SODICK CO., LTD. Patent applications |
Patent application number | Title | Published |
20160107232 | THREE DIMENSIONAL PRINTER - A lamination molding apparatus capable of supplying a material powder steadily to a recoater head, is provided. A lamination molding apparatus including a chamber covering a desired molding region and being filled with an inert gas having a desired concentration; a recoater head moving in the chamber to supply a material powder on the molding region to form a material powder layer; and a material supplying unit to supply the material powder to the recoater head; wherein the recoater head includes a material holding section to hold the material powder; and a material discharging opening to discharge the material powder in the material holding section. | 04-21-2016 |
20160107229 | THREE DIMENSIONAL PRINTER - A lamination molding apparatus which can improve the lamination molding accuracy, is provided. A lamination molding apparatus, including a chamber covering a desired molding region, the chamber being filled with an inert gas of a predetermined concentration; and a molding table provided in the molding region, the molding table being configured so as to be capable of being moved vertically by a driving mechanism; wherein the molding table is configured to be temperature-controllable; and a thermostatic section is provided in between the molding table and the driving mechanism or in the driving mechanism, temperature of the thermostatic section being maintained substantially constant, is provided. | 04-21-2016 |
20160101469 | THREE DIMENSIONAL PRINTER - A lamination molding apparatus which can lower the oxygen concentration in a molding room in short time is provided. A lamination molding apparatus, including a molding room; a processing head; a driving device housing room housing a driving device moving the processing head; a partitioning section to partition the molding room from the driving device housing room; a discharging section to discharge gas in the molding room; and an inert gas supplying apparatus to supply the inert gas to both of the molding room and to the driving device housing room. | 04-14-2016 |
20160096325 | THREE DIMENSIONAL PRINTER - A powder sintering lamination molding method which can improve the quality of the molded product without extending the time required for the lamination molding. A powder sintering lamination molding method, including the steps of, irradiating an irradiation region of the sliced layer of a molded product surrounded by an outline profile with a laser to selectively sinter the material powder of the material powder layer within the irradiation region; wherein a cooling period is provided after the laser is irradiated along the first line and before the laser is irradiated along the second line. | 04-07-2016 |
20160067781 | THREE DIMENSIONAL PRINTER - A lamination molding apparatus which can remove the non-sintered material powder after completion of lamination molding easily and with less time after completion of laminating/molding, is provided. According to embodiments of the present invention, a lamination molding apparatus to conduct lamination molding using a material powder, including: a chamber filled with an inert gas having a predetermined concentration; a molding table provided in the chamber, the molding table being capable of moving vertically; a powder retaining wall surrounding the molding table so as to retain the material powder supplied on the molding table; and a powder discharging section provided on or below the powder retaining wall, the powder discharging section being capable of discharging the material powder, is provided. | 03-10-2016 |
20150367574 | THREE DIMENSIONAL PRINTER - An improved lamination molding apparatus which can maintain the inert gas environment in the chamber as well as remove the fume swiftly and efficiently away from the optical pathway of the laser beam, is provided. | 12-24-2015 |
20150367573 | THREE DIMENSIONAL PRINTER - An improved lamination molding apparatus which can remove the fume swiftly and efficiently away from the optical pathway of the laser beam, is provided. | 12-24-2015 |
20140033854 | MACHINE TOOL - A machine tool including: a table disposed on a saddle movable along an X-axis; a pair of linear motors that moves the table along a Y-axis; position detectors that detect a first position and a second position of the table on the Y-axis; a pair of guide rails attached to the saddle; and four bearings engaged with the pair of guide rails, is provided. The machine tool includes a connecting unit connecting the table to the four bearings such that the table is rotatable relative to the four bearings, and a control unit that controls the pair of linear motors on the basis of the first and second positions. | 02-06-2014 |
20140009076 | STRAIGHT TUBE LED ILLUMINATION LAMP - This straight tube LED illumination lamp includes the following: an LED element; a first plug having an input-output terminal and an empty terminal; a second plug having an input-output terminal and an empty terminal; a first rectifier that is connected to the input-output terminal of the first plug and the empty terminal of the second plug in order to convert alternating current to direct current; a second rectifier that is connected to the input-output terminal of the second plug and the empty terminal of the first plug in order to convert alternating current to direct current; and a bypass circuit through which current is flown back from either the first or second rectifier to the other rectifier. The bypass circuit has a current-limiting resistor to prevent the first and second rectifiers from being damaged. | 01-09-2014 |
20130320781 | MOVEMENT DEVICE HAVING LINEAR MOTOR - A movement device includes: a linear motor including a mover and a stator and moving a movement body including the mover in one axial direction; a rotational motor having a rotor and included in the movement body; and a control device. The rotation axis of the rotor passes through the center of gravity of the movement body and intersects a plane including the center of gravity and the path of movement of the mover. The control device controls the rotation of the rotor so that the counter rotational torque which compensates at least a part of rotational torque acting on the movement body due to the movement of the mover is generated in the rotor. | 12-05-2013 |
20130240486 | WIRE ELECTRICAL DISCHARGE MACHINING DEVICE - Provided is a wire electrical discharge machining device which has a tension controller for maintaining the tension of a traveling wire electrode at a tension. The tension controller includes: an allowed tension calculation module for determining an allowed tension that is less than a wire breaking tension at which the wire electrode breaks; and a set tension generation module for generating the set tension in accordance with the allowed tension. When the set tension is greater than the allowed tension, the set tension generation module reduces the set tension. When the set tension is less than the allowed tension, the set tension generation module increases the set tension in such a way that the set tension does not exceed the allowed tension. | 09-19-2013 |
20130112659 | POWER SUPPLY SYSTEM FOR WIRE ELECTRIC DISCHARGE MACHINING - A power supply system for wire electric discharge machining includes a first power supply circuit and a second power supply circuit. The first power supply circuit applies, to the machining gap, a voltage that induces a discharge. The second power supply circuit, which includes a low inductance line, supplies a current, which contributes to the machining, to the machining gap. A blocking diode is series-connected between the low inductance line and the machining gap. A container, which has a contact surface contacting with the blocking diode and contains a cooling liquid, is provided. | 05-09-2013 |
20130037522 | AUTOMATIC WIRE THREADER FOR WIRE ELECTRIC DISCHARGE MACHINING APPARATUS - Provided is an automatic wire threader for a wire electric discharge machining apparatus including a jet nozzle ( | 02-14-2013 |
20120193878 | COLORED CERAMIC VACUUM CHUCK AND MANUFACTURING METHOD THEREOF - In the present invention, a ceramic vacuum chuck | 08-02-2012 |
20120024821 | WIRE ELECTRIC DISCHARGE MACHINING APPARATUS - A wire electric discharge machining apparatus for machining a workpiece ( | 02-02-2012 |
20110240558 | METHOD FOR RECOVERING CORROSION PREVENTIVE AGENT IN ELECTRODISCHARGE MACHINING LIQUID SUPPLY APPARATUS - Disclosed is a method for recovering a corrosion preventive agent in an electrodischarge machining liquid supply apparatus. The method includes the step of passing a first electrodischarge machining liquid having a corrosion preventive agent added there to through, an ion exchange resin column to maintain a suitable specific resistance of the first liquid, and the step of passing a second liquid free from a corrosion preventive agent through the ion exchange resin column to desorb the corrosion preventive agent adsorbed in the ion exchange resin column. The second liquid is, for example, tap water or a machining liquid having a low corrosion preventive agent concentration. The corrosion preventive agent is, for example, adenine which is a purine base. | 10-06-2011 |
20110233172 | WIRE GUIDE HOUSING FOR WIRE ELECTRICAL DISCHARGE MACHINING DEVICE - A wire guide housing ( | 09-29-2011 |
20110220615 | POWER SUPPLY DEVICE FOR SINKER ELECTRIC DISCHARGE MACHINING - A power supply device comprises a DC power supply ( | 09-15-2011 |
20110198946 | LINEAR MOTOR COIL ASSEMBLY WITH COOLING DEVICE - A linear motor coil assembly includes a base plate ( | 08-18-2011 |
20100213176 | SINKER ELECTRIC DISCHARGE MACHINING METHOD, AND SINKER ELECTRIC DISCHARGE MACHINING APPARATUS - A sinker electric discharge machining apparatus for machining a workpiece by generating electric discharge in a work gap by applying a voltage having an OFF time, may include a discriminator for generating a first signal representing an abnormal state of the work gap, and a second signal representing a normal state of the work gap; and a pulse controller, in which a first extension factor and a second extension factor that is smaller than the first extension factor are set and a first reduction factor and a second reduction factor that is smaller than the first reduction factor are set. The pulse controller extends the OFF time using either the first or the second extension factor if the first signal is received. The pulse controller reduces the OFF time using either the first or the second reduction factor if the second signal is received. | 08-26-2010 |
20100090708 | ELECTRIC DISCHARGE DETECTION METHOD AND ELECTRIC DISCHARGE MACHINING APPARATUS - An electric discharge machining apparatus having a gate signal generator for generating a gate signal, a power source for applying a voltage across a work gap formed between a tool electrode and a workpiece, a gap voltage detector for detecting a gap voltage of the work gap, an electric discharge detector for supplying an electric discharge detection signal representing electric discharge to the gate signal generator. The electric discharge detector includes a counter for generating a sample clock having a frequency greater than the frequency of the gate signal, and a comparator for receiving the gap voltage and determining that a fall in the gap voltage is larger than a specified voltage difference in each sample clock. The electric discharge detection signal is generated in response to an output signal of the comparator. | 04-15-2010 |
20090133245 | ENHANCED CORELESS ALTERNATING CURRENT LINEAR MOTOR AND METHOD OF PRODUCING THE SAME - A coreless AC linear motor, including a magnet assembly forming a magnetic gap, and a can, the can further including a coil housing section forming a deep groove. The motor also includes a plurality of coreless coils inserted into the deep groove and arranged in a straight line inside the magnetic gap, and a cover body for sealing the can. | 05-28-2009 |
20090112341 | CONTROL DATA CREATION DEVICE FOR MACHINING, AND PROGRAM THEREFOR - An NC data creation device for creating NC data for forming at least one shape by electric discharge machining using at least two blades formed on one or more tool electrodes. Blade registration means registers the at least two blades (Q). Step registration means registers at least two steps to form the at least one shape (P). Blade assignment means assigns the at least two blades to the at least two steps. NC data creation means creates NC data including the at least two steps. The NC data creation means may create position commands for causing movement of the tool electrodes between two consecutive steps. | 04-30-2009 |
20090065483 | WIRE ELECTRIC DISCHARGE MACHINING METHOD - A wire electric discharge machining method for cutting a workpiece while moving a wire electrode, supported between upper and lower wire guides substantially perpendicular to a horizontal program plane, along a program path (PQ) having a start point (P) and an end point (Q) on the program plane. The method of the present invention includes a step of varying a taper angle command (θ) within the program path; a step of acquiring a set allowable error (ε); a step of obtaining one or more dividing points (D | 03-12-2009 |