A cooling bore guide for reaming an enlarged portion into a cooling bore of a rotor. The cooling bore guide may include a cutter guide for insertion into the cooling bore and a guide lock for insertion into an adjacent cooling bore.

Provided are a control device and a computing device capable of adjusting synthetic vibration for a machine tool. This control device, which controls a machine tool, comprises: a vibration command generation unit that generates a vibration command for vibrating an implement of the machine tool or a workpiece; a relative vibration command generation unit that generates a relative vibration command for vibrating the implement and the workpiece relatively; and a vibration phase adjustment unit that adjusts the vibration phase of at least one of the vibration command and the relative vibration command on the basis of the vibration command and the relative vibration command.

A drill bit for drilling a hard material includes a drill bit blade defining an axis of rotation and including a first side and a second side positioned respectively on first and second lateral sides of the axis of rotation. The drill bit blade further includes a blade tip point that is laterally biased relative to the axis of rotation, and a first blade edge and a second blade edge starting at the blade tip point and ending at the first side and second side, respectively. An angular bisector between the first and second blade edges is inclined at an angle relative to the axis of rotation.

A tool that cuts a hole for a single or double electric gang switch box. By having four blades, all cutting at the same time and in the shape of the switch box, a more accurate and appropriately placed hole may be provided. The hole saw may be configured with two centering drills so the tool is guided into the cut. An eccentric drive mechanism converts a rotary drive into reciprocating movement of perpendicularly opposed pairs of blades to cut a rectangular opening.

Methods for making ophthalmic lenses are generally discussed herein with particular discussions extended to plastic injection molded ophthalmic lens molds that are machined or lens buttons located on the injection molds that are machined. The machine process can include setting a lens axis of the ophthalmic lens and machining a ballast that is aligned to a major axis of a toric zone.

Disclosed is an alignment system for a vertical lathe, the lathe configured to perform a cutting process on a workpiece (W) mounted on a circular turn table (3) by rotating the workpiece (W), and the alignment system configured to, when the lathe performs the cutting process on an unbalanced eccentric workpiece, perform a center alignment operation for correcting imbalance. The alignment system includes an alignment mechanism which includes: multiple alignment weights (13) provided movable along an outer periphery (3a) of the circular turn table (3); and a movement mechanism (15) configured to move the alignment weights along the outer periphery (3a) of the turn table (3). The alignment system further includes a control unit (7) configured to calculate setting positions for the alignment weights (13), and to set the alignment weights (13) at the calculated setting positions using the movement mechanism (15), in order to correct the imbalance.

The device and the corresponding method according to the invention relate in particular to a CNC machine tool and a machining method preferably for large machining patterns. The CNC machine tool may comprise a machining head 2 which may be connected to a Z-axis 1 such that it can be manually and/or automatically changed, and which may have at least two tool spindles 3 for receiving tools 4. The Z-axis 1 can be moved in a linear manner at least along two linear axial directions. The Z-axis 1 and/or the machining head 2 may have at least one axis of rotation.

The invention provides a clamping system (1) for a rotary tool (70), for example a milling cutter or drill. The clamping system (1) includes a base element (10), a collet (30) and a clamping nut (50), said clamping nut (50) friction-locking the rotary tool (70) within the base element (10) with the collet (30). In order to avoid a relative rotation of the base element (10) and the collet (30), the clamping system (1) has a form locking anti-twist protection which blocks a rotation of the collet (30) relative to the base element (10).

A device for compensating the offset in automatic locking systems for the mounting of blanks comprising a box-like body composed of a T-shaped hollow body and a U-shaped base, which form an inner seat for a frustum-shaped jacket, which is arranged coaxially to the shank of the hollow body and above a piston, which can move transversely to the shank, a traction element being slideably arrangeable in the shank of the hollow body, the traction element cooperating selectively with balls which can be accommodated within openings provided in the shank and within second seats provided on the jacket, elastically compressible elements being arranged between the head of the hollow body and the jacket.

A clamping device for releasably holding a tool holder shank formed with a bore includes a housing having a forwardly facing surface and a bore. A drawbar is mounted reciprocally movable inside the bore and in a forward end has engagement device, which is arranged to engage with an engagement formation inside the bore of the tool holder shank. The drawbar is, in a rear portion, formed with a drawbar aperture, and a cam shaft extending through the drawbar aperture and being rotatably journalled in the housing and arranged to impart an axial displacement to the drawbar in relation to the housing. The cam shaft includes first and second spaced apart cam formations and an intermediate circular cylindrical portion located between the cam formations, wherein the first and second cam formations are journalled in a first and second seating apertures, respectively, in the housing on opposite sides of the drawbar.