29 現在位置レジスタ
30 モータ計測部
31 先行位置受信部
32 干渉チェック部
33 モータ情報推定部
34 推定精度決定部
35 検出閾値決定部
36 状態判定部
Claims (5)
- 加工プログラムを先読みし、指令データを作成する先読み部と、
前記指令データに基づいて、工作機械の可動部の先行位置を算出する先行位置算出部と、
前記先行位置及び前記工作機械の形状データに基づいて前記工作機械の動作をシミュレーションすることによって、前記工作機械の前記可動部と前記工作機械の他の部分との干渉をチェックする干渉チェック部と、
前記干渉チェック部によりチェックされた前記可動部と前記他の部分との干渉に基づいて、前記工作機械のモータに関するモータ推定情報を推定するモータ情報推定部と、
前記モータ推定情報の推定精度を決定する推定精度決定部と、
前記モータ推定情報及び前記推定精度に基づいて、前記工作機械の異常を検出するための検出閾値を決定する検出閾値決定部と、
前記モータに関するモータ計測情報を取得するモータ計測部と、
前記モータ計測情報及び前記検出閾値に基づいて、前記工作機械の状態を判定する状態判定部と、
を備える異常判定システム。 - 前記検出閾値決定部は、前記推定精度が相対的に高い場合、前記検出閾値を相対的に小さい値に決定し、前記推定精度が相対的に低い場合、前記検出閾値を相対的に大きい値に決定する、請求項1に記載の異常判定システム。
- 前記干渉チェック部は、前記先行位置及び前記工作機械の形状データを含むシミュレーション条件に基づいて前記工作機械の動作をシミュレーションすることによって、前記工作機械の前記可動部と前記工作機械の前記他の部分との干渉をチェックし、
前記推定精度決定部は、前記シミュレーション条件に基づいて前記モータ推定情報の前記推定精度を決定する、請求項1又は2に記載の異常判定システム。 - 前記状態判定部は、前記モータ計測情報が前記検出閾値を超える場合、前記工作機械の動作が異常であると判定し、前記モータ計測情報が前記検出閾値を超える場合、前記工作機械の動作が正常であると判定する、請求項1から3のいずれか一項に記載の異常判定システム。
- コンピュータに、
加工プログラムを先読みし、指令データを作成するステップと、
前記指令データに基づいて、工作機械の可動部の先行位置を算出するステップと、
前記先行位置及び前記工作機械の形状データに基づいて前記工作機械の動作をシミュレーションすることによって、前記工作機械の前記可動部と前記工作機械の他の部分との干渉をチェックするステップと、
前記可動部と前記他の部分との干渉に基づいて、前記工作機械のモータに関するモータ推定情報を推定するステップと、
前記モータ推定情報の推定精度を決定するステップと、
前記モータ推定情報及び前記推定精度に基づいて、前記工作機械の異常を検出するための検出閾値を決定するステップと、
前記モータに関するモータ計測情報を取得するステップと、
前記モータ計測情報及び前記検出閾値に基づいて、前記工作機械の状態を判定するステップと、
を実行させるためのコンピュータプログラム。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112021004314.5T DE112021004314T5 (de) | 2020-09-17 | 2021-09-10 | Anomalien-Bestimmungs-System und Anomalien-Bestimmungs-Programm |
| US18/043,556 US12345615B2 (en) | 2020-09-17 | 2021-09-10 | Abnormality determination system and program |
| JP2022550524A JP7525625B2 (ja) | 2020-09-17 | 2021-09-10 | 異常判定システム及びプログラム |
| CN202180061587.5A CN116057488B (zh) | 2020-09-17 | 2021-09-10 | 异常判定系统以及记录介质 |
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| WO2022059611A1 true WO2022059611A1 (ja) | 2022-03-24 |
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| JP (1) | JP7525625B2 (ja) |
| CN (1) | CN116057488B (ja) |
| DE (1) | DE112021004314T5 (ja) |
| WO (1) | WO2022059611A1 (ja) |
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| JPH0751995A (ja) * | 1993-08-06 | 1995-02-28 | Fanuc Ltd | 加工負荷監視方式 |
| JPH07132440A (ja) * | 1993-11-02 | 1995-05-23 | Fanuc Ltd | 加工負荷監視方式 |
| JP2010244256A (ja) * | 2009-04-03 | 2010-10-28 | Fanuc Ltd | 干渉チェック機能を有する数値制御装置 |
| JP2012254499A (ja) * | 2011-06-09 | 2012-12-27 | Hitachi Ltd | 工作機械の加工異常検知装置及び加工異常検知方法 |
| JP2014172102A (ja) * | 2013-03-06 | 2014-09-22 | Fuji Mach Mfg Co Ltd | 工具異常判別システム |
| JP2019504421A (ja) * | 2016-02-04 | 2019-02-14 | マキノ インコーポレイテッド | プリプロセスシミュレーションを用いた実時間機械加工プロセスの監視 |
| JP2019070916A (ja) * | 2017-10-06 | 2019-05-09 | 国立大学法人神戸大学 | 切削シミュレーション方法および装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6303357B2 (ja) * | 2013-09-25 | 2018-04-04 | ブラザー工業株式会社 | 工作機械 |
| JP5758976B2 (ja) * | 2013-12-20 | 2015-08-05 | ファナック株式会社 | 数値制御装置付き工作機械 |
| JP2016087700A (ja) * | 2014-10-29 | 2016-05-23 | ファナック株式会社 | 負荷情報の設定を確認する機能を備えた制御装置 |
| WO2017111072A1 (en) * | 2015-12-25 | 2017-06-29 | Ricoh Company, Ltd. | Diagnostic device, computer program, and diagnostic system |
| JP6523230B2 (ja) * | 2016-09-09 | 2019-05-29 | ファナック株式会社 | オイルミスト濃度管理装置、オイルミスト管理システム及びオイルミスト管理方法 |
| JP6936178B2 (ja) * | 2018-03-23 | 2021-09-15 | ファナック株式会社 | 異常検知装置 |
| DE112021000902T5 (de) * | 2020-02-06 | 2022-11-17 | Fanuc Corporation | Assistenzvorrichtung |
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- 2021-09-10 JP JP2022550524A patent/JP7525625B2/ja active Active
- 2021-09-10 WO PCT/JP2021/033286 patent/WO2022059611A1/ja not_active Ceased
- 2021-09-10 CN CN202180061587.5A patent/CN116057488B/zh active Active
- 2021-09-10 DE DE112021004314.5T patent/DE112021004314T5/de active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751995A (ja) * | 1993-08-06 | 1995-02-28 | Fanuc Ltd | 加工負荷監視方式 |
| JPH07132440A (ja) * | 1993-11-02 | 1995-05-23 | Fanuc Ltd | 加工負荷監視方式 |
| JP2010244256A (ja) * | 2009-04-03 | 2010-10-28 | Fanuc Ltd | 干渉チェック機能を有する数値制御装置 |
| JP2012254499A (ja) * | 2011-06-09 | 2012-12-27 | Hitachi Ltd | 工作機械の加工異常検知装置及び加工異常検知方法 |
| JP2014172102A (ja) * | 2013-03-06 | 2014-09-22 | Fuji Mach Mfg Co Ltd | 工具異常判別システム |
| JP2019504421A (ja) * | 2016-02-04 | 2019-02-14 | マキノ インコーポレイテッド | プリプロセスシミュレーションを用いた実時間機械加工プロセスの監視 |
| JP2019070916A (ja) * | 2017-10-06 | 2019-05-09 | 国立大学法人神戸大学 | 切削シミュレーション方法および装置 |
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| US12345615B2 (en) | 2025-07-01 |
| US20230266203A1 (en) | 2023-08-24 |
| CN116057488B (zh) | 2025-10-10 |
| CN116057488A (zh) | 2023-05-02 |
| DE112021004314T5 (de) | 2023-06-01 |
| JP7525625B2 (ja) | 2024-07-30 |
| JPWO2022059611A1 (ja) | 2022-03-24 |
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