Abstract: The robot includes a first arm member rotatable about a first axis line which extends in an up-and-down direction with respect to a base member, a second arm member supported by the first arm member so as to be swingable about a second axis line which extends in a horizontal direction, and a third arm member supported by a distal end side of the second arm member so as to be swingable about a third axis line which extends in a horizontal direction, and the first arm member is provided with a first attaching surface which is a surface substantially perpendicular to the second axis line, and to which the second arm member can be attached, and a second attaching surface which faces in a direction opposite from the first attaching surface, and to which the second arm member can be attached.

Abstract: A maintenance apparatus of a robot includes a pair of parallel rails removably installed on opposite sides in a predetermined direction to a robot, and a number of sliders, at least one of the number of sliders is attached to each of the pair of rails, and each of the sliders is configured to support an arm part or a reducer of the robot, and move the supported arm part or reducer along the rails.

Abstract: A maintenance apparatus of a robot includes a pair of parallel rails removably installed on opposite sides in a predetermined direction to a robot, and a number of sliders, at least one of the number of sliders is attached to each of the pair of rails, and each of the sliders is configured to support an arm part or a reducer of the robot, and move the supported arm part or reducer along the rails.

Abstract: The robot includes a first arm member rotatable about a first axis line which extends in an up-and-down direction with respect to a base member, a second arm member supported by the first arm member so as to be swingable about a second axis line which extends in a horizontal direction, and a third arm member supported by a distal end side of the second arm member so as to be swingable about a third axis line which extends in a horizontal direction, and the first arm member is provided with a first attaching surface which is a surface substantially perpendicular to the second axis line, and to which the second arm member can be attached, and a second attaching surface which faces in a direction opposite from the first attaching surface, and to which the second arm member can be attached.

Abstract: A wireless communication device includes: a transmitting circuit that is connected to an antenna and includes a power amplifier that amplifies an input signal; a receiving circuit that is connected to the antenna and includes a switch that switches as to whether or not a signal is received; and a processor that executes a process including: acquiring timing information that indicates timing of a guard period when no signal is transmitted or received by the antenna; turning on the power amplifier and turning on the switch in the guard period based on the acquired timing information to input a noise signal of the transmitting circuit that is amplified by the power amplifier to the receiving circuit; measuring electrical power of a signal that is output from the receiving circuit in the guard period; and determining abnormality of the receiving circuit based on the measured electrical power.