Fanuc Corporation

Takeshi Okada

Ryo Nihei

Yasuo Naito

Hiroshi Uchida

Yoshihiro Tanno

Tamotsu Sakai

Hidenori Kurebayashi

Munehiro Jinushi

Tsutomu Miyagawa

A robot provided with a robot mechanism including a first member and a second member, the first member and the second member being movable relative to each other; and a laying structure for laying an umbilical member in the robot mechanism. The robot includes the umbilical member laid to extend between the first member and the second member; a movable clamp member movably provided in the first member to clamp the umbilical member; and a connecting member for connecting the movable clamp member to the second member in a correlatively movable manner. The connecting member transmits a force generating due to a movement of the second member relative to the first member to the movable clamp member, so as to move the clamp member in the first member.

Distribution equipment for robot

A plurality of clamp devices for clamping a cable or a pipe connected to an end effector of a robot are mounted to a robot wrist portion. A first clamp device has a base and a clamp portion configured to slide linearly with respect to the base and be also capable of turning about an axis perpendicular to the slide direction. A second clamp device has a base and a clamp portion configured to be capable of turning about an axis perpendicular to the installation surface of the base. A third clamp device has a revolving unit fitted to the circumference of the arm and configured to be capable of pivotal motion in the circumferential direction of the arm and a clamp portion provided on the circumference of the revolving unit to be capable of turning about an axis in the radial direction of the revolving unit. The clamp portions of these clamp devices are adapted to clamp the cable or the pipe extending to the end effector.

Guide device for wiring member and/or piping member and robot with guide device

Spot welding system

Industrial robot

The invention is directed to a method of controlling acceleration and deceleration time constants for a robot wherein the acceleration and deceleration time constants of a servo motor are each set at an optimum value based on the amount of movement, load, etc., thereby achieving a reduction in the operation time of the robot. The control method controls the operation of the robot while setting the acceleration and deceleration time constants at optimum values for each block instruction, and comprises the following five stages: the first stage comprising determining from the distance to the target position whether or not the speed will reach the taught speed (S1), setting the taught speed as velocity V if it is determined that the speed will reach the taught speed (S2), otherwise obtaining an ultimate velocity (S3) and setting the obtained ultimate velocity as velocity V (S4); the second stage comprising obtaining an output torque corresponding to the velocity V from a velocity-torque curve (S5); the third stage comprising obtaining an acceleration torque and a deceleration torque by subtracting a static load torque from the output torque (S6); the fourth stage comprising obtaining the magnitude of acceleration for acceleration and for deceleration (S7); and the fifth stage comprising obtaining an acceleration time constant and a deceleration time constant from the magnitudes of acceleration and the velocity V (S8), and then determining the largest acceleration time constant and largest deceleration time constant in absolute value terms or determining the optimum acceleration time constant and deceleration time constant for each individual axis (S9).

Method of controlling acceleration/deceleration time constants for robot

Balancer device for a robot arm

Growing community of inventors

Yamanashi, Japan

Takeshi Okada