A gripper truck assembly for moving a workpiece with respect to a machining station includes a gripper truck; a gripper arm extending from a proximal end connected to the gripper truck to an opposite distal end; a gripper including at least one jaw moveable between a closed position for gripping the workpiece and an open position for releasing the workpiece, wherein the gripper is connected to the distal end of the gripper arm by a joint configured to permit a rotation of the gripper; a hydraulic gripper actuator accommodated in the gripper arm and operatively connected to the gripper for actuating the at least one jaw of the gripper between the open position and the closed position; a gripper rotation actuator for actuating the rotation of the gripper with respect to the gripper arm about the gripper rotation axis.

A manufacturing system for machining comprises a machine tool and a handling cell. The machine tool is arranged for multi-axis machining and includes a tool holder and a workpiece holder, which are movable relative to each other in at least three axes. The handling cell comprises a first interface to the machine tool, which is laterally coupled to the working space, a second interface for transfer purposes, a handling unit, and at least one buffer storage, wherein the handling unit is arranged for an automated workpiece change. A manufacturing line for machining comprises at least one manufacturing system and a combined transfer and storage device.

A machine tool includes a Z-slider with a main spindle rotating about a spindle axis, a main body on which the Z-slide is arranged, a machining table with a machining plane, a clamping device for clamping a workpiece, and a first drive to rotate the clamping device about an rotational axis. A support member is arranged on a pivot-axis housing on which the machining table is arranged. A second drive pivots the support member and the machining table about a pivot axis. The support member has first and second legs. The machining table is arranged on the first leg such that the support member and the housing form a U-shaped unit and provide an interspace between the second leg and the housing, into which interspace a toric workpiece clamped on the clamping device can project and is rotatable about the axis of rotation by the first drive.

A tool positioning and holding mechanism includes a mounting frame, a feed member, a tool support, a positioning member, an elastic member, and a blocking member. The feed member is slidably mounted on the mounting frame. The tool support is fixed on the feed member and defines a receiving hole to receive the tool. The positioning member is pivotally coupled to the tool support and partially received in the tool support. The elastic member is located between the positioning member and the tool support. The blocking member is fixed on the mounting frame and includes a pushing portion configured to resist the positioning member. The feed member can move the positioning member to allow detachment of the positioning member from the pushing portion, and upon detachment of the positioning member, the positioning member is configured to rotate under an elastic force of the elastic member to position the tool.

Provided is a linear movable rotary union including a driving shaft comprising a plurality of fluid supply paths; a hollow middle housing surrounding an outside of the driving shaft and comprising a plurality of first through holes in a sidewall; a plurality of first sealing members provided between the middle housing and the driving shaft to prevent leakage of a fluid; a hollow outer housing surrounding an outside of the middle housing and comprising a plurality of second through holes in a sidewall; and a plurality of second sealing members provided between the middle housing and the outer housing to prevent leakage of the fluid, and wherein the driving shaft is installed to be capable of rotational motion in the middle housing, and the middle housing is installed to be capable of reciprocating motion in an axial direction in the outer housing.

A spindle arrangement for a machine tool, comprising a spindle for driving a tool and at least one actuator for exciting vibration of the tool, characterized in that the spindle arrangement is provided with a compensation device for at least partly compensating the inertia forces produced by the vibration excitation in the spindle region.

A machining head for the mechanical, in particular cutting, machining, in particular for the actuation, of a workpiece, having: a housing, a housing-side coupling region for coupling a machining tool to be coupled to the machining head, wherein the housing-side coupling region comprises at least one coupling interface for directly coupling a machining tool to be coupled to the machining head.

A pallet changing apparatus adopting a table 4 capable of moving back from and forth for a side of a turning shaft 1 and having a oscillating portion 41 for placing workpieces W, W by means of pallets P, P so as to oscillate freely by an upright portion 42 at the leading end of the table 4, wherein the turning shaft 1 covers a turning supporting portion 11 at its lower end side and turns together with a pallet changing arm 3 and moves freely in a vertical direction, and an insertion and removal hollow space 20 is provided, at the covering region, and allows the upright portion 42 to be inserted into the insertion and removal hollow space 20 and removed from the insertion and removal hollow space 20.

Provided is a linear movable rotary union including a driving shaft comprising a plurality of fluid supply paths; a hollow middle housing surrounding an outside of the driving shaft and comprising a plurality of first through holes in a sidewall; a plurality of first sealing members provided between the middle housing and the driving shaft to prevent leakage of a fluid; a hollow outer housing surrounding an outside of the middle housing and comprising a plurality of second through holes in a sidewall; and a plurality of second sealing members provided between the middle housing and the outer housing to prevent leakage of the fluid, and wherein the driving shaft is installed to be capable of rotational motion in the middle housing, and the middle housing is installed to be capable of reciprocating motion in an axial direction in the outer housing.

A pallet changing apparatus which adopts a table 4 that is able to move back and forth in relation to a turning shaft 1 and has a oscillating portion 41 for placing workpieces W, W by way of pallets P, P so as to oscillate freely by a rising portion 42 at the leading end of the table, and a bridging extending portion 31 which bridges a supporting portion of pallet P or P in a pallet changing arm 3 with both sides of the turning shaft 1 forming a shape of covering across the upper side of the rising portion 42 at a stage of the table 4 transferring pallet P.