摘要:
The invention provides a method and a device capable of precisely and simply extracting data used for abnormality determination and life diagnosis of a drive system of an industrial robot while executing a normal action program. Regarding a torque signal Tf outputted from a motor driver for controlling a motor in accordance with a position command Xs generated based on an operation program of a robot to the motor, a highpass filter is applied after gravity compensating torque and interference torque due to other shafts of the robot are removed from the torque signal Tf, and an abnormality in a reducer is determined based on an extracted oscillating component of the reducer.
摘要:
The invention provides a method and a device capable of precisely and simply extracting data used for abnormality determination and life diagnosis of a drive system of an industrial robot while executing a normal action program. Regarding a torque signal Tf outputted from a motor driver for controlling a motor in accordance with a position command Xs generated based on an operation program of a robot to the motor, a highpass filter is applied after gravity compensating torque and interference torque due to other shafts of the robot are removed from the torque signal Tf, and an abnormality in a reducer is determined based on an extracted oscillating component of the reducer.
摘要:
An electro-pneumatic air pressure regulator includes a primary pressure introduction port, a secondary pressure output port, a pilot pressure chamber, a main valve for opening and closing a communicating conduit, a floating piston which actuates the main valve, a nozzle conduit via which the pilot pressure chamber is communicatively connected to the atmosphere, a flapper which includes a leaf spring facing an open end of the nozzle conduit, and an electromagnetic drive system which deforms the leaf spring to vary a position of the flapper relative to the open end of the nozzle conduit in accordance with the magnitude of an analogue input signal. The flapper includes a conical projection which projects toward the open end of the nozzle conduit. A conical recess corresponding to the conical projection is formed on an end face of the nozzle conduit around the open end thereof.
摘要:
An industrial robot includes a hollow chamber rotatably supported by a base, an arm rotatably supported by the hollow chamber, and drive devices provided in the hollow chamber and configured to drive the arm.
摘要:
It is an object of the present invention to provide a load control system capable of controlling pressure generated by a pneumatic device with a high degree of accuracy and further capable of reacting to variations of the pressure without delay.A pressure regulating screw (61), which is adopted to set a secondary pressure of compressed air output from a pressure regulator body (60) for supplying compressed air at the secondary pressure to a pneumatic cylinder device (10), is coupled to a motor shaft (42) of a rotational driving device (41) via bowl-shaped members (51) and (52) having flexibility in a direction in which the bowl-shaped members move toward and away from each other, and a drive control circuit (30) which receives a pressure signal output from a pressure sensor (14a) of the pneumatic cylinder device (10) rotates the pressure regulating screw (61) via the motor shaft (42) of the rotational driving device (41) and the flexible bowl-shaped members (51) and (52) so that the pressure signal holds a set value.
摘要:
A parallel link robot includes a base, three servo motors disposed in the base, three arms, and a robot controller. Each of the three arms includes a first link and a second link that respectively include a first joint and a second joint. Each of the three arms is driven by a corresponding one of the three servo motors. The robot controller determines whether or not any of the first and second joints of the arms is dislocated on the basis of the torques of the three servo motors.
摘要:
A robot system includes a robot arm driven by a motor, a collision detector that detects a collision between the robot arm and an obstacle, which is provided on the robot arm, and a stopping method selector that controls the robot arm by selecting any one of all stopping methods on the basis of the information obtained by the collision detector, thereby selecting a stopping method in accordance with the status of the collision.
摘要:
An industrial robot includes a hollow chamber rotatably supported by a base, an arm rotatably supported by the hollow chamber, and drive devices provided in the hollow chamber and configured to drive the arm.
摘要:
A hose clamp made from a unitary, spring steel band formed into a generally cylindrical configuration. The clamp has a support piece extending radially outwardly from one end of the spring steel band, a slot opening formed in the one end adjacent the support piece and extending a predetermined length in a circumferential direction of the spring steel band, a projecting piece formed at the other end of the spring steel band and fitting in circumferential relationship in the slot opening, and an upstanding tab formed at the distal end of the projecting piece and extending radially outwardly of the spring steel band. With this arrangement, when the spring steel band is deflected to its expanded position, the tab is retained on the support piece so as to temporarily lock the spring steel band in its open or expanded position.