Abstract: This robot system includes: an automated guided vehicle that includes a support surface and automatically travels; a robot cell including a seat surface to be mounted on the support surface, a ground contact portion protruding downward from the seat surface so as to contact with a ground, an articulated arm, and a robot controller that controls operation of the articulated arm; and a switching mechanism that performs switching between a transferable state in which the seat surface is mounted on the support surface and the ground contact portion is separated from the ground, and a placed state in which the seat surface is separated from the support surface and the ground contact portion contacts with the ground.

Abstract: A power supply system includes a movable power supply device including a first power storage device, a robot including a second power storage device, and a controller, and the controller performs control for conveying the first power storage device to the robot by using the power supply device, on the basis of information about an amount of power stored in the second power storage device.

Abstract: A power supply system includes: a robot including a power storage device; a movable power supply device; and a controller. The power supply device includes a first electrical connector which is electrically connectable to a second electrical connector of the robot and which is electrically connected to a power supply source via a wire, and the controller performs control for electrically connecting the first electrical connector and the second electrical connector and supplying power to the robot, on the basis of information about an amount of power stored in the power storage device.

Abstract: A traveling robot includes: a traveling body including a truck and a drive unit, the truck including front and rear wheels and a floor frame, the drive unit being configured to rotate the wheels; a support mechanism configured to raise or lower a holding tool configured to support a mounting plate; and a picking robot configured to load a cargo onto the mounting plate or unload the cargo from the mounting plate. The drive unit is mounted on the floor frame, and the floor frame includes a projecting portion projecting forward from a portion on which the drive unit is mounted. The support mechanism is attached to a front end portion of the projecting portion. The picking robot is provided at the projecting portion, is arranged between the support mechanism and the drive unit in a front-rear direction, and is arranged on or behind an imaginary vertical line passing through a front axle.

Abstract: There is provided a conveyance device that can convey a conveyance truck composed of two truck bodies on which a worker rides and does a work in a widthwise direction of a large conveyance object, using a friction type drive unit disposed on a linear route or a curved route, which can improve workability and reduce manufacturing cost. A conveyance device includes a connecting device C for connecting conveyance trucks 1 on front and rear positions. Each of the trucks 1 is configured so that a first truck body 1A whose front and rear end surfaces are arc-shaped projections in plan view and a second truck body 1B whose front and rear end surfaces are arc-shaped recesses in plan view are connected to be capable of curving in a horizontal direction, and upper surfaces of the first truck body 1A and the second truck body 1B are approximately horizontal surfaces.

Abstract: There is provided a conveyance device that can convey a conveyance truck composed of two truck bodies on which a worker rides and does a work in a widthwise direction of a large conveyance object, using a friction type drive unit disposed on a linear route or a curved route, which can improve workability and reduce manufacturing cost. A conveyance device includes a connecting device C for connecting conveyance trucks 1 on front and rear positions. Each of the trucks 1 is configured so that a first truck body 1A whose front and rear end surfaces are arc-shaped projections in plan view and a second truck body 1B whose front and rear end surfaces are arc-shaped recesses in plan view are connected to be capable of curving in a horizontal direction, and upper surfaces of the first truck body 1A and the second truck body 1B are approximately horizontal surfaces.

Abstract: An mounting arrangement of a tool holder in a machine tool comprises a main shaft and the tool holder each having an extending end face formed by extending a given reference end face of the main shaft and a given collar end face of the tool holder, toward one another, respectively, both of which end faces are normally separated with a prescribed clearance, with required extensions so as to come into contact with one another when a tapered shank of the tool holder is fitted into a flared hole of the main shaft, so that the tool holder can be mounted in the main shaft securely owing to a high degree of integration, without the occurrence of friction due to the phenomenon of a fretting corrosion or the like in the contact surfaces between the flared hole and the tapered shank. Such a high degree of integration of the main shaft and the tool holder enables a deep cutting to be readily performed in relation to a workpiece.

Abstract: A tool-holder chuck for receiving therein a tool holder provided with various tools such as end mills or drills, etc., e.g. in a milling machine, which chuck can be changed easily when necessary, comprising a clamp including a nut which is threaded to a chuck body, a clamp ring which can move only in the coaxial direction against the body, and a plurality of rolling members that transmit at least the coaxial movement of the nut to the clamp ring when it is screwed in, projections on the tool holder being pressed inward by the coaxial movement of the clamp ring as a result of screwing of the nut, and a taper spindle of the holder, that interlocks with a tapered bore of the chuck body. In this way direct sliding friction against the projections is eliminated, and the tool holder can be clamped tightly, with relatively small screwing force of the nut, utilizing the sliding friction between the nut and the clamp ring.