WO2018122986A1 - Dispositif d'analyse de programme de traitement - Google Patents

Dispositif d'analyse de programme de traitement Download PDF

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Publication number
WO2018122986A1
WO2018122986A1 PCT/JP2016/088987 JP2016088987W WO2018122986A1 WO 2018122986 A1 WO2018122986 A1 WO 2018122986A1 JP 2016088987 W JP2016088987 W JP 2016088987W WO 2018122986 A1 WO2018122986 A1 WO 2018122986A1
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WIPO (PCT)
Prior art keywords
cutting point
tool
machining program
data
cutting
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PCT/JP2016/088987
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English (en)
Japanese (ja)
Inventor
晋 松原
弘樹 金子
入口　健二
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2017539692A priority Critical patent/JP6316513B1/ja
Priority to PCT/JP2016/088987 priority patent/WO2018122986A1/fr
Publication of WO2018122986A1 publication Critical patent/WO2018122986A1/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
    • 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
    • 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 programme data in numerical form characterised by monitoring or safety
    • G05B19/4069—Simulating machining process on screen

Definitions

  • the present invention relates to a machining program analyzer for analyzing a machining program for operating a numerically controlled machine tool for machining a workpiece.
  • a numerically controlled machining program in which a movement command for moving a workpiece or a machining tool along a preset route is used.
  • the numerical control machining program is also called NC (Numerical Control) machining program.
  • the NC machining program is created by, for example, commercially available CAM (Computer Aided Manufacturing) software.
  • the NC machining program is, for example, a format defined by EIA (Electronic Industries Alliance) (hereinafter referred to as “EIA format”) or a format defined by ISO (International Standard Organization) (hereinafter referred to as “ISO format”). It is described by a character string defined according to a format.
  • the character string used in the description of the NC machining program is, for example, a character string of a G code and a macro sentence.
  • the G code is a command code described in the NC machining program when positioning, linear interpolation, circular interpolation, or plane designation is performed, for example.
  • the NC machining program needs to be confirmed before it is actually operated, but it is difficult to confirm the NC machining program by looking at the NC machining program alone. Therefore, when confirming the NC machining program, for example, the movement command described in the NC machining program is converted into a tool path, and the converted tool path trajectory is converted into, for example, a CRT (Cathode Ray Tube) device or the like. Confirmation is performed by displaying on a display device such as a display of a liquid crystal monitor.
  • a CRT Cathode Ray Tube
  • interpolation processing is executed based on the movement command described in the NC machining program, other machining conditions, and the machine configuration, and a command locus after the interpolation processing is calculated. Further, the actual machine is operated along the calculated command locus after the interpolation processing, and the actual locus which is the locus of the tool tip point is detected by the detection device.
  • the NC command data and the actual trajectory are stored in a storage device such as a memory, and called up when necessary. For example, the NC command data and the actual locus are displayed on a display device and used for visual analysis for processing evaluation.
  • converted tool path “converted tool path”, “command trajectory after interpolation processing”, and “actual trajectory of tool tip point” are “program path” and “NC command respectively” by those skilled in the art. It is often referred to as “data” and “FB (Feed Back) position data”, and will be described below using these terms as necessary.
  • Patent Document 1 discloses that the final machining shape data generated from the NC machining program is compared with the required data to determine overcutting and uncutting, and the degree of color and line segments are determined.
  • an invention of a machining simulation apparatus displaying with contour lines is described.
  • Patent Document 1 it is possible to know the degree of overcutting and uncutting.
  • the NC machining program correction work for eliminating machining defects such as overcutting and uncut parts there is a problem that it is difficult to grasp a portion that needs to be corrected, and work efficiency is poor.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a machining program analyzer capable of improving work efficiency when developing and correcting machining programs.
  • a machining program analysis apparatus includes tool trajectory data representing a tool trajectory in machining performed by a numerically controlled machine tool on a workpiece, and a tool. Based on the tool data representing the shape of the workpiece and the data representing the machining shape of the workpiece, the cutting point at which the tool cuts the workpiece to obtain the workpiece having the machining shape was calculated and calculated. The occurrence of uncut residue at each cutting point and the occurrence of overcutting are determined. Further, the machining program analysis apparatus displays each cutting point on the display device in a format in which the determination result can be visually recognized.
  • the machining program analysis apparatus has an effect that it is possible to improve work efficiency when developing and correcting a machining program.
  • FIG. 1 is a flowchart showing the overall operation of a numerical control apparatus according to a first embodiment;
  • FIG. FIG. 3 is a flowchart showing processing of reading CAD data by the analysis unit according to the first embodiment;
  • the CAD model alignment part concerning Embodiment 1 is a figure which shows the CAD model and command position before performing alignment.
  • the flowchart which shows the process which the analysis part concerning Embodiment 1 displays a cutting point.
  • the flowchart which shows the procedure in which the cutting point calculation part concerning Embodiment 1 calculates a cutting point.
  • movement which the cutting point calculation part concerning Embodiment 1 calculates the cutting point in case the tool model and CAD model are separated.
  • movement which the cutting point calculation part concerning Embodiment 1 calculates the cutting point in case the tool model and CAD model have touched.
  • movement which the cutting point calculation part concerning Embodiment 1 calculates the cutting point in case the tool model and CAD model are separated.
  • the flowchart which shows the 3rd procedure in which the cutting point display part concerning Embodiment 1 displays a cutting point on a display apparatus The figure which shows the 3rd example of a display of the cutting point which the display apparatus of the processing program analyzer concerning Embodiment 1 displays.
  • the flowchart which shows the process which the analysis part concerning Embodiment 2 displays a cutting point based on NC command data The flowchart which shows the procedure in which the cutting point calculation part concerning Embodiment 2 calculates a cutting point.
  • FIG. The flowchart which shows the process which the analysis part concerning Embodiment 3 displays a cutting point based on FB position data.
  • the flowchart which shows the procedure in which the cutting point calculation part concerning Embodiment 3 calculates a cutting point.
  • FIG. 1 is a diagram illustrating a configuration example of a numerical control apparatus configured to include the machining program analysis apparatus according to the first embodiment.
  • the machining program analysis device 1 constitutes a numerical control device 10 together with a numerical control unit 11, a tool database (DB: Data Base) 12, an axis drive unit 13 and a position data acquisition unit 14. Further, the machining program analysis device 1 includes an analysis unit 15 and a display device 16.
  • the numerical control device 10 controls the machine tool 20 according to the NC machining program 100 to machine a workpiece that is not shown in FIG.
  • the numerical control device 10 and the machine tool 20 are configured to communicate via a wired communication path represented by Ethernet (registered trademark) or USB (Universal Serial Bus).
  • the numerical controller 10 and the machine tool 20 may communicate with each other via a wireless communication path.
  • the machine tool 20 is a numerically controlled machine tool including a plurality of drive shafts 21 and a position detection unit 22, and operates according to a command received from the numerical control device 10.
  • the NC machining program 100 is a numerical machining program for operating the machine tool 20.
  • the numerical controller 11 generates NC command data that is numerical control command data from the NC machining program 100 and the tool DB 12.
  • the tool DB 12 holds tool data of various processing tools used when the machine tool 20 processes a processing object.
  • the tool data is data including information on the type of the processing tool and information representing the shape of the processing tool such as a tool diameter, a tool edge radius, and a tool length.
  • the shaft drive unit 13 drives a plurality of drive shafts 21 provided in the machine tool 20 in accordance with the NC command data generated by the numerical control unit 11.
  • the position data acquisition unit 14 acquires actual position data, which is data indicating the position of each drive shaft of the plurality of drive shafts 21, generated by the position detection unit 22 of the machine tool 20 as FB position data.
  • the FB position data is data representing the actual position of the tool at the time of machining with the position coordinates of each drive axis.
  • the analysis unit 15 constituting the machining program analysis device 1 includes an NC machining program 100, NC command data input from the numerical control unit 11, FB position data input from the position data acquisition unit 14,
  • the CAD data 200 created by a computer-aided design (CAD) device and the tool data held in the tool DB 12 are analyzed.
  • the NC machining program 100 is a program described by a character string of a G code and a macro sentence, is created by CAM software, and is defined according to an EIA format format or an ISO format format.
  • the NC machining program 100 describes a movement command for moving a workpiece or a machining tool along a preset route, an auxiliary operation command for the machine tool 20, and a set value of machining conditions.
  • the NC command data means a command position or a set of command positions for each preset control cycle.
  • the command position is a position commanded by a movement command described in the NC machining program 100.
  • the display device 16 constituting the machining program analysis device 1 displays the analysis result by the analysis unit 15.
  • the plurality of drive shafts 21 are controlled by the numerical control device 10, and the machining tool not shown in FIG. 1 is moved to the command position notified from the numerical control device 10.
  • the position detection unit 22 detects the position of each drive shaft of the plurality of drive shafts 21 and generates actual position data that is data indicating the position of each drive shaft.
  • the numerical control unit 11 acquires the tool information commanded by the NC machining program 100 from the tool DB 12, and based on the acquired tool information and the NC machining program 100, the NC command data is obtained. Generate.
  • the shaft drive unit 13 generates drive command data for instructing the plurality of drive shafts 21 of the machine tool 20 according to the NC command data generated by the numerical control unit 11, and transmits the generated drive command data to the machine tool 20. Thereby, the position and posture of at least one of the tool and the workpiece are controlled.
  • the position detector 22 detects the positions of the plurality of drive shafts 21 and generates actual position data. The generated actual position data of each drive shaft is transmitted to the numerical controller 10.
  • the numerical control apparatus 10 acquires the actual position data of each drive shaft transmitted from the position detection unit 22 of the machine tool 20 by the position data acquisition unit 14 as FB position data.
  • the analysis unit 15 includes an NC machining program 100, NC command data generated by the numerical control unit 11, or FB position data acquired by the position data acquisition unit 14, CAD data 200, and tool data held in the tool DB 12. Is analyzed to calculate a cutting point, which will be described later, and the calculated cutting point is displayed on the display device 16.
  • the CAD data 200 is CAD data representing an ideal shape of a machining result obtained by machining the machining object by the machine tool 20 in accordance with the NC machining program 100. If another expression is used, machining of the machining object is performed. This is CAD data representing the shape.
  • the FB position data is data indicating the movement trajectory of the tool used for machining when machining is performed according to the NC machining program 100.
  • FIG. 2 is a flowchart showing the overall operation of the numerical control apparatus 10 according to the first embodiment.
  • the processing from steps ST1001 to ST1007 shown in FIG. 2 is divided into the following three subflows.
  • (1) NC command data generation flow (ST1001, ST1002).
  • (2) FB position data acquisition flow (ST1003, ST1004).
  • (3) Cutting point display flow (ST1005 to ST1007).
  • the numerical control unit 11 first reads the NC machining program 100, and stores the read NC machining program in the NC machining program in a storage device (not shown). Store in the area (step ST1001). Next, the numerical control unit 11 acquires an NC machining program from the storage device, acquires tool data of a tool used in machining according to the acquired NC machining program from the tool DB 12, and based on the acquired NC machining program. To calculate the command position.
  • the numerical controller 11 further generates NC command coordinates indicating the position of the tool at the time of machining based on the calculated command position, tool data, and the machine configuration that is the configuration information of the machine tool 20, NC command data for instructing the position coordinates of each drive axis is generated based on the NC command coordinates and stored in the NC command data storage area in the storage device (step ST1002).
  • the numerical controller 11 generates NC command data for each interpolation time of the machine tool 20 and stores it in the NC command data storage area in the storage device.
  • the NC command data is data for commanding the position of the tool at the time of machining with the position coordinates of each drive axis.
  • the shaft drive unit 13 receives NC command data generated by the numerical control unit 11 and stored in the NC command data storage area in the storage device. Is transmitted to the machine tool 20 to drive the machine tool 20 (step ST1003).
  • the machine tool 20 that has received the NC command data drives a plurality of drive shafts 21 in accordance with the NC command data.
  • the position detection unit 22 generates FB position data based on the actual position data of the plurality of drive shafts 21 and transmits the FB position data to the numerical controller 10.
  • the position data acquisition unit 14 of the numerical control device 10 acquires this and stores it in the FB position data storage area in the storage device (step ST1004).
  • the analysis unit 15 first reads the CAD data 200 and stores it in the CAD data storage unit which is a CAD data storage area in the storage device (step ST1005). Next, the analysis unit 15 calculates a cutting point (step ST1006). In step ST1006, the analysis unit 15 calculates a cutting point based on the NC machining program, NC command data or FB position data, tool data, and CAD data.
  • the NC machining program is a program in which various commands including a movement command for commanding the machine tool 20 to move a machining tool are described.
  • the NC command data is data for instructing the position of the tool at the time of machining using the position coordinates of each drive axis.
  • the FB position data is data representing the actual position of the tool at the time of machining with the position coordinates of each drive axis. That is, these NC machining program, NC command data, and FB position data correspond to tool path data representing the movement path of the tool during machining.
  • the analysis unit 15 When calculating the cutting point based on the NC machining program, the tool data, and the CAD data, the analysis unit 15 acquires the NC machining program from the NC machining program storage area in the storage device, and further acquires the obtained NC machining.
  • Tool data of a tool used in machining according to the program is acquired from the tool DB 12, and CAD data is acquired from a CAD data storage unit.
  • the analysis part 15 calculates the cutting point at the time of arrange
  • the analysis unit 15 calculates a cutting point based on the positional relationship between the tool model and the machining shape of the workpiece when the tool model that is the shape of the tool represented by the tool data is arranged at each command position.
  • the machining shape of the workpiece can be obtained from CAD data.
  • the cutting point is the closest point when the tool is placed at each command position and the machining shape represented by the CAD data. If the tool interferes with the machining shape, the tool model and the machining curved surface are in contact with each other. The tool model and the machining curved surface are in contact with each other when the tool model is offset inward and the two contact with each other.
  • the analysis part 15 acquires NC command data from the NC command data storage area in a memory
  • Tool data of a tool used in machining according to NC command data is acquired from the tool DB 12 and CAD data is acquired from a CAD data storage unit.
  • the analysis part 15 calculates the cutting point at the time of moving a tool according to NC command data based on the acquired NC command data, tool data, and CAD data.
  • the analysis unit 15 performs cutting based on the positional relationship between the tool model and the machining shape of the workpiece, as in the case of calculating the cutting point based on the NC machining program, the tool data, and the CAD data described above. Calculate points.
  • the analysis part 15 acquires FB position data from the FB position data storage area in a memory
  • the tool data of the tool used in the machining when the FB position data is generated is acquired from the tool DB 12, and the CAD data is acquired from the CAD data storage unit.
  • the analysis part 15 calculates the cutting point at the time of moving a tool according to FB position data based on the acquired FB position data, tool data, and CAD data.
  • the analysis unit 15 performs cutting based on the positional relationship between the tool model and the machining shape of the workpiece, as in the case of calculating the cutting point based on the NC machining program, the tool data, and the CAD data described above. Calculate points.
  • the analysis unit 15 calculates the cutting point, and then displays the calculated cutting point on the display device 16 (step ST1007). At this time, the analysis unit 15 displays the cutting point together with the machining shape represented by the CAD data. Further, the analysis unit 15 highlights the cutting point according to the uncut material attribute and the overcut attribute.
  • Uncut means that the machined object cannot be cut sufficiently when the tool is placed at the command position, and “too much cut” means that the tool is placed at the command position. It means that the object to be machined is cut more than necessary when machining is performed.
  • the “uncut attribute” is information indicating that an uncut residue is generated at a cutting point
  • the “overcut attribute” is information indicating that an excessive cut is generated at a cutting point.
  • the analysis unit 15 highlights the cutting points that remain uncut and the cutting points that are excessively cut with respect to the machining shape represented by the CAD data.
  • the highlighting may be performed by a different method between an uncut cutting point and an excessively cut cutting point, or may be performed by the same method.
  • an uncut cutting point and an overcut cutting point are displayed in different colors.
  • the analysis unit 15 determines whether there is only an uncut portion and whether it is excessively cut, for example, by checking whether the distance between the cutting point and the tool placed at the command position is less than a specified value.
  • the machine is overcut by checking whether the cutting point is inside the tool placed at the command position and the distance offset to the inside of the tool until it contacts the cutting point is less than the specified value. Do. Further, when highlighting, color-separated display may be performed depending on the uncut distance and overcut distance values, the uncut distance may be displayed as an uncut amount, and the overcut distance may be displayed as an uncut amount.
  • FIG. 3 is a diagram illustrating a configuration example of the analysis unit 15 according to the first embodiment.
  • the analysis unit 15 includes an NC machining program acquisition unit 31 that acquires an NC machining program, an NC machining program storage unit 32 that stores an NC machining program, a tool data acquisition unit 33 that acquires tool data used in machining, a tool A tool data storage unit 34 for storing data.
  • the analysis unit 15 also includes a CAD data acquisition unit 35 that acquires CAD data, a CAD data alignment unit 36 that aligns the CAD data, and a CAD data storage that stores the CAD data after the alignment is performed. Unit 37.
  • the analysis unit 15 further includes a cutting point calculation unit 42 that calculates cutting points based on the NC machining program, tool data, and CAD data, a cutting point storage unit 43 that stores cutting points, and the cutting points on the display device 16. And a cutting point display unit 44 for displaying.
  • FIG. 3 shows a configuration example of the analysis unit 15 when cutting points are calculated using the NC machining program, tool data, and CAD data.
  • FIG. 4 is a flowchart showing details of the process in which the analysis unit 15 reads the CAD data, that is, the process of step ST1005 shown in FIG.
  • the CAD data acquisition unit 35 reads the CAD data (step ST1101).
  • the CAD data alignment unit 36 aligns the CAD data read in step ST1101 (step ST1102).
  • the CAD data alignment unit 36 performs alignment by converting coordinate data included in the CAD data.
  • the CAD data alignment unit 36 includes the orientation and origin of the CAD model, which is the machining shape represented by the CAD data 200, and the NC machining gram 100 read by the numerical control unit 11 in step ST1001 shown in FIG.
  • An offset amount with respect to the program coordinate system is obtained, the CAD data 200 is converted by reflecting the obtained offset amount in the CAD data, and the display of the CAD model represented by the CAD data 200 is matched with the program coordinate system of the NC machining program 100.
  • This process is an example, and the alignment may be performed by other methods.
  • the CAD data alignment unit 36 displays each command position commanded by the NC machining program 100 and the CAD model represented by the CAD data 200 on the display device 16, and the position and orientation included in the CAD data 200 are displayed. Information may be manually corrected by the operator to perform alignment.
  • FIG. 5 is a diagram showing a CAD model represented by the CAD data 200 before the CAD data alignment unit 36 performs alignment and a command position commanded by the NC machining program 100.
  • FIG. 6 shows the position of the CAD data alignment unit 36. It is a figure which shows the CAD model and command position after performing alignment.
  • the upper part of FIG. 5 shows a CAD model represented by the CAD data 200 before alignment, and the lower part of FIG. 5 shows a path (hereinafter referred to as a straight line) formed by connecting command positions commanded by the NC machining program 100 in a chronological order. , Referred to as a command path).
  • the CAD data alignment unit 36 converts the CAD data 200 so that the CAD model and the command path shown in FIG. 5 have the positional relationship shown in FIG.
  • the CAD data storage unit 37 receives the CAD data after the alignment is performed by the CAD data alignment unit 36 and stores it (step ST1103).
  • the CAD data stored in the CAD data storage unit 37 that is, the CAD data after the alignment is completed is referred to as adjusted CAD data.
  • FIG. 7 shows a process in which the analysis unit 15 displays a cutting point based on the NC machining program 100, that is, in step ST1006 shown in FIG. 2, the cutting point is calculated based on the NC machining program, tool data, and CAD data. It is a flowchart which shows the detail of the process which displays a cutting point in step ST1007.
  • the NC machining program acquisition unit 31 reads the NC machining program, and the NC machining program storage unit 32 stores it (step ST1201).
  • the tool data acquisition unit 33 acquires the tool data of the tool used in the machining according to the NC machining program 100 from the tool DB 12, and the tool data storage unit 34 stores this (step ST1202).
  • the cutting point calculation unit 42 has adjusted the machining program stored in the NC machining program storage unit 32, the tool data stored in the tool data storage unit 34, and the CAD data storage unit 37.
  • a cutting point is calculated based on the CAD data (step ST1203). The operation in which the cutting point calculation unit 42 calculates the cutting point will be described separately.
  • the cutting point calculation unit 42 stores each calculated cutting point in the cutting point storage unit 43 in association with the command position used in the calculation of the cutting point.
  • the cutting point calculation unit 42 adds the remaining uncut attribute and the overcut attribute to the corresponding cutting point for each calculated cutting point (step ST1204), and also the surface attribute of the CAD model to which the cutting point belongs. Is added to the cutting point (step ST1205), and NC machining program information is added to the cutting point (step ST1206).
  • the cutting point calculation unit 42 adds the uncut material attribute, the overcutting attribute, the CAD model surface attribute, and the NC machining program information to the cutting point stored in the cutting point storage unit 43. To do.
  • the uncut material attribute and the overcut attribute that are added to the cutting point in step ST1204 are collectively referred to as a machining result attribute.
  • the “surface attribute of the CAD model to which the cutting point belongs” added to each cutting point by the cutting point calculation unit 42 in step ST1205 is a surface on which one of one or more surfaces constituting the CAD model is cut. This is information indicating whether a point exists.
  • the CAD model has a shape obtained by combining a plurality of curved surfaces and planes, and the surface attribute of the CAD model indicates one or more of a plurality of surfaces constituting the CAD model.
  • a cutting point may exist at a surface boundary of the CAD model, that is, at a position where two or more surfaces constituting the CAD model are connected. Applicable.
  • the “NC machining program information” added to each cutting point by the cutting point calculation unit 42 in step ST1206 is identification information of a movement command that commands a command position corresponding to the cutting point.
  • sequence numbers are added to various commands described in the NC machining program. Therefore, the cutting point calculation unit 42 adds the sequence number to the cutting point as “NC machining program information”.
  • the cutting point display unit 44 next reads each cutting point calculated by the cutting point calculation unit 42 from the cutting point storage unit 43 and displays the display device 16. (Step ST1207). The display content of the cutting point will be described separately.
  • FIG. 8 is a flowchart showing a procedure in which the cutting point calculation unit 42 calculates cutting points in step ST1203 of FIG.
  • the cutting point calculation unit 42 first generates a tool model based on the tool data stored in the tool data storage unit 34. Further, the cutting point calculation unit 42 analyzes the NC machining program stored in the NC machining program storage unit 32 to obtain a command position for commanding the position of the tool, and in the tool axis direction commanded by the NC machining program. The tool model is placed at the command position (step ST1301).
  • “placement” means that the tool model is logically placed in the program coordinate system of the NC machining program 100. Unless otherwise specified, “arrangement” used in the following description has the same meaning.
  • the cutting point calculation unit 42 calculates cutting points between the arranged tool model and CAD model (step ST1302).
  • FIGS. 9 to 16 are diagrams illustrating an example of an operation in which the cutting point calculation unit 42 calculates a cutting point.
  • 9 to 11 are diagrams illustrating a first example of an operation in which the cutting point calculation unit 42 calculates a cutting point, and illustrates an example of a cutting point calculation operation when the tool used for processing is a ball end mill tool.
  • FIGS. 12 to 14 are diagrams illustrating a second example of the operation in which the cutting point calculation unit 42 calculates the cutting point, and the cutting point calculation operation when the tool used for processing is a square end mill tool with a corner R. An example is shown.
  • FIGS. 15 and 16 are diagrams illustrating a third example of an operation in which the cutting point calculation unit 42 calculates a cutting point, and illustrates a calculation operation example in the case where a plurality of cutting points are calculated.
  • 9 and 12 show a method for calculating a cutting point when the tool model and the CAD model are separated from each other.
  • the cutting point calculation unit 42 calculates the closest point on the CAD model where the distance between the tool model and the CAD model is the shortest as the cutting point.
  • the closest point can be obtained by mathematically analyzing the tool model and the CAD model.
  • 10 and 13 show a method for calculating a cutting point when the tool model and the CAD model are in contact with each other.
  • the cutting point calculation unit 42 calculates a contact point between the tool model and the CAD model as a cutting point.
  • the contact point between the tool model and the CAD model can be obtained by mathematically analyzing the tool model and the CAD model.
  • FIG. 11 and FIG. 14 show the calculation method of the cutting point when the tool model is biting into the CAD model.
  • the cutting point calculator 42 offsets the tool model on the inside, that is, in the direction in which the tool model moves away from the CAD model, and the CAD model. Is calculated as a cutting point.
  • the contact point here is a contact point between the tool model and the CAD model when the tool model is offset inward until the tool model and the CAD model are in contact with each other.
  • the contact point between the offset tool model and the CAD model can be obtained by mathematically analyzing the tool model and the CAD model.
  • the cutting point calculation part 42 calculates the cutting point with respect to each of the command positions commanded by the NC machining program by the method shown in FIGS.
  • the tool model and the CAD model have the relationship shown in FIG. 9 and FIG. 12, they are left uncut. Further, when the tool model and the CAD model have the relationship shown in FIG. 11 and FIG.
  • the “uncut attribute” indicating that the cutting point is left uncut is added.
  • the cutting point calculation unit 42 calculates the calculated cutting when the tool model when the tool model is arranged at the command position corresponding to the calculated cutting point and the CAD model have the relationship shown in FIGS. 11 and 14. To the point, an “overcutting attribute” indicating that overcutting is performed at the cutting point is added. Further, the cutting point calculation unit 42 calculates the calculated cutting point when the tool model and the CAD model when the tool model is arranged at the command position corresponding to the calculated cutting point have the relationship shown in FIGS. The attribute information is not added to. The process of adding the “uncut attribute” and “overcut attribute” to the cutting point corresponds to the process of step ST1204 shown in FIG.
  • FIG. 15 and 16 show a cutting point calculation method when there are a plurality of cutting points at the surface boundary.
  • FIG. 15 shows an example where the tool model of the ball end mill and the CAD model are in contact at two points, that is, when there are two cutting points
  • FIG. 16 shows that the tool model of the square end mill with corner R and the CAD model are two.
  • An example in the case of contact with a point, that is, a case where there are two cutting points is shown.
  • the cutting point calculation unit 42 calculates two cutting points for one command position.
  • the cutting point calculation unit 42 determines whether or not an uncut portion is generated and whether or not an excessive cut is generated. If it occurs, the “uncut attribute” is added to the corresponding cutting point, and if overcutting occurs, the “overcut attribute” is added to the corresponding cutting point.
  • FIG. 17 is a diagram illustrating an example of cutting points displayed on the display device 16 of the machining program analysis apparatus 1 according to the first embodiment. Specifically, the cutting points displayed on the display device 16 in step ST1207 of FIG. It is a figure which shows an example of a point.
  • the cutting point display unit 44 is calculated in steps ST1203 to ST1206 of FIG. 7 and is displayed in FIG. 17 based on the cutting points stored in the cutting point storage unit 43 and attribute information added to the cutting points. Is displayed on the display device 16.
  • FIG. 17 shows an example in which the command position commanded by the NC machining program and the cutting point are displayed together with the CAD model. In FIG.
  • black circles indicate command positions, and black circles connected by lines indicate tool paths along which the tool moves in accordance with the NC machining program. Further, the cutting points are indicated by squares, and the black squares correspond to uncut portions. A white square corresponds to a cutting point to which no machining result attribute is added, that is, a cutting point where neither uncut nor excessively cut occurs.
  • FIG. 17 although the example of a display when the cutting point to which the overcutting attribute was added does not exist was shown, when there exists the cutting point to which the overcutting attribute was added, the cutting point is highlighted, etc. The information is displayed on the display device 16 in a form that can be identified by the operator.
  • the machining program analysis apparatus is capable of visually recognizing a cutting point where an uncut portion and excessive cutting occur and other cutting points (a cutting point where no remaining portion and excessive cutting occur). Because of the display, the operator can easily grasp which cutting point occurs when a machining defect such as uncut or overcut occurs, and the efficiency of NC machining program development and correction can be improved. Can be improved.
  • you may display the relationship between the cutting point and the command position in a way that allows recognition it is possible for the operator to determine which command of the NC machining program needs to be corrected when a machining defect such as uncut or overcut occurs. Can be easily grasped, and the work efficiency of development and correction of the NC machining program can be further improved.
  • the amount of uncut material and the amount of overcutting may be displayed in a form that can be visually recognized by the operator in correspondence with the cutting point where uncut material is generated and the cutting point where excessive material is generated. For example, a numerical value is displayed.
  • a numerical value indicating an uncut amount and a numerical value indicating an excessive amount of shaving may be displayed in different colors.
  • FIG. 18 is a flowchart showing a first procedure in which the cutting point display unit 44 displays cutting points on the display device 16 in step ST1207 of FIG.
  • the cutting point display unit 44 searches for the cutting point to which the surface attribute of the specific surface is added from the cutting points stored in the cutting point storage unit 43 (step ST1401).
  • the cutting point display unit 44 changes the shape of the searched cutting point and displays it on the display device 16 (step ST1402).
  • the cutting point display unit 44 displays the content shown in FIG. 19 on the display device 16, for example.
  • FIG. 19 is a diagram illustrating a first display example of cutting points displayed by the display device 16 of the machining program analysis apparatus 1 according to the first embodiment. Specifically, the cutting points are displayed based on surface attributes.
  • FIG. 20 is a flowchart showing a second procedure in which the cutting point display unit 44 displays cutting points on the display device 16 in step ST1207 of FIG.
  • the cutting point display unit 44 searches the command positions stored in the cutting point storage unit 43 for command positions having a plurality of cutting points, that is, command positions associated with a plurality of cutting points (step ST1501). ).
  • the cutting point display unit 44 displays the searched command position and the cutting point on the display device 16 (step ST1502).
  • step ST1502 the cutting point display unit 44 displays the content shown in FIG.
  • FIG. 21 is a diagram illustrating a second display example of the cutting points displayed by the display device 16 of the machining program analysis apparatus 1 according to the first embodiment. In the display example shown in FIG.
  • a command position having a plurality of cutting points is also displayed. Further, the cutting points corresponding to the command positions having a plurality of cutting points are represented by black squares. By performing the display shown in FIG. 21, the operator can easily grasp the cutting point located at the surface boundary where the machining quality may be deteriorated.
  • FIG. 22 is a flowchart showing a third procedure in which the cutting point display unit 44 displays cutting points on the display device 16 in step ST1207 of FIG.
  • the cutting point display unit 44 searches for the command position and the cutting point stored in the cutting point storage unit 43 (step ST1601).
  • the cutting point display unit 44 displays the searched command position and cutting point by connecting the associated command position and cutting point with a straight line (step ST1602).
  • the cutting point display unit 44 displays the content shown in FIG. 23 on the display device 16, for example.
  • FIG. 23 is a diagram illustrating a third display example of the cutting points displayed by the display device 16 of the machining program analysis apparatus 1 according to the first embodiment. In the display example shown in FIG.
  • the display format on the display device 16 may be any format that allows the operator to visually recognize the correspondence between the cutting point and the command position, and the display format is not limited to that shown in FIG.
  • FIG. 24 is a flowchart showing a fourth procedure in which the cutting point display unit 44 displays cutting points on the display device 16 in step ST1207 of FIG.
  • the cutting point display unit 44 linearly interpolates each cutting point stored in the cutting point storage unit 43 in time series (step ST1701), and displays each cutting point after the linear interpolation (step ST1702).
  • FIG. 25 is a diagram illustrating a fourth display example of the cutting points displayed by the display device 16 of the machining program analysis apparatus 1 according to the first embodiment.
  • each cutting point is represented by linear interpolation in time series, that is, in the order in which machining is performed.
  • the first to fourth display examples are shown.
  • the display device 16 may display a combination of two or more of these display examples.
  • the first display example and the third display example may be combined.
  • the cutting point based on the NC machining program, the tool data representing the tool model of the tool used in machining, and the CAD data representing the machining shape of the workpiece.
  • it is determined whether there is uncut or overcut at each cutting point, and if a cutting point where uncut or overcut occurs is detected, the detected cutting point is left uncut and overcut. It was decided to display in a format different from the cutting points where none of these occurred. Thereby, the operator can know which instruction described in the NC machining program needs to be corrected, and can efficiently develop and correct the NC machining program.
  • Embodiment 2 FIG.
  • the cutting points are calculated using the NC machining program, tool data, and CAD data.
  • the NC command data and tool data are calculated.
  • the cutting point is calculated using CAD data.
  • the machining program analyzer according to the second embodiment is referred to as a machining program analyzer 1a.
  • the configuration of the numerical controller having the machining program analyzer 1a according to the present embodiment is the same as that of the numerical controller according to the first embodiment. That is, the machining program analyzer 1 of the numerical controller 10 shown in FIG. 1 is replaced with the machining program analyzer 1a. Further, the configuration of the machining program analysis device 1a corresponds to a configuration in which the analysis unit 15 of the machining program analysis device 1 is replaced with the analysis unit 15a illustrated in FIG.
  • the machining program analysis device 1a performs processing according to the procedure shown in the flowchart shown in FIG. 2 in the same manner as the machining program analysis device 1, and calculates and displays cutting points. However, as described above, the machining program analyzer 1a calculates the cutting point using the NC command data, tool data, and CAD data. That is, the process in which the machining program analyzer 1a calculates the cutting point in step ST1006 shown in FIG. 2 is different from the process in which the machining program analyzer 1 calculates the cutting point.
  • the processing executed by the machining program analyzer 1a in other steps ST1001 to T1005 and ST1007 is the same as the processing executed by the machining program analyzer 1 in each step.
  • FIG. 26 is a diagram of a configuration example of the analysis unit 15a configuring the machining program analysis device 1a according to the second embodiment.
  • the analysis unit 15a includes a tool data acquisition unit 33 that acquires tool data representing the shape of a tool used in machining, a tool data storage unit 34 that stores tool data, a CAD data acquisition unit 35 that acquires CAD data, A CAD data alignment unit 36 that aligns the CAD data and a CAD data storage unit 37 that stores the CAD data after the alignment is provided.
  • the analysis unit 15a also determines an NC command data acquisition unit 38 that acquires NC command data, an NC command data storage unit 39 that stores NC command data, and a cutting point based on the NC command data, tool data, and CAD data.
  • the cutting point calculation part 42a to calculate, the cutting point memory
  • the analysis unit 15a replaces the cutting point calculation unit 42 of the analysis unit 15 according to the first embodiment shown in FIG. 3 with a cutting point calculation unit 42a.
  • the NC machining program acquisition unit 31 and the NC machining program storage unit 32 are deleted from the analysis unit 15, and an NC command data acquisition unit 38 and an NC command data storage unit 39 are added.
  • description of components other than the NC command data acquisition unit 38, the NC command data storage unit 39, and the cutting point calculation unit 42a is omitted.
  • FIG. 27 is a process in which the analysis unit 15a according to the second embodiment displays a cutting point based on NC command data, that is, based on NC command data, tool data, and CAD data in step ST1006 shown in FIG. It is a flowchart which shows the detail of the process which calculates a cutting point and displays a cutting point in step ST1007.
  • the NC command data acquisition unit 38 reads the NC command data from the NC command data storage area in the storage device, and this is read as the NC command data storage unit. 39 stores (step ST1801).
  • the tool data acquisition unit 33 acquires the tool data of the tool used in machining according to the NC command data read in step ST1801 from the tool DB 12, and the tool data storage unit 34 stores the tool data (step ST1802). ).
  • the cutting point calculation unit 42a adjusts the NC command data stored in the NC command data storage unit 39, the tool data stored in the tool data storage unit 34, and the adjustment stored in the CAD data storage unit 37.
  • a cutting point is calculated based on the completed CAD data (step ST1803).
  • the cutting point calculation unit 42a first analyzes the NC command data and calculates the coordinates of the path along which the tool passes during processing. Coordinates obtained by analyzing the NC command data (hereinafter referred to as command coordinates) represent points on the path through which the tool passes during machining, as in the command position described in the first embodiment. Normally, NC command data is obtained by performing interpolation processing on each command position commanded by the NC machining program.
  • the cutting point calculation unit 42a calculates a cutting point using the calculated command coordinates, tool data, and CAD data.
  • the cutting point calculation unit 42 of the analysis unit 15 uses the command position, tool data and CAD data to cut the cutting point. This is the same as the process of calculating.
  • the difference between the cutting point calculation unit 42a and the cutting point calculation unit 42 is that the NC command data is analyzed to obtain command coordinates existing on the tool path, or the NC machining program is analyzed and present on the tool path. The command position to be obtained is obtained.
  • FIG. 28 is a flowchart showing a procedure by which the cutting point calculation unit 42a calculates cutting points in step ST1803 of FIG.
  • the cutting point calculation unit 42 a first generates a tool model based on the tool data stored in the tool data storage unit 34. Further, the cutting point calculation unit 42a analyzes the NC command data stored in the NC command data storage unit 39 to obtain command coordinates, and determines the command model in the tool axis direction commanded by the NC command data. (Step ST1901). Next, the cutting point calculation unit 42a calculates cutting points between the arranged tool model and the CAD model (step ST1902). The cutting point calculation unit 42a calculates the cutting point by mathematically analyzing the tool model and the CAD model, similarly to the cutting point calculation unit 42 described in the first embodiment.
  • NC command data information is identification information of NC command data that commands command coordinates corresponding to a cutting point.
  • a sequence number or a management number corresponding to the sequence number is added to the commands included in the NC command data. Therefore, the cutting point calculation unit 42a adds these pieces of information as “NC command data information” to the cutting point.
  • FIG. 29 is a diagram illustrating an example of cutting points displayed by the display device 16 of the machining program analysis apparatus 1a according to the second embodiment. Specifically, the cutting points displayed by the display device 16 in step ST1807 of FIG. It is a figure which shows an example.
  • the cutting point display unit 44 is calculated in steps ST1803 to ST1806 in FIG. 27 and is displayed in FIG. 29 based on each cutting point stored in the cutting point storage unit 43 and attribute information added to the cutting point. I do.
  • FIG. 29 shows an example in which command coordinates commanded by NC command data and cutting points are displayed together with a CAD model.
  • black circles indicate command coordinates
  • black circles connected by lines indicate a tool path along which the tool moves according to NC command data.
  • a black square indicates an uncut cutting point
  • a black triangle indicates an excessive cutting point.
  • a white square indicates a cutting point to which no machining result attribute is added, that is, a cutting point where neither uncut nor excessive cutting has occurred.
  • the cutting point is based on the NC command data, the tool data representing the tool model of the tool used in machining, and the CAD data representing the machining shape of the workpiece.
  • it is determined whether there is uncut or overcut at each cutting point, and if a cutting point where uncut or overcut occurs is detected, the detected cutting point is left uncut and overcut. It was decided to display in a format different from the cutting points where none of these occurred. Thereby, the effect similar to the processing program analyzer 1 concerning Embodiment 1 can be acquired.
  • the machining program analysis apparatus 1a since the cutting point is calculated using the NC command data, compared with the machining program analysis apparatus 1 according to the first embodiment, an uncut portion or Cutting points where overcutting occurs can be detected and displayed with high accuracy.
  • Embodiment 3 The machining program analyzer 1 according to the first embodiment calculates a cutting point using the NC machining program, tool data, and CAD data, and the machining program analyzer 1 according to the second embodiment uses NC command data and tool data.
  • the cutting point is calculated using CAD data
  • the machining program analyzer according to the present embodiment calculates the cutting point using FB position data, tool data, and CAD data.
  • the machining program analyzer according to the third embodiment is referred to as a machining program analyzer 1b.
  • the configuration of the numerical controller having the machining program analyzer 1b according to the present embodiment is the same as that of the numerical controller according to the first embodiment. That is, the machining program analyzer 1 of the numerical controller 10 shown in FIG. 1 is replaced with the machining program analyzer 1b. Further, the configuration of the machining program analysis device 1b corresponds to a configuration in which the analysis unit 15 of the machining program analysis device 1 is replaced with the analysis unit 15b illustrated in FIG.
  • the machining program analysis device 1b performs processing according to the procedure shown in the flowchart shown in FIG. 2 in the same manner as the machining program analysis device 1, and calculates and displays cutting points. However, as described above, the machining program analyzer 1b calculates the cutting point using the FB position data, the tool data, and the CAD data. That is, the process in which the machining program analyzer 1b calculates the cutting point in step ST1006 shown in FIG. 2 is different from the process in which the machining program analyzer 1 calculates the cutting point.
  • the processing executed by the machining program analyzer 1b in other steps ST1001 to ST1005 and ST1007 is the same as the processing executed by the machining program analyzer 1 in each step.
  • FIG. 30 is a diagram illustrating a configuration example of the analysis unit 15b included in the machining program analysis device 1b according to the third embodiment.
  • the analysis unit 15b includes a tool data acquisition unit 33 that acquires tool data representing the shape of a tool used in machining, a tool data storage unit 34 that stores tool data, a CAD data acquisition unit 35 that acquires CAD data, A CAD data alignment unit 36 that aligns CAD data, a CAD data storage unit 37 that stores CAD data after alignment, an FB position data acquisition unit 40 that acquires FB position data, and FB FB position data storage unit 41 that stores position data, cutting point calculation unit 42b that calculates cutting points based on FB position data, tool data, and CAD data, a cutting point storage unit 43 that stores cutting points, and cutting A cutting point display unit 44 for displaying the points on the display device 16.
  • the analysis unit 15b replaces the cutting point calculation unit 42 of the analysis unit 15 according to the first embodiment illustrated in FIG. 3 with a cutting point calculation unit 42b.
  • the NC machining program acquisition unit 31 and the NC machining program storage unit 32 are deleted from the analysis unit 15, and the FB position data acquisition unit 40 and the FB position data storage unit 41 are added.
  • description of components other than the FB position data acquisition unit 40, the FB position data storage unit 41, and the cutting point calculation unit 42b is omitted.
  • FIG. 31 is a process in which the analysis unit 15b according to the third embodiment displays a cutting point based on the FB position data, that is, based on the FB position data, tool data, and CAD data in step ST1006 shown in FIG. It is a flowchart which shows the detail of the process which calculates a cutting point and displays a cutting point in step ST1007.
  • the FB position data acquisition unit 40 reads the FB position data from the FB position data storage area in the storage device, and the FB position data storage unit 41 stores (step ST2001).
  • the tool data acquisition unit 33 acquires the tool data of the tool used by the machine tool 20 from the tool DB 12 when the FB position data read in step ST2001 is generated in the machine tool 20, and this is acquired from the tool DB 12.
  • Data storage unit 34 stores it (step ST2002).
  • a method of knowing the tool used by the machine tool 20 when the FB position data is generated in the machine tool 20 a method of knowing by analyzing the NC machining program 100 can be considered.
  • the tool data acquisition unit 33 reads and analyzes the NC machining program 100 from the NC machining program storage area in the storage device or inquires the numerical control unit 11 to generate the FB position data in the machine tool 20. Information on the tool used by the machine tool 20 at times is acquired.
  • the cutting point calculation unit 42b adjusts the FB position data stored in the FB position data storage unit 41, the tool data stored in the tool data storage unit 34, and the CAD data storage unit 37.
  • a cutting point is calculated based on the completed CAD data (step ST2003).
  • the cutting point calculation unit 42b first analyzes the FB position data to calculate the coordinates of the path through which the tool has passed during processing (hereinafter referred to as passing coordinates). Similar to the command position described in the first embodiment, the passing coordinates obtained by analyzing the FB position data represent points on the path through which the tool passes during machining.
  • the cutting point calculation unit 42b calculates a cutting point using the calculated passing coordinates, tool data, and CAD data.
  • the cutting point calculation unit 42 of the analysis unit 15 uses the command position, the tool data, and the CAD data to cut the cutting point. This is the same as the process of calculating.
  • the difference between the cutting point calculation unit 42b and the cutting point calculation unit 42 is that the FB position data is analyzed to determine the passing coordinates existing on the tool path, or the NC machining program is analyzed to be present on the tool path.
  • the command position to be obtained is obtained.
  • FIG. 32 is a flowchart showing a procedure in which the cutting point calculation unit 42b calculates cutting points in step ST2003 of FIG.
  • the cutting point calculation unit 42 b first generates a tool model based on the tool data stored in the tool data storage unit 34. Further, the cutting point calculation unit 42b analyzes the FB position data stored in the FB position data storage unit 40 to obtain the passing coordinates, and arranges the tool model at the passing coordinates in the tool axis direction indicated by the FB position data. (Step ST2101). Next, the cutting point calculation unit 42b calculates cutting points between the arranged tool model and the CAD model (step ST2102). The cutting point calculation unit 42b calculates the cutting point by mathematically analyzing the tool model and the CAD model, similarly to the cutting point calculation unit 42 described in the first embodiment.
  • steps ST2004 and ST2005 shown in FIG. 31 is the same as the processing in steps ST1204 and ST1205 shown in FIG.
  • step ST2006 in FIG. 31 the cutting point calculation unit 42b adds the FB position data information to the cutting point.
  • FB position data information is identification information of FB position data indicating passing coordinates corresponding to a cutting point. Similar to the various commands described in the NC machining program, a sequence number or a management number corresponding to the sequence number is added to the FB position data. Therefore, the cutting point calculation unit 42b adds these pieces of information to the cutting point as “FB position data information”.
  • FIG. 33 is a diagram illustrating an example of cutting points displayed by the display device 16 of the machining program analysis apparatus 1b according to the third embodiment. Specifically, the cutting points displayed by the display device 16 in step ST2007 of FIG. It is a figure which shows an example.
  • the analysis unit 15b performs the display shown in FIG. 33 based on each cutting point calculated in steps ST2003 to ST2006 of FIG. 31 and stored in the cutting point storage unit 43 and attribute information added to the cutting point. .
  • FIG. 33 shows an example in which the passing coordinates indicated by the FB position data and the cutting points are displayed together with the CAD model.
  • the black circles indicate the passing coordinates
  • the black circles connected by lines indicate the path along which the tool has moved during machining.
  • a black square indicates an uncut cutting point
  • a black triangle indicates an excessive cutting point.
  • a white square indicates a cutting point to which no machining result attribute is added, that is, a cutting point where neither uncut nor excessive cutting has occurred.
  • the cutting point is based on the FB position data, the tool data representing the tool model of the tool used in machining, and the CAD data representing the machining shape of the workpiece. Is calculated, and it is determined whether there is uncut or overcut at each cutting point, and if a cutting point where uncut or overcut has occurred is detected, the detected cutting point is left uncut and overcut. It was decided to display in a format different from the cutting points where none of these occurred. Thereby, the effect similar to the processing program analyzer 1 concerning Embodiment 1 can be acquired.
  • FIG. 34 is a diagram showing a hardware configuration of the machining program analysis apparatus according to each embodiment of the present invention.
  • the hardware shown in FIG. 34 includes a processor 51 that performs arithmetic processing, a memory 52 that the processor 51 uses as a work area, a storage device 53 that stores a program for operating as a numerical control device or a program conversion device, and a user
  • An input device 54 that is an input interface between the communication device 56, a display device 55 that displays information to the user, and a communication device 56 that has a communication function with a controlled device or other numerical control device or other various devices.
  • the processor 51, the memory 52, the storage device 53, the input device 54, the display device 55, and the communication device 56 are connected by a data bus 50.
  • the processor 51 may be a processing device, an arithmetic device, a microprocessor, a microcomputer, a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or the like.
  • the memory 52 is a non-volatile or volatile semiconductor memory, such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable ROM), or an EEPROM (Electrically EPROM), or a magnetic disk. , Flexible disk, optical disk, compact disk, mini disk, or DVD (Digital Versatile Disc).
  • the machining program analysis apparatus when the machining program analysis device left uncut or overcut, a display indicating that is made corresponding to the cutting point, but the same display corresponds to the command position. You may make it carry out.
  • the machining program analysis apparatus includes any of a command position corresponding to a cutting point where an uncut portion is generated, a command position corresponding to a cutting point where an excessive cut is generated, an uncut portion, and an overcut portion.
  • the command position corresponding to the cutting point that has not occurred may be displayed in a visually recognizable format. Further, the uncut amount and overcut amount may be displayed in correspondence with the command position.
  • the machining program analyzer described in each embodiment can be realized by the processor 51 reading a program for operating as the machining program analyzer from the storage device 53 and executing it.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
  • 1, 1a, 1b Machining program analysis device 10 Numerical control device, 11 Numerical control unit, 12 Tool database (DB), 13 Axis drive unit, 14 Position data acquisition unit, 15, 15a, 15b Analysis unit, 16 Display device, 20 machine tools, 21 multiple drive shafts, 22 position detection unit, 31 NC machining program acquisition unit, 32 NC machining program storage unit, 33 tool data acquisition unit, 34 tool data storage unit, 35 CAD data acquisition unit, 36 CAD data Positioning unit, 37 CAD data storage unit, 38 NC command data acquisition unit, 39 NC command data storage unit, 40 FB position data acquisition unit, 41 FB position data storage unit, 42, 42a, 42b Cutting point calculation unit, 43 cutting Point storage unit, 44 cutting point display unit.

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Abstract

L'invention concerne un dispositif d'analyse de programme de traitement, comprenant : une unité de calcul de point de coupe (42) qui, sur la base de données de trajectoire d'outil qui représentent une trajectoire de mouvement d'un outil dans un processus qu'une machine-outil de commande numérique réalise sur un objet à traiter, de données d'outil qui représentent une forme de l'outil, et de données qui représentent une forme traitée de l'objet à traiter, calcule des points de coupe au niveau desquels l'outil coupe l'objet à traiter afin d'obtenir un objet traité ayant la forme traitée, et évalue l'occurrence d'une coupe insuffisante et l'occurrence d'une coupe excessive au niveau de chacun des points de coupe calculés ; et une unité d'affichage de points de coupe (44) qui affiche les points de coupe sur un dispositif d'affichage dans un format dans lequel les résultats de l'évaluation peuvent être visualisés.
PCT/JP2016/088987 2016-12-27 2016-12-27 Dispositif d'analyse de programme de traitement WO2018122986A1 (fr)

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WO2020021793A1 (fr) * 2018-07-24 2020-01-30 三菱電機株式会社 Dispositif de correction de trajet d'outil, procédé de correction de trajet d'outil et dispositif de commande numérique
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JPWO2021095170A1 (fr) * 2019-11-13 2021-05-20
WO2021095170A1 (fr) * 2019-11-13 2021-05-20 三菱電機株式会社 Dispositif de conversion de programme d'usinage, dispositif à commande numérique et procédé de conversion de programme d'usinage
JP7175403B2 (ja) 2019-11-13 2022-11-18 三菱電機株式会社 加工プログラム変換装置、数値制御装置および加工プログラムの変換方法
JP7286023B1 (ja) * 2022-01-06 2023-06-02 三菱電機株式会社 加工不良分析装置、加工システム、加工不良分析方法、および、加工方法
WO2023132039A1 (fr) * 2022-01-06 2023-07-13 三菱電機株式会社 Dispositif d'analyse de défaut d'usinage, système d'usinage, procédé d'analyse de défaut d'usinage et procédé d'usinage

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