Abstract: A feeding device includes a sliding member, a saddle slidably assembled with the sliding member, a driving module for moving the saddle back and forth relative to the sliding member, a main shaft positioned on the saddle, a cutter positioned with the main shaft, at least one balancing cylinder fixedly coupled with the sliding member and the saddle for balancing the main shaft. The disclosure also supplies a machine tool using the feeding device.

Abstract: A system is disclosed that accepts portable power feed drilling equipment and enables the mechanical determination of an existing hole vector and duplication of the hole on the same vector in a new production part. The system allows for extremely accurate match drilling of parts with multiple, variable hole vectors. In addition, the system is adjustable in the Z-axis, which allows infinite and precise drill tip positioning prior to drilling to increase accuracy and manage chip exit. Interchangeable drill adaptors internal to the quill sleeve allow for a wide size range of drills to be used.

Abstract: A hand-held manipulator includes a handle (4) fixedly mounted on the end of a connecting arm (2), the distal end (2b) of which carries a work unit (3). The handle (4) includes a grip section (4e) having a surface of revolution about a longitudinal handle axis (III), which is aligned with the longitudinal axis (I) of the arm. Control elements (4a-4c) are shaped in an annular structure near the distal end (4f) of the grip section (4e) so as to be accessible in any angular orientation of the hand holding the handle.

Abstract: An apparatus for reconditioning barrels, said apparatus including a means to lockingly engage a barrel in a first position, a moving means to move the locked barrel into a second position, a scanner to scan the internal surface of the locked barrel when in the second position and collect scanned data, the moving means then moving the locked barrel to a third position and a means to cut a selected depth of the internal surface of the locked barrel when in the third position according to the collected data. The moving means is a turnstile with three section enabling three barrels to be in the apparatus at any one time, so that whilst one barrel is being scanned, one is being cut and a third is being unloaded/loaded into the apparatus.

Abstract: A large machining apparatus for working a substantially planar workpiece such as a metal plate in relation to which a set of work actions, such as machining grooves and holes, is required at one of a number of work zones on or in the workpiece, the apparatus including: a working assembly such as a drop down drill movably mounted on a beam for reciprocal linear movement along a first horizontal axis extending parallel to the longitudinal axis of the workpiece; and an assembly rail movably mounted on the beam at right angles to the beam to carry the working assembly.

Abstract: A system for modifying a slot in a rotor includes a base having a vertical axis. A drill is slidingly connected to the base along the vertical axis, and a clamp is connected to the base and configured to engage with an interior surface of the slot. A method for modifying a slot in a rotor includes locating a drill proximate to the slot and inserting a clamp into the slot, wherein the clamp is slidingly connected to the drill. The method further includes engaging the clamp with an interior surface of the slot and operating the drill to create a cavity in the slot.

Abstract: Embodiments include a method and apparatus for drilling holes or cutting at specified locations on a beam or other material, even if the beam is offset from an ideal beam configuration. In some embodiments, the apparatus is configured to determine the correct locations of holes in the beam despite the beam's offset and drill holes in the beam according to this determination. The apparatus may be capable of drilling holes at specified locations on a web of an I-beam. In some embodiments, the method comprises determining the correct locations of the holes in the particular beam using the apparatus and drilling the holes in the correct locations in the beam according to that determination. Some embodiments include using one or more clamping mechanisms and one or more drilling members to determine the correct locations of the holes in the particular beam.

Abstract: An electrical discharge machining device that is used for both rotational EDM, such as tapping, and the like, and for conventional or non-rotational EDM applications. The device includes a base support to which a carriage is slidably mounted, with a motor driven, rotating electrode assembly mounted thereon. A threaded lead screw is removably coupled to the upper end of the rotating electrode assembly and a mating threaded collar is removably mounted on the support so as to receive the lead screw and thereby advance the carriage as the lead screw is rotated. The lead screw and threaded collar are interchangeable with other lead screws and collars having different thread pitches, so as to regulate the advancement of electrodes having different thread pitches. An electrode is mountable both on the rotating electrode assembly and on the carriage itself.

Abstract: The present invention relates to a reamer for hollow shafts of turbines. Particularly the invention relates to a reamer for hollow shafts, and comprises a casing provided with self-centering means for insertion into the shaft bore, a motor slidable axially inside said casing, means for moving said motor axially, a drive shaft rotated by said motor rigid therewith in its axial movements and keyed to a reaming head which is rotatable relative to said casing but axially fixed relative thereto; the invention further comprises at least one reaming tool rotated by said reamining head, and cam means for guiding said reaming tool along a curved trajector lying in a radial plane of said reaming head and operated by the axial movement of said drive shaft.

Abstract: A low cost multi-directional movement cam controlled mechanical positioning apparatus is described for automatically tracing out the path of movement for the working head of a machine tool or the like. The apparatus may be embodied in a single machine providing for three-dimensional movement of the working head with or without additional controlled movement of the working head in either pitch, roll or yaw. Alternatively, the apparatus can be employed to provide additional degrees of movement either along a z-axis and/or in either pitch, roll or yaw to the working head of a two-dimensional automatic machine tool or conventional construction. The apparatus comprises a set of at least three relatively large diameter, disk-type, control-drive cams rotatably supported on a base member for controlling movement of the working head of a machine tool or the like within a plane defined by complementary axes of movement (such as the x-y axes) and along at least one additional degree of movement.

Abstract: A cutting apparatus with a vertical drive mechanism for in place machining f a valve seat which may include an annular turntable adapted to be rotatably mounted on the valve above the valve seat. A feed shaft is mounted through the turntable so as to be rotatable therewith, and a bottom of the feed shaft is adapted to receive a cutter for machining the valve seat. The vertical drive mechanism is mounted on the feed shaft and includes a nut threaded in the feed shaft and a gear combination. The gear combination may include a first portion which is fixedly connected to the nut, a second portion which operatively engages the first gear portion, and a third portion which operatively engages the second gear portion, the third gear portion being mounted for rotatable slidable friction engagement about the nut.

Abstract: The invention relates to a threading tool for internal threads with a cutter holder which is displaceably mounted on a cutter holder carrier shaft co-axial to the main axis of the rotatable tool which coincides with the thread axis during the cutting process, whereby the said cutter holder shaft is moved forwards and backwards periodically with the forward feed corresponding to the thread pitch in the direction of the main axis in the thread chasing operation by a cam control with a camshaft co-axial to the cutter holder shaft and rotating with a differential speed relative thereto, whereby through a corresponding radial displacement of the cutter holder the cutter is raised during return travel and in the thread chasing operation is set to engage lower and lower from one thread chasing operation to the next up to the final cutting depth.

Abstract: This invention comprises a control for moving a headstock longitudinally on a radial arm of a radial drilling machine and for moving the radial arm angularly about the axis of rotation, by moving the headstock a predetermined distance along an X--X axis and also moving said headstock a predetermined distance along a Y--Y axis at right angles to the X--X axis, for bringing the axis of the drill spindle on the headstock from one drilling position to another drilling position. One Servo motor moves the headstock on the X--X axis and another motor moves it on the Y--Y axis. The motors may be programmed to move said headstock automatically. When the headstock is moved on the radial arm along the Y--Y axis, angular movement of the radial arm is accompanied by movement of the headstock longitudinally of the radial arm. Thus, the movement of the headstock along X--X and Y--Y axes, also moves the radial arm angularly.