343 results about "Articulated robot" patented technology

A robot includes a first horizontal arm coupled to a base, a second horizontal arm coupled to the base via the first horizontal arm, first and second motors adapted to rotate the respective arms, and first and second encoders adapted to calculate rotational angles and rotational velocities of the respective motors. A first motor control section subtracts first and second angular velocities based on the first and second encoders from a sensor angular velocity detected by an angular sensor, and controls the first motor so that a velocity measurement value obtained by adding a vibration velocity based on a vibration angular velocity as the subtraction result and a first rotational velocity becomes equal to a velocity command value.

An articulated robot includes a wrist carrying a flange for attachment of an apparatus to be carried by the robot. The wrist comprises a first support mounted on a robot component that is rotatable about a first axis, a second support rotatably mounted on the first support about a second axis inclined with respect to the first axis, and a third support rotatably mounted on the second support about a third axis, inclined with respect to the second axis. A first motor carried by the first support drives the rotation of the second support, and a second motor carried by the second support drives the rotation of the third support, which ends with the flange for attachment of the apparatus to be carried by the robot.

A horizontal articulated robot has a plurality of horizontal arms coupled by joint shafts, and a working shaft disposed at the extreme end of an extreme end arm among the horizontal arms has mounting portions of an end effector formed to both the upper and lower ends thereof. With this arrangement, there can be provided a horizontal articulated robot that can cope with various work transport forms and various types of works by one type of a robot by selectively using the upper and lower sides of a working shaft.

An articulated robot capable of reducing dead space while maintaining a wide operating area and simplifying a power transmission system necessary for moving each joint. A plurality of joint arms A1 to A7 are connected via first rotating shafts 15, 15A, and 15B as horizontal rotating shafts and via second rotating shafts 32, 32A, and 32B as inclined rotating shafts alternately. A motor M for driving the rotating shaft and a speed-reducing mechanism are provided for each rotating shaft.

The invention provides a four-shaft mechanical arm for grabbing sheet metal parts, and belongs to the technical field of four-shaft mechanical arms. The four-shaft mechanical arm for grabbing the sheet metal parts is used for solving the problems that according to a traditional four-freedom-degree articulated robot, a linear movement portion which ascends and descends perpendicularly is arranged at the tail end of a robot body, the mechanism size in the perpendicular direction is large, and the robot is not applicable to operation in a narrow and small space. The four-shaft mechanical arm for grabbing the sheet metal parts is formed by a first shaft unit, a second shaft unit, a third shaft unit, a fourth shaft unit and an electronic control cabinet in a combined mode, wherein the first shaft unit is used for implementing ascent and descent movement of a mechanical arm body, the second shaft unit is used for implementing rotation movement of a large arm, the third shaft unit is used for implementing rotation movement of a small arm, the fourth shaft unit is used for implementing rotation movement of a sucker support, the four shaft units can be used in cooperation, the working range of each shaft is wide, and the four-shaft mechanical arm is quite applicable to operation in the narrow and small space. According to the four-shaft mechanical arm for grabbing the sheet metal parts, the stroke of a first shaft ranges from 0mm to 400mm, the stroke of a second shaft is within the range of + / -180 degrees, the stroke of a third shaft is within the range of + / -135 degrees, the stroke of a fourth shaft is within the range of + / -110 degrees, and repeated positioning accuracy is within the range of + / -0.5mm.

A method and system design and manufacture of the monogrammed faceted and stone adorned eyeglass lenses via a computer program allowing a design, intricate facet cuts and stone placement on a computer lens model. Software may utilize a touch probe or laser scanner to gather point data from a previously designed lens, converting the data to a computer model. The data is then used to send signals to an articulated robotic arm holding a lens shape. The robotic arm receives the commands from the computer, moving and rotating the lens shape against an abrasive wheel, rotating cutter blade or rotating drill thereby duplicating the facet cuts, slots notches or depressions or other designs contained in the computer lens model. Varying pressure is applied by the articulated arm and various degrees of abrasiveness of the abrasive wheel.

The invention provides a novel plane articulated robot structure which comprises a base, a lifting seat, a first mechanical arm, a second mechanical arm and an operation spindle. The base functions in supporting and reducing vibration; the lifting seat vertically moves along a Z-axis direction under the limiting action of a lead screw and a polished shaft; the first mechanical arm is rotatably mounted on the lifting seat by taking an X axis parallel to a Z axis as a rotating center; the second mechanical arm is rotatably mounted on the first mechanical arm by taking a Y axis parallel to the X axis as a rotating center; the operation spindle is rotatably mounted on the second mechanical arm by taking an R axis parallel to the Y axis as a rotating center. The vertically moving Z axis of a plane articulated robot with four degrees of freedom moves to the base of the robot, so that the inertia of the mechanical arms of the industrial robot can be decreased by the design, stress of the mechanical arms serving as cantilever beams is improved, the running speed and control stability of the robot are effectively improved, and the working space of the industrial robot is enlarged.

An ultrasonic non-destructive evaluation (NDE) system operable to inspect target materials is provided. This ultrasonic NDE system includes an articulated robot, an ultrasound inspection head, a processing module, and a control module. The ultrasound inspection head couples to or mounts on the articulated robot. The ultrasound inspection head is operable to deliver a generation laser beam, a detection laser beam, and collect phase modulated light scattered by the target materials. The processing module processes the phase modulated light and produces information about the internal structure of the target materials. The control module directs the articulated robot to position the ultrasound inspection head according to a pre-determined scan plan.

A method of detection of a welding workpiece position using a movable electrode, in a spot welding system, a welding workpiece and a spot welding gun are moved relatively by a multi-articulated robot, such that the movable electrode is closed to the welding workpiece or the movable electrode is separated from the welding workpiece, simultaneously, a current or torque of a servo motor is monitored, and a surface position of the welding workpiece is detected from the position of the movable electrode and the position of the multiarticulated robot when the trend of the current or torque changes.The spot welding system comprises: the spot welding gun having the movalbe electrode driven by the servo motor and a counter electrode arranged facing the movable electrode, and the multiarticulated robot for holding one of the welding workpiece and the spot welding gun. Thereby, the precision of detection of the surface position of the welding workpiece by the movable electrode in the spot welding system can now be improved without lengthening the time required for detection of the surface position of the welding workpiece.

The invention discloses a novel four-degree-of-freedom articulated robot structure. The novel four-degree-of-freedom articulated robot structure comprises a base, a lifting seat, a first mechanical arm, a Y-axis cover, a second mechanical arm, and an operation main shaft, wherein the lifting seat vertically moves in the direction of a Z-axis under the limiting actions of a lead screw, a lead screw, and a guide rail pair, the first mechanical arm can rotate around an X-axis parallel to the Z-axis to be installed on the lifting seat, the Y-axis cover is installed on the first mechanical arm, bears a first Y-axis speed reduction device shaft and a second Y-axis speed reduction device shaft, and is provided with through holes for a Y-axis servo motor shaft, the first Y-axis speed reduction device shaft and the second Y-axis speed reduction device shaft to penetrate, the second mechanical arm can rotate around the Y-axis parallel to the X-axis to be installed on the first mechanical arm, and the operation main shaft can rotate around an R-axis parallel to the Y-axis to be installed on the second mechanical arm. The novel four-degree-of-freedom articulated robot structure is simple in structure, low in cost, large in operation space, and high in operation accuracy.

A sealing device provided to a joint section of a robot. The sealing device includes overlapped seal portions having a multi-stage configuration, provided for a driving mechanism incorporated into the joint section. The overlapped seal portions include a first seal portion including a first contact seal element sealing a first inter-member gap defined adjacent to a lubricant retaining section provided in the driving mechanism; and a second seal portion arranged outside the first seal portion and including a second contact seal element sealing a second inter-member gap defined in a circumferential wall of the joint section, the circumferential wall defining an accommodation space for accommodating the driving mechanism.