A gear drive, such as for an actuator, is a right-angle drive where toothed outer ridge of a face gear is coupled to teeth of a motor output shaft, and a set of planetary gears are engaged with a central sun gear of the face gear. The sun gear and planetary gears are aligned with the motor output shaft. For instance the motor output shaft may be substantially in the same plane with the sun gear and the planetary gears. From another standpoint the axis of the motor output shaft may intersect the sun gear, as well as intersecting a volume that the planetary gears sweep through as the planetary gears engage the sun gear.

A machine tool head for machining internal surfaces of a cavity defined by a monobloc caliper for a disc brake assembly. The tool head is an angle head comprising a cutter for machining said internal surfaces and a drive train configured to connect the cutter to an actuator. The cutter comprises a first cutting edge configured for cutting as the tool head is moved in a first direction and a second cutting edge configured for cutting as the tool head is moved in a second direction.

The present invention discloses a belt-transmission angle attachment head, including a housing, a power mechanism, a transmission mechanism and a spindle; the power mechanism and transmission mechanism are arranged in the housing; the power mechanism includes a servo motor and a reducer, the servo motor is connected to the reducer, and an input shaft of the reducer is vertically arranged with respect to an output shaft of the reducer; the transmission mechanism includes a driving wheel, a transmission belt and a driven wheel, and the driving wheel is mounted on the output shaft of the reducer; a side of the spindle is mounted on the housing via a rotating shaft, an end of the rotating shaft away from the spindle is mounted with the driven wheel, the driving wheel and the driven wheel are connected via the transmission belt, and the spindle and the power mechanism are located on the same side of the transmission mechanism. The angle attachment head has advantages such as small size, simple structure and suitable for deep cavity machining.

Milling device for prosthetic surgery comprising a milling tool rotating about a milling axis, and a handling body. The handling body is provided with a drive rotating rod which develops along a longitudinal axis of linear rotation and is connected to the milling tool in order to make the milling tool rotate about the milling axis.

A combined type angle head milling cutter is configured to machine mounting faces of an axial bearing. The combined type angle head milling cutter includes an angle head body, a lock nut, first slotted countersunk head screws, a first hexagon socket head cap screw, a first flat key, semicircle seal covers, first angular contact ball bearings, a cutter handle shaft lower adjusting pad, a cutter handle shaft, a cutter handle shaft upper adjusting pad, a bearing cover plate, a first bevel gear, a first spring washer, a second bevel gear, a bevel gear adjusting pad, an orientation shaft, cutter shaft inner-side seal covers, second hexagon socket head cap screws, a cutter shaft outer-side seal cover, a second slotted countersunk head screw, a small seal ring and the like.

A novel mounting assembly used with an air spindle is described. The mounting assembly includes an insertable top portion for inserting into a mounting collar and to be rotatable therein, the insertable top portion formed with an upper disk shape with a first diameter and a lower disk shape with a second diameter and adjacent to the upper disk shape, an outer circumference of the upper disk shape having a groove formed therein, and the upper disk shape and the lower disk shape having a passage axially formed therethrough perpendicular to the groove. The mounting assembly further includes a sleeve disposed below the insertable top portion, the sleeve defining an opening with a sidewall which is perpendicular to the insertable top portion, the opening sized to hold a spindle, a port inside a wall of the sleeve defining the opening providing fluid communications with the passage of the insertable top portion.

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 newly configured centerpoint drill and a drill attachment device that can be attached to a conventional cordless drill include configurations that require a user's hand to be in direct alignment with the keyless chuck of the drill to enable a user or operator to apply maximum pressure or force during use of a drill to reduce time and effort spent by a user/operator.

A gear drive, such as for an actuator, is a right-angle drive where toothed outer ridge of a face gear is coupled to teeth of a motor output shaft, and a set of planetary gears are engaged with a central sun gear of the face gear. The sun gear and planetary gears are aligned with the motor output shaft. For instance the motor output shaft may be substantially in the same plane with the sun gear and the planetary gears. From another standpoint the axis of the motor output shaft may intersect the sun gear, as well as intersecting a volume that the planetary gears sweep through as the planetary gears engage the sun gear.

A method for joining or machining, in particular a friction stir welding method, using an apparatus, in which a tool, in particular a friction stir welding tool, is driven via a spindle with a spindle axis. To achieve high process reliability, even when the method is applied in poorly accessible positions, an adapter, in particular an angle head, is arranged between the spindle and the tool so that the tool axis about which the tool rotates does not coincide with the spindle axis. A force acting on the spindle is measured and the method is controlled depending on the force measured at the spindle. The apparatus for joining or machining, in particular for friction stir welding, includes a headstock with a spindle, which can be rotated about a spindle axis and a tool, in particular a friction stir welding tool, which can be driven about a tool axis by the spindle.