Fanuc Corporation

Tokyo Institute of Technology

Tube Forming Co., Ltd.

Kenichiro Abe

Masahiro Morioka

Michio Kinoshita

Kou Isozaki

Toshiro Watanabe

Yoshihiro Tanno

Kazutaka Nakayama

Akihiro Terada

Hikaru Yamashiro

Kuniyasu Matsumoto

Masaaki Uematsu

Hirokazu Kume

Akihiro Oikawa

Kentarou Ootani

Daisuke Shiramatsu

Yunfeng Wu

Kouhei Hanatani

Yukio Takeda

Masashi Ooe

Masumi Ohno

Soichi Arita

Hiroshi Nakagawa

Kunihiko Murakami

Daisuke Matsuura

Mitsuhiro Yasumura

Yuuki Kondou

Keita Suyama

Toshinori Ohashi

Hideo Matsui

Masahiro Naitou

Takayuki Wakabayashi

Yusuke Sugahara

Ryouta Shimizu

Yoshiaki Yokoyama

Keiichi Tsuchiya

Yasutoyo Ooki

Masaaki Uematu

Ryo Hinei

A method for producing an arm structure in which the arm structure is produced by: forming an arm precursor member having an external shape of the arm structure by, in a state in which a die is closed with a metal pipe member being disposed in a cavity thereof, pressurizing the pipe member with liquid supplied to an inside thereof to cause an external surface of the thus expanded pipe member to be pressed against an inner surface of the cavity; and forming a flange portion to be attached to a driven body by machining at least an end of the formed arm precursor member.

Arm-like-structure producing method and arm-like structure

Industrial robot

A device and method for judging the presence or absence of an abnormal clearance between paring elements of a passive joint of a robot. The device has sections configured to: calculate a score for each motion path, wherein the score is increased when the paring elements of an objective pair collide with each other and is decreased when the paring elements of the other pair collide with each other; generate a robot motion for moving the robot along the motion path having the score not lower than a predetermined threshold; measure a drive torque or a current value of a motor when the robot is moved according to the generated robot motion; calculate an index value based on a magnitude of variation of the measured drive torque or current value; and judge as to whether the abnormal clearance exists in the objective pair, based on the index value.

Device and method for detecting abnormality of joint of robot

A rotation axis module includes: an actuator which relatively rotates a fixed member and a movable member; a umbilical member which penetrates through the interior of the actuator to extend; a first fixing portion which fixes the umbilical member at a rotation axis of the fixed member or at a position corresponding to the vicinity thereof; a second fixing portion which fixes the umbilical member at an output axis of the movable member or in the vicinity thereof; a first relay portion which is positioned at a side of the fixed member, one end of the umbilical member being connected to the first relay portion; and a second relay portion which is positioned at a side of the movable member, the other end of the umbilical member being connected to the second relay portion.

Rotation axis module and articulated robot

A device and method for easily detecting an abnormality of a joint part of a delta-type parallel link robot having a link ball structure, by estimating a friction torque of a ball joint of the robot. A controller of the robot has: a control section configured to control the motion of the robot; a torque measurement section configured to measure or calculate, during the robot is operated, an amount of change in a drive torque, based on a current value of the motor, before and after the robot represents a specified posture where a sign of a relative angular velocity between a ball and a housing of the ball joint is changed; and a judgment section configured to judge that, when the measured amount of change in the drive torque exceeds a predetermined threshold, a friction state of the ball joint corresponding to the motor is abnormal.

Device and method for detecting abnormality of joint of parallel link robot

A laser beam machining apparatus capable of highly accurate machining at a high speed. A parallel link mechanism including a plurality of links is fixed to a frame and a workpiece holder having moving means is provided thereunder. The links of the parallel link mechanism connect a movable member with a stationary member, and the movable member is moved with respect to the stationary member by the extending/retracting operation of the links. A laser head serving as a machining head is attached to the movable member. A supply line includes a laser transmitting optical fiber, pipes for supplying water, assist gas, etc., and an electrical signal line. A laser beam LB outputted from the laser head performs machining on a workpiece W on the workpiece holder. The supply line passes through a through hole formed inside link joint portions on the stationary member. Hollow motors for driving the links of the parallel link mechanism are mounted on the stationary member.

Laser beam machining apparatus

An emergency stop switch mechanism for a robot which can take an emergency position when an external operation force is released and when a strong external operation force is applied. When the robot operation is started, a main lever La is pushed down from the OFF state with a normal external operation force. Since an elastic biasing force S,is sufficiently larger than S,a second ancillary lever Lc is pushed by a plunger PL and is turned downward together with a first ancillary lever Lb. A movable contact element ME of a contact mechanism section CM is moved to the ON position by the second ancillary lever Lc, so that the ON state (motion permitting state) is established. If emergency stop becomes necessary, the pressure of the main lever La is released from this state, or a specially strong force is applied to the main lever La. When the former is selected, the movable contact element ME is returned to the OFF position. When the latter is selected, a strong torque is applied to an axis AX,so that the first and second ancillary lever Lb and Lc become in a bent state. As a result, the OFF state is established, by which the robot is stopped.

Emergency stop switching mechanism for robot and teaching control panel provided with same

Growing community of inventors

Yamanashi, Japan

Kenichiro Abe