Abstract: A three-phase reactor includes: a central iron core; an outer peripheral iron core surrounding the central iron core; and at least three connecting units that magnetically connect the central iron core and the outer peripheral iron core to each other, in which each of the connecting units includes at least one connecting iron core, at least one coil wound around the connecting iron core, and at least one gap.
Abstract: A preventive maintenance management system and method, and a cell controller, for monitoring preventive maintenance data, calculating a residual period of time until which a component comes to the end of its life, and generating an appropriate maintenance schedule based thereon. The system has: a cell including machines and machine controllers, a cell controller communicably connected to each machine controller; and a supervisory computer communicably connected to the cell controller. The cell controller has: an analyzing part which detects a deterioration of the component and calculates the residual period of time when the deterioration is detected, based on the monitored preventive maintenance data; and an informing part which informs the supervisory computer of the calculated residual period of time along with an alarm. The supervisory computer has a maintenance scheduling part which generates or updates a maintenance schedule based on the informed residual period of time.
Abstract: A laser oscillator of the present invention comprises: a semiconductor laser module; a first optical fiber for propagating a laser beam from the semiconductor laser module; and a first prism including a first input surface fusion-bonded to the first optical fiber and receiving the laser beam having been input from the first optical fiber, a first reflection surface for reflecting the laser beam having been input from the first input surface and for transmitting a stimulated Raman scattered beam, and a first output surface for outputting the laser beam having been reflected on the first reflection surface.
Abstract: A core body includes an outer peripheral iron core and at least three iron cores inside the outer peripheral iron core and extending in the radial direction thereof. At least one of the outer peripheral iron core and the at least three iron cores is formed of a hoop material wound body formed by winding a hoop material.
Abstract: A controller has a state observation unit to acquire a present state of a robot as a state variable, a label data acquisition unit to acquire, as a label, a detected value of a force sensor attached to an arm and to detect necessary data for control of a pressing force, and a learning unit to generate a learning model indicative of the correlation between the state variable acquired in a no-load state and the label acquired under the state variable acquired in the no-load state and to estimate the detected value of the force sensor. The controller controls the pressing force by using the detected value of the force sensor acquired in the present state of the robot acquired in a loaded state and the detected value of the force sensor estimated by the learning unit based on the present state of the robot acquired in the loaded state.
Abstract: A laser processing device having a function for reducing intensity of a reflected laser beam, without stopping laser oscillation, in order to avoid a malfunction due to the reflected beam. A controller for controlling a laser oscillator has: a laser processing commanding part configured to output a laser processing command; a memory configured to store monitored intensity of the reflected beam and a laser output condition; a pre-processing commanding part configured to command a pre-processing prior to the laser processing command; a comparing part configured to compare the stored intensity of the reflected beam to a first judgment value and/or a second judgment value lower than the first judgment value; an output condition changing part configured to set or change the laser output command of the pre-processing command based on a comparison result; and a pre-processing terminating part configured to terminate the pre-processing based on a predetermined condition.
April 3, 2017
Date of Patent:
August 4, 2020
Akinori Ohyama, Tatsuya Mochizuki, Takashi Izumi, Atsushi Mori
Abstract: To provide an action information learning device, robot control system and action information learning method for facilitating the performing of cooperative work by an operator with a robot. An action information learning device includes: a state information acquisition unit that acquires a state of a robot; an action information output unit for outputting an action, which is adjustment information for the state; a reward calculation section for acquiring determination information, which is information about a handover time related to handover of a workpiece, and calculating a value of reward in reinforcement learning based on the determination information thus acquired; and a value function update section for updating a value function by way of performing the reinforcement learning based on the value of reward calculated by the reward calculation section, the state and the action.
Abstract: A numerical controller instructs a robot or an automated machine (external device), in relation to a main task for which a retrying operation thereof has occurred, to execute, instead of or in addition to the main task, a sorting task to distinguish an exception molded product, which was produced from a time when a determination result became successful, and until a physical quantity to be measured lies within a management range, or until a stand-by time elapses, from a normal molded product produced before the occurrence of the retrying operation.
April 5, 2018
Date of Patent:
August 4, 2020
Hajime Oono, Naoaki Seki, Ryousuke Mori
Abstract: A workpiece conveyance pallet which can reduce the manufacturing cost and improve the reliability. The workpiece conveyance pallet includes a rest surface on which a workpiece is mounted, and a clamping mechanism which clamps the workpiece, the clamping mechanism including an openable and closable, first claw and second claw, a biasing section which biases the first claw and the second claw in the closing direction, and a movement restriction section which detachably engages with the first claw and the second claw when the first claw and the second claw are opened.
Abstract: A control device includes a speed setting unit configured to set a relative movement speed of a wire electrode with respect to a workpiece depending on the average of gap voltage per unit time, i.e., average gap voltage, and set the relative movement speed so as to move the wire electrode backward when the average gap voltage is less than a threshold, and a map compensation unit configured to change the threshold from a first threshold that is set when the amount of change in the average gap voltage is lower than a predetermined variation, to a second threshold that is greater than the first threshold, when the average gap voltage has changed in a decreasing direction and the amount of change in the average gap voltage becomes equal to or greater than the predetermined variation.
Abstract: A numerical controller that controls a machine based on a program includes a manual program execution instruction unit that gives instructions for advancing and reversing execution of the program in a manual manner, a program manual execution unit that sequentially executes the program, and a block information notification unit that identifies a block in the program the execution of which is about to be started, based on execution status of the program reported from the program manual execution unit, and that makes notification in accordance with an attribute of the identified block.
Abstract: A hand for connector connection that grips a component including a main body component, a flexible board extending from the main body component, and a first connector disposed on the flexible board and connects the first connector to a second connector of a mount substrate includes a first gripping section that grips the main body component and a second gripping section that grips the first connector. The second gripping section includes a close contact surface brought into close contact with a back surface of the first connector and a suction pad that starts suction of the back surface of the first connector in a position further projecting than the close contact surface and is contracted to a position where the suction pad is disposed flush with the close contact surface in a sucked state.
Abstract: A robot including, a motor attached to one end surface of a casing of an arm, a reducer output shaft attached to the other end surface of the casing by bolts, a hole provided in the casing, and through which the output shaft of the motor is inserted, a first sealing member sealing a space between the hole and the output shaft, a second sealing member sealing a space between the other end surface and the end surface of the reducer output shaft, a recessed portion provided on a side of the other end surface of the casing and recessed in a direction along the central axial line of the reducer output shaft; and a lubricant agent supply hole provided in the casing and extending in a substantially radial direction or in a radial direction of the reducer output shaft, the lubricant agent supply hole communicating to the recessed portion.
Abstract: An electric motor includes a front housing positioned on a load side and including an annular groove in an inner surface of the front housing, a winding wound around a stator core and including a coil end projecting forward from the stator core and disposed in the annular groove, and a heat conductive resin filled in the annular groove and configured to be in contact with both the coil end and the front housing.
Abstract: A linear-object management structure for a robot, where a post-attached linear object is guided via the same path as a basic cable from inside a base and fixed at the position of a first fixing member, is subsequently extended forward beyond the basic cable, through a path closer to a first axis than the basic cable is, is curved in a direction along a first arm, is fixed to a side surface of the first arm, at the position of a second fixing member, such that a certain length margin required for the operation of the first arm is provided between the position of the first fixing member and the position of the second fixing member, and is guided to an upper-side movable portion along the first arm.
Abstract: A precision machine tool includes: a tool support for supporting a tool; a tool table serving as a moving mechanism capable of moving the tool support; and one or multiple imaging devices fixed to the tool support, the imaging devices each having an imaging unit configured to capture the image of a machining point on a workpiece machined by the tool.
Abstract: A reactor includes an outer peripheral iron core composed of a plurality of outer peripheral iron core portions and at least three iron core coils arranged inside the outer peripheral iron core. The at least three iron core coils are composed of iron cores coupled to the plurality of outer peripheral iron core portions and coils wound onto the iron cores. Gaps, which can be magnetically coupled, are formed between adjacent iron cores. The reactor further includes connection parts for connecting the plurality of outer peripheral iron core portions to each other.
April 17, 2020
July 30, 2020
Kenichi Tsukada, Masatomo Shirouzu, Tomokazu Yoshida
Abstract: A mounting bracket includes: a first flange mounted on a wrist leading end surface of a robot allowing a linear object to penetrate therethrough along a rotation center axis of a wrist leading end, the first flange having a first through-hole through which the linear object passes; a second flange that is spaced apart from the first flange in a direction of the rotation center axis and on which an end effector is mounted; and a cylindrical coupling part coupling an outer edge of the first flange and an outer edge of the second flange, the coupling part is provided with opening parts through which the linear object penetrated through the first through-hole passes, and at least at positions of the opening parts, the outer edge of the second flange is disposed in a position closer to the rotation center axis than the outer edge of the first flange.
Abstract: A robot having joint shaft that includes: a first-link member and a second-link that are coupled about a rotation axis; a reducer that has an input-shaft fixed to the first-link and an output-shaft fixed to the second-link; a motor that generates a driving force to be input to the reducer; and an input-side encoder and an output-side encoder. The motor is away from the rotation axis, and a power transmission mechanism is provided between the motor and the reducer. The reducer includes a hollow-part and a tubular-member. The tubular-member passes through the hollow-part, one end of which is fixed to the input-shaft or the output-shaft, and the other end of which protrudes from the input-shaft or the output-shaft. The output-side encoder includes a scale and a sensor. The scale is fixed to the tubular-member; and the sensor is fixed to the input-shaft or the output-shaft.
Abstract: A robot including at least one joint shaft that includes: a first link member and a second link member that are coupled about a rotation axis; a reducer that has an input shaft part fixed to the first link member and an output shaft part fixed to the second link member; a motor that generates a driving force to be input to the reducer; and an input-side encoder that detects a rotation angle of a rotation shaft of the motor; and an output-side encoder that detects a rotation angle between the first link member and the second link member. The output-side encoder includes a scale member that has a pattern and a sensor that detects the pattern on the scale member. The scale member is fixed to an attachment surface, and the sensor is attached to a fixing member fixed to the first link member.