Matsushita Electric Industrial Co., Ltd.

Yoshinori Nishida

Toshihiro Yoshioka

Koji Hamamoto

Hisashi Kinoshita

Tetsu Innami

Takashi Nakatsuka

Naoki Kawai

Masahiro Ohto

Junzo Tanimoto

Akio Nakasuji

Masaharu Takagi

An acceleration generated when a tool tip of a robot moves straightly or turns a teaching point inward, is suppressed under a predetermined maximum acceleration so that the tool tip moves smoothly. From teaching point data including a moving instruction to specify a trajectory shape on the basis of a teaching point giving a reference based on which a tip portion of the robot moves, a moving speed instruction to specify a moving speed of the tip portion on the trajectory, and an allowable path error to specify a maximum value of an error between the teaching point and the trajectory, a realizable moving speed when the tip portion of the robot moves on the straight line trajectory is obtained, a deceleration rate with respect to the moving speed recorded in the teaching point data is obtained, a realizable moving speed when the tip portion of the robot passes the inside of the teaching point is obtained, a deceleration rate with respect to the moving speed recorded in the teaching point data is calculated, and those values are stored in the teaching point data. When the robot is operated, in accordance with the straight portion deceleration rate and the inward turning portion deceleration rate stored in the teaching point data, the moving speeds of the robot at the straight portion and the inward turning portion are reset.

Apparatus for generating trajectory for industrial robot

A communication system for a wireless bar code reader includes a wireless bar code reader transmitter for reading bar code information and transmitting a radio signal, and a receiver for receiving the radio signal from the wireless bar code reader transmitter and transmitting reception data to a host computer, wherein the receiver includes a reception indication section for indicating that the reception data is received. Accordingly, it is possible to notify an operator that the data has been transmitted normally and further to urge the operator to retransmit the data when the data has not been transmitted normally.

Communication system for wireless bar code reader

An arc welding machine comprises an output control circuit which produces an arc output in accordance with output control signal, an output detection circuit which measures the state of arc output and produces a feedback signal indicative of the output arc state, and a fuzzy inference control circuit which introduces the feedback signal, produces a welding current waveform and welding voltage waveform required to produce the optimal arc state based on the fuzzy inference, and delivers the resulting waveforms to the output control circuit as the output control signal.

Arc welding machine

A method and apparatus for follow-up controlling the weaving movement of a weaving device in consumable electrode type arc welding, in which welding currents at both ends of the left and right side of the weaving motion of the torch with respect to a welding line are detected and compared. If the detected welding currents are not equal, the weaving device mounting the torch is shifted either to the left or right with respect to the welding line depending upon which of the welding currents is larger until the detected welding currents become equal to each other.

Follow-up control apparatus for controlling the movement of a welding

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Toyonaka, Japan

Yoshinori Nishida