A machining spindle that includes a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft to move the shaft axially and a control rod (24) of a tool-holder attachment system connected to the second section by a full connection. The spindle includes locking means (40) mounted movable between the first and second sections by switchover means (50), between a first position in which the first and second sections are in full connection and a second position allowing axial movement of the second section relative to the first section, enabling the control rod to be moved axially under the action of the second actuator to control the attachment system in a released position of the tool holder.

A clamping device includes a clamping chuck and a clamping element, which can be clamped thereto. The clamping chuck has a receiving opening for the clamping element and clamping members for clamping the clamping element in the receiving opening. The clamping element is elongated, while the clamping chuck is provided with an elongated receiving opening for the clamping element. A resiliently flexible centering element, which aligns the clamping element in response to the insertion into the receiving opening at right angles to the longitudinal axis of the receiving opening, is arranged on the clamping chuck in the insertion area of the receiving opening. Such a clamping device is suitable in clamping systems by means of which large to very large workpiece carriers can be clamped in the work area of a machine tool in a repeatably accurate manner.

An air chuck includes a chuck unit including a pair of fingers that capable of being freely opened and closed, an operation unit that includes an operation mechanism, which opens and closes the pair of fingers, connection mechanisms for attaching the chuck unit to the operation unit such that the chuck unit is freely attachable and detachable to and from the operating unit, and a locking mechanism that locks the pair of fingers such that the pair of fingers are capable of being freely opened and closed when the chuck unit is attached to the operation unit and such that the pair of fingers are not able to be opened or closed when the chuck unit is detached from the operation unit.

A fulcrum opening/closing type air chuck includes porous bodies that are attached to a body and come into contact with fingers, and purge air passes through the porous bodies and is discharged to the outside.

A processing system for a workpiece, with a thread formation device (44) for forming a thread in a workpiece, comprising a housing and one or more tool take-ups for a thread forming tool, rotatably and displaceably mounted in or on the housing, a linear drive and a rotational drive for the tool take-up(s) and a take-up device with one or more take-ups (19) for integrating the thread formation device (44), is characterised in that the thread formation device (44) can be integrated into the take-up device by means of a disconnectable plug connection.

An air discharge method for pneumatic tool and device thereof, comprising a tool body of a pneumatic tool installed with an air guide element provided with a first air vent hole and a second air vent hole, and a brake element provided with a first air guide hole and a second air guide hole that is mounted and disposed on the air guide element, When using the pneumatic tool, the adjustment element is rotated in a clockwise or counter-clockwise direction to cause the air guide element to cover the first air guide hole of the brake element, which enabling backward discharge of air and preventing dust from flying upward to facilitate drilling operations, or the adjust element is rotated to cause the air guide element to cover the second air guide hole of the brake element, which enabling forward discharge of residual shards to facilitate cutting operations.

Apparatus for machining a component of a gas turbine engine, the apparatus including: a flexible pipe having a first end and a second end and defining a conduit for receiving a fluid; one or more first actuators arranged to enable the first end of the flexible pipe to be re-positioned relative to the second end of the flexible pipe; a turbine positioned adjacent to the first end of the flexible pipe, the turbine being arranged to receive fluid from the conduit of the flexible pipe; and a tool head coupled to the first end of the flexible pipe, the tool head including: a fastener arranged to fasten to a tool and to receive torque from the turbine.

An axis arrangement for a machine tool is disclosed. In an axis housing a support spindle is rotationally supported about a longitudinal axis by a spindle bearing arrangement. The support spindle accommodates a clamping unit that can be switched between a clamping position and a release position by a cylinder device. The cylinder device has a piston that is moveable in an axial direction parallel to the longitudinal axis at which a piston rod is rotatably supported. In the cylinder housing the support spindle is supported in an axial direction at the cylinder housing via a first axial bearing. The piston rod is supported in the axial direction at the piston via a second axial bearing. Preferably the support spindle is exclusively supported in the axial direction in the cylinder housing.

A hole-making system for making holes on the collar of a cylinder is provided. The hole making system includes a hand unit for making holes on the collar of the cylinder and the hand unit being configured to be used with two hands. The hole making system further includes a control unit configured to control operation of the hand unit. The hole making system further includes a pedal configured to enable a user to control the operation of the hand unit with a foot. The hand unit is held and controlled with two hands and a drilling command is provided by the pedal, allowing the user to control the hand unit in a more reliable manner.

A control method of controlling a chuck device in a drive system for driving the chuck device, comprising opening or closing fingers by opening a switching valve at a first degree of valve opening to supply the fluid to a first cylinder chamber of the chuck device and to discharge the fluid from a second cylinder chamber of the chuck device so that a piston moves in one direction, and stopping the fingers in an intermediate position between a fully open position and a fully closed position by opening the switching valve at a second degree of valve opening to stop supplying the fluid to the first cylinder chamber and to stop discharging the fluid from the second cylinder chamber when the axial position of the piston reaches a target position set in advance while the fingers are being opened or closed.