WO2023073958A1 - プログラム作成装置、制御装置、及び機械システム - Google Patents
プログラム作成装置、制御装置、及び機械システム Download PDFInfo
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- WO2023073958A1 WO2023073958A1 PCT/JP2021/040135 JP2021040135W WO2023073958A1 WO 2023073958 A1 WO2023073958 A1 WO 2023073958A1 JP 2021040135 W JP2021040135 W JP 2021040135W WO 2023073958 A1 WO2023073958 A1 WO 2023073958A1
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- 206010034719 Personality change Diseases 0.000 description 21
- 230000015654 memory Effects 0.000 description 11
- 210000000707 wrist Anatomy 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 238000011960 computer-aided design Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
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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
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35097—Generation of cutter path, offset curve
Definitions
- the present invention relates to programming technology or control technology for machines, and more particularly to programming devices, control devices, and machine systems.
- the programmer manually jogs the machine and adjusts the teaching points on the movement path of the control target part of the machine one by one.
- a geometric model of a machine, tool, workpiece, etc. such as a CAD (computer aided design) model, is placed in virtual space, and the program creator jogs the geometric model of the machine to adjust teaching points one by one. Teaching by hand.
- a technique for easily creating a machine operation program using a shape model such as automatically generating a program.
- Patent Document 2 the posture of a tool attached to the tip of an industrial robot is calculated so as to correspond to a perpendicular direction vector perpendicular to the work surface at each teaching point, and the calculated posture of the tool is indefinite. is detected, the detected teaching point is set as a singular point, and the posture of the tool at the singular point is recalculated to determine the posture of the tool at each teaching point.
- Patent Document 3 an angle formed by a line segment extending from teaching point P-1 on the upstream side of the movement path to teaching point P at which the speed should be set and a line segment extending from teaching point P to teaching point P+1 on the downstream side
- ⁇ is large
- the speed vP is reduced to the first condition speed v1
- the posture of the teaching point P greatly changes from the posture of the robot at the teaching point P ⁇ 1 on the upstream side of the movement path
- the speed Reducing vP to the second condition speed is described.
- the purpose of the present invention is to provide a highly safe and reliable machine programming technology or control technology.
- One aspect of the present disclosure includes an operation instruction adjusting unit that adjusts an operation instruction in an operation program of the machine based on a change in the posture of the controlled area per unit distance or unit time on the movement path of the controlled area of the machine.
- a programming device is provided.
- Another aspect of the present disclosure provides a program creation device that includes a section detection unit that detects a section in which the change in posture of the controlled part per unit distance or unit time in the movement path of the controlled part of the machine is equal to or greater than a threshold. do.
- Another aspect of the present disclosure is an operation command adjusting unit that adjusts an operation command of the machine based on a change in the posture of the controlled part per unit distance or unit time in the movement path of the controlled part of the machine; and a controller for controlling operation of the machine according to.
- Yet another aspect of the present disclosure is a machine, an action command adjusting unit that adjusts an action command of the machine based on a change in the posture of the controlled part per unit distance or unit time on the movement path of the controlled part of the machine; and a controller that controls the operation of the machine according to the coordinated operation instructions.
- the control device since the control device includes the operation command adjustment unit, the operation command that causes a sudden change in the posture of the controlled part is automatically adjusted, and the machine operates according to the adjusted operation command. can be controlled. As a result, a highly safe and reliable machine control technology can be provided.
- the mechanical system since the operation command adjustment unit, the operation command that causes a sudden change in the posture of the control target part is automatically adjusted, and the machine operates according to the adjusted operation command. You can control the action. As a result, a highly safe and reliable machine control technology can be provided.
- FIG. 1 is a schematic configuration diagram of a mechanical system of one embodiment;
- FIG. 1 is a block diagram of a mechanical system of one embodiment;
- FIG. FIG. 4 is a diagram showing an example of a motion trajectory that includes relatively long segments;
- FIG. 4 is a diagram showing an example of a motion trajectory that includes relatively long segments;
- FIG. 10 illustrates an example of a motion trajectory that includes relatively short segments;
- FIG. 10 illustrates an example of a motion trajectory that includes relatively short segments; It is a figure which shows an example of an area detection window. It is a figure which shows an example of an operation command adjustment window.
- FIG. 11 is a diagram showing an example of an operation command adjustment method selection window;
- FIG. 10 is a diagram showing an example of a motion trajectory that does not include sudden attitude changes;
- FIG. 10 is a diagram showing an example of a motion trajectory including sudden posture changes;
- FIG. 10 is a diagram showing an example of a motion speed window including a sudden attitude change;
- FIG. 10 is a diagram showing an example of a program edit window after changing the operating speed;
- FIG. 10 is a diagram showing a modified example of the program edit window after changing the operating speed;
- FIG. 10 is a diagram showing an example of a motion trajectory window after changing the motion format;
- FIG. 10 is a diagram showing an example of a motion trajectory window after changing the motion format;
- FIG. 10 is a diagram showing an example of a program edit window after changing the operation format;
- FIG. 1 is a schematic configuration diagram of a mechanical system 1 of one embodiment.
- the mechanical system 1 is a robot system, it is not limited thereto, and in other embodiments, the mechanical system 1 is composed of other mechanical systems such as a machine tool system, a construction machine system, a vehicle system, an aircraft system, a rocket system, and the like. Sometimes it is done.
- the machine system 1 comprises a machine 2 , a control device 3 and a programming device 4 .
- the machine 2, the control device 3, and the programming device 4 are connected to each other via wires or wirelessly or configured to be connectable to each other via wires or wirelessly.
- the machine 2 is controlled by the control device 3 according to the operation program, and the control device 3 executes the operation program for the machine 2 created by the program creation device 4 .
- the machine 2 may be an industrial robot, such as, but not limited to, an articulated robot, and in other embodiments, the machine 2 may be a parallel-link robot, an orthogonal robot, a humanoid, a dual-arm robot, or other robot. It may also consist of robots. Alternatively, it should be noted that in other embodiments machine 2 may comprise other machines such as machine tools, construction equipment, vehicles, aircraft, rockets, and the like.
- the machine 2 has a first link 10 to a seventh link 16 .
- the first link 10 is a base fixed at a predetermined position
- the second link 11 is a revolving barrel supported rotatably with respect to the first link 10 about the first axis J1.
- the third link 12 is a first arm rotatably supported with respect to the revolving barrel 11 about a second axis J2 orthogonal to the first axis J1, and the fourth link 13 is a third arm parallel to the second axis J2.
- the second arm is rotatably supported with respect to the third link 12 about the axis J3.
- a fifth link 14 to a seventh link 16 are a triaxial wrist unit attached to the tip of the fourth link 13 .
- the fifth link 14 is a first wrist element supported rotatably with respect to the second arm 13 about a fourth axis J4 orthogonal to the third axis J3.
- the sixth link 15 is a second wrist element rotatably supported with respect to the fifth link 14 about a fifth axis J5 orthogonal to the fourth axis J4.
- the seventh link 16 is a third wrist element rotatably supported with respect to the second wrist element 15 about a sixth axis J6 orthogonal to the fifth axis J5.
- the machine 2 also has a tool 17 detachably attached to the tip of the wrist unit.
- the tool 17 is composed of various tools such as a hand, a welding tool, a cutting tool, a drilling tool, and a painting tool.
- the machine 2 comprises a plurality of interconnected links 10-16.
- the machine 2 includes joint axes that rotate about predetermined axes J1-J6 between the links 10-16, the machine 2 is not limited to this, and in another embodiment, the machine 2 includes the links 10-16. 16 may be provided with a joint shaft that translates along a predetermined axis.
- the machine 2 further includes an actuator (see FIG. 2) for driving each joint axis and an actuator (see FIG. 2) for driving the tool 17.
- the actuators may comprise electrical actuators including electric motors, speed reducers and the like, but in other embodiments the actuators may comprise other actuators such as fluid actuators including fluid pumps, fluid cylinders and the like. Also, the actuator may further comprise one or more drive circuits for driving itself.
- control device 3 includes a programmable logic controller (PLC).
- controller 3 may comprise other processors or other semiconductor integrated circuits.
- the control device 3 includes a processor, a memory, an input/output interface, etc., which are interconnected via a bus (not shown).
- the processor executes programs stored in the memory to control various devices, the memory stores various programs and various data, and the input/output interface exchanges data between the processor or memory and various external devices. Input/output.
- the controller 3 may further comprise one or more drive circuits for driving the actuators of the machine 2 .
- the drive circuit is a servo amplifier that drives and controls the actuator based on the operation command input from the processor.
- the control device 3 receives an operation program for the machine 2 from the programming device 4 via an input/output interface, executes the operation program with a processor, sends an operation command to a drive circuit, and drives the actuator to operate the machine 2. to operate.
- the program creation device 4 includes a computer such as a personal computer (PC), a tablet computer, or the like. sometimes The program creation device 4 includes a processor, a memory, an input/output interface, etc., which are interconnected via a bus (not shown).
- the processor executes programs stored in the memory to control various devices, the memory stores various programs and various data, and the input/output interface exchanges data between the processor or memory and various external devices. Input/output.
- the program creation device 4 creates an operation program for the machine 2 and sends the created operation program to the control device 3 via the input/output interface.
- the program creation device 4 includes program creation software 5 for editing, executing, generating, etc. the operation program of the machine 2 .
- the programming software 5 is stored in memory and executed by the processor.
- the program creation software 5 includes motion trajectory windows (see FIGS. 3A-4B, 6A-6B, and 9A-9B), program editing windows (see FIGS. 8A-8B, and 10),
- a programming screen including various windows such as an interval detection window (see FIG. 5A), an operation command adjustment window (see FIG. 5B), and an operation command adjustment method selection window (see FIG. 5C) is displayed on the display unit.
- the programming software 5 has a coordinate system setting function for setting various coordinate systems such as a world coordinate system, a machine coordinate system, a flange coordinate system, a tool coordinate system, a camera coordinate system, a work coordinate system, and a user coordinate system. . These coordinate systems are composed of orthogonal coordinate systems, but in other embodiments, these coordinate systems may be composed of other coordinate systems such as oblique coordinate systems, polar coordinate systems, and the like. For ease of explanation, it is assumed that the programming software 5 has set a machine coordinate system C1 and a tool coordinate system C2. The machine coordinate system C1 is fixed to a reference point of the machine 2, eg the base, and the tool coordinate system C2 is fixed to a reference point of the tool 17, eg the tool center point (TCP).
- TCP tool center point
- the machine 2 has a controlled part P, which is a control point.
- the position of the control target portion P is represented by the position of the tool coordinate system C2 in the machine coordinate system C1, eg, XYZ coordinate values (x, y, z).
- the position of the controlled part P may be the position of the flange coordinate system in the machine coordinate system C1, that is, the flange position of the wrist unit, or the position of the tool coordinate system C2 in the world coordinate system. good.
- the orientation of the control target portion P is represented by the orientation of the tool coordinate system C2 in the machine coordinate system C1, for example, the amount of rotation (w, p, r) around the XYZ axes.
- the orientation of the control target portion P may be the orientation of the flange coordinate system in the machine coordinate system C1, that is, the flange orientation of the wrist unit, or the orientation of the tool coordinate system C2 in the world coordinate system. good.
- the programming software 5 further has a teaching point setting function for setting one or more teaching points that constitute the motion trajectory of the control target portion P.
- Each teaching point includes at least the position of the control target portion P, such as XYZ coordinate values (x, y, z), and if necessary, the orientation of the control target portion P, such as XYZ Contains the amount of rotation (w, p, r) about the axis.
- the programming software 5 further has an operation command editing function that arranges and edits the operation commands for the machine 2 in chronological order.
- the operation instruction includes an operation instruction for the control target portion P, an operation instruction for the tool 17, an application instruction combining these operation instructions, and the like.
- the motion command for the control target portion P includes various parameters such as a teaching point, motion format, speed format, and speed parameter.
- the action format of the action command is linear movement (linear movement of the controlled part P), circular arc movement (circular movement of the controlled part P), axis movement (the movement path of the controlled part P is not constrained, and each joint axis movement of the control target part P, in which the actuators of the actuators operate independently.
- the speed format of the action command includes various speed formats such as the movement speed of the controlled part P, the movement speed of the actuator of each joint axis, the attitude change speed of the controlled part P, and the movement time between teaching points.
- the speed parameters of the motion commands are various speed parameters such as motion speed or motion time depending on these speed types.
- the operation command of the tool 17 includes various parameters corresponding to the tool such as hand opening/closing and gripping strength, and the application command includes various parameters corresponding to the application such as palletizing and depalletizing.
- the programming software 5 further has a teaching point associating function that associates one or more teaching points constituting the motion trajectory of the control target portion P with the motion command. For example, a teaching point at a target position for linear movement is associated with an operation command for linear movement. Alternatively, for example, a plurality of teaching points at an intermediate position or a target position of arc movement are associated with an operation command for arc movement.
- the programming software 5 edits the operation program of the machine 2 by various editing functions as described above.
- the program creation software 5 further has a program execution function for executing the edited operation program online (connected to the actual machine) or offline (without connecting to the actual machine) to check the operation of the machine 2.
- the programming software 5 may also have a program generation function for generating an operating program.
- the edited or execution-confirmed operation program is converted from source code into object code (machine language), intermediate code, bytecode, etc., and the final operation program is generated.
- the program creation device 4 sends the created operation program to the control device 3 via the input/output interface.
- FIG. 2 is a block diagram of the mechanical system 1 of one embodiment.
- the programming device 4 includes an input section 40 , a display section 41 and a storage section 42 .
- the input unit 40 is composed of a user interface (UI) such as a keyboard and a mouse
- the display unit 41 is composed of a UI such as a display.
- the unit 41 may be configured with an integrated UI such as a touch panel display.
- the storage unit 42 is composed of memories such as RAM (random access memory) and ROM (read only memory).
- the program creation device 4 further includes a program editing unit 45, a program execution unit 46, a section detection unit 47, and an operation command adjustment unit 48, which are part of the program creation software 5. These components consist of part or all of a program executed by a processor, but are not limited to this. integrated circuit) or other semiconductor integrated circuits.
- the control device 3 has a control section 30 that controls the operation of the machine 2 .
- the control unit 30 comprises control circuitry including a PLC, in other embodiments the control unit 30 may further comprise one or more drive circuits for driving and controlling the actuators 20 of the machine 2 .
- the control section 30 controls the operation of the machine 2 according to the operation program 44 created by the program creating device 4 .
- controller 3 may comprise all the components of programming device 4 . That is, the control device 3 may include an input unit 40, a display unit 41, a storage unit 42, a program editing unit 45, a program execution unit 46, a section detection unit 47, an operation command adjustment unit 48, and the like.
- the machine 2 is equipped with one or more actuators 20 that drive the machine 2.
- the actuator 20 includes an actuator that drives each joint axis, an actuator that drives the tool 17, and the like.
- Actuator 20 may comprise an electrical actuator, including an electric motor, speed reducer, etc., but in other embodiments, actuator 20 may comprise other actuators, such as fluid actuators, including fluid pumps, fluid cylinders, etc. Sometimes. Actuator 20 may also include one or more drive circuits for driving itself.
- the program editing unit 45 displays the operation trajectory window 50 (see FIGS. 3A to 4B, 6A to 6B, 9A to 9B, etc.) having the above-described coordinate system setting function, teaching point setting function, etc. , and the program editing window 80 (see FIGS. 8A and 8B, FIG. 10, etc.) having the operation command editing function, the teaching point association function, etc., is displayed on the display unit 41 .
- the program editing unit 45 edits the coordinate system, teaching points, operation commands, etc. based on various commands input from the input unit 40, stores the edited operation program 44 in the storage unit 42, and stores the edited operation program 44 in the storage unit 42. is displayed in the program edit window 80.
- the program editing function allows the user to edit the operating program 44 .
- the program execution unit 46 displays on the display unit 41 a program execution window (not shown) having the program execution function described above.
- the program execution unit 46 executes the edited operation program 44 offline based on various commands input from the input unit 40, and operates the virtual machine 2 displayed on the display unit 41 in the virtual space.
- the program execution unit 46 sends the edited operation program 44 to the control device 3 based on various commands input from the input unit 40, executes the operation program 44 online, and executes the operation program 44 online. 2 is operated in the real space.
- the program execution function allows the user to check the operation of the machine 2 using the edited operation program 44 .
- the program execution unit 46 may have the program generation function described above.
- the program creation device 4 includes a section detection unit 47 that detects a section in which the posture of the control target part P changes abruptly, and an action command adjustment section 48 that adjusts the action command for that section.
- the section detection unit 47 detects sections in which the change in posture of the control target part P per unit distance or unit time on the movement path of the control target part P is equal to or greater than the threshold value 43 .
- Attitude change per unit distance or unit time is obtained by, for example, dividing the sum of each rotation amount (for example, the sum of each rotation angle) around the XYZ axes by the unit distance (for example, millimeters) or the unit time (for example, seconds). Anything is fine.
- a threshold value 43 for posture change per unit distance or unit time is input in advance from the input unit 40 or stored in the storage unit 42 in advance.
- the interval detection unit 47 evaluates the distance between the teaching points in the motion program 44, the motion speed or motion time between the teaching points, and the posture change of the control target part P between the teaching points, so that the unit distance or A section in which the posture change of the control target part P per unit time is equal to or greater than the threshold value 43 is detected.
- the section detection unit 47 sequentially evaluates the posture change per unit distance or unit time during execution of the operation program 44 so that the posture change per unit distance or unit time exceeds the threshold value 43. You may detect an interval where With the section detection function, it is possible to automatically detect a section in which the posture of the control target part P abruptly changes from within the motion program 44 or during execution of the motion program 44 . Therefore, it is possible to shorten the time required to correct the operation program 44, which has a particularly large number of teaching points. As a result, the operation program 44 of the machine 2 with high safety and reliability can be provided.
- the display unit 41 displays, based on a command from the section detection unit 47, a motion trajectory in which the detected section in which the posture change is large and the teaching points that constitute the section are highlighted (the motion trajectory window 50 in FIG. 6B is displayed). ).
- the section highlighting function allows the user to easily visually recognize the section in which the posture of the control target region P changes rapidly.
- the display unit 41 displays an execution confirmation as to whether or not to automatically adjust the action command in the interval in which the posture of the control target part P changes rapidly based on the command from the interval detection unit 47 (see FIG. 5B ). display the operation command adjustment window 63).
- the motion command adjustment confirmation feature allows the user to optionally select automatic or manual adjustment of the motion command.
- the action command adjustment unit 48 adjusts the action command in the action program 44 of the machine 2 based on the attitude change of the control target part P per unit distance or unit time. In other words, the action command adjustment unit 48 adjusts the action command for a section in which the posture change of the control target part P per unit distance or unit time is equal to or greater than the threshold value 43 .
- the operation command adjustment unit 48 has at least one of an operation speed changing function for changing the operation speed of the operation command and an operation format changing function for changing the operation format of the operation command as a method for adjusting the operation command.
- the operation speed change function is a function that changes the speed format of the operation command and the speed parameter according to the speed format.
- the motion speed change function changes the speed format of the movement speed of the control target part P to the speed format of the attitude change speed of the control target part P, and decelerates the speed parameter of the attitude change speed of the control target part P to a predetermined value or less.
- the motion speed change function changes the speed format of the movement speed of the controlled part P to the speed format of the movement time between the taught points of the controlled part P, In some cases, the speed parameter, the moving time in between, is increased beyond a predetermined value.
- the motion speed change function changes the speed format of the motion speed of the actuator 20 of each joint axis to the speed format of the attitude change speed of the control target part P, and changes the attitude change speed of the control target part P is decelerated below a predetermined value.
- the motion speed change function changes the speed format of the motion speed of the actuator 20 of each joint axis to the speed format of the movement time between the teaching points of the controlled part P,
- the speed parameter which is the movement time between teaching points, is increased beyond a predetermined value.
- the motion format change function is a function to change to a motion format in which the movement distance of the controlled part P is extended.
- the motion format change function changes the motion format of linear movement of the controlled part P to the motion format of each axis movement, and decelerates the speed parameter, which is the movement speed of the actuator 20 of each joint axis, to a predetermined value or less as necessary.
- the motion format change function changes the motion format of linear movement of the controlled portion P to the motion format of arcuate movement, and reduces the motion speed of the controlled portion P to a predetermined value or less as necessary. slow down. Since the moving distance of the control target part P is longer in the action type of circular arc movement than in the action type of linear movement, sudden changes in the posture of the control target part P can be suppressed.
- the motion format changing function extends the moving distance of the control target portion P, and reduces the motion speed to a predetermined value or less as necessary, so that the control target portion P can be prevented from suddenly changing its posture. As a result, it is possible to provide a machine operation program 44 with high safety and reliability.
- the operation command adjustment unit 48 stores the operation program 44 including the adjusted operation command in the storage unit 42, and displays the operation program 44 including the adjusted operation command on the display unit 41 (FIGS. 8A to 8B, FIG. 10). program edit window 80).
- the display unit 41 displays the operation program 44 in which the adjusted operation command is highlighted based on the command from the operation command adjustment unit 48 (shows the program edit window 80 in FIGS. 8A to 8B and FIG. 10).
- the display unit 41 displays an operation program 44 that simultaneously displays the operation command before adjustment and the operation command after adjustment based on the command from the operation command adjustment unit 48 (see FIGS. 8A to 8B and program editing in FIG. 10). display window 80).
- the action command highlighting function allows the user to easily visually recognize the automatically adjusted action command.
- the operation command display function before and after adjustment allows the user to easily visually recognize how the operation command has been automatically adjusted.
- 3A and 3B are diagrams showing an example of the motion trajectory T including a relatively long section (see teaching points P1-P2).
- the motion trajectory window 50 displays the virtual machine 2 and the motion trajectory T of the controlled part P in the virtual space.
- the motion trajectory T of the control target portion P is composed of a plurality of teaching points P1 to P3. Both the teaching point P2 and the teaching point P3 are associated with motion commands for linear movement.
- the control target portion P is located at the teaching point P1, and the orientation of the control target portion P is represented by the tool coordinate system C2.
- the posture of the control target portion P at the teaching point P2 is represented by the tool coordinate system C2'.
- the control target portion P is located at the teaching point P2, and the orientation of the control target portion P is represented by the tool coordinate system C2.
- the moving speed of the control target portion P is 50 mm/sec
- the distance between the teaching point P1 and the teaching point P2 is 500 mm
- the attitude change of the control target portion P between the teaching point P1 and the teaching point P2 that is, When the posture change from the tool coordinate system C2 to the tool coordinate system C2' is 150 degrees
- the posture change between the teaching point P1 and the teaching point P2 is the movement of the controlled part P between the teaching point P1 and the teaching point P2.
- FIGS. 4A and 4B are diagrams showing an example of the motion trajectory T including a relatively short section (see teaching points P1-P2).
- the motion trajectory window 50 displays the virtual machine 2 and the motion trajectory T of the controlled part P in the virtual space.
- the motion trajectory T of the control target portion P is composed of a plurality of teaching points P1 to P3. Both the teaching point P2 and the teaching point P3 are associated with motion commands for linear movement.
- the control target portion P is located at the teaching point P1, and the orientation of the control target portion P is represented by the tool coordinate system C2.
- the posture of the control target portion P at the teaching point P2 is represented by the tool coordinate system C2'.
- the control target portion P is located at the teaching point P2, and the orientation of the control target portion P is represented by the tool coordinate system C2.
- the moving speed of the control target portion P is 50 mm/sec
- the distance between the teaching point P1 and the teaching point P2 is 50 mm
- the attitude change of the control target portion P between the teaching point P1 and the teaching point P2 that is, When the posture change from the tool coordinate system C2 to the tool coordinate system C2' is 150 degrees
- the posture change between the teaching point P1 and the teaching point P2 is the movement of the controlled part P between the teaching point P1 and the teaching point P2.
- the section detection unit 47 automatically detects such a section (between the teaching point P1 and the teaching point P2) where the posture of the control target region P changes rapidly, and the operation command adjustment unit 48 detects the posture of the control target region P. Automatically adjusts to rapidly changing motion commands.
- FIG. 5A is a diagram showing an example of the section detection window 60.
- the display unit 41 displays a section detection window 60 based on a command from the section detection unit 47 .
- the segment detection window 60 has a threshold input box 61 and a segment detection execution button 62 .
- 15 degrees/second may be entered in the threshold input box 61 as the threshold 43 of posture change per unit time.
- 0.3 degrees/mm may be entered in the threshold input box 61 as the threshold 43 of attitude change per unit distance.
- the input threshold value 43 is stored in the storage unit 42 and can be used as a threshold value when detecting the section from the next time onward.
- the section detection unit 47 Based on a command from the section detection execution button 62, the section detection unit 47 detects sections in the motion program 44 in which the posture of the control target part P changes rapidly. According to the embodiment of FIGS. 4A and 4B, in which the attitude of the controlled part P changes rapidly, the attitude change of the controlled part P per unit time between the teaching point P1 and the teaching point P2 is 150 degrees/second. , and since the posture change of the control target part P per unit distance is 3 degrees/mm, the section detection unit 47 detects the distance between the teaching point P1 and the teaching point P2 as the control target part P per unit time or unit distance. posture change (150 degrees/second or 3 degrees/mm) is detected as an interval in which the threshold value 43 (15 degrees/second or 0.3 degrees/mm) or more. Based on a command from the section detection section 47, the display section 41 displays a motion trajectory window 50 highlighting a section (between the teaching point P1 and the teaching point P2) including a sudden posture change.
- FIG. 6A is a diagram showing an example of a motion trajectory T that does not include abrupt posture changes
- FIG. 6B is a diagram showing an example of a motion trajectory T that includes abrupt posture changes.
- the display unit 41 displays the motion trajectory window 50 displaying the motion trajectory T with a thin broken line or the like, and the display unit 41 also displays the teaching points.
- a motion trajectory window 50 is displayed in which P1 to P3 are indicated by black circles or the like.
- P1 to P3 are indicated by black circles or the like.
- the display unit 41 displays a section S ( A motion trajectory window 50 is displayed in which the point P1 and P2) is highlighted with a thick solid line or the like. Further, the display unit 41 may display the motion trajectory window 50 in which the teaching point P2 (target position) is highlighted with a white circle or the like based on a command from the section detection unit 47 . Alternatively, in another embodiment, the display unit 41 highlights both the taught point P1 (current position) and the taught point P2 (target position) that form the interval S with white circles or the like, based on a command from the interval detection unit 47. You may
- the section detection unit 47 may sequentially detect sections S in which the posture of the control target part P abruptly changes during execution of the operation program 44 .
- the attitude change of the controlled part P per unit time between the teaching point P1 and the teaching point P2 is 150 degrees/second.
- the section detection unit 47 detects the distance between the teaching point P1 and the teaching point P2 as the control target part P per unit time or unit distance.
- the display section 41 Based on the command from the section detection section 47, the display section 41 displays the motion speed window 70 highlighting the section S (between the teaching point P1 and the teaching point P2) including a sudden posture change.
- FIG. 7 is a diagram showing an example of the motion speed window 70 including sudden posture changes.
- the display section 41 Based on the command from the section detection section 47, the display section 41 displays the motion speed window 70 highlighting the section S (between the teaching point P1 and the teaching point P2) including a sudden posture change.
- Operation speed window 70 contains an operation speed graph against execution time of operation program 44 .
- the display unit 41 highlights the section S including a sudden posture change with a thick solid line or the like.
- the controlled portion P is positioned at the taught point P1 and the taught point P2
- the posture of the controlled portion P is changed in the section S in which the movement speed of the controlled portion P becomes constant. Therefore, only the section S in which the movement speed of the control target portion P is constant is highlighted.
- the section detection function it is possible to automatically detect the section S in which the posture of the control target part P abruptly changes from within the operation program 44 or during execution of the operation program 44 . Therefore, it is possible to shorten the time required to correct the operation program 44, which has a particularly large number of teaching points. As a result, the operation program 44 of the machine 2 with high safety and reliability can be provided.
- the section highlighting function allows the user to easily visually recognize the section S in which the posture of the control target region P abruptly changes.
- FIG. 5B is a diagram showing an example of the operation command adjustment window 63.
- the display unit 41 determines whether or not to automatically adjust the operation command for the section S based on the instruction from the section detection unit 47.
- An operation instruction adjustment window 63 displaying execution confirmation is displayed.
- the operation command adjustment window 63 has an operation command adjustment execution button 64 and a cancel button 65 .
- the action command adjuster 48 automatically adjusts the action command for the section S when the action command adjustment execution button 64 is pressed.
- the cancel button 65 is pressed, the operation command adjustment unit 48 makes the operation command for the section S manually adjustable.
- the motion command adjustment confirmation feature allows the user to optionally select automatic or manual adjustment of the motion command.
- FIG. 5C is a diagram showing an example of the operation command adjustment method selection window 66.
- FIG. 5C When the operation command adjustment execution button 64 is pressed in the operation command adjustment window 63 , the display unit 41 displays the operation command adjustment method selection window 66 based on the command from the operation command adjustment unit 48 .
- the operation command adjustment method selection window 66 has an operation speed change button 67 and an operation format change button 68 .
- the operation command adjustment unit 48 changes the operation speed of the operation command when the operation speed change button 67 is pressed.
- the action format change button 68 is pressed, the action command adjuster 48 changes the action format of the action command.
- the action command adjustment unit 48 changes the speed format of the movement speed of the control target part P (for example, 30 mm/sec) to the speed format of the posture change speed of the control target part P.
- the speed parameter which is the attitude change speed of the control target part P
- the action command adjustment unit 48 changes the speed format of the movement speed of the control target part P (for example, 30 mm/sec) to the teaching point of the control target part P. Then, the movement time between the teaching points of the control target portion P is increased to a predetermined value (for example, 10 seconds) or more.
- FIG. 8A is a diagram showing an example of the program edit window 80 after changing the operating speed.
- the display unit 41 changes the movement speed (eg, 30 mm/sec) of the control target part P to the attitude change speed (eg, 15 degrees) based on the command from the motion command adjustment unit 48. /sec) is displayed in the program edit window 80.
- the display unit 41 highlights the operation command 81 whose operation speed has been changed based on the command from the operation command adjusting unit 48 with a background color, underlining, or the like.
- the display unit 41 simultaneously displayed the operation command before adjustment (linear movement P2 30 mm/sec) and the operation command after adjustment (linear movement P2 15 degrees/sec) based on the command from the operation command adjustment unit 48.
- the operating program 44 is displayed.
- FIG. 8B is a diagram showing a modified example of the program edit window 80 after changing the operating speed.
- the display unit 41 changes the movement speed (for example, 30 mm/sec) of the control target part P to the movement time between teaching points ( 10 seconds) is displayed in the program edit window 80 .
- the display unit 41 highlights the operation command 81 whose operation speed has been changed based on the command from the operation command adjusting unit 48 with a background color, underlining, or the like.
- the display unit 41 is based on the command from the operation command adjustment unit 48, and the operation program simultaneously displays the operation command before adjustment (linear movement P2 30 mm/sec) and the operation command after adjustment (linear movement P2 10 seconds). 44 is displayed.
- the motion speed change function changes the speed format
- the user can intuitively recognize the change in the posture of the control target part P after the change.
- the speed parameter is changed, sudden changes in posture of the control target region P can be suppressed.
- the operation instruction highlighting function allows the user to easily visually recognize the automatically adjusted operation instruction.
- the operation instruction display function before and after adjustment allows the user to easily visually recognize how the operation instruction has been automatically adjusted.
- the motion command adjustment unit 48 changes the motion format of the linear movement of the control target portion P to the motion format of each axis movement.
- a speed parameter which is the motion speed of the actuator 20 of each joint axis, is reduced to a predetermined value (for example, 10% of the maximum motion speed) or less.
- the motion command adjustment unit 48 changes the motion format of linear movement of the controlled part P to circular arc motion, and if necessary, A speed parameter, that is, the operating speed of the control target portion P is reduced to a predetermined value (for example, 10% of the maximum operating speed) or less.
- FIGS. 9A and 9B are diagrams showing an example of the motion trajectory window 50 after changing the motion format.
- the display unit 41 changes the motion format of the linear movement of the controlled part P to the teaching point P2 to the motion of each axis movement based on the command of the motion command adjustment unit 48.
- the motion trajectory T changed to the format is displayed in the motion trajectory window 50 .
- the display unit 41 changes the motion trajectory T from the motion format of linear movement of the controlled part P to the teaching point P2 to the motion format of arcuate movement based on the command from the motion command adjustment unit 48. is displayed in the motion trajectory window 50 .
- FIG. 10 is a diagram showing an example of the program editing window 80 after changing the operation format.
- the display unit 41 changes the motion format of the linear movement of the control target part P to the motion format of each axis movement based on the command of the motion command adjustment unit 48
- An operation instruction 82 is displayed in the program edit window 80, which is a speed parameter that is the operation speed of the actuator 20 of each joint axis and is reduced to a predetermined value (for example, 10% of the maximum operation speed) or less.
- the display unit 41 highlights the operation command 82 whose operation format has been changed based on the command from the operation command adjustment unit 48 with a background color, underlining, or the like.
- the display unit 41 simultaneously displays the operation command before adjustment (linear movement P2 30 mm/sec) and the operation command after adjustment (each axis movement P2 10%) based on the command from the operation command adjustment unit 48.
- Display program 44 is a diagram showing an example of the program editing window 80 after changing the operation format.
- the motion format change function extends the movement distance of the control target part P, it is possible to suppress sudden changes in the posture of the control target part P. As a result, it is possible to provide a machine operation program 44 with high safety and reliability.
- the action command highlighting function allows the user to easily visually recognize the automatically adjusted action command.
- the operation command display function before and after adjustment allows the user to easily visually recognize how the operation command has been automatically adjusted.
- the section detection unit 47 can automatically detect the section S in which the posture of the control target part P changes rapidly.
- the action command adjuster 48 can automatically adjust an action command that causes the posture of the control target portion P to change rapidly. Therefore, it is possible to shorten the time required to correct the operation program 44, which has a particularly large number of teaching points. As a result, it is possible to provide a machine operation program 44 with high safety and reliability.
- control device 3 includes the section detection unit 47
- the section S in which the posture of the control target part P changes abruptly can be automatically detected.
- control device 3 is provided with the operation command adjustment unit 48, an operation command that causes a sudden change in the posture of the control target part P is automatically adjusted, and the operation of the machine 2 is controlled according to the adjusted operation command. can.
- control technology for the machine 2 with high safety and reliability can be provided.
- the mechanical system 1 includes the section detection unit 47, the section S in which the posture of the control target part P changes abruptly can be automatically detected. Further, when the mechanical system 1 is provided with the operation command adjustment unit 48, the operation command that causes a sudden change in the posture of the control target part P is automatically adjusted, and the operation of the machine 2 is controlled according to the adjusted operation command. can. As a result, control technology for the machine 2 with high safety and reliability can be provided.
- the aforementioned program or software may be recorded on a computer-readable non-transitory recording medium such as a CD-ROM and provided, or may be provided via a wired or wireless WAN (wide area network) or LAN (local area network) may be distributed and provided from a server device.
- a computer-readable non-transitory recording medium such as a CD-ROM and provided, or may be provided via a wired or wireless WAN (wide area network) or LAN (local area network) may be distributed and provided from a server device.
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Abstract
Description
本開示の他の態様は、機械の制御対象部位の移動経路における単位距離又は単位時間当たりの制御対象部位の姿勢変化が閾値以上になる区間を検出する区間検出部を備える、プログラム作成装置を提供する。
本開示の別の態様は、機械の制御対象部位の移動経路における単位距離又は単位時間当たりの制御対象部位の姿勢変化に基づいて機械の動作命令を調整する動作命令調整部と、調整した動作命令に従って機械の動作を制御する制御部と、を備える、制御装置を提供する。
本開示の更に別の態様は、機械と、機械の制御対象部位の移動経路における単位距離又は単位時間当たりの制御対象部位の姿勢変化に基づいて機械の動作命令を調整する動作命令調整部と、調整した動作命令に従って機械の動作を制御する制御部と、を備える、機械システムを提供する。
本開示の他の態様によれば、制御対象部位の姿勢が急激に変化する区間を自動的に検出できる。そのため、特に教示点数が多い動作プログラムの修正に要する時間を短縮できる。ひいては、安全性及び信頼性の高い機械の動作プログラムを提供できる。
本開示の別の態様によれば、制御装置が動作命令調整部を備えているため、制御対象部位の姿勢が急激に変化する動作命令を自動的に調整し、調整した動作命令に従って機械の動作を制御できる。ひいては、安全性及び信頼性の高い機械の制御技術を提供できる。
本開示の更に別の態様によれば、機械システムが動作命令調整部を備えているため、制御対象部位の姿勢が急激に変化する動作命令を自動的に調整し、調整した動作命令に従って機械の動作を制御できる。ひいては、安全性及び信頼性の高い機械の制御技術を提供できる。
2 機械(ロボット)
3 制御装置
4 プログラム作成装置
5 プログラム作成ソフトウェア
10 第一リンク(ベース)
11 第二リンク(旋回胴)
12 第三リンク(第一アーム)
13 第四リンク(第二アーム)
14 第五リンク(第一手首要素)
15 第六リンク(第二手首要素)
16 第七リンク(第三手首要素)
17 ツール
20 アクチュエータ
30 制御部
40 入力部
41 表示部
42 記憶部
43 閾値
44 動作プログラム
45 プログラム編集部
46 プログラム実行部
47 区間検出部
48 動作命令調整部
50 動作軌道ウインドウ
60 区間検出ウインドウ
61 閾値入力ボックス
62 区間検出実行ボタン
63 動作命令調整ウインドウ
64 動作命令調整実行ボタン
65 キャンセルボタン
66 動作命令調整方法選択ウインドウ
67 動作速度変更ボタン
68 動作形式変更ボタン
70 動作速度ウインドウ
80 プログラム編集ウインドウ
81 動作速度が変更された動作命令
82 動作形式が変更された動作命令
C1 機械座標系
C2 ツール座標系
C2′ 移動後のツール座標系
J1~J6 軸線
P 制御対象部位
P1~P3 教示点
S 区間
T 動作軌道
Claims (15)
- 機械の制御対象部位の移動経路における単位距離又は単位時間当たりの前記制御対象部位の姿勢変化に基づいて前記機械の動作プログラム内の動作命令を調整する動作命令調整部を備える、プログラム作成装置。
- 前記単位距離又は単位時間当たりの前記制御対象部位の前記姿勢変化が閾値以上になる区間を検出する区間検出部をさらに備える、請求項1に記載のプログラム作成装置。
- 前記単位距離又は単位時間当たりの前記制御対象部位の前記姿勢変化の前記閾値を入力する入力部をさらに備える、請求項2に記載のプログラム作成装置。
- 検出された前記区間及び前記区間を構成する教示点の少なくとも一方を強調表示した動作軌道を表示する表示部をさらに備える、請求項2又は3に記載のプログラム作成装置。
- 前記区間検出部は、前記動作プログラム内の教示点間の距離、前記教示点間の動作速度又は動作時間、及び前記教示点間の前記制御対象部位の前記姿勢変化を評価することで、前記単位距離又は単位時間当たりの前記制御対象部位の前記姿勢変化が前記閾値以上になる前記区間を検出する、請求項2から4のいずれか一項に記載のプログラム作成装置。
- 前記区間検出部は、前記動作プログラムの実行中に前記単位距離又は単位時間当たりの前記制御対象部位の前記姿勢変化を逐次的に評価することで、前記単位距離又は単位時間当たりの前記制御対象部位の前記姿勢変化が前記閾値以上になる前記区間を検出する、請求項2から5のいずれか一項に記載のプログラム作成装置。
- 前記動作命令調整部は、前記単位距離又は単位時間当たりの前記制御対象部位の前記姿勢変化が閾値以上になる区間の前記動作命令を調整する、請求項1から6のいずれか一項に記載のプログラム作成装置。
- 前記動作命令調整部は、前記動作命令の調整方法として、前記動作命令の動作速度を変更する動作速度変更機能と、前記動作命令の動作形式を変更する動作形式変更機能と、のうちの少なくとも一方を備える、請求項1から7のいずれか一項に記載のプログラム作成装置。
- 前記動作命令調整部は、前記動作速度変更機能により、前記動作命令の速度形式と前記速度形式に応じた速度パラメータとを変更する、請求項8に記載のプログラム作成装置。
- 調整された前記動作命令を強調表示した前記動作プログラムを表示する表示部をさらに備える、請求項1から9のいずれか一項に記載のプログラム作成装置。
- 前記調整前の前記動作命令と前記調整後の前記動作命令を同時に表示した前記動作プログラムを表示する表示部をさらに備える、請求項1から10のいずれか一項に記載のプログラム作成装置。
- 前記動作命令の自動調整の実行確認を表示する表示部をさらに備える、請求項1から11のいずれか一項に記載のプログラム作成装置。
- 機械の制御対象部位の移動経路における単位距離又は単位時間当たりの前記制御対象部位の姿勢変化が閾値以上になる区間を検出する区間検出部を備える、プログラム作成装置。
- 機械の制御対象部位の移動経路における単位距離又は単位時間当たりの前記制御対象部位の姿勢変化に基づいて前記機械の動作命令を調整する動作命令調整部と、
前記調整された前記動作命令に従って前記機械の動作を制御する制御部と、
を備える、制御装置。 - 機械と、
前記機械の制御対象部位の移動経路における単位距離又は単位時間当たりの前記制御対象部位の姿勢変化に基づいて前記機械の動作命令を調整する動作命令調整部と、
前記調整した前記動作命令に従って前記機械の動作を制御する制御部と、
を備える、機械システム。
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CN202180103422.XA CN118103783A (zh) | 2021-10-29 | 2021-10-29 | 程序制作装置、控制装置以及机械系统 |
DE112021007994.8T DE112021007994T5 (de) | 2021-10-29 | 2021-10-29 | Gerät zur Programmerstellung, Steuergerät und Maschinensystem |
JP2023556062A JPWO2023073958A1 (ja) | 2021-10-29 | 2021-10-29 | |
PCT/JP2021/040135 WO2023073958A1 (ja) | 2021-10-29 | 2021-10-29 | プログラム作成装置、制御装置、及び機械システム |
TW111136884A TW202318118A (zh) | 2021-10-29 | 2022-09-29 | 程式製作裝置、控制裝置及機械系統 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2004185364A (ja) * | 2002-12-04 | 2004-07-02 | Yaskawa Electric Corp | 数値制御装置 |
JP2005149216A (ja) * | 2003-11-17 | 2005-06-09 | Fanuc Ltd | 作業プログラム作成装置 |
JP2013030102A (ja) * | 2011-07-29 | 2013-02-07 | Shin Nippon Koki Co Ltd | 数値制御装置 |
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- 2021-10-29 DE DE112021007994.8T patent/DE112021007994T5/de active Pending
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004185364A (ja) * | 2002-12-04 | 2004-07-02 | Yaskawa Electric Corp | 数値制御装置 |
JP2005149216A (ja) * | 2003-11-17 | 2005-06-09 | Fanuc Ltd | 作業プログラム作成装置 |
JP2013030102A (ja) * | 2011-07-29 | 2013-02-07 | Shin Nippon Koki Co Ltd | 数値制御装置 |
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