A gripping device having a holder and two gripper units. Each of the gripper units has a base body and two base jaws. The base jaws can be moved synchronously in opposite directions relative to the respective base body. The gripper units are arranged side by side on the holder so that the base jaws of both gripper units can be moved parallel to a common gripper plane. The gripping device is designed as a single gripper in that only a first gripper finger is attached to each of the two outer base jaws. It can very easily be converted to a double gripper by attaching two further gripper fingers to the inner base jaws, or by removing the first gripper fingers and attaching a second gripper finger to each of the four base jaws.

Provided is a machine tool hand including a body portion that is mounted so as to be attachable to and detachable from a spindle of a machine tool, and that is provided with a flow path connected to a coolant-liquid supply path formed in the spindle; and two or more hand members that are attached to the body portion such that at least one of the hand members is pivotable about a prescribed axis, and that are capable of gripping an object therebetween by being closed. The flow path is provided with discharge ports via which a coolant liquid supplied from the coolant-liquid supply path is discharged toward surfaces of the hand members that are exposed to an outside, and a pressure of the coolant liquid causes an opening operation or a closing operation of the hand members.

Provided a full-automatic wheel hub feeding-blanking system for intelligent production line of automotive wheel hubs, comprising: an intelligent material rack and a robot; the intelligent material rack comprises a bracket assembly, a turntable assembly and a bearing seat assembly; the turntable assembly being rotatable is mounted on the bearing seat assembly; the bracket assembly mounted on the turntable assembly comprises a base provided with at least one group of lifting devices, and each the group comprises three the lifting devices, and each of which an automotive wheel hub supporting plate assembly is provided on, central axis of the three automotive wheel hub supporting plate assemblies forming the angle of 120 degrees; the robot being mounted on one side of the intelligent material rack and comprises a robotic arm, and a manipulator is mounted on the robotic arm, and the manipulator is used for clamping the automotive wheel hub.

A method and a system for handling slender bodies in a semi-finished production plant includes a cutting station separating slender bodies from a continuous wire, a finishing station of the head ends of the slender bodies, a dimensional verification station downstream of the finishing station, and transporting equipment transporting the slender bodies between stations. At or upstream of the cutting station a marking unit applies a reference marking on the slender bodies, which working identifies an original attitude including angular position. The transporting equipment includes gripping and locking assembly, locking at least the angular position of the reference mark to a relative reference system of the transport equipment. Upstream of the finishing station is a detecting and storing unit for data of the angular position to the relative reference system. A unit determines the original attitude of the slender bodies using the data in the dimensional verification station.

A machine tool includes a headstock that holds a workpiece, a tool post that is movable in a first axis direction parallel to a workpiece rotation axis and in a second axis direction orthogonal to the first axis and holds a tool, an in-machine robot, an opening for communicating the inside and the outside of a working chamber, and a door that opens and closes the opening. The robot includes a root joint fixed in the working chamber and a link unit positioned on a distal end side of the root joint. The root joint is a linear-motion joint extendable in a direction orthogonal to the workpiece rotation axis, and is a linear-motion joint extendable between the length for causing the entire link unit to be positioned inside the working chamber and the length for causing the entire link unit to be positioned outside the working chamber.

A workpiece clamp apparatus includes: a robot arm having, at a distal-end portion thereof, a holding section for holding a workpiece; a hydraulic-fluid supply coupler provided at the distal-end portion of the robot arm; a hydraulic-fluid supply device for supplying a hydraulic fluid to the hydraulic-fluid supply coupler; a clamping device having a plurality of clamping members that grip the workpiece for machining with a machine tool; and a cylinder that has a hydraulic-fluid supply port to which the hydraulic-fluid supply coupler can be connected and that drives the clamping member in the workpiece-gripping direction as a result of the hydraulic fluid being supplied via the hydraulic-fluid supply port.

A machining system includes a robot arm for changing a workpiece or inspecting a machined workpiece, and a probe that is attached to a distal end portion of the robot arm via a force sensor, where the robot arm is controlled such that the probe is arranged at a predetermined measurement position in contact with a side surface of a tool holder, where detection values of the force sensor are obtained over a predetermined period of time in a state where a main spindle is performing rotation operation, where an attached state of the tool holder is determined based on the detection values obtained over the predetermined period of time.

A gripper capable of lifting a work piece includes: a body including a sliding direction and a lifting axis defining a first angle relative to the sliding direction; a plurality of sliding blocks slidably mounted on the body and located at two sides of the lifting axis to move in the sliding direction toward or away from each other, wherein the sliding blocks each include a receiving hole at a second angle relative to the sliding direction; and a plurality of fingers slidably disposed in the receiving holes, and each including: a nose portion disposed in the receiving holes, and a finger portion to grip the work piece. When the sliding blocks are in the lifting position, the fingers are retracted into the receiving holes to make the finger portions move up along the lifting axis toward the body by a certain distance while clamping the work piece.

While the loading member supporting mechanism moves the loading member from the workpiece set state to the workpiece retracted state and returns to the workpiece set state again, the displacement drive unit and the rotation drive unit perform an operation of disposing the workpiece holding portion arranged at the processing position to the replacement position and an operation of disposing the workpiece holding portion disposed at the replacement position to the processing position in a trajectory in which the loading member does not interfere with the shoe.

A part-holding device includes a holding portion configured to hold an object to be held and a main body configured to detachably connected to the holding portion. The main body has a first surface, a second surface, and a third surface oriented in respective differing directions, and the holding portion has a first abutting surface, a second abutting surface and a third abutting surface capable of abutting against the first surface, the second surface, and the third surface, respectively. The part-holding device further includes pressing means configured to press the holding portion to cause the first abutting surface to abut against the first surface and to cause the second abutting surface to abut against the second surface, and fixing means configured to cause the third abutting surface to abut against the third surface and to fix the holding portion to the main body.