Patent application number | Description | Published |
20130114861 | DEVICE AND METHOD FOR RECOGNIZING THREE-DIMENSIONAL POSITION AND ORIENTATION OF ARTICLE - A recognition device and method capable of recognizing 3D position and orientation of an article at low calculation cost. A 2D image of a region, where articles are randomly located, is obtained by a camera, and 3D information of generally the same region is obtained by a range sensor. A space, where an article to be taken out is considered to exist, is roughly limited. Based on the limited space, a search condition for searching the article by 2D image processing is set, and 2D positional information on the image of the article is obtained. Then, 3D point data used to recognize the 3D position and orientation of the article is selected, and a view line in the 3D space, extending from the camera to the article, is calculated, whereby the 3D position and orientation of the article is calculated. | 05-09-2013 |
20130151214 | SIMULATOR FOR ESTIMATING LIFE OF ROBOT SPEED REDUCER - A simulator ( | 06-13-2013 |
20130161293 | WIRE ELECTRIC DISCHARGE MACHINE DISSOLVING INTERT GAS IN MACHINING FLUID AND WIRE ELECTRIC DISCHARGE MACHINING METHOD USING THE SAME - A wire electric discharge machine machines a workpiece immersed in an electrically conductive water-based machining fluid stored in a machining vessel. An inert gas dissolver is provided in the wire electric discharge machine to pressurize the machining fluid, dissolve an inert gas into the pressurized machining fluid, and depressurize the machining fluid, such that wire discharge machining is carried out in the machining fluid containing the inert gas dissolved therein. | 06-27-2013 |
20130162091 | ROTATIONAL ELECTRIC MOTOR AND ROTOR THEREOF HAVING STRUCTURE FOR PREVENTING LAMINATED CORE FROM BEING DAMAGED - A rotor of a rotational electric motor including a core formed from laminated magnetic steel sheets, and a plurality of magnet arrays extending in a laminating direction of the core is provided. Magnets forming each of the plurality of magnet arrays are selected from first magnets and second magnets. A ratio of the length of the first magnet to that of the second magnet is one to two. The magnet arrays are arranged such that they include at least two of the second magnets and boundary planes between the magnets are offset relative to each other so as not to coincide with each other in a direction perpendicular to the laminating direction. | 06-27-2013 |
20130178974 | NUMERICAL CONTROLLER WITH AUXILIARY COMMAND EXECUTION FUNCTION - When a program command read from a machining program is an auxiliary command, a command associated with the auxiliary command is transmitted. Monitoring of reception of a completion signal corresponding to the command is started. When the completion signal is not received, and when the auxiliary command is a command indicating the unnecessity of waiting to receive the completion signal, determination is made as to whether or not a condition for ending the monitoring of the completion signal corresponding to the auxiliary command is satisfied without receiving the completion signal. When the condition is satisfied, an error process is executed to end the execution of the machining program. | 07-11-2013 |
20130181547 | ELECTRIC MOTOR COMPRISING IRON CORE HAVING PRIMARY TEETH AND SECONDARY TEETH - An electric motor includes a rotor including an iron core and a plurality of windings, and a stator including a plurality of permanent magnets forming a plurality of poles. The iron core has a plurality of primary teeth around each of which a winding is wound and a plurality of secondary teeth around each of which no winding is wound. The primary teeth and the secondary teeth are formed alternately with each other. The electric motor is configured such that a ratio between the number of poles formed by the permanent magnets of the stator and the number of phases formed by the windings of the rotor is 4m:3n (m and n are any natural numbers, excluding the case where m:n=2:3 is satisfied). | 07-18-2013 |
20130193897 | MOTOR DRIVE PWM RECTIFIER HAVING MODULATION SCHEME SELECTOR - A motor drive PWM rectifier includes a control section which generates the PWM signal in accordance with either a three-phase modulation scheme or a two-phase modulation scheme in which a PWM voltage command for one phase selected from among three phases each constituting the PWM voltage command in the three-phase modulation scheme is set and held at a level equivalent to a maximum value or minimum value of the PWM carrier and in which a PWM voltage command for the other two phases created by also applying an offset, required to achieve the setting, to the other two phases, a detecting section which detects three-phase AC current and outputs a detected current value, and a selecting section which selects the two-phase modulation scheme when the detected current value is larger than a first threshold value but smaller than a second threshold value, and otherwise selects the three-phase modulation scheme. | 08-01-2013 |
20130193900 | MOTOR DRIVE CONTROL DEVICE FOR LIMITING OUTPUT OF MOTOR - If it is predicted that the sum of the output of a servo motor and the output of a spindle motor exceeds power supplied by a rectifier unit, during a cutting operation, a motor drive control device controls alternating-current power of a first inverter unit so as to reduce the feed speed of at least one feed axis and controls alternating-current power of a second inverter unit so as not to limit torque of the spindle motor. Further, if it is predicted that the sum of the output of the servo motor and the output of the spindle motor exceeds power supplied by the rectifier unit, during an operation other than the cutting operation, the motor drive control device controls the alternating-current power of the second inverter unit so as to limit the torque so as not to reduce the feed speed. | 08-01-2013 |