| Patent application number | Description | Published |
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| 20120257276 | TOOL PATH DISPLAY APPARATUS FOR MACHINE TOOL - A tool path display apparatus, configured to display a three-dimensional path of a movable part of a machine tool, calculates three-dimensional coordinate values of the movable part as viewed from a coordinate system secured to a workpiece, thereby determining the three-dimensional path of the movable part. Left- and right-eye stereoscopic image data are determined based on the determined three-dimensional path of the movable part, and the determined left- and right-eye stereoscopic image data are displayed on the display apparatus so that they can be viewed by an operator's left and right eyes, respectively. | 10-11-2012 |
| 20120306413 | MOTOR DRIVING DEVICE COMPRISING MAXIMUM OUTPUT CALCULATION UNIT OF DIRECT CURRENT CONVERSION UNIT - A motor driving device comprises: a single DC conversion unit that converts input AC into DC; a plurality of AC conversion units that convert DC output from the DC conversion unit into AC supplied to a plurality of motor units as driving electric power; an electric power consumption calculation unit of the DC conversion unit that calculates electric power consumption of the DC conversion unit from the input voltage and input current to the DC conversion unit every predetermined time period; and a maximum output calculation unit of the DC conversion unit that extracts a maximum value from the electric power consumption of the DC conversion unit calculated every predetermined time period and outputs it as a maximum output of the DC conversion unit. | 12-06-2012 |
| 20130030558 | NUMERICAL CONTROLLER OF MACHINE TOOL HAVING SOUND CONVERTING UNIT - A numerical controller, wherein an operator, even remotely, can recognize a sound of a machine tool or the like, and can intuitively know the effect in adjusting the parameter. The numerical controller includes a drive axis controlling part configured to control a drive axis; a drive axis data storing part configured to obtain a physical quantity of the drive axis as time-series data and store the time-series data; a displaying part configured to convert the time-series data into a predetermined indication form and display the data as at least one displayed waveform; a selecting part configured to select the displayed waveform by input operation of the operator; a sound converting part configured to convert the selected waveform into sound conversion data, a type of which is capable of being output as sound; and a sound outputting part configured to output the generated sound conversion data as sound. | 01-31-2013 |
| 20130054182 | TOOL PATH DISPLAY APPARATUS HAVING DISPLAY UNIT FOR ACCELERATION OR JERK OF TOOL TIP POINT - A tool path display apparatus ( | 02-28-2013 |
| 20130076287 | NUMERICAL CONTROLLER HAVING DISPLAY FUNCTION FOR TRAJECTORY OF TOOL - A numerical controller capable of visually and accurately analyzing a change of the tool trajectory before and after changing a processing condition, whereby a parameter of a drive axis can be properly adjusted. The numerical controller comprises a numeric controlling part which controls each drive axis based on a predetermined position command; a position data obtaining part which obtains position data of each drive axis controlled by the numerical controlling part; a tool coordinate calculating part which calculates a coordinate of a tool center point based on position feedback or obtained position data of each drive axis and information of a mechanical structure of a machine tool; a tool trajectory storing part which stores the calculated coordinate of the tool center point as a feedback trajectory; and a displaying part which displays the stored feedback trajectory on a display. | 03-28-2013 |
| 20130096700 | NUMERICAL CONTROLLER HAVING DISPLAY FUNCTION OF PHYSICAL DATA OF MACHINE TOOL - A numerical controller having a display function for comparing data at a predetermined position regardless of a change in a processing condition. The numerical controller comprises a numerical controlling part which controls each drive axis based on a predetermined position command; a position data obtaining part which obtains position data of each axis and a tool representative point of the machine tool; a movement distance calculating part which calculates movement distance of the axis and the tool representative point based on the obtained position data and dimensional information of each component of the machine tool; a physical data obtaining part which obtains physical data of each axis and the tool; a data converting part which converts the obtained time axis-based physical data into movement distance-based data; a distance-based data storing part which stores the movement distance-based data; and a displaying part which displays the movement distance-based data. | 04-18-2013 |
| 20130099705 | MOTOR DRIVING DEVICE HAVING REACTIVE CURRENT INSTRUCTION GENERATING UNIT - A motor driving device includes a converter that converts an input alternating current into a direct current, an inverter that inverts the direct current output by the converter into an alternating current for driving a motor, a voltage detecting unit that detects a voltage on a direct current output side of the converter, and a numerical control unit that causes the inverter to output a reactive current to increase electric power consumed in the motor, when the voltage detected by the voltage detecting unit exceeds a predetermined threshold. | 04-25-2013 |
| 20130222391 | WAVEFORM DISPLAY DEVICE WITH DATA MANAGEMENT FUNCTION - A waveform display device with a data management function acquires drive-axis data of a machine tool from a numerical controller for controlling the machine tool and acquires parameters of the numerical controller from the numerical controller. The waveform display device manages the drive-axis data and the parameters in association with each other, based on a time at which the drive-axis data is acquired and a time at which the parameter is acquired. These times of acquisition of the drive-axis data and the parameters are set by a timer of the waveform display device. | 08-29-2013 |
| 20130325166 | NUMERICAL CONTROL DEVICE INCLUDING DISPLAY PART FOR DISPLAYING INFORMATION FOR EVALUATION OF MACHINING PROCESS - A numerical control device according to the present invention includes a display part for displaying a program coordinate and a command coordinate such that they can be compared with each other. The display part may be adapted to further display an actual coordinate. The display part may also be adapted to further display a program trajectory, a command trajectory and an actual trajectory, which are obtained from a machining program and the program coordinate, the command coordinate and the actual coordinate, respectively. | 12-05-2013 |
| 20130338816 | TOOL PATH DISPLAY APPARATUS FOR DISPLAYING TOOL VECTOR OF MACHINE TOOL - A tool path display apparatus includes a display unit for displaying at least two of a program path, a command path and an actual path so that the paths can be compared with each other. The tool path display apparatus further includes a tool vector display unit for displaying tool vectors representative of tool postures corresponding to these paths so that the tool vectors can be compared with each other. Each tool vector is displayed as a line segment connecting a tool tip point and a reference point distant from the tool tip point toward a tool base end side by a predetermined distance. | 12-19-2013 |
| 20140022086 | DATA DISPLAY DEVICE FOR MACHINE TOOL FOR DISPLAYING INFORMATION BASED ON SPECIFIED CONDITION - A data display device is adapted to associate data and parameters obtained from a numerical control apparatus with extracted information selected by an operator, and specify an arrangement condition or a selection condition based on the extracted information. The data display device is also adapted to display controlling information in an arranged manner according to the arrangement condition. Alternatively, the data display device is adapted to display only information in a selective manner which satisfies the condition specified according to the selection condition. | 01-23-2014 |
| 20140100688 | TOOL TRAJECTORY DISPLAY DEVICE HAVING FUNCTION FOR DISPLAYING INVERSION POSITION OF SERVO AXIS - A tool trajectory display device capable of displaying an inversion position of a servo axis on a tool trajectory. The display device has a position information obtaining part and velocity information obtaining part which obtain position information and velocity information of at least one servo axis, respectively, from numerical controller; a tool coordinate calculating part which calculates a coordinate value of a tool center point based on the position information and information of a mechanical constitution of the machine tool; an inversion position calculating part which calculates an inversion position where a polarity of a velocity of the servo axis is changed, based on the velocity information and the calculated coordinate value; and a displaying part which displays a trajectory of the tool center point based on the calculated coordinate, and displays the inversion position of the servo axis on the trajectory. | 04-10-2014 |
| 20140103852 | MOTOR CONTROL DEVICE CONTROLLING A PLURALITY OF MOTORS THAT DRIVE ONE DRIVEN BODY - A state switching unit switches the state of a motor that has caused an alarm, from an excited state to an un-excited state at an alarm generation timing. A state switch timing setting unit sets a state switch timing of switching the state of a motor other than the motor that has caused the alarm, from an excited state to an un-excited state. This setting is made on the basis of a physical quantity concerning at least one of the motor and a driven body. At the set state switch timing, a state switching unit switches the state of the motor other than the motor that has caused the alarm, from an excited state to an un-excited state. | 04-17-2014 |
| 20140167672 | SERVO CONTROLLER FOR CORRECTING POSITION ERROR WHEN MOVING MEMBER REVERSES - A servo controller ( | 06-19-2014 |
| 20140338468 | NUMERICAL CONTROL DEVICE HAVING FUNCTION OF ESTIMATING EXPIRATION OF LIFE OF BEARING SUPPORTING SPINDLE - A numerical control device determines whether or not a spindle is in a cutting state where it machines a workpiece. If the spindle is in a cutting state, the numerical control device calculates a second rotational speed, which is obtained by multiplying a rotational speed of the spindle by a weight corresponding to a force on the spindle calculated based on a torque of a feed shaft, and integrates the calculated value into an index value. If the spindle is not in the cutting state, the numerical control device integrates the rotational speed of the spindle into the index value. The lifetime of a bearing is estimated based on the index value. | 11-20-2014 |
| Patent application number | Description | Published |
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| 20130169208 | PATH DISPLAY APPARATUS CONSIDERING CORRECTION DATA - A path display apparatus includes a first position command acquiring unit that acquires first position command for motors, a first position feedback acquiring unit that acquires first position feedback of each of the motors, a correction data acquiring unit that acquires correction data generated for each of the motors, a second position command calculating unit that subtracts the correction data from the first position command to calculate a second position command, a second position feedback calculating unit that subtracts the correction data from the first position feedback to calculate second position feedback, a command path display unit that displays a command path of the tip point of the tool, based on the second position command; and a feedback path display unit that displays a feedback path of the tip point of the tool, based on the second position feedback. | 07-04-2013 |
| 20130271048 | SYNCHRONOUS MOTOR CONTROL DEVICE FOR CONTROLLING SYNCHRONOUS MOTOR TO CARRY OUT POWER REGENERATIVE OPERATION AND STOP SYNCHRONOUS MOTOR AT THE TIME OF POWER FAILURE - A second q-axis current command value, which is set by a q-axis current command value setting unit when an alternating-current power source fails at the time of driving of a synchronous motor, and a second d-axis current command value, which is set by a d-axis current command value setting unit when the alternating-current power source fails at the time of the driving of the synchronous motor, are set so that an absolute value of power per unit time of the synchronous motor is equal to loss per unit time of the synchronous motor. | 10-17-2013 |
| 20150066434 | DATA ACQUISITION DEVICE FOR ACQUIRING CAUSE OF STOPPAGE OF DRIVE AXIS AND INFORMATION RELATING THERETO - A data acquisition device includes an operational information acquiring part for acquiring operational data from a numerical control device, an active portion acquiring part for acquiring an active portion of a machining program from the numerical control device, a stopping cause acquiring part for acquiring stopping cause information representative of cause of stoppage when the drive axis is stopped, from the numerical control device, and storing part for storing the operational data, the active portion, and the stopping cause information, in association with time of their acquisition, respectively. | 03-05-2015 |
