A method of manufacturing a jointed device of a medical instrument includes providing a machining fixture on a wire electrical discharge machine having an electrical discharge wire. The fixture includes member holes each adapted to accommodate at least one workpiece, the workpiece being adapted to form a portion of the jointed device of the medical instrument. At least two workpieces each include a first workpiece and a second workpiece, accommodated within at least two member holes of the member holes. The fixture is associated with the wire electrical discharge machine so that the electrical discharge wire can cut at most one workpiece at a time. The machining fixture is rotated around a fixture rotation axis at a predetermined angle, which is chosen to provide that the electrical discharge wire can cut only one workpiece at a time. The workpieces are cut by the electrical discharge wire.

A spark erosion machine includes a frame with a space for spark erosion of a workpiece, a wire for cutting by spark erosion, and a wire guide head for guiding the wire across the workpiece, so as to detach an offcut from it; an offcut support mounted movably relative to the guide head, the support being configured to move at least between a retention position under the spark erosion space, where it can collect the offcut, and a retracted position; and an offcut extractor.

A rotary table device of an electric discharge machine is provided with a face plate on which a workpiece is placed, a power unit that generates a driving force for rotating the face plate, and a speed reducer connected to the power unit and configured to reduce the rotational speed of the power unit. The respective centers of rotation of the power unit and the speed reducer are disposed on one and the same axis, and a rotation detector for detecting a rotational position of the face plate is disposed in a space defined by an outer peripheral portion of the speed reducer and an inner wall of a housing of the rotary table device.

In a wire electric discharge machine, a workpiece mounting unit mounts a workpiece tilted at a preset angle to a plane based on two orthogonal axes, X- and Y-axes. An XY-coordinate system is tilted at the preset angle so that it is transformed into an XY-coordinate system. A machining command value commanded by a machining program is corrected based on the XY-coordinate system. Thus, the tilted workpiece is taper-machined with a wire electrode kept substantially perpendicular to the XY-plane (table surface).

Disclosed is a wire cutting precision clamp, comprising a base, a gear, a bearing, a rotating shaft, a sliding block, a gland and the like, wherein the rotating shaft is installed on the base) via the bearing and the gland, the gear is installed on the rotating shaft, and the sliding block is closed on the base by the end cover. Symmetrical T-shaped chutes are provided on two inner sides of the base, symmetrical T-shaped columns are provided on the lower end face of the sliding block, and the T-shaped columns of the sliding block are capable of being inserted into the T-shaped chutes of the base. A rack is arranged in the middle of the lower end face of the sliding block, and the rack is engaged with the lead screw gear.

The present invention relates to a transmission apparatus, which comprises a base, a transmission module, a first protection sleeve, and a second protection sleeve. The transmission module is disposed on the base and includes a moving unit. The first protection sleeve is disposed around the outer periphery of the transmission module and on the base. One end of the second protection sleeve is covered by the first protection sleeve. The second protection sleeve is disposed around the moving unit and moves linkedly along the moving unit. Thereby, the transmission apparatus according to the present invention may protection the transmission module.

A rotary table apparatus includes a rotary table body, a table rotor supported on the rotary table body and configured to be rotatable, a driving unit for driving the table rotor, a seal mechanism including a sealer disposed between the rotary table body and the table rotor, and a first supply unit configured to supply clean fluid for use in machining to the seal mechanism.

A linear shaft motor (1) comprising a slider (10) and a tubular magnetic shaft (30), whereas the slider (10) comprises an oblong cuboid shaped motor housing (101) having a rectangular cross-section with a longitudinal central bore (180). According to the invention the motor housing (101) comprises at least two longitudinal cooling holes (161, 162, 163, 164, 165, 166, 167, 168) which are part of an integrated fluid cooling circuit. According to the invention the at least two longitudinal cooling holes (161-168) are distributed symmetrically at a left and at a right side of the central bore (180), whereas the central axis (15) of any of the longitudinal cooling holes (161-168) lays below the topmost portion (20) of the central bore (180) and above the lowermost portion (25) of the central bore (180).

An electrochemical machining apparatus for forming turbine blades includes a main base, an upper seat and an electrode unit. The main base includes a working platform for allowing a turbine blade to be placed thereon. The working platform includes an upper step stage for resisting the turbine blade, and a lower step stage for keeping a predetermined working space from a portion of the turbine blade desired to be cut. The main base has a guiding channel for allowing an electrolyte to flow through the predetermined working space. The upper seat is configured to cover above the main base and to contact one side of the turbine blade to form an electrical connection. The electrode unit includes an anode electrode electrically connected to the upper seat and at least one cathode electrode disposed on the main base.

To provide a wire electric discharge machine which suppresses the machining speed and machining precision from declining, as well as enabling flexible handling in relation to the shapes of various workpieces, and the generation of sludge and gases which varies accompanying the progression of wire electric discharge machining. A wire electric discharge machine that performs electric discharge machining on a workpiece by causing a wire electrode and the workpiece to relatively move, includes an articulated robot, and a suction mechanism provided to a wrist leading end of the articulated robot, and suctions machining waste and gas generated by wire electric discharge machining.