Abstract: Apparatus for the machining of bar material, profiles and the like comprises a rotation mechanism with a rotational drive. The rotation mechanism has a workpiece holder which holds the workpiece, and the said workpiece holder rotates about an axis parallel to the longitudinal axis of the workpiece.

Abstract: A universal combined milling and boring machine having a machine column, a compound slide that can traverse horizontally on the machine column, a spindle head mounted on the compound slide so that it can traverse vertically, with a work spindle, a rotary table mounted so it can pivot over a supporting console on the machine column and a control unit. Multiaxial machining with relatively inexpensive control technology and a control system with optimum visual contact with the machining site are made possible according to this invention due to the fact that the supporting console is mounted on the machine column so it can rotate about a horizontal swivel axis. The swivel axis is offset laterally relative to the central axis of the combined milling and boring machine; the rotary table is mounted centrally on the console so it can rotate about an axis of rotation normal to the swivel axis; and the control unit includes a portable control console.

Abstract: The invention concerns a drive assembly for relative movement of two components of a machine tool with a drive motor and a gear arrangement with two gear trains that can be put under tension relative to each other and have output gears that mesh with opposing teeth, where each gear train has a compact gear with a high transmission ratio with at least one control element for applying tension to the two gear trains. A high positioning accuracy and torsional rigidity combined with a small size when installed are made possible according to this invention by the fact that the compact gear.

Abstract: The present invention is embodied in a reconfigurable gantry tool and a reconfigurable tool system. The reconfigurable tool includes a platform, a reconfigurable holding mechanism, a gantry frame, a multi-axis numerically controlled robotic tool, a multi-movement control device coupled to the mobile multi-axis tool, and a rotatable and translatable sine plate. The reconfigurable gantry tool system comprises a plurality of reconfigurable gantry tools strategically coupled to one another to form a non-matrix assembly line. Other tooling systems can be coupled to and/or within the reconfigurable gantry tool system for performing additional operations.

Abstract: An improved method of moving a rotary fixture (20) from a first angular position to a second angular position includes the steps of: providing a body (25); mounting the fixture on the body for rotational movement about an axis (x--x); mounting a pin (23) in the spindle (22) of a machine tool; moving the pin so as to engage the fixture at a location eccentric to the axis; and selectively moving the pin relative to the axis from one location to another; thereby to rotate the fixture from the first angular position to the second angular position.

Abstract: A system for machining work pieces includes an assembly stand (1) for holding a work piece (6) and carrying the work piece to successive machining stations, and includes an assembly device or machining station (101) that holds a machining tool and receives the work piece to carry out a machining operation. The assembly stand includes a work piece receiving apparatus (3) mounted on a pallet (2) that has sliding and fixing elements (11) mounted on its underside. Each element (11) includes a bell-shaped flexible suction cup member (13). When pressurized air is applied to the suction cup members, the assembly stand floats on a cushion of air so that it can be easily moved. When vacuum is applied to the suction cup members, the assembly stand is firmly fixed in position on a work table.

Abstract: A system for the manufacture of a CO.sub.2 powered dragster with a low-cost three axis machine tool, the system including an expansion base to be fixedly secured to a support surface of the machine tool, and an indexing fixture to be adjustably secured to the expansion base. The indexing fixture has a generally elongate indexing plate which slides within the expansion base and is secured in one of at least two linear indexing positions, thereby positioning a portion of a material block from which a chassis of the dragster is made within a range of linear motion of the spindle, while a remaining portion of the material block is maintained aligned for subsequent positioning with the range of linear motion of the spindle, a rear end housing secured to a rear end of the indexing plate, and a front end housing secured a front end of the indexing plate.

Abstract: A machine tool more particularly for drilling and milling, possesses a machine bed, on which a power driven longitudinal slide is adapted to run horizontally on rails. A machining head having a rotary drive device for at least one table forming part of said head, is power moved on the longitudinal slide in at least one further direction of movement. The machine bed possesses two spaced lateral walls, whose intermediate space is designed to serve as a machining zone for receiving at least one work holding means. On the two lateral walls two parallel guide rails are arranged for the longitudinal slide, a third guide rail being arranged with an offset in the longitudinal direction between the two other guide rails. The longitudinal slide is guided using three guide elements on the three guide rails, the power drive being at or adjacent to the central guide rail. On this arrangement a clamping yoke of relatively light design may be employed, which only requires one central drive.

Abstract: A machine tool has a rotatable table with a plurality of lock plates located on the underside thereof at circumferentially spaced locations, and a geneva drive mechanism arranged to coact with the lock plates in rotatably indexing the table. The lock plates are shiftable with respect to the table by means of cooperating pairs of rotatably adjustable eccentric pins. Machine screws releasably fix the lock plates at selected positions of adjustment. The lock plates are shifted and releasably fixed from above the table.

Abstract: A modular multi-fixturing system for a machine tool comprises an elongate core (22) for mounting on a rotary axis of the machine with its longitudinal axis aligned with the rotary axis, and a plurality of workpiece-providing cassettes (24) mounted on the periphery of the core. The core has three flat surfaces on its periphery onto which the cassettes are clamped by fixed and moveable clamping plates (36, 34) which extend along the whole length of the core. The clamping plates define with the flat surfaces axial vee grooves with which corresponding vee surfaces on the cassettes can be engaged by axial movement of the cassettes. The cassettes may carry workpieces and be re-used or may themselves constitute workpieces and be sacrificial.

Abstract: A fixture arrangement for supporting a plurality of different sizes of workpieces on a table relative to a metal working tool includes an equalizing device, a stop arrangement and a clamping device. The equalizing device positions the workpiece longitudinally on the table, the stop arrangement determines the longitudinal position of the workpiece on the table, and the clamping device secures the workpiece to the table. A guide arrangement guides movement of the equalizing device on the table along the transverse path and a latch device selectively maintains the equalizing device from guided transverse movement. The stop arrangement is connected to an elongated frame of the equalizing device, movable transversely with the equalizing device, and adjustable relative to the elongated frame in the transverse directions. The fixture arrangement is particularly suited for use on a metal working machine.

Abstract: A work rotating device for use with a laser beam machine tool comprises an L-shaped frame from which a servo motor, speed reducer, and a rotatable work holder are supported in cantilever fashion by a shaft rotatable in bearings provided in a hole in the frame. The shaft has an end plate haivng a spring-loaded indexing pin engageable with any selected one of several indexing holes in an indexing plate fixed to the frame. The angle of inclination of the axis of rotation of the work is read from a scale on the end plate, by means of an indexing mark on the indexing plate. The indexing plate and end plate exert axial pressure respectively on outer and inner rings of the bearings to eliminate play.

Abstract: An articulated axis workslide assembly having a bridge plate with an upper surface and first and second bridge keyways. The bridge keyways are oriented precisely parallel to one another and a first longitudinal axis, and first and second bridge keys are slidably mounted in respective bridge keyways for reciprocation parallel to the first axis. There is a combination swivel/slide member having a lower surface, a slide keyway and a pivot hole, and a slide key is slidably mounted in the slide keyway. The swivel/slide is slidably and pivotally connected and supported with its lower surface facing the upper surface of the bridge member along a single interface plane. Such connection is preferably provided in part through pivotal connection of the slide key to the first bridge key, and through the slide pivot hole to the second bridge key.

Abstract: A carving jig (10) is provided with a base (11) having a bearing (17) in which a projecting spindle (18) is journalled for rotation, the spindle having facilities to allow a workpiece (24) to be attached, either directly or through the provision of an intermediate chuck (23), the jig also having a flat mounting surface (12, 13), which is normal to the axis of spindle (18) rotation, and the spindle (18) having an indexing disc (26) attached to it, so that it can be rotated in increments, but restrained against rotation during carving.

Abstract: A device serves for producing mounting bores or valve bores in a wheel disk and/or a rim of a wheel of a motor vehicle. The bores are at least partly inclined relative to a center axis of the wheel. A fixture serves for mounting the wheel. A motor-operated tool is used for producing the bores.In order to achieve minimum machining times, means are provided for pivoting the said holding fixture, with the said wheel mounted therein, relative to a work table about an axis extending at a certain inclination relative to the center axis of the said wheel.

Abstract: A workpiece positioning fixture for use in a multiple axis machining center having a pallet and a tool holder, and being capable of changing the relative positions of the pallet and tool holder along X, Y and Z linear axes and along a B rotational axes, includes a base, a workpiece holder, and a structure for rotating the workpiece holder in response to circular interpretation of the tool holder with respect to the base. When the workpiece holder reaches its desired angular orientation, a locking pin is used to prevent rotation of the workpiece during the machining operation.

Abstract: The spindle of a machine-tool is mounted on a carriage movable along a horizontal transverse member which is carried by the columns of a part of the frame of the machine having the shape of a closed porch, and which is situated in front of these columns. This transverse member moves vertically along the columns. The workpiece-carrying table, which can rotate on itself, is mounted on a carriage movable in a direction parallel to the spindle axis on a portion of the frame situated in front of the porch. Thus, the machine is compact and, whatever the extreme positions of its movable elements might be, no cantilever condition is produced which could generate machine deformations.

Abstract: These as well as other objects are accomplished by an improvement to a computer numerically controlled apparatus wherein there is provided a vertically oriented workholder including means for guiding the workholder into and out of the enclosure of a computer numerically controlled apparatus. The workholder includes means for holding a plurality of shafts in a vertical orientation to permit the plurality of shafts to be machined within the computer numerically controlled apparatus with only one loading and unloading of the apparatus.

Abstract: An apparatus for cutting peripheral teeth in a pattern wheel blank for use as a pattern wheel on a textile knitting machine includes a base on which a driven cutting blade is affixed and on which a carriage is reciprocable toward and away from the cutting blade. The pattern wheel blank is mounted on the carriage for movement therewith into and out of cutting engagement with the blade and is incrementally indexable for cutting engagement therewith at plural locations about the pattern wheel blank periphery. Electrical control circuitry enables the extent of each reciprocal movement of the carriage to be selectively varied to either permit or prevent cutting engagement between the pattern wheel blank and the cutting blade at each peripheral location on the pattern wheel blank.

Abstract: Rotary-pallet system, in particular for multi-directional machining of the pieces (8) to be machined. In the said system there is a body piece (2), one of whose ends (A) is attached to a holder, which said body piece is rotable around a longitudinal axis (A-B), and against whose longitudinal guide faces one or several pieces (8) to be machined can be positioned. One or several wedge pieces (3) can be attached to the edge of the guide face on the body (2), the wedge face on the said wedge piece being pressed towards a side of the piece (8) to be machined. A counter-face (4, 13) is provided at the opposite side of the piece to be machined. The wedge piece (3) can be attached to the body (2) by means of a fastening member (1), which is directed in such a way diagonally that the direction of the fastening movement of the wedge piece approaches both the body (2) and the piece (8) to be machined at the same time.

Abstract: An index table utilizing eccentric pins for the accurate alignment thereof, and a method of alignment using a laser tarnsmitter/receiver and optical prism.

Abstract: A method and apparatus for determining the angular position of a workpiece and for positioning the same relative to at least one tool. The workpiece has at least one set of teeth. Pulses are derived from a rotating reference workpiece and from a reference shaft which has a known gear ratio with the reference workpiece, and consequently also turns. A first phase measurement is undertaken between the pulses, the result of which is stored as the reference value. The reference workpiece is replaced with a workpiece which is to be machined and which is provided with teeth. A second phase measurement between the pulses of the refernece shaft and of the reference workpiece are undertaken in a second measuring operation. The reference value of the first phase meaasurement is compared with the result of the second phase measurement. The workpiece is turned relative to the reference shaft in conformity with the difference between the two measured values.

Abstract: A pistol grip checkering method, device and product having mill cuts both laterally and longitudinally on the convex face of a pistol grip frame. The cuts are precisely cut by milling machine. A rotatable holder is provided which is pivotable about an axis and which holds the pistol frame to be checkered, such as with a protruding male member inserted into the ammunition magazine receiving chamber within the grip. A supporting surface is provided which is oriented at an angle greater than 90.degree. with respect to the axis and which supports the pistol grip frame. Indexing means are provided to incrementally index the rotatable holder about the axis to provide for successive longitudinal cuts on the convex face of the pistol grip frame.

Abstract: An indexing and transporting mechanism having a plurality of work-holding spindles spaced around a carousel, the carousel being journaled on a machine frame provided with work-performing stations and being indexable to carry the spindles sequentially from station to station, the work-holding spindles being arranged to be indexed through one complete revolution at some stations and not at others by a work-holding spindle orienting and indexing mechanism which consists of a track carried by the machine frame concentric with the carousel journals, projections extending from the work-holding spindles which engage the track to prevent rotation of the work-holding spindles relative to the carousel over part of a revolution of the carousel, the track being interrupted at the stations where indexing occurs, each interrupted portion of the track being mounted on indexable spindles carried by the machine frame, each interrupted portion of the track being arranged to be indexed through one complete revolution while the

Abstract: A carrier is disclosed for holding an optical lens blank while forming optical surfaces on the blank. The carrier includes a clamp for holding the periphery of the lens blank while exposing a central area of the blank. An outer peripheral surface and one of two spaced end surfaces on the carrier are used in a method for locating and positioning said carrier/lens blank in a lathe, milling machine or other machine tool such that the exposed lens blank surfaces may be precisely and accurately cut to form optical lens surfaces with minimal error or misalignment. Holders for mounting the carrier in a lathe or milling machine and having locating surfaces engaging the outer peripheral and one end surface on the carrier are also disclosed.

Abstract: Brush-manufacturing machine of the type equipped with a drum (1) for the transportation of the brush bodies (2) along the various processing stations, having the characteristic that the drum (1) is equipped with brush body holders (12-13-14-15) which at least at their clamping sides facing the brush bodies (2) can be revolved and/or removed from their respective sides with which they work in concert with the drum (1).

Abstract: A rotating and indexing mechanism (10) having two spaced apart, rows of toothed profiles (48, 52) which form camming surfaces for two spaced apart rows (62, 64) of cam followers (32). The toothed profiles (48, 54) and cam followers (32) are such that when there is relative movement between the toothed profiles (48, 54) and the rows (62, 64) of cam followers (32) in one direction, the camming action of the cam followers and toothed profiles pause incremental rotation of a shaft (16). A groove (66) is also provided for locking the two profiles and cam followers together when the desired incremental (index) position is reached.Two embodiments are shown, one where the toothed profiles are moved axially to give rotation to the cam followers and shaft, and the other where the cam followers move axially to give rotation to the toothed profiles and the shaft.

Abstract: A dual position chuck and turning machine method allow automatic shifting of a workpiece from a first to a second turning axis by actuation of a draw bar through the spindle of the turning machine. A linkage in the chuck drives a movable jaw assembly having peripheral fixed keys thereon in an arcuate keyway responsive to the draw bar movement. The arcuate keyway allows moving the workpiece to second axes which are not merely rotations of the jaw assembly.

Abstract: An integrated factory system affords precision machining and inspection of aircraft turbine blades, as well as other metal parts having two generally opposite principal surfaces. It uses only two stages of chucking by the meltable matrix method. After embedding one of the surfaces in the first chuck, which positions the blank relative to a plane of reference, the other surface is machined and inspected according to programs relative to that plane. Without release from the first chuck, the part is transferred to a second chuck for embedding the machined principal surface relative to a second parallel plane of reference a precise distance from that of the first chuck. Machining and inspection is now completed relative to this second plane of reference.Improved matrix chucks are provided, as well as new chucking apparatus which establishes the planes of reference.

Abstract: Disclosed is a connector block used for placing an electrical connector in precise position for receiving the ends of wire segments that are inserted therein by a robotic device. The connector block includes a socket upon which the connector is supported. The socket (hence the supported connector) can be selectively positioned in a plurality of positions relative to the robotic device. The connector block also includes a lock pin for both securing the socket in position and for providing a readily detectable indication of which particular rotational orientation in which the socket is disposed. The connector block also includes a reference pin usable for establishing the particular orientation of the connector block relative to the form board.

Abstract: A Portable Machining Turntable (PMT) (1) used in combination with a milling, grinding or drilling machine (101) to allow both single and compound angles to be worked. The PMT (1) is comprised of an integral housing (2) enclosing an electric stepping motor (23) that through two pulleys (22), (24) and a timing belt (27) drives a worm drive assembly (17). The worm (21) drives a worm gear (43) that rotates a rotary head (36). The power to operate the motor (23) is supplied and controlled by a conventional numerical control system. However, the PMT (1) includes a mechanical override that allows the rotary head (36) to be manually rotated. To operate the PMT (1) it is mounted to a mill bed by standard clamp blocks inserted into hold-down slots (14) located on the lower walls of the housing (2). The work piece is then attached to the rotary head (36) and the head is rotated to the desired work angle.

Abstract: A machine tool having an indexable workpiece support and a tool holder which is moveable to enable the machine tool to operate on different parts of a workpiece while the latter is held stationary by the workpiece support, indexing of the workpiece support enabling a part thereof to be turned from a first position in which a workpiece can be mounted on that part, to a second position to present such a workpiece to the tool holder, whereby one workpiece can be loaded on one part of the workpiece support while another workpiece on another part of the workpiece support is being simultaneously machined by the machine tool.

Abstract: A machining center comprises a bed and an arch-shaped column having a pair of post portions spaced from each other in the transverse direction of the bed and a crossbeam portion connecting the post portions. A spindle head is supported on the crossbeam portion of the column to be movable both in the vertical direction and in the transverse direction of the bed and supports a spindle which is rotatable about a substantially vertical rotating shaft and on which a tool is demountably mounted. A base table is supported on the bed between the post portions of the column to be movable back and forth and a support supported on the base table by a supporting portion of the base table to be rotatable in an indexing manner about a rotating shaft inclined upward toward the front end thereof at 45.degree. to the rotating shaft of the spindle. A turn table is provided on the support to be rotatable in an indexing manner about a rotating shaft at 45.degree.

Abstract: A drive mechanism for the main spindle of a rotating tool turret machine, including a drive motor driving a worm carried in an eccentric mounting, rotation of the mounting effecting movement of the worm in an arcuate path into or out of engagement with a worm wheel.

Abstract: There is provided by this invention an automated machine tool having a rotary indexing table that allows the machine tool to precisely rotate a workpiece 360.degree. to perform a machining function. The rotary indexing table has an aperture therein designed to accommodate an indexing tool supported in a rotatable spindle such that with appropriate movements of the moveable worktable the indexing tool causes rotation of the rotary indexing table to a precise position.

Abstract: A tool indexing device includes a stand with a track structure. A platform for a workpiece is mounted on the track structure and movable in a first direction. A first indexing mechanism is provided for indexing the platform in a first direction relative to the stand and a second indexing mechanism is provided for indexing the workpiece in a second direction relative to the platform. A method of using the tool indexing device for gang drilling shelf support receivers in cabinet panels is provided.

Abstract: The invention relates to an index fixture system comprising a casting mounting, an indexing fixture which provides rotative positioning of a work held within a collet holder spindle. A worm gear and worm affixed to a synchronous stepping motor, giving a total of 28,800 index positions, controls the indexing fixture, the motor being controlled by a computer program containing a pre-computed list of motor step times.

Abstract: The invention is directed to an indexing attachment for a numerically controlled milling machine, comprising an indexing spindle rotatably supported in the casing for receiving a workpiece chuck, a bottom plate for fixing the casing on a worktable, and clamping means for fixing the indexing spindle in the various indexing positions. The indexing attachment is to be of simple and inexpensive structure and intended to permit--without any drive means of its own--programme-controlled indexing operations and thus milling steps along five axes. To this end the indexing spindle (10) of the indexing attachment (8) is adapted to be coupled with a driver (4) mounted on a part (2) of the milling machine and to be driven by programme-controlled motions of the milling machine.

Abstract: A machining center of a horizontal type including a vertical base is disclosed. A pallet carrying a workpiece to be machined is mounted on a pallet slide with a pallet surface being vertical so that the pallet is movable along a first horizontal axis and rotatable about this first axis. The pallet slide is mounted on the vertical base so as to be movable vertically along a first vertical surface of this base, this surface being parallel to the first axis. A spindle supporting a tool for machining the workpiece is mounted in a spindle slide so that the spindle is rotatable about a second horizontal axis making a right angle with the first axis. The spindle slide is supported by the vertical base so as to be movable horizontally along a second vertical surface of the base, said second surface making a right angle with the first vertical surface of the base. Accordingly, a wide space is formed below the workpiece and tool supported by the pallet slide and spindle slide respectively.

Abstract: The machine comprises a support surface for a reference surface on the body of the workpiece, and a device for fixing the body on the support surface and releasing the body. A withdrawable device is provided for angularly positioning the blank on the support surface. The device comprises a V-shaped recess facing the support surface. The machine permits a center-less grinding of cylindrical surfaces in overhanging relation and in particular trunnions of tripods for homokinetic joints.

Abstract: A machine tool apparatus having a bifurcated column structure comprising spaced apart columns which enclose and slidably secure the mounting end of an arm, the opposite end of which receives a rotating spindle adapted to engage and rotate a variety of machining tools. The bifurcated column structure has three primary ways having their guiding surfaces arranged generally in one plane, and the third having its guiding surface in a plane orthogonally related to the plane of the first ways. The column structure also includes three secondary ways positioned in opposed relation to the respective primary ways. Antifriction bearings are connected to the mounting end of the arm in opposed relation to the three primary and three secondary ways and serve to guide the arm for vertical movement within the column structure.

Abstract: An indexing machine utilizes a rotating assembly for incrementally rotating a workpiece which is releasably held by a gripping mechanism adapted to rotate conjointly with the rotating assembly. The gripping mechanism is movable between a first position in which the gripping mechanism grips the workpiece and a second position in which the gripping mechanism releases the workpiece. The gripping mechanism is automatically and constantly urged towards its second position so as to facilitate the release of the workpiece from the gripping mechanism. Indexing plates, which determine the increments of rotation of the rotating assembly, are positioned at one end of the rotating assembly so that they may be quickly and easily removed. The rotating assembly includes a first member and a second member, which is mounted for reciprocating movement relative to the first member. A locking device releasably locks the second member to the first member so that the second member can rotate conjointly with the first member.

Abstract: A fixture for providing positive control over a workpiece as it is being acted upon by a cutting or finishing tool. A base having a flat working surface is provided with a fixed guide member having a contoured control surface formed along the periphery thereof. A workholder is slidably supported upon the working surface of the base and is arranged to move in abutting contact against the control surface of the guide whereby a prescribed motion is imparted to a workpiece supported in the holder. In one form of the invention, the workholder is mounted upon a turntable that is rotatably supported in a circular guide whereby the work is caused to rotate about a fixed axis.

Abstract: A woodworking fixture for positioning and guiding a workpiece under a stationary routing head, whereby the workpiece is subject to a composite movement as it progresses under the routing head. The fixture comprises an indexing table having a clamp for securing the workpiece thereon, mounted on a moveable carriage. The indexing table can be slanted at an adjustable angle and may be rotated as the carriage progresses under the routing head in order to create designs of varying depth into the workpiece.

Abstract: The invention relates to a rotary index table comprising a stationary table housing, a table plate which is designed for reception of the workpiece and rotation by a drive means mounted on said table housing, a total of three Hirth-type serrations arranged concentrically with respect to one another, namely a first on said table housing, a second on said table plate, preferably in the same plane as said first Hirth-type serration, and adjacent said first two Hirth-type serrations a third Hirth-type serration that is substantially non-rotatable, but is designed for axial adjustment and simultaneous engagement with and disengagement from said first two Hirth-type serrations so as to lock and unlock the latter, said table plate being rotatable by said drive means when the first and the second Hirth-type serrations are in the disengaged state and securable at least in angular positions determined by the pitch of the Hirth-type serrations by a brake means.

Abstract: The machine of the present invention is an internal milling machine designed to mill the crank pins and crank arm cheeks of heavy crankshafts to precise dimensions. Positively locked clamping systems are employed to rigidly fix the headstock at indexed positions on the machine ways and to rotatively lock the chuck at rotatively indexed positions. Both clamping systems are capable of shifting the headstock and headstock chuck to a final precisely located indexed position as the locking members are moved into their locking relationship.

Abstract: A rotary table is driven by a pair of perpendicularly disposed linear slides which are each driven by a ballscrew drive. One of the linear slides is mounted on the movable member of the other linear slide and is coupled to the rotary table by a crank stud. The linear slides are driven at speeds which vary in accordance with the sine and cosine of the table angle to translate the linear slide motion into rotary motion.

Abstract: A machine tool wherein an annular gear is rotatable in a horizontal plane to carry a plurality of pallets between adjacent peripherally arranged machine stations. The gear is lowered as each machine station is attained by the entry of gear support bearings into recesses in the underside of the gear. The pallets are supported on the gear for limited vertical and horizontal movement, and lowering of the gear positions the pallet on an abutment surface in rough alignment with the machining station. As the gear is further lowered, it is spaced from the pallet so as not to interfere with independent positioning of the pallet by power actuated positioning means located at each machining station. Thus, the pallet can be adjusted independently of the gear when the gear is in its lowered position, yet is carried by the gear when the gear is in its elevated position.

Abstract: A universal type machine tool has a horizontal bed which, via a turnable intermediate slide, supports a rectangular work table, the slide being displaceable along the bed. A vertical column, displaceable along a bed perpendicular to the first bed has a second intermediate slide displaceable along the column and turnable around a horizontal axis. Its turnable portion carries a rectangular plate along which a foot plate for a drive unit is longitudinally displaceable. The foot plate supports a drive unit turnable around a horizontal axis and adapted alternatively to rotate a tool or a workpiece.