Patent application number | Description | Published |
20130206730 | WIRE ELECTRIC DISCHARGE MACHINE HAVING FUNCTION FOR CONTROLLING MACHINING LIQUID TEMPERATURE - A wire electric discharge machine has a function for controlling the machining liquid temperature. When it is predicted that the machining liquid temperature rises linearly, the machining liquid begins to be warmed at time t | 08-15-2013 |
20130206731 | WIRE ELECTRIC DISCHARGE MACHINE PERFORMING DISTORTION REMOVING MACHINING - When contact between a wire electrode and a workpiece is detected while, after wire electric discharge machining is ended, the wire electrode is moved (retraced) in the direction opposite to the machining direction along the machining path, the movement of the wire electrode is stopped. The wire electrode is moved in the offset direction from the contact position. When the wire electrode and the workpiece are brought into a non-contact state, the non-contact state is detected, and the movement of the wire electrode is stopped. The wire electrode is returned from the non-contact position to the machining path, and the wire electrode is retraced along the machining path in the state where the detection of contact between the wire electrode and the workpiece is neglected. Then, an amount of distortion of the workpiece is calculated from the contact position and the non-contact position. | 08-15-2013 |
20130207505 | ROTOR WITH REINFORCED SQUIRREL-CAGE CONDUCTIVE BODY AND MANUFACTURING METHOD THEREOF - A rotor including a cylindrical iron core having a through hole for receiving a rotational shaft, and a squirrel-cage conductive body including a plurality of conductive bars and a pair of annular conductive end rings provided at both ends of the plurality of conductive bars is provided. The conductive bars extend along a direction in which the rotational shaft is received and are arranged at an outer circumference of the iron core at certain intervals. The rotor further includes a conductive reinforcing layer extends on at least a part of an outer surface of the conductive end ring. The conductive reinforcing layer is formed by spraying conductive particles in a solid phase onto the outer surface of the conductive end ring. | 08-15-2013 |
20130211577 | WIRE ELECTRIC DISCHARGE MACHINE PERFORMING TURNING TOOL MACHINING, TURNING TOOL MACHINING METHOD WITH WIRE ELECTRIC DISCHARGE MACHINE, AND PROGRAM CREATION APPARATUS FOR WIRE ELECTRIC DISCHARGE MACHINE THAT PERFORMS TURNING TOOL MACHINING - A measurement program for sequentially measuring measurement points, which are to be measured with a touch sensor, is created on the basis of a machining program, which is read in, for machining a turning tool. Then, the rake face height is measured on each of the measurement points and the measurement data is stored. Subsequently, a calculation method of a correction amount is selected so as to calculate the correction amount, and whether or not the calculated correction amount is smaller than a regulation value is determined. The machining program is modified on the basis of the correction amount when the correction amount is not smaller than the regulation value, while the machining program is modified on the basis of the correction amount in accordance with the selected method when the correction amount is smaller than the regulation value. | 08-15-2013 |
20130211598 | WARM-UP CONTROL DEVICE FOR MACHINE TOOL - Prior to machining a workpiece, a warm-up control device for a machine tool is activated to perform a warm-up in which a main shaft rotary drive part and axes drive parts are driven. The amount of displacement of heat that is generated upon starting of the warm-up and changes with time is calculated every predetermined time period. Whether to end the warm-up is determined based on the thermal displacement amount. Whether to restart the warm-up after the end of the warm-up is determined based on the thermal displacement amount. When it is determined to restart the warm-up, the warm-up is restarted. | 08-15-2013 |
20130214620 | ROTOR OF ELECTRIC MOTOR HAVING STRUCTURE FOR ATTACHING MAGNET SECURELY TO OUTER CIRCUMFERENTIAL SURFACE OF ROTOR CORE AND MANUFACTURING METHOD THEREOF - In accordance with the present invention, a rotor of an electric motor including a rotor core, a plurality of magnets spaced apart from each other on an outer circumferential surface of the rotor core, and a cylindrical protective pipe surrounding the magnets is provided. The protective pipe has an inner diameter smaller than a diameter of a circumscribed circle passing through tops of outer surfaces of the magnets. A space defined by an inner surface of the protective pipe, the outer surfaces of the magnets and the outer surface of the rotor core is filled with resin, and the protective pipe is held so as to have a diameter larger than that of the circumscribed circle, due to injection pressure of the resin. | 08-22-2013 |
20130218323 | NUMERICAL CONTROLLER WITH MACHINING CURVE CREATING FUNCTION - Provided is a numerical controller having a machining curve creating function. A command point sequence is divided into a plurality of segments and a segment curve corresponding to each segment command point sequence is created. The segment curve is created so that a distance of the segment curve from the segment command point sequence is within a permissible value set in advance, and the maximum number of command points are included between a starting point and an ending point of the segment command point sequence. This process of segment curve creation is repetitively executed from the starting point to the ending point of the command point sequence to create a machining curve. Subsequently, the machining curve is interpolated and drive axes of a machine tool are moved to the interpolated positions on the machining curve. | 08-22-2013 |
20130218324 | ARTICLE ASSEMBLING DEVICE USING ROBOT - An assembling device which does not use a positioning device for articles to be assembled, nor a feeder mechanism and a pneumatic mechanism for a bolt for assembling. The article assembling device includes a first robot which takes out and aligns a bolt by using a detection result of a first camera; a second robot which grips a first article by using a detection result of a second camera and conveys the first article to a position where the first article can be attached to a second article; and a bolt holding and fastening section which fastens the articles by using the aligned bolt. | 08-22-2013 |
20130219789 | TWO-STAGE LINKED SLIDING DOOR OF MACHINE TOOL - A two-stage linked sliding door of a machine tool is provided with a first door half and a second door half movable through different strokes. Pulleys are disposed individually at two opposite end portions of the second door half, and a wire is stretched between the pulleys. The opposite end portions of the wire are secured to the door frame or the first door half by two wire tensioning springs, individually, such that the opposite end portions face each other. These two springs are juxtaposed and offset with each other so that their respective central axes do not line on the same axis. | 08-29-2013 |
20130220979 | WIRE ELECTRICAL DISCHARGE MACHINE AND WIRE ELECTRICAL DISCHARGE METHOD FOR REDUCING MACHINING DAMAGE DURING CUTTING MACHINING AND ESCAPE MACHINING - A wire electrical discharge machine includes an approach control unit. The approach control unit relatively moves a wire electrode with respect to a workpiece while inclining the wire electrode within a plane parallel to the machining surface to which the wire electrode approaches, in an approach section where the wire electrode performs cutting machining on the machining surface of the workpiece. | 08-29-2013 |
20130221888 | MOTOR DRIVE APPARATUS EQUIPPED WITH DYNAMIC BRAKING CONTROL UNIT - A motor drive apparatus includes an inverter which has an upper and lower arms each provided with a plurality of semiconductor switching devices and free-wheeling diodes connected in reverse parallel with respective ones of the plurality of semiconductor switching devices, wherein the semiconductor switching devices are controlled on and off to convert DC to AC, a short-circuiting unit which includes a selector switch between motor phase windings of a synchronous motor, the selector switch being opened and closed under the control of a command, and a dynamic braking control unit which, upon reception of a dynamic braking start command, performs control so as to turn on all of the semiconductor switching devices provided in either one of the upper and lower arms and to turn off all of the semiconductor switching devices provided in the other arm, and thereafter controls the short-circuiting unit so that the selector switch is closed. | 08-29-2013 |
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 |