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1. 发明专利

JPS63279116A MULTI-ROTATION TYPE ABSOLUTE ENCODER HAVING NO GEAR COUPLING 失效
公开(公告)号：JPS63279116A
公开(公告)日：1988-11-16
申请号：JP11540087
申请日：1987-05-12
申请人： SHICOH ENG CO LTD , TOYODA MACHINE WORKS LTD
发明人： SHIRAKI MANABU , YOKOE ISAMU , TAKANO TOSHIO , TANAGI YASUNORI
IPC分类号： G01D5/249 , G01D5/245 , H03M1/24
摘要： PURPOSE:To perform absolute counting and display with good accuracy, by counting an absolute value of multi-rotation per rotation of an absolute encoder by an one-rotation absolute value counting part and a multi-rotation counting part. CONSTITUTION:The absolute value per rotation of an absolute encoder 2 is counted by an one-rotation absolute value counting part 36. In the case of multi- rotation, said absolute value is counted by a multi-rotation counting part 39 and the number of multi-rotations are stored in a number-of-multi-rotation memory part 20. If necessary, the absolute value and the number of multi- rotations are instantaneously read from the memory part 20 to be displayed on an one-rotation absolute value display part 38 and a number-of-multi-rotation display part 40. Then, the multi-rotation absolute value of the whole is counted by the one-rotation absolute value counting part 36 and the number-of-multi- rotation counting part 39.

2. 发明专利

JP2003223206A COMPENSATION METHOD OF NC DATA FOR GENERATION-GRINDING CONTROLLING NUMERICALLY CONTROLLED GRINDER, AND NUMERICAL CONTROL GRINDER CONDUCTING METHOD THEREOF 审中-公开
公开(公告)号：JP2003223206A
公开(公告)日：2003-08-08
申请号：JP2002022008
申请日：2002-01-30
申请人： TOYODA MACHINE WORKS LTD
发明人： HORI NOBUMITSU , SASAKI YUJI , TAKANO TOSHIO
IPC分类号： B24B5/42 , B24B19/12 , G05B19/404
摘要： PROBLEM TO BE SOLVED: To provide a method which performs compensation of NC data which can satisfy dynamic characteristics. SOLUTION: In the method, the grinding part of a workpiece is generation-ground by NC data made, based on finishing size at each phase angle from a reference line of the grinding part of the structure, each measurement size at each phase angle from the reference line of the grinding part is measured, each finishing size and measurement size at each phase angle are transformed through Fourier transform, each amplitude ratio of each frequency component of Fourier series of each finishing size to Fourier series of each measurement size is calculated, each amplitude ratio is multiplied by the amplitude of each of the frequency components of Fourier series of the fishing size, the difference between the phase of each frequency component of Fourier series of the measurement size and the phase of each frequency component of Fourier series of the finishing size is taken, the Fourier series of a compensation size is obtained by subtracting each of the differences from the phase of each frequency component of Fourier series of the finishing size, the correction size at each phase angle is obtained through its inverse Fourier transform, and correction NC data are made based on the correction size. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2002283184A MACHINING CONTROL METHOD, ITS RECORDING MEDIUM AND ITS DEVICE 失效
公开(公告)号：JP2002283184A
公开(公告)日：2002-10-03
申请号：JP2001089118
申请日：2001-03-27
申请人： TOYODA MACHINE WORKS LTD
发明人： MATSUDA OSAMU , ARIO GORO , TAKANO TOSHIO
IPC分类号： B23Q15/00 , B23G1/16
摘要： PROBLEM TO BE SOLVED: To provide a machining control method, its recording medium, and its device requiring no recalculation of a feed speed and a main spindle target position by an operator, and capable of easily changing a preparatory plan in a short time even when a kind of a tap and cutting tool changes, and an installing position on a spindle head changes. SOLUTION: This device has the spindle head for joining various kinds of taps or boring tools and a main spindle motor shaft by a gear. This method controls machining on the basis of a machining command for controlling a position or a speed of a feed shaft and a main spindle. A parameter table with a system parameter for controlling the feed shaft and the main spindle as one block is stored by a large number of blocks, a desired parameter table is selected according to a required machining command, and the position or the speed of the feed shaft and the main spindle is controlled according to the selected parameter table to cope with any gear combination of the spindle head. The parameter table can have a plurality of general purpose tools.

4. 发明专利

JP2002019948A CONTROL DEVICE FOR CARRYING DEVICE 失效
公开(公告)号：JP2002019948A
公开(公告)日：2002-01-23
申请号：JP2000207126
申请日：2000-07-07
申请人： TOYODA MACHINE WORKS LTD
发明人： SUGIURA TAKAAKI , AONO TOSHIO , TAKANO TOSHIO
IPC分类号： B23Q41/02 , B65G43/00 , G05B13/02 , G05D3/12
摘要： PROBLEM TO BE SOLVED: To smoothly carry a workpiece to a precise position. SOLUTION: A load applied on a motor 42A for a first lift part 40A radically increases at the time when a slide member 70 moves to the first lift part 40A (2) and a workpiece holding part 80 holds the workpiece W. Additionally, a load of a motor 42B for a second lift part 40B radically increases at the time when the slide member 70 moves to the second lift part 40B (4). The carrier part 70 is smoothly elevated by maintaining synchronism of the first and second motors by adding an acceleration control part to a position and speed control part against such radical load variation.

5. 发明专利

JPH06289915A DIGITAL SERVO CONTROLLER 失效
公开(公告)号：JPH06289915A
公开(公告)日：1994-10-18
申请号：JP9858493
申请日：1993-03-31
申请人： TOYODA MACHINE WORKS LTD
发明人： YONEDA TAKAO , TAKANO TOSHIO , KOMURO KATSUHIRO , SHIMOGOE AKIRA , KAMIYA SHINGO , SUGIURA NORIHISA
IPC分类号： G05B11/36 , G05B19/18 , G05B19/19 , G05D3/12
摘要： PURPOSE:To prevent followup delay at the time of acceleration or deceleration by computing angular acceleration from the time fluctuation of a target angle and moments of inertia around respective shafts in accordance with the target angle and computing a correction angle based on them. CONSTITUTION:In a step (omitted heroinafter) S400, a detection angle is read out of an encoder, and angular velocity and angular acceleration are computed in S402. In S404, the latest values of gravity torque and the moment of inertia are received. In S406, an angular velocity command value is received. In S408, the moment of inertia around a control shaft is computed against the angle of the control shaft and a position feedback loop is corrected by adding the correction angle computed based on the angular velocity and the moment of inertia at that time. In S410, an angular deviation is computed, and the angular velocity command value is computed in S412. In S414, angular velocity is feed- forward corrected. Target current is addition-corrected based on the angular velocity and the moment of inertia. Thus, followup delay at the time of acceleration and deceleration can be prevented.

6. 发明专利

JPH04138096A MOTOR CONTROLLER 失效
公开(公告)号：JPH04138096A
公开(公告)日：1992-05-12
申请号：JP25922190
申请日：1990-09-27
申请人： TOYODA MACHINE WORKS LTD
发明人： ENOMOTO MINORU , TAKANO TOSHIO , SAKUGI YASUNORI , KAMIYA SHINGO
IPC分类号： H02P27/06
摘要： PURPOSE:To prevent fluctuation of motor output torque by splitting the duration each of a series of control signals, produced with a control period equal to 1/n of the period of rotary field, into m sections and then outputting a set of split control signals m times. CONSTITUTION:Durations of a set of voltage vectors V6, V1, V0 are t1, t2, t3 which are split into four sub-durations of t1*, t2*, t3*, t4*. During first T/4 period, PWM signals comprising a set of forward voltage vectors V6, V1, V0 are outputted for the durations t1*, t2*, t3*, t4*, respectively. During second T/4 period, PWM signals comprising a set of reverse voltage vectors V0, V1, V6 are outputted for durations t3*, t2*, t1*, respectively. During third and fourth periods, PWM signals comprising a set of voltage vectors are outputted similarly. In such a manner, a single control period T completes with four continuous split periods.

7. 发明专利

JPS63177206A NUMERICAL CONTROLLER 失效
公开(公告)号：JPS63177206A
公开(公告)日：1988-07-21
申请号：JP880487
申请日：1987-01-17
申请人： TOYODA MACHINE WORKS LTD , TOYOTA MOTOR CORP
发明人： ENOMOTO MINORU , TAKANO TOSHIO , SATO HIDEKI , IGAWA MASAHARU , SUGITO YASUNORI , ITO MASASHI , TAKEUCHI AKIHIRO
IPC分类号： G05B19/18 , B23Q15/00 , G05B19/404
摘要： PURPOSE:To simplify the production of a positioning program by correcting and positioning the target position of only the indexing position to which the correction is commanded with the positioning deviation obtained from an external positioning action and therefore correcting other indexing positions just by a single positioning action. CONSTITUTION:The target position is set for the indexing position of a movable shaft of a machine tool, etc., by a target position setting means A of a position control device. Then the movable shaft is positioned by an external position means B. At the same time, the deviation between the present position of the movable shaft positioned by the means B and the target position set by the means A in response to said present position of the movable shaft is set as the correction value of an indexing position obtained by a correction value setting means C. In addition, an indexing position is set at a corrected indexing position designating means D for correction of the set target position. Then the position of the indexing position designated by the means D is corrected by the value set by the means C and delivered by an indexing position correcting means E.

8. 发明专利

JPS61169715A RESOLVER 失效
公开(公告)号：JPS61169715A
公开(公告)日：1986-07-31
申请号：JP1130285
申请日：1985-01-23
申请人： TOYODA MACHINE WORKS LTD
发明人： TAKANO TOSHIO
IPC分类号： G01B7/30 , G01B7/00 , G01D5/20 , G01D5/245
摘要： PURPOSE:To facilitate the manufacture and assembling of windings a great deal, by forming a pair of stator windings and a rotor winding in a disc to be arranged to face each other so as to enable miniaturization with a drastically reduced axial length of a resolver. CONSTITUTION:When current with I=Im Sinomegat is fed to a first stator winding 17 and current with I=Im Cosomegat to a second stator winding 18, a magnetic flux is generated in a loop-shaped magnetic path piercing the stator windings 17 and 18 and the rotor winding 19 due to a magnetic field to be generated with the pair of stator windings 17 and 18. With such an arrangement, an induced voltage is generated in the rotor winding 19, the phase of the voltage induced in the rotor winding 19 varies with the value of the angle theta of rotary deviation of the rotor winding 19 with the stator windings 17 and 18. Thus, the rotary angle position of the input shaft 10 can be detected by checking the phase of a signal to be outputted from the rotor winding 19.

9. 发明专利

JPS60151514A ROTARY ENCODER 失效
公开(公告)号：JPS60151514A
公开(公告)日：1985-08-09
申请号：JP696484
申请日：1984-01-18
申请人： TOYODA MACHINE WORKS LTD
发明人： TAKANO TOSHIO , SAKAKIBARA YOSHIO
IPC分类号： G01D5/243
摘要： PURPOSE:To improve the resolution of a rotary encoder without increasing an exciting coil by specifying the constitution of a stator, etc., equipped with a cylindrical base part which surrounds the outer circumference of a rotor and an input shaft and forms a magnetic path. CONSTITUTION:A rotor part 16 which rotates together with the input shaft 10 is provided with a desired number of projection parts 28a, 28b... as rotary electrode parts at equal intervals. A stator part 20 which forms the rotary encoder together with the rotor part 16 and is fixed to a casing 13 consists of four 90 deg.-interval leg parts 27a-27d equipped with electrode parts 28a-28d which are equipped with exciting coil 33a-33d supplied with 90 deg. out-of-phase sine waves for excitation and face projection parts 23a, 23b..., the cylindrical base part 26 which surrounds the shaft 10 and forms a magnetic path, a detection coil 35 which is provided to the base part and detects lines of magnetic force corresponding to the angle of rotation, etc. Consequently, the same resolution which is obtained by increasing the number of the exciting coil is obtained by increasing rotary electrode parts of the rotor, and the resolution of the rotary encoder is therefore improved without increasing the number of the exciting coil.

10. 发明专利

JPS51140754A ROTATING ANGLE DETECTOR OF RESOLVER 失效
公开(公告)号：JPS51140754A
公开(公告)日：1976-12-03
申请号：JP6570875
申请日：1975-05-30
申请人： TOYODA MACHINE WORKS LTD
发明人： ETOU KUNIHIKO , TAKANO TOSHIO
IPC分类号： G01D5/245 , G01B7/30
摘要： PURPOSE:To detect the rotating angle of resolver with high accuracy without raising the frequency of clock pulse line which constitutes the measure of detecting the phase difference between the excitation voltage the stator winding and the induction voltage generated in the rotor winding.

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