A friction stir welding attachment includes a body configured to be attached to a spindle supported by a spindle head of a machine tool, a metalworking shaft rotatably supported by the body wherein a welding tool is attachable to the metalworking shaft, a plurality of air motors provided in the body, and a transmission mechanism configured to transmit a rotation of each of the plurality of air motors to the metalworking shaft. A fixing portion is provided to supply external air to the plurality of air motors. A drive air distributor is provided to distribute drive air to the air motors. A rotation sensor for detecting a rotation state is provided to the metalworking shaft.

A machining unit for a machine tool and machine tool having such a machining unit comprises a head carrier that is attached to the machine tool, a pivot head held on the head carrier in such a way that the pivot head can be pivoted about a pivot axis, a working spindle, which is arranged on the pivot head and has a spindle axis that is tilted in relation to the pivot axis, a spindle motor, which is arranged in the head carrier and has a drive shaft arranged parallel to the pivot axis, and a drive transmission for transmitting the rotational motion of the drive shaft of the spindle motor to the working spindle, wherein the drive transmission has a transmission stage that can be shifted. The pivot head has a shifting transmission shaft that is oriented coaxially to the pivot axis of the pivot head, wherein the transmission stage that can be shifted has a hollow shaft movably supported on the shifting transmission shaft of the pivot head.

A tool attachment includes: an attachment housing; a fastening interface situated on the attachment housing for detachable fastening on a handheld power tool, the fastening interface having a locking unit which, (i) in a locked state, locks the tool attachment for operation on the handheld power tool, and, (ii) in the unlocked state, enables removal of the tool attachment from the handheld power tool; and a first angle position setting unit for setting a predefined angle position of the tool attachment on the handheld power tool, the first angle position setting unit being operable in the locked state and in the unlocked state of the locking unit to enable a change of the predefined angle position.

Provided is a method of manufacturing an elbow, including: a first cutting step of cutting a material by relatively moving a cutting section of a cutting tool, which is formed of at least a part of a substantially spherical shape, along an inner side surface of the elbow to be finished in a direction from a first end surface to a second end surface of the material; and a second cutting step of cutting the material by relatively moving the cutting section along the inner side surface of the elbow to be finished in a direction from the second end surface to the first end surface of the material.

A drilling-milling device comprising a housing; a drive shaft; a spindle; and a brake. The drive shaft and the spindle being coupled to one another by a gear mechanism, and the brake being coupled to the spindle and a braking torque of the brake being transmitted to the housing.

A motor spindle having a first electromagnetic drive system including a stator unit and a rotor unit which can rotate about an axis of rotation and has at least one rotor shaft and a tool receiver for receiving a machining tool. At least one bearing unit provides rotationally mounting of the rotor unit in the stator unit. The tool receiver is arranged in an end region of the rotor unit. The stator unit has a stator housing with an end section arranged in the end region of the rotor unit. The stator unit comprises at least one motor, having a second electromagnetic drive system, with a stator and a rotational rotor, wherein the rotor has at least one rotational housing element of the end section of the stator unit.

A holder for clamping a tool includes a clamping mechanism for clamping the tool, and an exposed portion. The clamping mechanism is switchable between a clamping state and an unclamping state. The clamping state is a state in which removal of the tool from the holder is hindered. The unclamping state is a state in which removal of the tool from the holder is allowed. The exposed portion is exposed outside the holder and directly or indirectly and mechanically linked to the clamping mechanism. The exposed portion is pushed in one direction for movement to thereby switch the clamping mechanism to the unclamping state.

A drill socket off-set drive assembly is an adapter for use in an electric drill that provides a right angle drive and an offset drive in one unit that is adapted to use various sized sockets for use on hexagonal fastener heads. A throughhole in the housing aligning with the throughhole in the socket allows use of the device on any length of bolt or all-thread.

The present invention relates to a battery powered right angle aircraft drill comprising a motor, an adapter collar, a spindle gear shaft, and an angled head. An electrically powered motor rotates a shaft. The adapter collar secures the motor to the angled head, establishing a formlocking connection between the motor and the angled head along an axis, the adapter being annular and having an opening extending therethrough. The shaft of the motor is cooperatively joined to the spindle gear shaft. The spindle gear shaft has a first end extending to a second end, the first end joined to the shaft of the motor, the second end of the spindle gear shaft includes splines. The angled head includes splines mating to the splines of the spindle gear shaft, and further includes a tool bit receptacle, whereby the rotational force of shaft of the motor is translated through the spindle gear shaft to the angled head, actuating a tool bit in the tool bit receptacle.

A tool attachment (200) for a robotic manipulator (100), includes a housing (202), an input shaft (208) configured to be engaged by an end effector (105) of the robotic manipulator (100), an output shaft (210), and a tool (214) coupled to the output shaft (210). The housing (202) includes at least one slot or at least one projection for preventing relative rotational movement between the housing (202) and a housing of the robotic manipulator (100). Upon engagement of the end effector (105) of the robotic manipulator (100) with the input shaft (208), the tool attachment (200) is retained on the robotic manipulator (100), and rotational movement of the end effector (105) of the robotic manipulator (100) acts to rotate said input shaft (208) and drive said tool (214).