Abstract: An arm-shaped structure includes a pipe-shaped main body and a metallic attachment interface joined to at least one end of the main body and securable to another component. At least a portion of the main body and the attachment interface is formed by casting. The main body and the attachment interface are joined to each other in a state where relative movement along a longitudinal axis of the main body and around the longitudinal axis is prevented in accordance with engagement between a recess provided in one of the main body and the attachment interface and a protrusion provided in the other one of the main body and the attachment interface.

Abstract: An arm-shaped structure includes a pipe-shaped main body and an attachment interface joined to at least one end of the main body and securable to another component. At least a portion of the main body and the attachment interface is formed by resin containing a continuous reinforcement fiber. The main body and the attachment interface are joined to each other in a state where relative movement along a longitudinal axis of the main body and around the longitudinal axis is prevented in accordance with engagement between a recess provided in one of the main body and the attachment interface and a protrusion provided in the other one of the main body and the attachment interface.

Abstract: A robot arm includes a long cylindrical arm body and mounting interface portions fixed at both sides of the arm body and that are used to mount the robot arm to another member. At least sections of outer surfaces of the arm body and the mounting interface portions are formed of a resin. A first part that has one of the mounting interface portions and a section of the arm body and a second part that has the other one of the mounting interface portions and a section of the arm body are joined to each other.

Abstract: A light-weight gear including: an annular tooth portion made of metal; a shaft extending along a central axis of the tooth portion and made of metal; and a coupling element configured to couple the shaft to the tooth portion and made of a resin, in which a joining part between the shaft and the coupling element and a joining part between the tooth portion and the coupling element are provided with irregularities configured to be engaged with one another in a circumferential direction, and corners of the irregularities are rounded to release a stress. Also, provided is a manufacturing method of a light-weight gear including: disposing the tooth portion and the shaft in a mold and injecting a molten resin into a cavity of the mold, thereby simultaneously performing injection molding of the coupling element and joining the coupling element to the tooth portion and the shaft.

Abstract: A robot includes: a first member; a second member that is rotationally driven around a first axis with respect to the first member; a third member that is rotationally driven around a second axis with respect to the second member, the second axis being located at an interval from the first axis; a single axis torque detection unit that detects only at least one of torque around the first axis and torque around the second axis; and a force sensor that is provided between the first member and a surface to be installed, or in the first member, the second member or the third member, and is capable of detecting force in a direction intersecting with both the first axis and the second axis.

Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of workpieces placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each workpiece, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the workpiece by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the workpiece, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.

Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of objects placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each object, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the object by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the object, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.

Abstract: A collaborative robot operation apparatus includes an operation unit that is operated by an operator in direct teaching of a robot including a cylindrical outer surface at least in a part, a communication unit that communicates operation information to the operation unit, to a control apparatus of the robot, and an attachment portion that detachably attaches the operation unit on the outer surface of the robot. The operation unit includes a rotation stopping portion between the outer surface of the robot and the operation unit.

Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of objects placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each object, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the object by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the object, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.

Abstract: Provided is a collaborative-robot risk assessment guidance device (1) including: an input device (2) that receives inputs from a user; a storage device (3) that stores information; a display device (4) that displays the information; and at least one processing device (5), wherein the processing device (5) prompts the user to input, by means of the input device (2), basic information including conditions for collaborating with people, prompts the user to select, by means of the input device (2), at least one candidate information item for hazard sources stored in the storage device (3) in association with the input basic information, performs a risk assessment on a basis of risk specifics information stored in the storage device (3) in association with the selected candidate information item for the hazard sources, determines whether a result of the risk assessment is at or below an acceptable risk, and displays, on the display device (4), countermeasure proposals for separating people and a collaborative robo

Abstract: An arm-shaped structure body including an elongated first portion formed of resin, the first portion having a groove-shaped recessed section that opens in one direction intersecting a longitudinal direction thereof, and a second portion that is disposed so as to cover an opening of the recessed section and that is joined to the first portion in a state in which an elongated hollow section extending in the longitudinal direction is formed between the first portion and the second portion, where the second portion includes a pair of mounting sections that are disposed at both ends in the longitudinal direction, the pair of mounting sections being fixed to respective other parts constituting a robot.

Abstract: A robot including a plurality of joints each configured to rotate about an axis line; a torque sensor S1 configured to detect torque about the axis line of a target joint as one of the plurality of joints; angle information detection units configured to detect information related to a rotation angle of each of the joints about the axis line; a torque change amount estimation unit configured to estimate a change amount of the torque detected by the torque sensor due to a load other than the torque about the axis line of the target joint based on the detected information; and a correction unit configured to correct the torque detected by the torque sensor by using the estimated change amount.

Abstract: A robot casing includes, in a hollow resin body portion, two attachment openings and one work opening that communicate between an inside and an outside of the body portion. The two attachment openings are respectively provided in both end portions of the body portion; a metal member constituting an attachment surface is embedded in a resin constituting the body portion at a periphery of the attachment opening; the metal member is provided with attachment holes that allow attachment screws, which are used for attachment to the attachment surface, to penetrate therethrough or to be fastened thereinto, and is also embedded in the resin in a state in which the attachment surface is exposed; and components can be respectively attached to the two attachment openings by utilizing the work opening.

Abstract: The present invention provides an unmanned transfer robot system including: an unmanned transfer vehicle capable of traveling on a road surface between a plurality of work stations; a robot that is mounted on the unmanned transfer vehicle; a sensor that is mounted on the robot and that detects a condition of the road surface; and a control unit that controls the robot and the unmanned transfer vehicle. Within an operation range of the robot, the sensor is disposed at a position where the sensor can detect a condition of the road surface in the periphery of the unmanned transfer vehicle, and the control unit controls the unmanned transfer vehicle on the basis of the condition of the road surface acquired by the sensor.

Abstract: A light-weight gear including: an annular tooth portion made of metal; a shaft extending along a central axis of the tooth portion and made of metal; and a coupling element configured to couple the shaft to the tooth portion and made of a resin, in which a joining part between the shaft and the coupling element and a joining part between the tooth portion and the coupling element are provided with irregularities configured to be engaged with one another in a circumferential direction, and corners of the irregularities are rounded to release a stress. Also, provided is a manufacturing method of a light-weight gear including: disposing the tooth portion and the shaft in a mold and injecting a molten resin into a cavity of the mold, thereby simultaneously performing injection molding of the coupling element and joining the coupling element to the tooth portion and the shaft.

Abstract: An industrial robot system includes: a robot that includes a torque sensor on at least one rotary shaft; and a controller that controls the robot. The controller includes a moment output unit that outputs a value of moment from a posture of the robot or the posture and a motion of the robot, a program storage unit that stores a motion program, a drive control unit that causes each of component parts of the robot to perform a rotating motion around the rotary shaft in accordance with the motion program, and an output calibration unit that associates a torque detection value detected by the torque sensor with the value of moment output from the moment output unit in the rotating motion of each of the component parts around the rotary shaft performed by the drive control unit.

Abstract: A robot control device includes: a creep-information storage unit that stores an amount of bending in correspondence with a cumulative time, the bending occurring in a robot due to creep deformation; a mastering-data storage unit that stores mastering data of the robot; a timer that measures the cumulative time; and a correction unit that corrects the mastering data stored in the mastering-data storage unit based on the amount of bending stored in the creep-information storage unit in correspondence with the cumulative time measured by the timer.

Abstract: A rotary shaft structure includes an actuator having an output shaft for rotationally driving a driven body, a force sensor which is arranged between the output shaft and the driven body and which detects a force exerted between the output shaft and the driven body, and a flexible deformation body which is in contact with the output shaft and the driven body, wherein the entirety of the force sensor is sealed by the output shaft, the driven body, and the flexible deformation body.

Abstract: A light-weight gear including: an annular tooth portion made of metal; a shaft extending along a central axis of the tooth portion and made of metal; and a coupling element configured to couple the shaft to the tooth portion and made of a resin, in which a joining part between the shaft and the coupling element and a joining part between the tooth portion and the coupling element are provided with irregularities configured to be engaged with one another in a circumferential direction, and corners of the irregularities are rounded to release a stress. Also, provided is a manufacturing method of a light-weight gear including: disposing the tooth portion and the shaft in a mold and injecting a molten resin into a cavity of the mold, thereby simultaneously performing injection molding of the coupling element and joining the coupling element to the tooth portion and the shaft.

Abstract: Provided is a robot system which includes: a robot; a controller controlling the robot and causing the robot to operate in a plurality of operation modes; and a display device attached on the robot and caused by the controller to operate in patterns in accordance with the operation modes, the patterns being different from one another. The display device includes: a sheet-like base part being deformable in a shape in accordance with an outer surface of the robot and having flexibility; one or more display parts fixed on the base part; and a fixture maintaining the base part in a state in which the base part is attached on the outer surface of the robot.