Fanuc Corporation

Jun Ibayashi

Hirokazu Kume

Munehiro Jinushi

Ryo Nihei

Toshihiko Inoue

Satoshi Kinoshita

Takatoshi Iwayama

Takayuki Wakabayashi

A maintenance jig for a balancer of a robot includes a balancer with a casing closed at both ends by two end plates, each having a through hole, a movable member disposed in the casing, movable in an axial direction of the casing, a rod, one end of which is fixed to the movable member and another end of which is disposed outside the casing, and a force generating member accommodated in the casing. The force generating member generates a pulling force that pulls the rod into the casing. The maintenance jig includes a first member detachably fixed to the other end plate, a second member includes a male screw portion to be fastened to a screw hole of the first member, and a rotational force input unit through which a rotational force is input.

Maintenance jig for balancer of robot

An umbilical member arrangement unit of a robot arm section for avoiding interference between the umbilical member and external equipment has a first fixing member attached to a nonrotating part and adapted to nonslidably fix the umbilical member, and a second fixing member attached to a rotating part so as to integrally rotate with the rotating part and adapted to nonslidably fix the umbilical member. When the rotating part is positioned at a center position of a rotational motion range thereof about the longitudinal axis, the first and second fixing members direct the umbilical member along first and second tangential lines, respectively, the two tangential lines being generally perpendicular to each other, and, the fixing members are positioned in the same region in relation to two regions defined by a boundary plane parallel to the second tangential line, on which the longitudinal axis lies.

Umbilical member arrangement unit of robot arm section

An umbilical member arrangement unit for an umbilical member, having a simple structure and high rigidity, capable of avoiding interference between the umbilical member and external equipment. The unit has a guide member constituted by a first plate member attached to a front end of a wrist section, a second plate member opposed to the first plate member and a connecting member connecting the first and second plate members. A cross-sectional region of the connecting member includes the wrist axis, extends from the axis in a first radial direction by a distance not smaller than a half of a size of the umbilical member in the cross-sectional direction thereof, and extends from the axis in an axisymmetrical second radial direction by a distance not larger than a half of the size of the umbilical member, so that the umbilical member contacts the second plate member and/or the connecting member at any rotational angular position of the guide member.

Umbilical member arrangement unit of robot wrist section

A cable laying structure for a robot, which does not interfere with external devices in a periphery of a forearm. Camera and hand control cables and motor control cables are drawn into a robot mechanism through a connection panel of a base of a robot main body. While allowing the motor control cables to sequentially diverge, the control cables are arranged in a robot arm along an upper arm portion and guided to the forearm. The control cables are introduced into the forearm with a shield and a sheath removed. After reaching an end effector-mounting face, the control cables are connected to a camera and a hand. The forearm is formed of conductive material and grounded on the base of the robot main body to have the same electric potential as the base by using an earth cable, and therefore the forearm is utilized in replacement of the shield.

Cable laying structure for robot

An industrial robot comprises a column 1 fixed to an installation base BS, a first axis J , which is a linear movement axis, a second axis J and a third axis J , which are rotational axes, and a fourth axis J in the form of a driving axis (rotational axis) of a working tool. A food grade lubricating oil is used for the linear guide ( ), ball screw ( ), bearing ( ), speed reducers ( ) and gears ( ) of these axes. Oil seals ( ) for sealing the food grade lubricating oil are made from a material which is harmless to human bodies, for example, a fluorine resin material, in consideration of their wear.

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Yamanashi, Japan

Jun Ibayashi