Abstract: A machine tool for machining contains a tool attachment (9) to which a tool holder (7) for a lathe shaft (10) can be secured. The shaft (10) is mechanically secured in the tool holder (7), which means that vibrations occur when long shafts (10) are used. The invention reduces any vibration by arranging a tubular cavity (4) inside the wall surrounding the shaft (10) in the holder, and filling said cavity with a medium which is subjected to pressure so that the tool (10) is clamped with a force greater than that which can be achieved by mechanical means.

Abstract: Improved machining of various materials is disclosed by means of a material cutting insert having an internal fluid passageway which discharges a high velocity fluid jet stream in a particular manner. An improved method for use of the cutting insert is also disclosed along with apparatus employing the improvement.

Abstract: An apparatus for precisely locating a workpiece along a Y-axis of a milling machine worktable includes a fixture body having a generally rectangular cross section and at least one generally planar reference surface. The body has three longitudinally spaced apart apertures formed therethrough for retaining bolts. A nut threadably engages the center bolt and cooperates with an inverted T-shaped slot formed in the workpiece supporting surface of the worktable to clamp the body to the table. The body has a pair of spaced apart channels formed therein each with a longitudinal axis generally perpendicular to a longitudinal axis of the body, the channels being located at associated ones of the other two apertures. A foot having a pedestal portion is located in each channel for engaging a corresponding slot formed in the worktable. The feet are formed with a width corresponding to a width of an opening of the slot in which they are located.

Abstract: The present invention is a tool holder for receiving an endmill or similar tool. The tool holder includes a shank portion adapted to fit into the spindle of a machine, and a closed end collet integrally formed with the shank portion. The collet includes an axial bore for receiving the tool and a plurality of resilient collet segments for gripping the tool. The collet segments are separated by a plurality of axially extending slots which terminate inwardly from the forward end of a collet. A continuous tie ring extends around the forward end of a collet and joins the plurality of collet segments together. The continuous tie ring provides for increased radial stiffness at the forward end of the collet which improves accuracy and repeatability of tool location. A lock nut threads onto the collet to collapse the collet segments radially inwardly to grip the tool.

Abstract: An apparatus for engraving images has an engraving table driving apparatus for making a sliding table, on which table a card on which an image is to be engraved is fixedly mounted, reciprocate from side to side; and engraving machine for performing engraving on the card by making a cutter head, disposed oppositely facing the card on the sliding table, move vertically; a base, integrally mounted with the engraving machine, which reciprocates back and forth; a belt placed in such a manner as to be movable back and forth on the top surface of the base; and a lever, rotatably mounted in a vertical direction on the base, by means of which the belt is mounted in a fastened state in the end section of the base. The operation for feeding the card to the starting point and returning them can be accomplished rapidly, and therefore the time required to engrave the card can be shortened considerably.

Abstract: In machining a substrate surface of a photoreceptor by the use of a cutting machine which supplies cutting lubricant from a reservoir to a cutting tool of the cutting machine, the method comprises a measurement of a cutting tool temperature by a sensor and a control of both the temperature of cutting lubricant and a flow rate thereof. The control is responsive to the cutting tool temperature and suppresses a temperature fluctuation of the cutting tool.

Abstract: For changing the tool disk connected detachably and rotatably to the housing of a tool turret, a work-locating fixture is provided. The tool disk can be moved out of its work setting in which it is coupled with the drive shaft for rotation by a rotary drive. The tool disk movement is in the axial direction of the drive shaft away from the housing until the tool disk reaches transfer position. The drive shaft and a tie rod coupled to the drive shaft are then rotated by the rotary drive out of a connected setting into a detached setting. In the detached setting, the connection between the tie rod, which tie rod is slidable in its axial position relative to the housing and the tool disk, is disconnected, so that the tie rod can then be lifted out of the tool disk.

Abstract: A part feeding apparatus is adapted to hold a part (10) on a holding portion (12) at the front end of a feed rod (11) and feed it to an intended place. A locking portion (14) at the end of a feed tube (7) is disposed in opposed relation to the holding portion (12). The apparatus includes an operating rod (20) adapted to move into the locking portion (14) to transfer a part (10) from the locking portion (14) to the holding portion (12), and the part once positioned at the locking portion (14) is moved to the holding portion (12). Further, a magnet (23) for attracting the part is retractably installed adjacent the holding portion (12) at the front end of the feed rod (11).

Abstract: A system for manufacturing wire harness assemblies is provided. Each wire harness includes a shielded cable having a plurality of insulated conductors therein, with each conductor being terminated at its respective opposed ends and with the terminated ends being mounted in connector housings. The system includes a plurality of pallets that are movable along a conveyor to work stations at which various assembly steps are carried out. A first station is provided for mounting the cables to the pallet, such that the wires at the opposed ends are mounted in fixtures. A second station may selectively deposit drop wires into fixtures on the pallets. A third station trims and strips the ends of the wires and aligns the drop wires with the cable wires. A fourth station sequentially crimps terminals to the ends of the wires, with the pallet being indexable between successive crimps.

Abstract: A segmented broach bar for machining axially separated coaxial bearing bores contained within a component for an internal combustion engine includes axially separated pilot segments and axially separated broaching segments, with at least one of the pilot segments being positioned between a pair of broaching segments. A broach bar has a lead end which first engages the bearing bores, with the broaching and pilot segments having diameters which are sized progressively greater as the distance from the lead end increases, with the broach and pilot segments being sized such that each broach segment produces a bore diameter accommodating the immediately following pilot segment.

Abstract: In a workpiece support for use with a laser beam machine tool, in which the workpiece is rotated about an axis tiltable through 90.degree. or more to either side of a vertical condition, the workpiece is held by a chuck driven through a right-angle speed reducer by a servomotor. The chuck, reducer and motor are all supported on a shaft rotatably mounted in bearings on a frame. The shaft is coupled to a disc having angle markings and lockable at discrete rotational positions on the frame. Fine adjustment of the rotational position of the shaft relative to the disc is effected by engagement of an offset protrusion on the end of the shaft by a screw-shifted operating member on the disc. Two such operating members are provided in opposed relationship on opposite sides of the protrusion so that they can be used to lock the shaft and disc securely together.

Abstract: A plurality of pallets for exchanging and fixing workpieces are placed on a plurality of respective tables supported vertically with spacing between one another, and the tables are rotated to transfer a required pallet to the predetermined exchange position to perform an exchange operation of the pallet by a pallet exchange device.

Abstract: An improvement to an air logic circuit for an airfeed peck drill includes the insertion of an advance valve into the timer circuit. This advance valve generates a signal to actuate the timer circuit only after the drill quill has fed forward through rapid advance.

Abstract: An improved combination mill-lathe type machine tool including a work piece carrier carrying an elongate work piece on a turning axis; an elongate rotatable cutting tool carrier with an inner end and rotatably carrying a cutting tool on a rotating axis; and, an adjustable device to move the cutting tool carrier and tool into working position relative to the work piece and to feed the tool longitudinally thereof; said device includes a compound table with a plate movable on a plane along axes parallel with and normal to said turning axis, a first L-shaped pivot mount with a base pivotally mounted on the plate on a first swivel axis normal to the plate and with a leg spaced radially from and parallel with said first swivel axis, a second L-shaped pivot mount with a first arm parallel with and rotatably carried by said leg on a second swivel axis that is normal to and intersects the first swivel axis, and, a second arm carrying the cutting tool carrier with its inner end disposed toward the point of intersection

Abstract: A centering device in a machine tool having a chuck for clamping a work includes a clamp device for clamping and centering the work at a different position with respect to the chuck. The clamp device has an actuator driven by a pressure medium and a holder operable by the actuator for clamping the work with a pressure corresponding to the pressure of the pressure medium and for releasing the work. A control device is provided for controlling the pressure of the pressure medium to a value which is appropriate to center the work by the clamp device and which is previously determined according to a diameter of the work to be clamped.

Abstract: The riveter of the invention comprises a shaft, a rolling nut, a jaw mechanism, a head frame, a rotary drive shaft, a clutch mechanism disengageably coupling the rolling nut with the rotary drive shaft, a generally cylindrical journal frame and a cylindrical main frame. After a blind rivet having a drill point is inserted into a nose piece of this riveter, the main frame and rotary drive shaft are rotated in a suitable manner, whereby the desired drilling of the rivet hole and riveting operation can be accomplished. The riveter may alternatively comprise a shaft, a rolling nut, a jaw mechanism, a head frame, a rotary drive shaft, a rear clutch mechanism disengageably coupling the rolling nut with the rotary drive shaft, a generally cylindrical journal frame, a cylindrical main frame, a front cover, a rear cover and a forward clutch mechanism.

Abstract: The generator for plastic lenses comprises a rotatable chuck for rotating an optical lens blank on a first axis. A drive system displaces the chuck and thereby the lens blank generally transverse to the first axis. A cutter is operably associatable with the chuck for engaging the lens blank and causing shaping thereof. The cutter includes a high speed rotary element rotatable on a second axis angularly disposed relative to the first axis. A second drive system for selectively displacing the cutter parallel to the first axis is provided. A computer control is operably associated with the first and second drive systems for coordinating displacement of the associated chuck and cutter for causing a selected curvature to be generated on the blank.

Abstract: A quick setting and release machine tool post having a body block structure forming a pair or partial dove tail tool mounts externally thereof. The body block also forms a pair of expander receptacles each receiving a dove tail expander element in movable assembly therewith. A rotary actuator located within an actuator receptacle defined by the body block forms oppositely directed intersecting eccentric cam surfaces that are disposed for driving engagement with respective dove tail expander elements depending upon the direction of rotation of the actuator element. The dove tail expander elements are selectively linearly movable to establish tight locking engagement within the dove tail receptacles of tool holders and are retractable to release the tool holders for replacement or repositioning. The design and operational characteristics of the tool post mechanism minimizes wear of component parts and promotes long service life.

Abstract: A headstock cooling system for a machine tool comprising a base having a top, bottom and a first fluid passageway extending centrally therethrough from the top to the bottom. A bed is mounted on the base top and provided with a second fluid passageway extending coaxially from the first fluid passageway and in fluid communication therewith. A headstock is mounted on the bed and is positioned coaxial with and directly above the second fluid passageway and includes means for communication with the second fluid passageway for directing a cooling fluid from the second fluid passageway out of the headstock thereby cooling the headstock over at least a substantial portion of the headstock.

Abstract: A cutting tool having a main body with a longitudinal axis and one or more slide receiving slots. A cutter carrying slide is slidably received within the slide receiving slot in the body for sliding movement relative to the body along a first slide path extending generally normal to the longitudinal axis. A slide positioning member is provided for shifting the cutter carrying slide along the slide path between a retracted position and a cutting position. An anti-backlash device is also provided for establishing and maintaining firm contact between opposing surfaces of the slide and the slide positioning member during movement of the slide toward the cutting position. The anti-backlash device increases force urging the opposing surfaces into contact with each other as radial displacement increases between the slide and an axis of rotation.