WO2011101897A1 - 並列駆動システム - Google Patents
並列駆動システム Download PDFInfo
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- WO2011101897A1 WO2011101897A1 PCT/JP2010/000997 JP2010000997W WO2011101897A1 WO 2011101897 A1 WO2011101897 A1 WO 2011101897A1 JP 2010000997 W JP2010000997 W JP 2010000997W WO 2011101897 A1 WO2011101897 A1 WO 2011101897A1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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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
- G05B19/19—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
- G05B19/21—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
- G05B19/23—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
- G05B19/231—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude
- G05B19/237—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude with a combination of feedback covered by G05B19/232 - G05B19/235
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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
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50228—Synchronize two slides, portal gantry, raising, moving
Definitions
- the present invention relates to a parallel drive system, and in particular, has two servo actuators on a master side and a slave side that have movable parts arranged in parallel to each other and linearly move, and an arm member that couples the movable parts of the actuators.
- the present invention relates to a parallel drive system.
- FIG. 9A is a configuration diagram of a parallel drive system including a position detector only on the master side actuator.
- the movable parts 5 A and 5 B of the master side and slave side actuators are connected by an arm member 8 provided with a head 9.
- the master servo amplifier 12A performs position control based on the position command received from the controller 14 and master position information indicating the position of the movable portion 5A of the master actuator input from the position detector 10.
- a torque command is sent from the master servo amplifier 12A to the slave servo amplifier 12B, and the slave servo amplifier 12B constructs a parallel drive system by performing torque control using the torque command (see, for example, Patent Document 1). ).
- FIG. 9B is a diagram showing another conventional parallel drive system.
- position detectors 10A and 10B are provided in the actuators on the master side and the slave side, respectively.
- Both the master-side and slave-side servo amplifiers 12A and 12B perform position control based on position commands received from the controller 14 and position information indicating the positions of the movable parts 5A and 5B input from the position detectors 10A and 10B.
- the position information obtained by the position detectors 10A and 10B as shown by the broken arrows is input to the slave side and master side servo amplifiers 12B and 12A, respectively. May be shared.
- a parallel drive system capable of maintaining parallelism with high accuracy is constructed (for example, see Patent Document 2).
- the slave actuator since the slave actuator does not have a position detector, the system can be configured while keeping costs low.
- the position of the center of gravity of the arm member 8 deviates from the center of the arm member 8 or the position of the head 9 on the arm member 8 drives the arm member 8.
- the parallel movement accuracy of the arm member 8 is lowered. In this case, there is a problem that not only high-precision positioning becomes difficult, but also the mechanical load on the arm member 8 becomes large, so that high-speed movement of the arm member 8 becomes difficult.
- both the master side and slave side actuators are provided with position detectors 10A and 10B, and position control is performed in the master side and slave side servo amplifiers 12A and 12B, respectively. Therefore, the arm member 8 can be positioned at high speed and with high accuracy. Further, if the position information is shared as indicated by the broken arrow, it is possible to control to suppress the difference between the actual positions of the movable parts 5A and 5B, so that the arm member 8 is paralleled with higher accuracy. It becomes possible to move.
- the position detectors 10A and 10B are provided in both the master side and slave side actuators, there is a problem that the cost of the system is high. When a linear scale is used as the position detector, the cost of the linear scale generally increases in proportion to the size of the apparatus, which is further problematic.
- the present invention has been made to solve the above-described problems, and includes two master-side and slave-side servo actuators having movable parts arranged in parallel with each other and linearly moving, and movable parts of the actuators.
- a parallel drive system having an arm member to be coupled, a system capable of reducing the system cost and enabling high-speed positioning is realized.
- a parallel drive system includes a first actuator and a second actuator that are arranged in parallel with each other and have a movable part that linearly moves, a movable part of the first actuator, and a movable part of the second actuator.
- a parallel drive system having an arm member that is bridged to a position, a position detection unit that detects position information of the movable part of the first actuator, and an acceleration detection unit that detects acceleration information of the movable part of the second actuator And a first control means for controlling the first actuator based on the position information, and a second control means for controlling the second actuator based on the position information and the acceleration information.
- the parallel drive system according to the next invention is characterized in that the actuator is a linear servo motor, the control device is a servo amplifier, and the position detecting means is a linear scale.
- the second control means includes first speed conversion means for converting the position information into first speed information, and the acceleration information as second speed information.
- the speed synthesizing means has a subtraction means for subtracting the second speed information from the first speed information, and a predetermined shut-off using the output of the subtraction means as inputs.
- the speed synthesizing means has a low-pass filter having a predetermined cutoff frequency that receives the first speed information, and a predetermined that receives the second speed information. And a high-pass filter having a cut-off frequency, and an adding means for adding the output of the low-pass filter and the output of the high-pass filter to generate a combined speed.
- the second control means further receives a control signal for controlling the torque of the first actuator from the first control means, and the position information and the acceleration Torque calculation means for calculating a correction torque based on the information is provided, and the second actuator is controlled based on the output of the torque calculation means and the control signal.
- the slave servo motor since the slave servo motor does not include a position detector, the system can be constructed at low cost.
- the slave side since the position information obtained by the position detector of the master side servo motor is taken into the servo amplifiers on both the master side and the slave side, the slave side can also control the position.
- the slave side servo amplifier is provided with a speed synthesis unit that synthesizes the slave side speed information from the converted master side and slave side speed information, the arm member can be positioned at high speed.
- FIG. 1 It is a perspective view which shows the mechanical drive part of the parallel drive system in Embodiment 1 of this invention. It is a block diagram of the parallel drive system in Embodiment 1 of this invention. It is a block diagram which shows the functional block of the parallel drive system in Embodiment 1 of this invention. It is a block diagram which shows the structure of the speed calculating part 132 in FIG. It is a computer simulation result which shows the resonance suppression effect in Embodiment 1 of this invention. It is a block diagram which shows another structure of the speed calculating part 132 in FIG. It is a block diagram which shows the functional block of the parallel drive system in Embodiment 2 of this invention. It is a block diagram which shows the structure of the correction torque calculation part 27 in FIG. It is a figure for demonstrating the conventional parallel drive system.
- FIG. 1 is a perspective view showing a mechanical drive unit of a parallel drive system 1 according to the present invention.
- FIG. 2 is a configuration diagram of the parallel drive system 1 according to the first embodiment.
- the symbol A represents a component on the master side
- B represents a component on the slave side.
- the master-side fixing portion 3A and the slave-side fixing portion 3B are arranged in parallel and fixed to a table (not shown) or the like. Is done.
- the linear guides 4A, 4B, 4C, and 4D are linear guide members, and the movable portions 5A and 5B of the servo motor disposed facing the fixed portions 3A and 3B move linearly along these linear guides 4A to 4D, that is, Perform a linear motion.
- the movable members 5A and 5B are provided with table members 6A and 6B on the opposite side of the side facing the fixed portions 3A and 3B, respectively.
- Arm support members 7A and 7B are placed on the table members 6A and 6B, respectively, and the arm members 8 are bridged on the arm support members 7A and 7B.
- the arm members 8 are driven in parallel by driving the movable portions 5A and 5B of the servo motor.
- the arm member 8 is provided with a head 9.
- the master side table member 6A is provided with a position detector 10 as position detecting means.
- the position detector 10 will be described as a linear scale.
- the slave side table member 6B is provided with an acceleration sensor 11 serving as acceleration detecting means. That is, in the present embodiment, as shown in FIGS. 1 and 2, the slave servomotor 2B is provided with an acceleration sensor 11 instead of a linear scale. Since the acceleration sensor 11 is generally less expensive than a linear scale, the first embodiment is compared with a conventional parallel drive system that includes a linear scale as a position detector 10 on both the master side and the slave side. This makes it possible to construct a low-cost system.
- the position information obtained from the position detector 10 is fed back to both the master-side servo amplifier 12A as the first control means and the slave-side servo amplifier 12B as the second control means. For this reason, the servo amplifier 12B on the slave side can perform not only torque control but also position control. On the other hand, the acceleration information obtained from the acceleration sensor 11 is fed back to the servo amplifier 12B on the slave side.
- FIG. 3 is a block diagram illustrating functional blocks of the parallel drive system 1 according to the first embodiment.
- FIG. 4 is a block diagram showing the configuration of the speed calculation unit 132 in FIG. First, the operation of the master servo amplifier 12A will be described.
- a position command is input from the controller 14 to the master servo amplifier 12A, and position information corresponding to the actual position of the movable portion 5A is input from the position detector 10. Then, the position information is subtracted from the position command in the adder 15A, and the subtraction result as the position deviation is input to the position control unit 16A. From the position control unit 16A, a speed command corresponding to the magnitude of the position deviation is output, and a speed command is output so that the position deviation becomes zero.
- Position information input from the position detector 10 is also input to the speed conversion unit 131.
- the speed conversion unit 131 differentiates the position information to convert it into an actual speed and outputs it. Specifically, the actual speed is obtained based on the difference in position information at a predetermined time interval.
- the output actual speed is input to the adder 17A and subtracted from the speed command, and the subtraction result as the speed deviation is input to the speed control unit 18A.
- a torque command corresponding to the speed deviation is output, and the torque command is output so that the speed deviation becomes zero.
- the torque command is input to the adder 19A, the actual current output from the current control unit 20A is subtracted, and the current deviation is input to the current control unit 20A.
- the current control unit 20A controls the torque of the master servo motor 2A by controlling the actual current based on the current deviation.
- the speed calculator 132 is different from the master. Not only the position information input from the position detector 10 but also the acceleration information obtained by the acceleration sensor 11 provided in the slave-side movable unit 5B is input to the speed calculation unit 132. The speed calculation unit 132 outputs a combined speed based on the speed information of each movable part.
- the position information input to the speed calculation unit 132 is differentiated by the differentiator 21 that is the first speed conversion means, and the actual speed on the master side is calculated.
- the acceleration information input from the acceleration sensor 11 is integrated by the integrator 22 as the second speed conversion means, and the actual speed on the slave side is calculated.
- the calculated actual speeds on the master side and the slave side are input to a speed synthesis unit including an adder 23, a low-pass filter 24, and an adder 25.
- the actual speed on the slave side is subtracted from the actual speed on the master side, and these differences, that is, the actual speed difference is input to the low-pass filter 24.
- the low-pass filter 24 attenuates a frequency component higher than the cutoff frequency fcl in the actual speed difference.
- the output of the low-pass filter 24 is added to the actual speed on the slave side which is the output of the integrator 22 in the adder 25 which is addition means, and is output from the speed calculation unit 132 as a combined speed.
- the actual speed on the master side calculated from the position information obtained from the position detector 10 due to the resonance of the arm member 8 is equal to the actual speed of the slave-side movable unit.
- the difference becomes larger.
- the speed control loop of the slave servo amplifier 12B is configured based on the actual speed on the master side, the control of the slave servo amplifier 12B becomes unstable due to the increased actual speed difference, and the control gain It becomes difficult to raise. As a result, positioning time increases, and high-speed positioning cannot be achieved.
- the speed information obtained by converting the acceleration information obtained by the acceleration sensor 11 coincides with the actual speed of the slave servo motor movable portion 5B. Therefore, if a speed control loop of the slave servo amplifier 12B is configured based on this speed information, stable control can be expected. That is, it is possible to suppress an increase in positioning time due to a decrease in control gain.
- the slave side does not use the actual speed on the master side calculated from the position information obtained by the position detector 10 as described above, but the speed information calculated from the acceleration information obtained from the acceleration sensor 11. It is necessary to control the servo amplifier 12B. However, in an actual system, the possibility that a low frequency error component such as an offset is mixed in the output of the acceleration sensor 11 must be considered. When the low frequency error component is mixed, the output of the speed calculation unit 132 responds to the error component, and an unnecessary torque command is generated. If the speed control loop of the slave servo amplifier 12B is configured in a control band sufficiently lower than the resonance frequency of the arm member 8, the speed information calculated from the position information obtained by the position detector 10 and the acceleration sensor 11 are obtained. There is little difference in speed information calculated from the obtained acceleration information. For this reason, even if the speed control loop is configured based on the speed information calculated from the position information obtained by the position detector 10, the control of the slave servo amplifier 12B does not become unstable.
- the speed control loop of the slave servo amplifier 12B operates based on the speed information obtained from the position detector 10 in the low frequency region, while operating based on the speed information obtained from the acceleration sensor 11 in the high frequency region.
- a high-speed positioning and stable system can be constructed. In the first embodiment, this is easily realized by using the low-pass filter 24.
- the low-pass filter 24 attenuates frequency components of fcl or more of speed information. For this reason, only the component below the frequency fcl is reflected in the synthesis speed that is output.
- the output of the integrator 22 is added with a minus sign, passes through the low-pass filter 24, and is input to the adder 25.
- the input to the adder 25 is also performed separately, as a result, the component below the frequency fcl is canceled in the output of the adder 25.
- the speed information from the integrator 22 is reflected in the combined speed, which is the output of only the component having the frequency fcl or higher. That is, in the frequency band below fcl, the combined speed is obtained from the speed information from the differentiator 21, that is, the speed information obtained from the position detector 10, while in the frequency band above fcl, the speed information from the integrator 22 is obtained. That is, the combined speed is obtained from the speed information obtained from the acceleration sensor 11.
- the slave servo amplifier 12B can perform stable control over a wide band, and a system capable of positioning the arm member 8 at high speed can be constructed.
- Acceleration sensor 11 output low frequency error elimination frequency ⁇ fcl ⁇ frequency at which slave servo amplifier 12 does not become unstable or resonance frequency of arm member 8 Equation (1)
- Each figure shows the behavior of the speed command, the position deviation of the master side and slave side servo amplifiers 12A and 12B (command position-actual position), and the position of the head 9.
- the horizontal axis is time.
- 5A and 5B show calculation results of a parallel drive system that does not include the acceleration sensor 11 on the conventional slave side.
- (A) is the case where the head 9 is located on the master side
- (b) is the case where the head 9 is located on the slave side. Even if a time of about 100 ⁇ s elapses after the speed command is given, the position deviation and the position of the head 9 vibrate.
- FIGS. 5C and 5D show calculation results of the parallel drive system in the present embodiment.
- (C) is a case where the head 9 is located on the master side
- (d) is a case where the head 9 is located on the slave side.
- both the vibration of the head 9 and the vibration of the positional deviation on the master side and the slave side are both small and fast, and converges in about 100 ⁇ s.
- the slave servomotor 2B since the slave servomotor 2B is not provided with a position detector, the system can be constructed at a low cost. Further, since the position information obtained from the position detector 10 of the master side servo motor 2A is taken into both the master side and slave side servo amplifiers 12A and 12B, the position control of the slave side servo motor 2B can be performed. There is an effect. Further, the movable portion 5B of the slave servomotor 2B includes an acceleration sensor 11, and the detected acceleration information is converted into speed by the slave servo amplifier 12B, and the position information on the master side is compared with the value converted into speed. As a result, the vibration state of the arm member 8 can be grasped as speed information.
- the slave-side servo amplifier 12B includes the speed calculator 132 that synthesizes the slave-side speed information from the calculated speed information of the movable parts 5A and 5B on the slave side, the slave-side servo amplifier 12B has the effect that stable control becomes possible and the arm member 8 can be positioned at high speed.
- the configuration of the speed calculation unit 132 has been described with reference to FIG. 4, but is not necessarily limited to the configuration illustrated in FIG. 4.
- another configuration of the speed calculation unit 132 may be configured as shown in FIG. 6, the function of converting position information and acceleration information into actual speeds on the master side and slave side by the differentiator 21 and the integrator 22 is the same as in FIG.
- the calculated actual speed on the master side is input to the low-pass filter 24, while the actual speed on the slave side is input to the high-pass filter 26.
- the low-pass filter 24 attenuates a frequency component higher than the cutoff frequency fcl as in the configuration shown in FIG.
- the high pass filter 26 attenuates a frequency component lower than the cutoff frequency fch.
- the outputs of the low-pass filter 24 and the high-pass filter 26 are added by the adder 25 and output from the speed calculation unit 132 as a combined speed.
- the cutoff frequency fcl of the low-pass filter 24 and the cutoff frequency fch of the high-pass filter 26 are in a range that can be stably controlled by the slave servo amplifier 12B, for example, a value lower than the resonance frequency of the arm member 8
- the output from the high-pass filter 26 is limited to information that is equal to or higher than the frequency band fch of the speed information obtained from the integrator 22, and conversely, the output from the low-pass filter 24 is the speed information obtained from the differentiator 21. It is limited to information below the frequency band fcl. That is, there is an effect that, at the set cut-off frequency, speed information serving as a reference for the composite speed is switched from information of the differentiator 21 to information of the integrator 22.
- the slave servo amplifier 12B can perform stable control, and the arm member 8 can be positioned at high speed.
- the position control unit 16A and the speed control unit 18A have been described as outputting the speed command and the torque command so that the position deviation and the speed deviation become 0, respectively. It is not always necessary to perform control so that each deviation becomes zero. For example, if the position deviation or the speed deviation is within a predetermined value that is sufficiently small close to 0, the control may be stopped, and it goes without saying that the same effect as the present invention can be obtained.
- Embodiment 2 the case where the position command input from the controller 14 is input to the servo amplifiers 12A and 12B on both the master side and the slave side and the position control is performed respectively has been described.
- the slave side servo amplifier 12B The position control based on the position command from the controller 14 is not necessarily performed.
- the slave servo amplifier 12B may perform torque control using a torque command output from the master servo amplifier 12A.
- the torque command of the master servo amplifier 12A is used in the slave servo amplifier 12B will be described as an example.
- FIG. 7 is a block diagram showing functional blocks of the parallel drive system in the second embodiment.
- the position command from the controller 14 is not input to the slave servo amplifier 12B.
- a torque command which is an output of the speed controller 18A, which is a control signal, is input to the slave servo amplifier 12B.
- the slave side servo amplifier 12B receives the position information of the master side servo motor movable part 5A from the position detector 10 and the acceleration information from the acceleration sensor 11 as in the first embodiment. These are input to the correction torque calculation unit 27 which is a torque calculation means, and the correction torque is calculated.
- FIG. 8 is a block diagram showing functional blocks of the correction torque calculator 27 in FIG. In FIG. 8, the same components as those in FIG.
- the position information and acceleration information input to the correction torque calculator 27 are converted into an actual speed on the master side and an actual speed on the slave side, respectively.
- the adder 23 calculates these differences, that is, the actual speed difference, and inputs the difference to the high-pass filter 28.
- the high-pass filter 28 attenuates frequency components lower than the cutoff frequency fch.
- the output of the high-pass filter 28 is input to the P compensator 29, multiplied by a predetermined gain, and then output as a correction torque.
- the correction torque is added to the torque command input from the master servo amplifier 12A in the adder 19B, and the actual current supplied to the slave servo motor 2B is subtracted, and the current deviation is input to the current controller 20B.
- the slave servo amplifier 12B performs torque control using the torque command input from the master servo amplifier 12A. For this reason, due to the change in the position of the center of gravity of the arm member 8 and the position of the head 9, the accuracy of parallel movement of the arm member 8 during driving is reduced, and not only the mechanical load on the arm member 8 is increased, but also the arm member 8. High-speed, high-precision positioning becomes difficult.
- the speed information on the master side calculated from the position information obtained from the position detector 10 due to the influence of the resonance of the arm member 8 is the actual speed of the slave-side movable unit.
- the difference becomes larger.
- the actual speed difference which is the difference between these speed information, is obtained by the adder 23 and the correction torque is output so that the actual speed difference is reduced.
- the operation of the high pass filter 28 will be described. Although there is a possibility that a low frequency error component such as an offset may be mixed in the output of the acceleration sensor 11, it is necessary to prevent the correction torque on the slave side from spreading.
- the high-pass filter 28 is provided to prevent this, and no correction torque is output for the low frequency error component. Therefore, it is possible to stably output a correction torque such that the speed converted from the position information of the position detector 10 and the speed converted from the acceleration information of the acceleration sensor 11 are synchronized. As a result, the parallel movement accuracy of the arm member 8 is increased, and the speed and accuracy of the arm member can be determined.
- the integrator 22 and the adder 23 are arranged so that intermediate variables of calculation such as the output of the integrator 22 do not become infinite even if the acceleration sensor 11 has the error.
- the subtraction operation and the high pass filter 28 are integrated to perform an equivalent operation.
- the correction torque calculation unit 27 that calculates the correction torque from the calculated speed information of the servo motor movable units 5A and 5B on the master side and the slave side is provided on the slave side servo amplifier. Since 12B is provided, the arm member 8 can be translated with high accuracy, and the arm member can be positioned at high speed and with high accuracy.
- the head 9 is fixed to the arm member 8, that is, the moving direction of the head 9 is described only as the driving direction of the arm member 8, but the head 9 is not necessarily fixed to the arm member 8. There is no need.
- an actuator that can drive the head 9 in a direction orthogonal to the driving direction of the arm member 8 may be provided so that the head 9 can be positioned on the XY axes. With such a configuration, the effects of the present invention can be obtained, and the head 9 can be positioned on the XY axes.
- the actuator is a servo system in which an actuator having a movable part that is arranged in parallel and linearly moves is a linear servo motor.
- the drive system may be configured by a combination of a rotary motor and a ball screw, and the same effect as the present invention can be obtained as long as the movable part is configured to linearly move in parallel.
- the present invention can be used in the field of machine tools and the like for arm positioning control devices and constant speed feed control devices of parallel drive systems in which linear motion servo actuators arranged in parallel are connected by arm members.
Abstract
Description
実施の形態1.
まず本実施の形態1における並列駆動システムの構成を図を用いて説明する。図1はこの発明に係る並列駆動システム1の機械駆動部を示す斜視図である。また図2は実施の形態1における並列駆動システム1の構成図である。符号のAはマスター側、Bはスレーブ側の構成要素であることを表す。第1のアクチュエータであるマスター側サーボモータ2A及び第2のアクチュエータであるスレーブ側サーボモータ2Bにおいて、マスター側の固定部3Aとスレーブ側の固定部3Bは並列に配置され、図示しないテーブル等に固定される。リニアガイド4A、4B、4C及び4Dは直線案内部材であり、固定部3A及び3Bに対向して配置されるサーボモータの可動部5A及び5Bは、これらリニアガイド4A乃至4Dに沿って直動すなわち直線運動を行う。
実施の形態1では、コントローラ14から入力される位置指令をマスター側及びスレーブ側双方のサーボアンプ12A及び12Bに入力し、それぞれで位置制御を行う場合について説明したが、スレーブ側サーボアンプ12Bでは、必ずしもコントローラ14からの位置指令に基づく位置制御を行わなくてもよい。例えば、図9(a)に示した従来の並列駆動システムのように、スレーブ側サーボアンプ12Bにおいてはマスター側サーボアンプ12Aから出力されるトルク指令を用いてトルク制御を行ってもよい。本実施の形態2では、スレーブ側サーボアンプ12Bでマスター側のサーボアンプ12Aのトルク指令を用いる場合を例にとり説明する。
2 サーボモータ
3 サーボモータ固定部
4 リニアガイド
5 サーボモータ可動部
6 テーブル部材
7 アーム支持部材
8 アーム部材
9 ヘッド
10 位置検出器
11 加速度センサ
12 サーボアンプ
131 速度変換部
132 速度演算部
14 コントローラ
15、17、19、23、25 加算器
16 位置制御部
18 速度制御部
20 電流制御部
21 微分器
22 積分器
24 ローパスフィルタ
26、28 ハイパスフィルタ
27 補正トルク計算部
29 P補償部
Claims (6)
- 互いに並列に配置され直動する可動部を有する第1のアクチュエータ及び第2のアクチュエータと、
前記第1のアクチュエータの可動部と前記第2のアクチュエータの可動部とに橋架されるアーム部材とを有する並列駆動システムにおいて、
前記第1のアクチュエータの可動部の位置情報を検出する位置検出手段と、
前記第2のアクチュエータの可動部の加速度情報を検出する加速度検出手段と、
前記位置情報に基づき第1のアクチュエータを制御する第1の制御手段と、
前記位置情報及び前記加速度情報に基づき第2のアクチュエータを制御する第2の制御手段と、
を備えることを特徴とする並列駆動システム。 - 前記アクチュエータはリニアサーボモータであり、前記制御装置はサーボアンプであり、前記位置検出手段はリニアスケールであることを特徴とする、請求項1に記載の並列駆動システム。
- 前記第2の制御手段は、
前記位置情報を第1の速度情報に変換する第1の速度変換手段と、
前記加速度情報を第2の速度情報に変換する第2の速度変換手段と、
前記第1及び第2の速度情報を合成して合成速度を生成する速度合成手段と、
を備えることを特徴とする、請求項1または2に記載の並列駆動システム。 - 前記速度合成手段は、
前記第1の速度情報から前記第2の速度情報を減算する減算手段と、
前記減算手段の出力を入力とする所定の遮断周波数を備えたローパスフィルタと、
前記ローパスフィルタの出力と前記第2の速度情報とを加算して合成速度を生成する加算手段と、
を備えることを特徴とする、請求項3に記載の並列駆動システム。 - 前記速度合成手段は、
前記第1の速度情報を入力とする所定の遮断周波数を備えたローパスフィルタと、
前記第2の速度情報を入力とする所定の遮断周波数を備えたハイパスフィルタと、
前記ローパスフィルタの出力と前記ハイパスフィルタの出力とを加算して合成速度を生成する加算手段と、
を備えることを特徴とする、請求項3に記載の並列駆動システム。 - 前記第2の制御手段は、
前記第1の制御手段から前記第1のアクチュエータのトルクを制御する制御信号がさらに入力され、
前記位置情報と前記加速度情報とに基づき補正トルクを計算するトルク計算手段を備え、
前記トルク計算手段の出力と前記制御信号とに基づき第2のアクチュエータを制御する
ことを特徴とする、請求項1に記載の並列駆動システム。
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DE112010005277T DE112010005277T5 (de) | 2010-02-17 | 2010-02-17 | Parallelantriebssystem |
US13/579,237 US8947036B2 (en) | 2010-02-17 | 2010-02-17 | Parallel drive system |
CN201080064029.6A CN102763050B (zh) | 2010-02-17 | 2010-02-17 | 并行驱动系统 |
KR1020127018897A KR101440702B1 (ko) | 2010-02-17 | 2010-02-17 | 병렬 구동 시스템 |
PCT/JP2010/000997 WO2011101897A1 (ja) | 2010-02-17 | 2010-02-17 | 並列駆動システム |
JP2012500380A JP5389251B2 (ja) | 2010-02-17 | 2010-02-17 | 並列駆動システム |
TW099111363A TWI412908B (zh) | 2010-02-17 | 2010-04-13 | 並聯驅動系統 |
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JP (1) | JP5389251B2 (ja) |
KR (1) | KR101440702B1 (ja) |
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JP2017041075A (ja) * | 2015-08-19 | 2017-02-23 | 株式会社安川電機 | モータ制御装置、位置制御システム、及びモータ制御方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013132697A (ja) * | 2011-12-26 | 2013-07-08 | Seiko Epson Corp | 直動ロボット |
JP6316323B2 (ja) * | 2014-01-23 | 2018-04-25 | 三菱電機株式会社 | モータ制御装置 |
KR101619599B1 (ko) * | 2014-08-08 | 2016-05-10 | 현대자동차주식회사 | 융합 레이더 센서 기반 저전력 차량 충돌 방지 방법 및 장치 |
US9732977B2 (en) | 2014-09-02 | 2017-08-15 | Johnson Controls Technology Company | Systems and methods for configuring and communicating with HVAC devices |
US10291292B2 (en) | 2014-09-02 | 2019-05-14 | Johnson Controls Technology Company | Wireless sensor with near field communication circuit |
US20160226349A1 (en) * | 2014-12-01 | 2016-08-04 | Hamilton Sundstrand Corporation | Electromechanical linear actuator |
DE102016113817A1 (de) * | 2016-07-27 | 2018-02-01 | Jenaer Antriebstechnik Gmbh | Linearmotoranordnung und Verfahren zum Betreiben einer Linearmotoranordnung |
JP2018122416A (ja) * | 2017-02-02 | 2018-08-09 | セイコーエプソン株式会社 | ロボット |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003140751A (ja) * | 2001-11-06 | 2003-05-16 | Juki Corp | マスタスレーブ式xy位置決め制御装置及び電子部品搭載装置 |
JP2006202019A (ja) * | 2005-01-20 | 2006-08-03 | Fanuc Ltd | 制御装置 |
JP2010038896A (ja) * | 2008-07-11 | 2010-02-18 | Yokogawa Electric Corp | 速度検出装置および位置検出装置および位置決め装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58186364A (ja) | 1982-04-21 | 1983-10-31 | Matsushita Electric Ind Co Ltd | Xyリニアモ−タ装置 |
CN1104710A (zh) * | 1993-12-30 | 1995-07-05 | 桑尼株式会社 | 被驱动物的控制装置 |
JP4177053B2 (ja) | 2002-09-03 | 2008-11-05 | 古河電気工業株式会社 | 管継手 |
JP2007007716A (ja) * | 2005-07-04 | 2007-01-18 | Fanuc Ltd | ダイクッション機構の衝突判定装置および衝突判定システム |
TW200729673A (en) | 2006-01-27 | 2007-08-01 | Min-Fu Xie | Synchronized motion control system for dual parallel linear motors |
US20120227491A1 (en) * | 2009-12-17 | 2012-09-13 | Toyota Jidosha Kabushiki Kaisha | Angular velocity detecting apparatus |
-
2010
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003140751A (ja) * | 2001-11-06 | 2003-05-16 | Juki Corp | マスタスレーブ式xy位置決め制御装置及び電子部品搭載装置 |
JP2006202019A (ja) * | 2005-01-20 | 2006-08-03 | Fanuc Ltd | 制御装置 |
JP2010038896A (ja) * | 2008-07-11 | 2010-02-18 | Yokogawa Electric Corp | 速度検出装置および位置検出装置および位置決め装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017041075A (ja) * | 2015-08-19 | 2017-02-23 | 株式会社安川電機 | モータ制御装置、位置制御システム、及びモータ制御方法 |
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US8947036B2 (en) | 2015-02-03 |
JPWO2011101897A1 (ja) | 2013-06-17 |
KR101440702B1 (ko) | 2014-09-17 |
TW201128341A (en) | 2011-08-16 |
CN102763050A (zh) | 2012-10-31 |
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TWI412908B (zh) | 2013-10-21 |
US20120299524A1 (en) | 2012-11-29 |
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