Abstract: A rotary indexing table for use with a milling machine which has a reduced height and includes a base plate, a top plate, bearing means for mounting the top plate for rotation, means for clamping the top plate to prevent its rotation, a rotary union for transmitting hydraulic pressure to the top of the top plate to accommodate fixtures mounted on the top plate, an air chamber under the top plate so that the top plate rotates freely when air pressure is held in the chamber and indexing means to locate preselected positions of the top plate.

Abstract: A tool turret according to the invention comprises a turret head which is shiftable between a rotational position and a working position, drive means adapted to rotate the turret head in the rotational position and being in permanent engagement with the turret head, fixation means for locking the turret head in the working position, and a transducer sensing the position of the turret head.The turret head is rotatable with respect to a non-rotary body which is axially displaceable with the turret head and which has a circumferential projection serving as a piston and being mounted axially displaceable in an annular recess serving as a cylinder and formed in a seat, receiving the body, of a member supporting the body. The projection and the annular recess cooperate with each other to ensure axial displacement of the body with the turret head between the rotational position and the working position.

Abstract: A precision rotary indexing fixture is disclosed of the type including a top plate adapted to have work pieces mounted thereon with the work plate indexed to any of a plurality of precision rotary positions. The precision locking of the top plate is achieved by serrated coupling rings, one mounted on the outer periphery of the top plate, the other mating ring mounted on a base structure. The top plate is locked in various index positions by the application of disc spring sets acting on the top plate through an annular piston and a set of bearing elements mounted in opposed grooves in the piston and a race ring mounted to the top plate. The fluid forces acting on the piston acts to release the locking pressure exerted by the disc spring sets and release the coupling serration engagement during indexing of the top plate.

Abstract: An indexing table assembly adapted to be mounted on a machine tool or other industrial machine, comprising first and second screw elements coaxially engaged with each other and mounted for movement along their axes, mechanism for moving said first screw element along its axis, a turntable connected to said second screw element and movable therewith, mechanism preventing said second screw element from being moved beyond a predetermined range, said mechanism for moving said first screw element comprising a cylindrical piston directly connected to said first screw element, a circular fluid chamber in which said cylindrical piston is mounted for movement, said cylindrical piston separating said chamber into first and second chambers, a source of pressurized fluid, a control valve for controlling the flow of pressurized fluid into either said first chamber or said second chamber with the result that when the pressurized fluid flows into said second chamber the first screw element is moved positively in one directi

Abstract: An automatic turret lathe in which sequences are manually programmed for automatic control (both turret and cross slide) as an incident to setting up the machine, requiring neither tape nor card programs but rather the manual effort of the machinist; the lathe also incorporates a unique clutch and bearing support for the rotary turret, and the turret has a positive lock for accurately holding the index position; all essential functions and modes including feed rates and r.p.m. are visually displayed.

Abstract: In a co-ordinate measuring machine a probe is connected to the head of the machine by a pivotal arm, and the orientation of the probe is charged by moving the head so that the arm engages a fixed structure and a moment is applied to the arm which is thereby caused to turn and present the probe in the required orientation.

Abstract: A turret head for a lathe has an axis about which it can be rotated, the axis being in use inclined at about 45.degree. to the axis of a spindle of the lathe. The head has a plurality of pairs of tool mounting surfaces, the pairs being spaced around the axis of the turrent head. The surfaces of each pair are substantially mutually perpendicular, and arranged so that one is perpendicular to the axis of the spindle, and the other parallel thereto, when the pair is brought to a working location by indexing the turret head about its axis.

Abstract: A turret index assembly has an air piston connected to a pawl to provide a cushioned stop therefor after its engagement with one of the teeth of a machine tool turret index plate.

Abstract: Apparatus for performing machining operations on a workpiece or detail at different angles, comprising a rotatable table having a plurality of locating holes preferably spaced at one degree intervals about its periphery, two indexing pins insertable in the holes, and two indexing blocks having prongs provided with abutment surfaces in positions to be contacted by the pins. The table normally rests upon pads during a machining operation. To rotate the table to a new position, the table is lifted from the pads by a manually operable lifting mechanism. Anti-friction rollers support the table when raised to facilitate rotation.

Abstract: An automatic turret for a lathe and the like comprises a fixed base, a control screw mounted to be rotatable and axially non-displaceable, a nut connected to a tool-carrying body, two basic toothed crowns and at least one latch for arresting the tool-carrying body.

Abstract: A cylindrical tool holder is mounted on a a housing containing a motor, the output shaft of which is coupled through a gear train to a driving ring. One axial face of the driving ring has cam surfaces engageable with cooperating cam surfaces on an axial face of an axially movable locking ring which is spring-urged toward the driving ring. The other axial face of the locking ring has axially facing gear-like teeth which are engageable with mating teeth on a flange formed on the housing and on a ring attached to the tool holder. A lock bolt mounted in the housing and operated by an electromagnet is withdrawn from a ring coupled to the tool holder to permit rotation to a new position and is extended to lock the holder near the new position.

Abstract: An index apparatus for indexing a rotary table rotatably and vertically slidably received within a base, comprises a pair of coupling members secured to the rotary table and the base, respectively, and engageable with each other. The rotary table is lifted and lowered by a hydraulic actuator. The rotary table is rotated by a drive means including a drive motor. Generating means are provided to generate a signal each time the rotary table is rotated a unit angle. Control means are provided to reduce the rotational speed of the rotary table in response to the number of signals generated from the generating means, when the rotary table is rotated to a position spaced a predetermined angular distance from a desired angular position thereof. Control means also cause the rotation of the rotary table to stop in response to the number of signals from the generating means, when the rotary table is rotated to the desired angular position thereof.

Abstract: A workpiece holder for a vertical broaching machine for broading annular workpieces is particularly useful for simultaneous broaching of two ball-bearing races in the rings of homokinetic joints. A workpiece support, rotatable relative to a baseplate about a common axis and accepting the workpiece coaxially by means of a tightening device, is nonrotatably connected to a double-ended piston which can be subjected to the action of pressure-oil, the piston being guided rotatably and axially displaceably between two end positions in a cylinder. Complementary set of teeth are provided at one end of the piston and on a facing surface, nonrotatably connected to the baseplate, these teeth being in mesh when the piston is in the first end position, thus centering the piston and holding it in a nonrotational manner.

Abstract: The invention provides a device for use in the field of machine tools which includes a turret mounted rotatably on a turret-head, several equidistant tool-holders integral with the turret and provided with centering means receiving a centering pin, and centering means housed in the turret-head both to center a tool-holder in its operating position and to lock the turret in an angular position corresponding to said operating position.

Abstract: An indexing mechanism in which a workpiece to be machined by a tool is attachable to the end of a rotatable spindle that is driven by the reversible motor of a servomechanism to assume a desired angular position. Mounted on the spindle and rotatable therewith is one gear of a multiple-tooth face gear coupling pair, the second gear of which is axially advanced by a motor along the spindle into and out of meshing engagement with the first gear. The second gear is non-rotatable and acts, when in mesh with the first gear, to prevent rotation of the spindle and thereby lock the angular position of the workpiece.

Abstract: A change-speed gearbox has coaxial input and output shafts. Five intermediate shafts are equi-spaced around the input shaft and each has two gears fixed thereto, one of which meshes with a common gear on the input shaft, the intermediate shafts being movable axially.Five gears of different diameters are fixed to the output shaft around which five secondary shafts are carried by a rotatable cage. The five secondary shafts each have two gears fixed thereto, one of which meshes with a different one of the gears on the output shaft.Any one of a possible twenty five gear ratios between the input and output shafts may be obtained by rotating the cage until a selected one of the secondary shafts is in the same radial plane as a selected one of the intermediate shafts, that intermediate shaft then being moved axially to bring the second gear thereon into mesh with the second gear on the selected secondary shaft.

Abstract: The invention relates to a machine tool of the type having a rotatable support for the material to be worked upon and a slide movable toward the work carrying a programmed turret with a plurality of tool supports which may be indexed to position one tool at a time for operation on the work and more particularly to mounting of the tool turret for indexing with torsional stiffness and for recessing of the work radially of its axis of rotation by a hydraulic means while maintaining torsional stiffness.

Abstract: An economical rotary index table holds workpieces on machine tool beds and tables, changing rotational position in angular increments with precision. Accurate angular indexing is achieved by a curvic coupling with meshing radial teeth disengageably connecting an axially movable locking plate to the juxtaposed facing rotational worktable member, separate and apart from the drive system. An annular, axially expansible pneumatic chamber is employed to engage and disengage the curvic coupling teeth, alternately locking the worktable in the desired angular orientation, and unlocking it for angular indexing movement. In the preferred embodiment, the movable angular indexing apparatus of the present invention incorporates automatic counting means for precisely determining the degree of rotation and automatic stop means for preventing further rotation when the desired position has been reached.

Abstract: An indexing table for machine tools having a stationary table portion and a movable table portion arranged for rotatable movement relative to the stationary table portion. Coupling elements are disposed between the stationary and movable table portions for controlling rotational movement therebetween and thus movement between the respective indexing positions of the table.

Abstract: An apparatus for precisely indexing the orientation of a portion of a device with respect to a rigid support structure of the device by locking the portion of the device, at a digitally set angle with respect to a reference lever, and thereafter detecting the deviation of the reference lever from an initially set position utilizing a motion amplifying device in combination with a relative position measuring means.

Abstract: A vertical support shaft supporting a tool support is slidably and rotatably supported in a base. A gear member is rotatably but non-slidably mounted on the support shaft and is provided with a threaded portion threadedly engaged with the base. A sleeve member having a rack engaging with the gear member is moved axially to lift the tool support to an upper position for an index operation. The sleeve member is provided with a notch to receive a resiliently urged lock shaft for restraining the axial movement of the sleeve member when the tool support is moved to the upper position.

Abstract: This disclosure includes a die for forming metal piece parts and includes two progressive die sections which partially form metal piece parts and transfer same to a rotary die section which nest the parts and rotates same through a series of work stations for finishing operations.

Abstract: In a tool-indexing apparatus, the apparatus comprises a member being moved in a linear direction, one set of ball screws which connects between the member and a tool-post, a stopper which restricts the linear movement of the tool-post, and two coil springs which resist against the linear movement of the tool-post and the member. During the operation of the apparatus, first, the member together with the tool-post are lifted, and after the tool-post has become abutted against the stopper via one of the two coil springs, the tool-post is revolved by means of one set of ball screws and by the other one of the coil springs for establishing the tool-indexing operation of the apparatus.

Abstract: A precision heavy duty indexer characterized in that the indexing member thereof is positively locked to the indexer housing in desired precise axial, radial and angular indexed position by interengaged gear means of said indexing member and said housing, and is unlocked for indexing movement by disengaging said gear means, the gear means of said housing being carried by the outer peripheral portion of a laterally flexible pneumatic or hydraulically-actuated diaphragm having its inner peripheral portion fixed to the housing.

Abstract: Testing of integrated circuit components of the silicon wafer type for grading purposes is accomplished by supporting the wafer matrix on a platform type work table which is indexed in an x-y coordinate fashion, with the work table being moved vertically to a test position such that the test probes make contact with a precise predetermined position corresponding to the precise location of that portion of the integrated circuit to be tested. The work table is movable vertically with reference to a predetermined axis and rotatable with respect thereto such that the surface of the table remains perpendicular to the reference axis. The chuck assembly for moving the table includes a housing having a bore whose center forms the axis, with a chuck plate mounted for sliding movement in the bore. The end of the chuck plate is in the form of a flanged spool which receives bearing-eccentric assembly for effecting vertical movement while permitting rotation of the spool and the attached chuck plate.

Abstract: The invention relates to a transmission for driving a movable element, particularly a component in a machine tool, at high speed or creep speed, in the form of a divided drive having one branch for the transmission of high speed and one branch for the transmission of creep speed and at least one member in one of the two branches being locked when creep speed is selected. The invention provides that for high speed and creep speed a pulse motor is provided and that for compensating the error in the actual position of the movable element from its required position an adjusting clutch is provided.

Abstract: A frequency selector comprising a first control member for frequency preselection changing and a second control member for changing the preselection frequency. The control members are coupled such that unintended changing of the preselection frequency by touching the second control member is prevented.

Abstract: The invention provides automatic positioning of a tool carrier in a turret for machine tools. The turret comprises a support mounted on a base for rotation and against axial displacement and a tool carrier mounted on the support for rotation therewith. The tool carrier has a guide in alignment with an annular track on the base. A pair of coaxial rings of teeth on the base and the tool carrier are arranged for meshing engagement to locate the tool carrier on the base in a working position, and a bolt is glidably mounted in the guide and is displaceable along the track upon rotation of the tool carrier. The track has a plurality of recesseseach adapted to receive a projecting end of the bolt for locking the tool carrier in position.

Abstract: A cutting tool comprises a cutter assembly including a cutting implement having a cutting surface and a shank extending longitudinally from the cutting implement. The shank is received in a bore in a housing assembly and is longitudinally extendable and retractable therein. Guide surfaces interengageable between the cutter assembly and the housing assembly automatically rotate the cutter assembly upon extension and retraction of the shank in the housing bore to change the position of the cutting surface.

Abstract: A unique index mechanism for positioning an indexable machine tool member wherein a first toothed coupling is fixed to a machine tool base member, and a second relatively movable, toothed coupling having a uniformly spaced number of teeth unequal to the first uniformly spaced coupling teeth is located concentric to the first coupling on the machine tool base. The indexable machine tool member is carried by the second movable coupling, and a third toothed coupling with teeth disposed toward the first and second couplings is rotatably mounted to the machine tool in such fashion that the third coupling may be powered into and out of meshing engagement with the first and second couplings.The second coupling which carries the indexable machine tool member may be indexed to discrete angular increments corresponding to the angular difference in the tooth spacing of the respective first and second couplings.

Abstract: A machine tool having relatively rotatable elements joined by a toothed coupling.

Abstract: An automatic tool turret for a lathe including a base adapted to be detachably secured to the lathe way. A tool carrying head is mounted on the base for movement between a clutched work performing position and unclutched head rotating position. The movement is hydraulically accomplished so that the head is supported by a hydrostatic bearing created by the hydraulic fluid. The fluid pressures generated during the movement of the head between its clutched and unclutched positions is used to initiate a work performing operation and to initiate turning of the head.

Abstract: A precision heavy duty indexer characterized in that the indexing member is hydraulically actuated to a locking position whereat it is locked to the indexer housing in desired precise indexed position without circumferential or radial play and without transmission of torque load to the indexer drive means or without transmission of radial load to the indexing member-housing bearings; and is hydraulically actuated to unlocking position whereat it is released from said housing for indexing movement and whereat it is engaged by said drive means operative to index the indexing member to the next indexed position. The indexer herein is further characterized in that the indexer drive means comprises a hydraulic motor driven worm which meshes with a worm wheel having driving engagement with said indexing member, said worm having a sensor-counter thereon to de-energize said hydraulic motor when the indexing member has been indexed through a predetermined angle from one indexed position to the next.