WO2022254551A1 - プログラム作成装置 - Google Patents
プログラム作成装置 Download PDFInfo
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- WO2022254551A1 WO2022254551A1 PCT/JP2021/020746 JP2021020746W WO2022254551A1 WO 2022254551 A1 WO2022254551 A1 WO 2022254551A1 JP 2021020746 W JP2021020746 W JP 2021020746W WO 2022254551 A1 WO2022254551 A1 WO 2022254551A1
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- WIPO (PCT)
- Prior art keywords
- tool
- machining
- deburring
- removal
- workpiece
- Prior art date
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- 238000003754 machining Methods 0.000 claims abstract description 71
- 238000003825 pressing Methods 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 24
- 230000000007 visual effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 25
- 238000010586 diagram Methods 0.000 description 24
- 230000036544 posture Effects 0.000 description 16
- 238000005266 casting Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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Classifications
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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—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
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40937—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 part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of machining or material parameters, pocket machining
- G05B19/40938—Tool management
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/16—Programme controls
- B25J9/1656—Programme controls characterised by programming, planning systems for manipulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/005—Manipulators for mechanical processing tasks
- B25J11/006—Deburring or trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
- B25J13/085—Force or torque sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/02—Sensing devices
- B25J19/021—Optical sensing devices
- B25J19/023—Optical sensing devices including video camera 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
- 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
- G05B19/402—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 control arrangements for positioning, e.g. centring a tool relative to a hole in the workpiece, additional detection means to correct position
-
- 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
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40931—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 part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of geometry
- G05B19/40932—Shape input
-
- 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
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40931—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 part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of geometry
- G05B19/40935—Selection of predetermined shapes and defining the dimensions with parameter input
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37555—Camera detects orientation, position workpiece, points of workpiece
-
- 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
- G05B2219/45—Nc applications
- G05B2219/45151—Deburring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the present disclosure relates to a program creation device, and more specifically to a program creation device that creates an operation program for a removal processing robot such as deburring.
- a visual sensor is used to detect the ridge line as the deburring area and generate a deburring trajectory. Deburring is performed by moving the deburring tool along the deburring track.
- burrs can be removed.
- Deburring can be performed smoothly without interference such as contact between the deburring tool and the reference surface of the workpiece during deburring (see Patent Document 1, for example).
- the deburring tool may contact the reference surface during deburring. There is a risk that the reference surface will be damaged. Also, if the posture of the deburring tool does not match the shape of the workpiece, there is a possibility that a part of the ridge line as the deburring area may not be deburred. The same applies to removal processing other than deburring processing.
- the present disclosure is a program creation device for creating an operation program for a workpiece removal robot having a machining surface and a reference surface displaced from the machining surface, wherein the removal machining robot includes a removal machining tool
- the program creation device includes a position information acquisition unit that acquires position information regarding the positional relationship between the processing surface of the workpiece and the reference surface, a tool information storage unit that stores tool information regarding the removal processing tool, a program creation unit that creates the operation program for the removal machining robot based on the position information of the workpiece and the tool information of the removal machining tool, wherein the program creation unit creates the operation program for the removal machining tool;
- the program creating device selects a portion to be used for the removal machining tool so as to avoid interference with the reference surface of the workpiece.
- FIG. 1 is a schematic diagram showing the configuration of a deburring system including a programming device according to an embodiment of the present disclosure
- FIG. FIG. 2 is a schematic diagram showing an example of a deburring tool used in the deburring system of FIG. 1
- FIG. 2 is a schematic diagram showing an example of a deburring tool used in the deburring system of FIG. 1
- FIG. 2 is a schematic diagram showing an example of a deburring tool used in the deburring system of FIG. 1
- FIG. 2 is a schematic diagram showing an example of a deburring tool used in the deburring system of FIG. 1
- FIG. 1 is a schematic diagram showing the configuration of a deburring system including a programming device according to an embodiment of the present disclosure
- FIG. FIG. 2 is a schematic diagram showing an example of a deburring tool used in the deburring system of FIG. 1
- FIG. 2 is a schematic diagram showing an example of a deburring tool used in the deburring system of FIG. 1
- FIG. 4 is a schematic diagram showing the positional relationship between the deburring tool and the work when the machining surface of the work and the reference surface are parallel to each other and there is a sufficient level difference between the machining surface of the work and the reference surface.
- FIG. 4 is a schematic diagram showing interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface of FIG. 3 ;
- FIG. 4 is a schematic diagram showing an example for avoiding interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface of FIG. 3 ;
- FIG. 4 is a schematic diagram showing another example for avoiding interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface of FIG. 3 ;
- FIG. 4 is a schematic diagram showing the positional relationship between the deburring tool and the work when the work surface and the reference surface of the work are perpendicular to each other and there is a sufficient level difference between the ridge line of the work surface and the reference surface.
- FIG. 8 is a schematic diagram showing interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface of FIG.
- FIG. 7 is a schematic diagram showing an example for avoiding interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface of FIG. 7;
- FIG. 8 is a schematic diagram showing another example for avoiding interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface of FIG. 7;
- FIG. 4 is a flow chart relating to creation of an operation program for avoiding interference between the deburring tool and the work when there is not a sufficient level difference between the machining surface of the work and the reference surface.
- FIG. 4 is a schematic diagram showing detection of a step between a machining surface of a workpiece and a reference surface using a three-dimensional visual sensor;
- FIG. 10 is a schematic diagram showing a portion that cannot be deburred based on the detected level difference;
- FIG. 10 is a schematic diagram showing a work in which a part of a step has a protrusion or the like;
- FIG. 15 is a schematic diagram showing a first example for deburring the work of FIG. 14;
- FIG. 15 is a schematic diagram showing a second example for deburring the work of FIG. 14;
- FIG. 15 is a schematic diagram showing a third example for deburring the workpiece of FIG. 14;
- FIG. 15 is a schematic diagram showing a fourth example for deburring the work of FIG.
- FIG. 15 is a schematic diagram showing a fifth example for deburring the work of FIG. 14;
- FIG. 15 is a schematic diagram showing a first part when changing the use site of the deburring tool for deburring the work of FIG. 14;
- FIG. 15 is a schematic diagram showing a second part when changing the use site of the deburring tool for deburring the work of FIG. 14;
- FIG. 1 is a schematic diagram showing the configuration of a deburring system 1 including a programming device 20 according to an embodiment of the present disclosure.
- the deburring system 1 is a system for deburring a work W1.
- the deburring system 1 of this embodiment includes a robot 2, a deburring tool 3 held at the tip of the robot 2, a force sensor 4 provided between the robot 2 and the deburring tool 3, and a three-dimensional deburring system.
- a visual sensor 5 (see FIG. 12) and a robot control device 10 for controlling the robot 2 are provided.
- the programming device 20 forms part of the robot control device 10 .
- a vertical multi-joint type robot is typically used as the robot 2, but it is not particularly limited, and for example, a scalar type robot, a parallel link type robot, an orthogonal coordinate type robot, etc. may be used.
- the deburring tool 3 for example, a grinder, a reamer, etc. can be used.
- the shape of the deburring tool 3 can be appropriately selected from, for example, a cylindrical shape, a tapered shape, a cannonball shape, a conical shape, and the like. This will be discussed later.
- the force sensor 4 is a sensor that measures triaxial force and torque. That is, the force sensor 4 can detect the force acting on the deburring tool 3 as a three-dimensional vector.
- the three-dimensional visual sensor 5 detects and acquires the step W14 between the machining surface W11 of the workpiece W1 and the reference surface W13.
- the robot control device 10 controls the deburring process in which the robot 2 moves the deburring tool 3 along the ridge line of the work W1 to remove burrs from the work W1.
- Deburring processing is an example of removal processing. Another example is chamfering.
- the robot control device 10 includes a robot control unit 11, a position information acquisition unit 12, a tool information storage unit 13, a pressing force acquisition unit 14, a progress speed acquisition unit 15, and a program creation unit 16. , provided.
- the position information acquisition unit 12 , the tool information storage unit 13 , the pressing force acquisition unit 14 , the progress speed acquisition unit 15 , and the program creation unit 16 constitute the program creation device 20 .
- the robot control device 10 can be realized by introducing an appropriate operation program into one or more computer devices having a CPU, memory, and the like.
- Each component of the robot controller 10 described above is a categorization of the functions of the robot controller 10, and may not be clearly distinguishable in terms of its physical structure and program structure. Also, the robot controller 10 may have additional components that implement other functions.
- the robot control unit 11 moves the deburring tool 3 along the ridgeline of the work W1 by operating the robot 2 according to the teaching data.
- the position information acquisition unit 12 acquires the positional relationship (for example, a step as a displacement amount) between the machining surface W11 of the workpiece W1 and the reference surface W13. Specifically, the step is calculated from shape information (CAD information, etc.) of the workpiece W1, or detected using a three-dimensional visual sensor.
- CAD information shape information
- the tool information holding unit 13 holds information such as the shape of the deburring tool 3.
- Shape is a concept that includes size. Specifically, for each shape of the deburring tool 3, the tool information holding unit 13 stores a length L1 along the axis from the tool middle portion 3C to the tool tip 3E, and a length L1 from the tool center portion 3C to the tool tip 3E, length L2 along the axis from the tool middle part 3C to the tool rear end 3A along the axis and the vertical direction L4; length from the tool rear 3B to the tool rear end 3A along the axis and the vertical direction L5, etc. are retained.
- the tool information holding unit 13 stores the vertical component L3 of the length L1 along the axis line from the tool middle part 3C to the tool tip 3E according to the inclination of the attitude of the deburring tool 3 for each shape of the deburring tool 3, A horizontal component L6 of a length L4 along the direction perpendicular to the axis from the tool middle portion 3C to the tool rear end 3A is calculated and held.
- the pressing force acquisition unit 14 acquires the pressing force of the deburring tool 3 against the workpiece W1.
- the pressing force acquired by the pressing force acquiring unit 14 is preferably vector data including direction information.
- the pressing force acquisition unit 14 may be configured to acquire the pressing force of the deburring tool 3 from the force sensor 4 provided on the robot 1, for example.
- the advancing speed acquisition unit 15 acquires the advancing speed of the deburring tool 3 by the robot 2 .
- the traveling speed acquisition unit 15 can be configured to acquire, for example, the traveling speed of the deburring tool 3 by the robot 2 from the robot control unit 11 .
- the program creation unit 16 acquires the position information acquired by the position information acquisition unit 12, the tool information held by the tool information holding unit 13, the pressing force acquired by the pressing force acquisition unit 14, the progress speed acquired by the progress speed acquisition unit 15, and the like. Based on the information, the robot control unit 11 creates an operation program for operating the robot 2 .
- the program creating unit 16 will be described later.
- FIG. 2A to 2D show types of shapes of the deburring tool 3, FIG. 2A showing a cylindrical deburring tool 3-1, FIG. 2B showing a tapered deburring tool 3-2, and FIG. 2C. shows a cannonball-shaped deburring tool 3-3, and FIG. 2D shows a conical-shaped deburring tool 3-4.
- the deburring tool 3 will be described using a conical deburring tool 3-4 exemplified in the following embodiments, but the other deburring tools 3-1 to 3-3 can be similarly described.
- the deburring tool 3 has three parts in the axial direction from the root to the tip: a tool rear part 3B close to the tool rear end 3A, a tool middle part 3C that is the middle part of the tool, and a tool tip part 3D close to the tool tip 3E. has two regions.
- the tool rear portion 3B has a diameter D1
- the tool middle portion 3C has a diameter D2
- the tool tip portion 3D has a diameter D3. Deburring is usually performed using the tool middle portion 3C.
- the workpiece W1 has a machined surface W11 and a reference surface (for example, casting surface) W13 displaced from the machined surface W11.
- a machined surface W11 having a ridge line W12 is parallel to a reference surface (for example, casting surface) W13 and protrudes from the reference surface W13 by a step W14.
- Such deburring of the workpiece W1 with a stepped portion is normally carried out as follows according to a standard type 1 operation program created by the program creation section 16, using the tool middle portion 3C of the deburring tool 3 as a working portion.
- the deburring tool 3 (for example, a conical deburring tool 3-4) has its axis perpendicular to the processing surface W11 of the workpiece W1. Hold position 3. The tool middle portion 3C of the deburring tool 3 is brought into contact with the ridgeline W12 of the processing surface W11. While rotating the deburring tool 3 around the axis, the deburring tool 3 is advanced along the edge line W12 of the processing surface W11 around the processing surface W11.
- FIG. 5 shows a first example for avoiding interference between the deburring tool 3 and the work W1 in such a case.
- the deburring process is performed as follows by a tip-use type operation program created by the program creation unit 16, using the tool tip 3D of the deburring tool 3 as a part to be used.
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is perpendicular to the processing surface W11 of the work W1.
- a tip portion 3D of the deburring tool 3 is brought into contact with the ridge line W12 of the processing surface W11.
- the deburring tool 3 is advanced along the edge line W12 of the processing surface W11 around the processing surface W11.
- deburring can be performed even when the length L2 along the axis from the tool tip 3D to the tool tip 3E of the deburring tool 3 is shorter than the step W14 (W14>L2).
- FIG. 6 A second example for avoiding interference between the deburring tool 3 and the work W1 is shown in FIG.
- the deburring process is performed by an operation program of tilt type 1 created by the program creating unit 16, in which the direction of the axis of the deburring tool 3 is tilted and the tool middle portion 3C of the deburring tool 3 is used as a use site. , is done as follows:
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is inclined from perpendicular to the processing surface W11 of the work W1.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the ridgeline W12 of the processing surface W11.
- the deburring tool 3 is advanced along the edge line W12 of the processing surface W11 around the processing surface W11.
- deburring can be performed even in a range where the vertical component L3 of the length L1 along the axis from the tool middle portion 3C to the tool tip 3E of the deburring tool 3 is shorter than the step W14 (W14>L3). .
- a third example for avoiding interference between the deburring tool 3 and the work W1 will be described.
- deburring tool 3 By replacing the deburring tool 3 with a compact deburring tool 3 which is one size smaller (smaller in size) and whose length along the axis from the tool middle portion 3C to the tool tip 3E is shorter than the step W14, deburring can be performed. Can be processed.
- a tool is, for example, the deburring tool 3 shown on the right side of FIG.
- the deburring process of the second type work W2 will be described with reference to FIGS. 7 to 10.
- the workpiece W2 has a machined surface W21 and a reference surface (for example, casting surface) W23 displaced from the machined surface W21.
- the machined surface W21 is perpendicular to the reference surface (for example, casting surface) W23, and the ridgeline W22 of the machined surface W21 protrudes from the reference surface W23 by a step W24.
- Such deburring of the workpiece W2 with a stepped portion is normally carried out as follows according to a standard type 2 operation program created by the program creating section 16, using the tool middle portion 3C of the deburring tool 3 as a used portion.
- the deburring tool 3 (for example, a conical deburring tool 3-4) is positioned such that its axis is perpendicular to the processing surface W21 of the workpiece W2. keep the attitude of The tool middle portion 3C of the deburring tool 3 is brought into contact with the ridgeline W22 of the processing surface W21. While rotating the deburring tool 3 around the axis, the deburring tool 3 is advanced along the edge line W22 of the processing surface W21 around the processing surface W21.
- FIG. 9 shows a first example for avoiding interference between the deburring tool 3 and the work W2 in such a case.
- the deburring process is performed as follows according to the operation program of the rear portion use type created by the program creating section 16, using the tool rear portion 3B of the deburring tool 3 as the portion to be used.
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is perpendicular to the processing surface W21 of the work W2.
- the tool rear portion 3B of the deburring tool 3 is brought into contact with the ridge line W22 of the processing surface W21.
- the deburring tool 3 is advanced along the edge line W22 of the processing surface W21 around the processing surface W21.
- deburring can be performed even in a range where the length L5 along the direction perpendicular to the axis line from the tool rear portion 3B to the tool rear end 3A of the deburring tool 3 is shorter than the step W24 (W24>L5). .
- FIG. 10 A second example for avoiding interference between the deburring tool 3 and the work W2 is shown in FIG.
- the deburring process is performed by the tilt type 2 operation program created by the program creation section 16, in which the direction of the axis of the deburring tool 3 is tilted and the tool middle portion 3C of the deburring tool 3 is used as a use site. , is done as follows:
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is inclined from perpendicular to the processing surface W21 of the work W2.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the ridgeline W22 of the processing surface W21.
- the deburring tool 3 is advanced along the edge line W22 of the processing surface W21 around the processing surface W21.
- deburring can be performed even in a range where the horizontal component L6 of the length L4 along the direction perpendicular to the axis line from the tool middle portion 3C to the tool rear end 3A of the deburring tool 3 is shorter than the step W24 (W24>L6). It can be carried out.
- the deburring tool 3 is replaced with a small deburring tool 3 whose length along the direction perpendicular to the axis from the tool middle part 3C to the tool rear end 3A is shorter than the step W24 because it is one size smaller (smaller in size). By doing so, deburring can be performed.
- a tool is, for example, the deburring tool 3 shown on the right side of FIG.
- the program creation unit 16 creates each type of operation program described above. Creation includes modifications and changes to existing operating programs.
- FIG. 11 shows a flow chart relating to creation of an operation program by the program creating section 16 .
- the program creation unit 16 determines standard type 1, front use type and tilt type 1 or standard type 2, rear use type and tilt type 2 of the operation program according to the degree of the step of the workpiece.
- the program creation unit 16 determines the step W14, the length L1 along the axis from the tool middle portion 3C to the tool tip 3E of the deburring tool 3, and the distance from the tip 3D to the tool tip 3E. and the vertical component L3 of the length L1 along the axis from the tool middle portion 3C to the tool tip 3E, W14>L1, W14>L2, W14> L3 is determined sequentially.
- the program creation unit 16 includes a step W24, a length L4 along the axis line from the tool middle portion 3C to the tool rear end 3A of the deburring tool 3, and a length L4 along the direction perpendicular to the tool rear end 3B to the tool rear end 3A.
- W24>L4 Based on the length L5 along the axis and the vertical direction, and the horizontal component L6 of the length L4 along the axis and the vertical direction from the tool middle part 3C to the tool rear end 3A, W24>L4, W24>L5, W24> L6 is determined sequentially.
- step S1 of FIG. 11 the program creation unit 16 determines W14>L1 or W24>L4, and if YES, the process proceeds to step S2. In step S2, standard type 1 or standard type 2 operation is performed. If NO, the process proceeds to step S3.
- step S3 the program creation unit 16 determines W14>L2 or W24>L5, and if YES, the process proceeds to step S4.
- Step S4 performs a front use type or rear use type operation. If NO, the process proceeds to step S5.
- step S5 the program creation unit 16 determines W14>L3 or W24>L6, and if YES, the process proceeds to step S6. In step S6, tilt type 1 or tilt type 2 operation is performed. If NO, the process ends.
- the position information acquisition unit 12 detects the machining surface of the workpiece due to the protrusion. You may acquire the part which removal processing is impossible or difficult in by calculation. Details are given below.
- the three-dimensional visual sensor 5 is used to detect the presence or absence of the step W14 of the workpiece W1 and the dimension of the step W14. Further, the presence or absence of the step W14 of the work W1 and the dimension of the step W14 may be calculated from the shape information (CAD information) of the work W1. The same applies to the step W24 of the work W2.
- CAD information shape information
- FIG. 13 shows a third type work W3.
- the workpiece W3 has a machined surface W31 and a reference surface (for example, casting surface) W33 displaced from the machined surface W31.
- a machined surface W31 having a ridge line W32 is parallel to a reference surface (for example, a casting surface) W33, and protrudes from the reference surface W33 by a step W34.
- the workpiece W3 further has a protrusion W35 protruding from the reference plane W33.
- the protrusion W35 protrudes from the reference plane W33 by a height W36.
- a protrusion height W36 of the protrusion W35 approximates a step W34 between the processing surface W31 and the reference surface W33. That is, on the ridge line W32 of the processing surface W31, the portion W320 adjacent to the projection W35 has almost no level difference with the upper surface (projection surface) W37 of the projection W35.
- FIG. A portion W320 of the ridge line W32 adjacent to the protrusion W35 is an example of "a portion where removal processing is impossible or difficult on the machining surface of the workpiece due to the protrusion".
- the presence or absence of such a portion that cannot be deburred can also be detected using the three-dimensional visual sensor 5, as shown in FIG. Moreover, the presence or absence of a portion of the work W3 that cannot be deburred may be calculated from the shape information (CAD information) of the work W3.
- CAD information shape information
- the deburring process of the work W1 having such a portion that cannot be deburred is performed by a standard type 1 operation program created by the program creation unit 16, using the tool middle portion 3C of the deburring tool 3 as a used portion. Only partly possible is done, for example, as shown in FIG.
- the second displacement amount between the machining surface of the work and the projecting surface parallel to the reference surface of the projecting portion is smaller than the first displacement amount between the machining surface of the work and the reference surface.
- FIG. 14 shows a fourth type work W4.
- the workpiece W4 has a machined surface W41, a reference surface (for example, casting surface) W43 displaced from the machined surface W41, and further has a projecting portion W45 projecting from the reference surface W43.
- the work W4 has a step W46 between the upper surface (projection surface) W47 of the protrusion W45 and the processing surface W41. This step W46 is smaller than the step W44 between the machined surface W41 and the reference surface W43 (W46 ⁇ W44).
- W46 ⁇ W44 is "the second displacement between the machining surface of the workpiece and the projecting surface parallel to the reference surface of the projecting portion compared to the first displacement amount between the machining surface of the workpiece and the reference surface. This is an example of “the amount of displacement is small”.
- the “protruding surface W47 of the protruding portion W45” is an example of “a protruding surface having the second displacement amount of the protruding portion”.
- FIG. 15 in the first embodiment of the deburring process of the work W4, deburring is performed on all portions of the ridge line W42 in accordance with the smallest step (in this case, the step W46 of the projecting portion W45). Select the same machined portion of tool 3.
- the deburring process of the work W4 in the first embodiment is performed by a tip-use type operation program created by the program creation unit 16, using the tool tip 3D of the deburring tool 3 as a used portion, as follows. It is done in this way.
- the axis line of the deburring tool 3 shown on the right side of FIG. Keep the posture of the deburring tool 3 so that The tool tip 3D of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41. While rotating the deburring tool 3 around the axis, the deburring tool 3 is advanced around the processing surface W41 along the ridgeline W42 of the processing surface W41. As a result, one deburring tool 3 can be used to deburr the entire edge line W42.
- the same tool posture is selected according to the smallest step (in this case, the step W46 of the projecting portion W45).
- Such a deburring process of the second embodiment of the work W4 is created by the program creation section 16 in which the direction of the axis of the deburring tool 3 is inclined and the tool middle portion 3C of the deburring tool 3 is used as a use site.
- the operation is performed as follows.
- the axis of the deburring tool 3 shown on the right side of FIG. The posture of the deburring tool 3 is maintained so as to incline from.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41.
- the deburring tool 3 is advanced around the processing surface W41 along the ridgeline W42 of the processing surface W41.
- one deburring tool 3 can be used to deburr the entire edge line W42.
- a relatively small deburring tool 3 is used on the small step (in this case, the step W46 of the projecting portion W45).
- a relatively large deburring tool 3 is selected for the large step (in this case, the step W44 other than the protrusion W45).
- Deburring of the workpiece W4 in the third embodiment is performed as follows by a standard type 1 operation program created by the program creation section 16, using the tool middle portion 3C of the deburring tool 3 as a working portion. is done.
- a relatively small deburring tool 3 is used for small steps so that the deburring tool 3 shown on the right side of FIG. 17 does not interfere with the protrusion W45.
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is perpendicular to the processing surface W41 of the work W4.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41.
- the deburring tool 3 is rotated about its axis, the deburring tool 3 is advanced along a ridge line W42 of the processing surface W41 along a part of the circumference of the processing surface W41 (small step portion).
- a relatively large deburring tool 3 is used for the large step portion shown on the left side of FIG. Following the example of FIG. 3, the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is perpendicular to the processing surface W41 of the work W4.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41. While the deburring tool 3 is rotated about its axis, the deburring tool 3 is advanced along the ridge line W42 of the processing surface W41 along the remaining portion (large step portion) around the processing surface W41.
- the front portion 3D of the deburring tool 3 is attached to the small step (in this case, the step W46 of the projecting portion W45).
- the central portion 3C of the deburring tool 3 for the large step in this case, the step W44 other than the protrusion W45.
- the tool tip 3D of the deburring tool 3 is used as a part to be used for a small step portion.
- the standard type 1 operation program created by the program creation unit 16 using the tool middle part 3C of the deburring tool 3 as a used part, is performed as follows. .
- the posture of the deburring tool 3 is maintained so as to be perpendicular to the plane W41.
- the tool tip 3D of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41.
- the deburring tool 3 is rotated about its axis, the deburring tool 3 is advanced along a ridge line W42 of the processing surface W41 along a part of the circumference of the processing surface W41 (small step portion).
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is perpendicular to the processing surface W41 of the work W4, following the example of Fig. 3 .
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41. While the deburring tool 3 is rotated about its axis, the deburring tool 3 is advanced along the ridge line W42 of the processing surface W41 along the remaining portion (large step portion) around the processing surface W41.
- the fifth embodiment of the deburring process of the workpiece W4 includes a portion with a small step (in this case, a step W46 in the portion of the protrusion W45) and a portion with a large step (in this case, a portion other than the protrusion W45). Different postures of the deburring tool are selected for the portion of step W44).
- the direction of the axis of the deburring tool 3 is tilted in a small stepped portion, and the tool middle portion 3C of the deburring tool 3 is used.
- the tilt type 1 operation program created by the program creating unit 16 and the operation program of the standard type 1 created by the program creating unit 16, using the tool middle part 3C of the deburring tool 3 for large steps.
- the operation program performs as follows.
- the posture of the deburring tool 3 is maintained so as to be inclined from the vertical to the plane W41.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41.
- the deburring tool 3 is rotated about its axis, the deburring tool 3 is advanced along a ridge line W42 of the processing surface W41 along a part of the circumference of the processing surface W41 (small step portion).
- the posture of the deburring tool 3 is maintained so that the axis of the deburring tool 3 is perpendicular to the processing surface W41 of the work W4.
- the tool middle portion 3C of the deburring tool 3 is brought into contact with the edge line W42 of the processing surface W41.
- the deburring tool 3 is rotated about its axis, the deburring tool 3 is advanced along the ridge line W42 of the processing surface W41 along the remaining portion (large step portion) around the processing surface W41.
- the program creation unit 16 when changing the used portion or the shape of the removal machining tool 3 in the machining region of the machining surface corresponding to the projecting surface having the second displacement amount of the projecting portion, changes the machining surface to The advancing speed and pressing force of the removal processing robot 2 in the processing region, and the advancing speed and pressing force of the removal processing robot 2 in the remaining processing region excluding the processing region so that a uniform processing depth can be obtained in the entire processing region. You can adjust the force. Details are given below.
- the program creation unit 16 obtains information on the progress speed (V1, V2) of the deburring tool 3 obtained from the progress speed acquisition unit 15, and the pressing force (F1, Based on the information in F2), adjust as follows.
- FIG. 20 shows the deburring tool 3 when processing a portion with a large step as shown on the left side of FIG.
- This deburring tool 3 is used in the central part 3C, and therefore the operation program of the standard type 1 is used as a base. Further, the advancing speed of the deburring tool 3 by the robot 2 is V1, and the pressing force of the deburring tool 3 by the robot 2 is F1. This state is applied to all parts other than the protrusion W45.
- FIG. 21 shows the deburring tool 3 when processing a portion with a small step as shown on the right side of FIG.
- the part to be used for this deburring tool 3 is the tip 3D, so the operation program for the tip use type is based.
- the advancing speed of the deburring tool 3 by the robot 2 is V2
- the pressing force of the deburring tool 3 by the robot 2 is F2. This state is applied only to the edge line W42 of the workpiece W4 corresponding to the portion between both ends of the projecting surface W47 of the projecting portion W45.
- the ridge line W42 of the workpiece W4 corresponding to the portion between both ends of the projecting surface W47 of the projecting part W45 is an example of "the machining area of the machining surface corresponding to the projecting surface having the second displacement amount of the projecting part”.
- the deburring tool 3 rotates around the shaft at a constant speed
- the central portion 3C of the deburring tool 3 in FIG. 20 rotates once
- the tip portion 3D of the deburring tool 3 in FIG. do. Therefore, the length of contact of the central portion 3C with the ridgeline W42 of the work W4 during one rotation of the deburring tool 3 is longer than the length of contact of the tip portion 3D with the ridgeline W42 of the work W4. That is, the amount of processing is larger when processing with the central portion 3C of the deburring tool 3 than when processing with the tip portion 3D.
- the programming unit 16 adjusts the speed of movement of the deburring tool 3 by the robot 2 so that the amount of processing is uniform between when the central portion 3C of the deburring tool 3 and when using the tip portion 3D of the deburring tool 3. (V1, V2) or pressing force (F1, F2) is adjusted.
- the programming section 16 determines the advancing speed V1 of the deburring tool 3 by the robot 2 when using the central portion 3C of the deburring tool 3 as The speed V2 is set higher than the advancing speed V2 of the deburring tool 3 by the robot 2 when using the tip portion 3D of No. 3 (V1>V2).
- the programming section 16 sets the pressing force F1 of the deburring tool 3 by the robot 2 when using the central portion 3C of the deburring tool 3 to the tip portion 3D of the deburring tool 3. is smaller than the pressing force F2 of the deburring tool 3 by the robot 2 in the case of using (F1 ⁇ F2).
- a fourth type work W4 is obtained by adding a projecting portion W45 to the first type work W1 shown in FIGS.
- various embodiments can also be considered for a type of work in which protrusions are added to the second type of work W2 shown in FIG.
- deburring of the work has been described.
- the present invention can be similarly applied to any removal process other than deburring.
- Removal processing is typically contact removal processing, such as cutting, grinding, and polishing.
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Abstract
Description
ワークW4のバリ取り加工の第1の実施形態は、図15に示すように、最も小さい段差(この場合は突出部W45の部分の段差W46)に合わせて、稜線W42の全ての部分でバリ取りツール3の同じ加工部位を選択する。
2 ロボット
3 バリ取りツール(除去加工ツール)
4 力覚センサ
5 3次元視覚センサ
10 ロボット制御装置
11 ロボット制御部
12 位置情報取得部
13 ツール情報保持部
14 押付力取得部
15 進行速度取得部
16 プログラム作成部
20 プログラム作成装置
W1、W2、W3、W4 ワーク
W11、W21、W31、W41 加工面
W13、W23、W33、W43 基準面
W14、W24、W34、W44、W46 段差
W35、W45 突出部
W37、W47 突出面
Claims (6)
- 加工面と、加工面から変位した基準面とを有するワークの除去加工用ロボットの動作プログラムを作成するプログラム作成装置であって、
前記除去加工用ロボットは、除去加工ツールを備え、
前記プログラム作成装置は、
前記ワークの前記加工面と前記基準面との間の位置関係に関する位置情報を取得する位置情報取得部と、
前記除去加工ツールに関するツール情報を保持するツール情報保持部と、
前記ワークの前記位置情報及び前記除去加工ツールの前記ツール情報に基づいて、前記除去加工用ロボットの前記動作プログラムを作成するプログラム作成部と、を備え、
前記プログラム作成部は、前記除去加工ツールと前記ワークの前記基準面との干渉を回避するように、前記除去加工ツールの使用部位を選択する、プログラム作成装置。 - 前記ツール情報は、前記除去加工ツールの形状情報及び姿勢情報を含み、
前記プログラム作成部は、前記除去加工ツールの前記使用部位及び姿勢を選択する、請求項1に記載のプログラム作成装置。 - 前記ワークの前記加工面と前記基準面との間の前記位置関係は、前記ワークの形状情報に基づく計算によって取得するか、又は3次元視覚センサによる検出によって取得する、請求項1又は2に記載のプログラム作成装置。
- 前記ワークの形状情報又は前記3次元視覚センサによって取得した前記位置情報において前記ワークの前記基準面に突出部が検出された場合、前記位置情報取得部は、前記突出部に起因して前記ワークの前記加工面において除去加工が不可能な部分又は困難な部分を計算によって取得する、請求項3に記載のプログラム作成装置。
- 前記ワークの前記加工面と前記基準面との間の第1の変位量に比べて、前記ワークの前記加工面と前記突出部における前記基準面に平行な突出面との間の第2の変位量が小さいことに起因して、前記突出部の前記第2の変位量を有する前記突出面に対応する前記加工面の加工領域において除去加工が困難な部分が取得された場合、前記プログラム作成部は、除去加工が困難な前記部分において、前記第1の変位量と前記第2の変位量との差の大きさに応じて、前記除去加工ツールの使用部位を変更するか、前記除去加工ツールの姿勢を変更するか、又は前記除去加工ツールの形状を変更する、請求項4に記載のプログラム作成装置。
- 前記突出部の前記第2の変位量を有する前記突出面に対応する前記加工面の加工領域において、前記除去加工ツールの使用部位又は形状を変更する場合、前記プログラム作成部は、前記加工面の全加工領域において均一な加工深さが得られるように、前記加工領域における前記除去加工用ロボットの進行速度及び押付力と、前記加工領域を除く残りの加工領域における前記除去加工用ロボットの進行速度及び押付力とを調整する、請求項5に記載のプログラム作成装置。
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JP2023525193A JPWO2022254551A1 (ja) | 2021-05-31 | 2021-05-31 | |
US18/553,184 US20240184266A1 (en) | 2021-05-31 | 2021-05-31 | Program creation device |
PCT/JP2021/020746 WO2022254551A1 (ja) | 2021-05-31 | 2021-05-31 | プログラム作成装置 |
CN202180096882.4A CN117203590A (zh) | 2021-05-31 | 2021-05-31 | 程序制作装置 |
DE112021007208.0T DE112021007208T5 (de) | 2021-05-31 | 2021-05-31 | Programmerstellungsvorrichtung |
TW111117843A TW202247962A (zh) | 2021-05-31 | 2022-05-12 | 程式製作裝置 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000075914A (ja) * | 1998-09-03 | 2000-03-14 | Kawasaki Heavy Ind Ltd | 産業用ロボットの作業経路作成方法および装置 |
JP2010182210A (ja) * | 2009-02-06 | 2010-08-19 | Fanuc Ltd | ロボット教示プログラム修正装置 |
JP2016101644A (ja) * | 2014-11-28 | 2016-06-02 | ファナック株式会社 | 加工動作をロボットに教示するロボットプログラミング装置 |
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JP4347386B2 (ja) | 2008-01-23 | 2009-10-21 | ファナック株式会社 | 加工用ロボットプラグラムの作成装置 |
-
2021
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- 2021-05-31 JP JP2023525193A patent/JPWO2022254551A1/ja active Pending
- 2021-05-31 DE DE112021007208.0T patent/DE112021007208T5/de active Pending
- 2021-05-31 CN CN202180096882.4A patent/CN117203590A/zh active Pending
- 2021-05-31 WO PCT/JP2021/020746 patent/WO2022254551A1/ja active Application Filing
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2022
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000075914A (ja) * | 1998-09-03 | 2000-03-14 | Kawasaki Heavy Ind Ltd | 産業用ロボットの作業経路作成方法および装置 |
JP2010182210A (ja) * | 2009-02-06 | 2010-08-19 | Fanuc Ltd | ロボット教示プログラム修正装置 |
JP2016101644A (ja) * | 2014-11-28 | 2016-06-02 | ファナック株式会社 | 加工動作をロボットに教示するロボットプログラミング装置 |
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DE112021007208T5 (de) | 2024-01-04 |
US20240184266A1 (en) | 2024-06-06 |
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