Abstract: In order to alleviate a user's burden of maintenance, the present invention calculates an actual lifetime of a cable, which is the intrinsic lifetime of the cable, and extends cable replacement cycles. Provided is a lifetime prediction device for a cable used in an industrial machine, the lifetime prediction device being provided with: a motion amount analysis unit that analyzes a motion amount of a motion axis of the industrial machine on the basis of a motion program for operating the industrial machine; and a lifetime calculation unit that calculates a predicted value of a lifetime of the cable by applying to the motion amount a relational expression between the motion amount and the lifetime of the cable based on the Eyring model.

Abstract: A machining system is provided with a machine tool including a securing device for securing a workpiece, a robot for attaching the workpiece to the securing device, a hand attached to a tip end of an arm of the robot, and a control device for controlling the machine tool, the robot, and the hand. The securing device includes holding members for holding a workpiece, and holding member drive motors for moving the holding members.

Abstract: An object is to exhibit a higher sealing performance against an external pressure, to more reliably prevent breakage of a sealed state established by an inner seal member, and to maintain the soundness of inner mechanical components. Provided is a joint structure including two joint members, a driving mechanism that rotationally drives the two joint members about a predetermined axis relative to each other, two seal members forming a seal between the joint members at positions doubly surrounding the outside of a lubricant storing part in the driving mechanism, and a pressure-applying means that makes the air pressure in a space provided between the two seal members, higher than the pressure of the outside air.

Abstract: An object is to exhibit a higher sealing performance against an external pressure, to more reliably prevent breakage of a sealed state established by an inner seal member, and to maintain the soundness of inner mechanical components. Provided is a joint structure including two joint members, a driving mechanism that rotationally drives the two joint members about a predetermined axis relative to each other, two seal members forming a seal between the joint members at positions doubly surrounding the outside of a lubricant storing part in the driving mechanism, and a pressure-applying means that makes the air pressure in a space provided between the two seal members, higher than the pressure of the outside air.

Abstract: An umbilical member clamping device includes a base member attached to a body of a robot, an elastic body provided so as to surround a periphery of an umbilical member bundle including umbilical members, a clamp member secured to the base member so as to press the umbilical member bundle to the base member via the elastic body, and an insert member inserted to a corner portion of a space which receives the umbilical member bundle and which is defined by the clamp member and the base member when the clamp member is secured to the base member.

Abstract: A machining system is provided with a machine tool including a securing device for securing a workpiece, a robot for attaching the workpiece to the securing device, a hand attached to a tip end of an arm of the robot, and a control device for controlling the machine tool, the robot, and the hand. The securing device includes holding members for holding a workpiece, and holding member drive motors for moving the holding members.

Abstract: An umbilical member clamping device includes a base member attached to a body of a robot, an elastic body provided so as to surround a periphery of an umbilical member bundle including umbilical members, a clamp member secured to the base member so as to press the umbilical member bundle to the base member via the elastic body, and an insert member inserted to a corner portion of a space which receives the umbilical member bundle and which is defined by the clamp member and the base member when the clamp member is secured to the base member.

Abstract: A parallel link robot (10) provided with a base (11), a moving part (12), three links (20a to 20c) coupling the base and the moving part and having respectively single degrees of freedom with respect to the base, and three actuators (13a to 13c) respectively driving the links, each of the links comprised of a drive link (21a to 21c) coupled with the base and two driven links (22a to 22c, 23a to 23c) coupling the drive link and the moving part and parallel to each other, and further provided with a posture changing mechanism (15) which changes a posture of an element (19) attached to the moving part, an additional actuator (13d to 13f) arranged between the two driven links of at least one link in parallel to these driven links, and a power transmission shaft (39) which extends coaxially from the additional actuator and transmits rotational drive force to the posture changing mechanism.

Abstract: A parallel link robot (10) provided with a base (11), a moving part (12), three links (20a to 20c) coupling the base and the moving part and having respectively single degrees of freedom with respect to the base, and three actuators (13a to 13c) respectively driving the links, each of the links comprised of a drive link (21a to 21c) coupled with the base and two driven links (22a to 22c, 23a to 23c) coupling the drive link and the moving part and parallel to each other, and further provided with a posture changing mechanism (15) which changes a posture of an element (19) attached to the moving part, an additional actuator (13d to 13f) arranged between the two driven links of at least one link in parallel to these driven links, and a power transmission shaft (39) which extends coaxially from the additional actuator and transmits rotational drive force to the posture changing mechanism.

Abstract: A sealing device provided to a joint section of a robot. The sealing device includes overlapped seal portions having a multi-stage configuration, provided for a driving mechanism incorporated into the joint section. The overlapped seal portions include a first seal portion including a first contact seal element sealing a first inter-member gap defined adjacent to a lubricant retaining section provided in the driving mechanism; and a second seal portion arranged outside the first seal portion and including a second contact seal element sealing a second inter-member gap defined in a circumferential wall of the joint section, the circumferential wall defining an accommodation space for accommodating the driving mechanism.

Abstract: An industrial robot (10) comprising three power transmission units (21, 22, 23) arranged concentrically and three drive means for driving the three power transmission units, respectively, is disclosed. The drive means for at least one of the three power transmission units includes two motors (31, 34). Also, all of the three power transmission units and the three drive means are desirably built into the base (15) of the industrial robot. This configuration makes it possible to have high-duty operation with a comparatively compact structure.

Abstract: 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.

Abstract: A sealing device provided to a joint section of a robot. The sealing device includes overlapped seal portions having a multi-stage configuration, provided for a driving mechanism incorporated into the joint section. The overlapped seal portions include a first seal portion including a first contact seal element sealing a first inter-member gap defined adjacent to a lubricant retaining section provided in the driving mechanism; and a second seal portion arranged outside the first seal portion and including a second contact seal element sealing a second inter-member gap defined in a circumferential wall of the joint section, the circumferential wall defining an accommodation space for accommodating the driving mechanism.

Abstract: An industrial robot (10) comprising three power transmission units (21, 22, 23) arranged concentrically and three drive means for driving the three power transmission units, respectively, is disclosed. The drive means for at least one of the three power transmission units includes two motors (31, 34). Also, all of the three power transmission units and the three drive means are desirably built into the base (15) of the industrial robot. This configuration makes it possible to have high-duty operation with a comparatively compact structure.

Abstract: An industrial robot including a base carrying out a relative linear motion, a body carrying out a relative rotary motion and a cable harness for supplying electric power or transmitting control signals to operating circuits, wherein the cable harness includes a first bundle located in the base and a second bundle located in the body to be integral with the body, wherein, in the first bundle, a plurality of multi-core cables and tubes are flatly arranged parallel to each other and each of the multi-core cables and the tubes are bonded to the adjacent one with adhesive, and wherein, in the second bundle, the plurality of multi-core cables and tubes are separated from each other.

Abstract: A lubricant draining device for draining a lubricant from a closed mechanical section provided in a machine structure such as a robot, a machine tool and an injection molding machine. The lubricant draining device includes a wall defining the mechanical section, the wall including a drain port communicated with an interior space of the mechanical section while permitting a lubricant to flow therethrough; a tube connected at a proximal end thereof to the drain port and permitting a lubricant to flow therethrough; a blocking member blocking a flow of a lubricant through the tube in a releasable manner; and a retaining section retaining the tube at a location adjacent to the wall with the tube being kept connecting with the drain port. The retaining section may include a chamber, provided on the wall, for accommodating the tube in its entirety with the tube being removable from the chamber. The chamber may be provided with a detachable cover.

Abstract: 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.

Abstract: A gear mechanism comprises a housing, an input gear of helical gear supported by the housing for rotation in first and second rotational directions and adapted to be connected to a rotational power source, an output gear of a helical gear supported by the housing for rotation, a first gear train for transmitting the rotational power from the input gear to the output gear when the input gear rotates in the first rotational direction, a second gear train for transmitting the rotational power from the input gear to the output gear when the input gear rotates in the second rotational direction.