Abstract: A tool turret, in particular intended for use in a machine tool, is for an automated tool change process. In a work station (7) of the pivotable tool disk (5), a holder (9) intended for receiving a machining tool (15) can be attached to the tool disk (5) in a re-detachable manner by a clamping device (31) assigned to the work station (7). In an adjusting position of the tool disk (5) that differs from the working position (11), the respective clamping device (31) can be activated or deactivated, while leaving the holder (9) on the tool disk (5). In a changing position of the tool disk different from the working (11) and adjusting positions (57), the clamping device (31) unlocks the holder (9) in such a way that the holder can be removed from the tool disk (5) and replaced with another holder (9) to be used.

Abstract: A workpiece supply-and-discharge device includes a fixed portion, and a swivel portion that swivels on a bed. The fixed portion is provided with a plurality of fixed rails having an arc shape and separated from each other. Movable rails enter or exit from gaps left between the fixed rails as reciprocating actuators operate. Workpiece gripping portions configured to grip a workpiece are provided with sliders. When the workpiece gripping portions carry the workpieces while swiveling integrally with the swivel portion, the sliders transfer from the movable rails to the fixed rails or from the fixed rails to the movable rails.

Abstract: An apparatus for feeding bars to a machine tool including an end adjacent a working zone in which a spindle is provided; a drum element, rotatable around an axis; a movable support provided on the drum element for supporting and guiding a bar parallel to the axis. The movable support slidably drivable on the drum element parallel to the axis between a disengagement retracted configuration and an engagement extended configuration. The movable support having telescopic tube configured for being received inside tubular housing and guide for coupling with the spindle. The telescopic tube defines, a cylindrical containing structure configured for enclosing and supporting in a distributed manner a respective bar along the entire supporting zone, so as to prevent the bar from flexing because of the centrifugal actions generated by rotation.

Abstract: The machine tool system includes a machine tool, a loader and a support frame structure. The machine tool includes a bed and a processing equipment disposed above the bed to process a work. The loader includes a guide unit disposed above the machine tool and a movable body movable along the guide unit to load and unload the work relative to the processing equipment. The support frame structure includes left and right stands installed on a floor surface at left and right sides of the bed to support the guide unit from below and a reinforcement member inserted in a throughhole, which is provided in the bed so as to extend in a leftward and rightward direction, in a non-contact fashion without contacting an inner face of the throughhole, with left and right ends thereof connected to vertically halfway portions of the associated stands.

Abstract: A machining apparatus has a frame having an upright front wall and two vertical guides on the front wall carrying respective spindle units displaceable on the guides and each having a workpiece holder rotatable about a respective vertical axis and vertically shiftable between a respective upper machining station and a respective lower pick-up/drop-off station. A horizontal guide on the front wall carries a tool turret carrying a tool and shiftable along the horizontal guide between one position aligned with the axis of one of the spindles and another position aligned with the axis of the other of the spindles. A conveyor transports unmachined workpieces into the lower stations and machined workpieces out of the lower stations. Respective actuators shift the spindle units vertically along the respective axis between the lower stations and the upper stations.

Abstract: There is provided a work supplying apparatus for automatically and smoothly supplying workpieces having various shapes and sizes from a rear end of a hollow spindle in a machine tool or assembling machine. The work supplying apparatus has a work pushing means for pushing the workpiece held by a holding means into a chuck, and a pusher for pushing and holding the workpiece supplied to a work receiver in the direction of the holding means.

Abstract: A machining apparatus has a frame defining a transfer station and a machining station thereabove, a spindle having a workpiece grab and vertically displaceable on the frame between an upper position with the grab in the machining station and a lower position with the grab in the transfer station, a tool holder horizontally displaceable on the frame toward and away from the machining station, and a workpiece conveyor extending through the transfer station. After shifting a deflector underneath the machining station into a side position out from underneath the grab, the grab is lowered to pick an at least partially unmachined workpiece in the transfer station off the conveyor and then raised with the workpiece into the machining station. The deflector is then shifted between a use position over the transfer station and under the machining station and a side position allowing the spindle to pass.

Abstract: The device for automatically feeding blanks or half-finished workpieces to a machine tool, more particularly a CNC lathe, and automatically unloading the machined workpieces is composed of a gantry loader having an integrated feeder device that allows loading bars into the rear of the spindle of the lathe, thereby constituting a universal automatic feeding device. Furthermore, the latter more particularly allows a controlled removal of the bar end after all workpieces have been machined from a respective bar.

Abstract: A machining apparatus has a frame and two generally parallel horizontal guides on the frame, one of which extends through at least one loading station and through at least one work station. A slide carrying a pair of spindles each capable of gripping a workpiece is shiftable between positions with the spindles aligned with the stations. A tool holder is shiftable on the other of the guides toward and away from the work station. Respective guides between each of the spindles and the slide allow vertical movement of the spindles on the slide. Actuators shift the slide horizontally on the one guide, shift the tool holder horizontally parallel to the slide on the other guide, and shift the spindles vertically on the slide.

Abstract: A feed rod vibration prevention support of a material feeder includes a guide device for guiding a feed rod moving to feed a material to a working machine, and a vibration attenuation mechanism for preventing the feed rod from being vibrated. The guide device further includes a guide and a bush supported by the guide having a feed rod placed thereon. The vibration attenuation mechanism includes a first elastic material located between the bush and the guide. The bush is provided with a flanged portion.

Abstract: A device and method to feed metal bars associated with a work machine including at least a drawing member for the metal bars. The device includes loading members to load one or more metal bars to the work machine, and one or more containing members in which the metal bars are disposed in respective bundles. The device also includes deflector members disposed downstream of the containing members and upstream of the drawing member, and movable laterally in independent manner with respect to the containing members, so as to be able to condition the position of at least a head portion of each of the metal bars picked up, relative to their lying position in the containing members, so as to displace them sideways one by one, or in groups, with respect to a nominal axis (X) in which the metal bars lie stationary in the respective containing member.

Abstract: An installation for sequential loading of bars of material in a machining center includes a frame, a first device, and a second device. The frame includes at least one first arcuate bearing surface and at least one second arcuate bearing surface connected to the first bearing surface at a first station. The first device includes a first elongated body having a peripheral first face engaging the at least one first bearing surface and a plurality of first longitudinal cavities in the first face. The first elongated body is configured to rotate such that the first bearing surface blocks an opening of the first longitudinal cavities between a first position where a bar is loaded into the first longitudinal cavity and a second position where a bar exits the first longitudinal cavity at the first station.

Abstract: A separator chute is placed at a standby position while a part is machined, and when the processing of the part is completed, the separator chute is swung and moved to a reception position to receive the part separated from a spindle. An opening portion of a cover structure, formed near a pivot shaft of the separator chute, is formed in the size through which the machined part can be discharged. The opening portion is closed by the separator chute when the chute is in the standby position and opened when the chute is in the reception position.

Abstract: The invention provides a device for automatically carrying in and out a workpiece cooperating with a tool spindle stock of a composite working lathe. The composite working lathe comprises a main spindle 10, a workpiece handling device 20 and a tool spindle stock 30 that rotates around a B axis. A workpiece carry-in/out device 100 comprises a frame 120 including a material carry-in hand 130 and a finished product tray 140, and a cylinder 110 for moving the frame back and forth. A door 60 of a cover 50 is opened to carry in a material B1 and carry out a finished product P1.

Abstract: There is provided a machine tool capable of housing workpieces of different sizes in a same workpiece storage unit without requiring a new workpiece storage unit. In a machine tool including a workpiece storage unit having a plurality of housing spaces housing workpieces and a processing machine processing a workpiece supplied from one of the housing spaces, the workpiece storage unit is structured so that the size of each housing space is changeable.

Abstract: Disclosed is a bar feeder, which comprises a swing member designed to be swingably moved by a rotation shaft located above a guide rail. In normal mode, the swing member is kept in a standby in the vicinity of an upper position where the swing member is located to extend across and over a guide rail up to a bar rack. The swing member normally rotated to a lower position where the swing member is located on a far side from the bar rack with respect to the guide rail. During the process, the swing member receives a bar from the bar rack, and loads the bar to the guide rail. When a bar is removed from the guide rail, the movement of a bar to the swing member is inhibited by an inhibition member, and the swing member without a bar is moved to the lower position to create an ejection space between the rotation shaft and the bar rack. The present invention makes it possible to readily remove the bar loaded in the guide rail therefrom.

Abstract: A main spindle and a back spindle grip works W, respectively. Or, the main spindle grips one end of a work W and the back spindle grips the other end of the work W. A tool is attached to a tool spindle. By adjusting the positions of the spindles and the position of the tool spindle, the work W gripped by the main spindle and the back spindle is machined by the tool. Since tool spindle can change the direction of the tool, the work W, including both ends thereof, can be entirely machined into a complex shape. A guide bush supports the work W to prevent the work W from being bent when a lengthy work W is machined. Therefore, this lathe can entirely machine a long or short work into a complex shape.

Abstract: A vertical machining center with a tool slide, which can be moved in a controlled manner, and a workpiece feed on one side of a machining area is designed for automatically changing the workpiece holders with workpieces. To this end, the workpiece feed is designed for holding available and accepting workpiece holders with workpieces and is mounted so as to be in alignment with a CNC rotary table on that side of the vertical machining center, on which the respective workpiece holder is held by the CNC rotary table.

Abstract: In a vertical machining center, a spindle head is movable in three mutually transverse axes directions relative to a workpiece and a table is arranged below. A vertical stocker is disposed in the vicinity of a machining area and stocks the bar workpiece in a vertical direction. A hand portion which grips and releases the bar workpiece is provided on the spindle head. The spindle head moves between the stocker and the table so that the hand portion transfers the bar workpiece and performs putting and removing the bar workpiece to the stocker and a chuck of the table, respectively.

Abstract: A workpiece feeder adapted to feed workpieces to the processing main shaft of a cutting metal-working machine individually is disclosed to include a frame base adapted to carry individual workpieces, a conveyer, two striking blocks fixedly fastened to the conveyer, a power drive controlled by a control box to move workpieces to the feeding position one after another and to rotate the conveyer, causing the striking blocks to force individual workpieces to the processing main shaft of the cutting metal-working machine one after another through a workpiece guide.

Abstract: A lathe (10) includes a support structure (12) which supports a magazine (14) in a substantially vertical operative orientation. The magazine (14) is rotatably supported in a carriage (24). The magazine (14) is a multi-spindle magazine and supports a plurality of workpieces. A workstation head (40) is mounted on the housing (18). The workstation head defines a plurality of workstations (46). Each workstation head includes a plurality of working tools.

Abstract: A work transfer apparatus 1 includes a turn table 3 with a plurality of work-storing pockets 2 for storing works W at the outer periphery of the turn table and a base 4 slidably supporting the works W stored in the work-storing pockets 2 of the turn table 3. A probing detector 6 is provided in the base 4, and the probing detector 6 comes in contact with the works W in the work-storing pockets 2. An entire portion of the base 4 which comes in contact with the works W is made of insulant material 5.

Abstract: A sprocket wheel or double helical gear loader for a machine which generates gears by pinion shaped cutters. The machine includes a gear bearing table having a centering device and a rotatable supporting base. The loader includes a turntable which advances step-by-step about an axis of rotation of the base. The turntable includes on its periphery a plurality of gear holders, which can be intermittently positioned at cutting stations and a discharge station of completed gears. A gear is secured to the turntable through gripping arms, which surround the gear about a whole of the gear perimeter except for an aperture. A cutter passes through the aperture. The gripping arms are movable to accommodate gears of different sizes.

Abstract: A bar stock loader (10) having a synchronizing head (16) for matching the flats of a fresh length of bar stock (14) with the flats of a remnent of bar stock (14′) being machined in an automatic screw machine (12). The synchronizing head (16) has a selectively engageable drive controlled by a timing signal (66) that allows the fresh length of a bar stock (14) to be rotated at a speed approximately the speed of rotation of the remnant segment of bar stock (14′). A clutch (30) is provided for selectively interlocking a driven member (22) having a bushing (24) in which the fresh length of bar stock (14) is received to a bar stock engaging member (23) that is connected to the spindle (28) of the automatic screw machine. A method of loading bar stock is also disclosed.

Abstract: An automatic pneumatic bar feeding apparatus for automatically feeding a plurality of bar stocks to a work station, such as a computer numerical control (CNC) machine for processing, thereby eliminating the need to reload the bar feeding apparatus with another bar stock one at a time. The bar feeding apparatus comprises a rotary which turns a loading unit 45° to a loading position for loading a bar stock onto the loading assembly from a holding tray. After the bar stock has been loaded onto the loading assembly, the rotary turns the loading assembly back to its initial position or feeding position. A pneumatic motor supplies air to a rear feeding assembly, wherein the feeding assembly pushes the bar stock to the work station for processing. When the feeding assembly has fed the majority of the bar stock into the CNC machine, the rotary turns the loading assembly back to the loading position.

Abstract: The feeder for short rods of a diameter of between 6 and 120 mm for a machine such as a turning lathe or an automatic lathe comprises a rod loading device having elements for holding a plurality of rods on an inclined plane and loading slides, a device for centering rods along an axis of alignment with respect to the machine tool, and a device for advancing rods in the machine tool. The holding elements are fingers which do not just hold a rod, but offer it, in the course of loading, a support surface in such a way that the rod is simultaneously supported by the finger and the loading slide. The feeder further comprises a device making it possible to adapt the position of the first rod to be loaded to the diameter of this rod when the limit stop for the course of the loading slide is adjusted to the diameter of the rod.

Abstract: A device for effecting at least one of a loading and unloading operation of a workpiece with respect to a machine tool. The device includes a base adapted to be mounted adjacent the machine tool and a tubular member. The tubular member includes an inner chamber and an elongate opening communicating with the inner chamber for receiving the workpiece. The inner chamber has one end adapted to communicate with a spindle of the machine tool and the tubular member is mounted for rotation with respect to the base. A sealing member is mounted for selective removal and sealing engagement with respect to the elongate opening and a source of pressurized air communicates with the chamber for moving the workpiece in at least one direction within the chamber when the sealing member is in sealing engagement around the elongate opening.

Abstract: The automatic bar feeder device comprises a loading device that loads or unloads a bar from a hopper while avoiding shock exerted by the bar against an element of the magazine bar feed, the bar to be treated being seized by claws (42) which transport the bar towards the bench (22) and lay it smoothly down there. The movements of the loading device (40) are reversible so that it is able to act also as an unloading device. The loading/unloading device (40) cooperates with the long advance device (70) thanks to a combination of movements. Finally, the short advance device (40) and the long advance device (70) are driven for advancing the bar into a lathe, by one and the same element (98), the two devices are able to be coupled and uncoupled through a latching/unlatching device (80).

Abstract: A bar loder, includes a guide rail for feeding a bar to a bar machining apparatus. The guide rail extends straight toward the bar machining apparatus and has an opening for receiving a new bar. The opening is oriented upwardly and extends longitudinally along the guide rail. An oil outlet is provided for feeding oil into the guide rail, with an amount of the oil being enough to coat a peripheral surface of the bar.

Abstract: A vertical machine tool with a movable main spindle has a headstock for supporting a spindle having an axis in a vertical direction. A work feeder gives and takes a work between the work feeder and a chuck. The work feeder includes a work feeder frame provided in the vicinity of a machine body, a swivel member driven by a driving means for swivelling, a plurality of pallets mounted on the swivel member, and a supporting device disposed in a work receipt/release position where the pallet is positioned for receiving/releasing the work between the pallet and the chuck. The supporting device supports the pallet, positioned in the work receipt/release position, movably up and down in the direction of the axis of the spindle. The receipt/release of the work may be performed under the condition that the work is kept depressed to the chuck.

Abstract: A CNC machine tool has a plurality of collet chucks in a fixture that requires loading workpieces in these collets by hand. The workpieces are first assembled on a loading bar or holder so they can be collectively loaded in the ganged collet chuck for machining in the CNC machine. The holder has spaced stations, and each station includes a standard base adapter and an individualized parts adapter that fits onto the base adapter. Each parts adapter will be configured to accept a part to be machined.

Abstract: An unloading device for removing a workpiece from a lathe having a spindle for holding the workpiece includes an unloading apparatus for receiving the workpiece configured to couple to the spindle. A pneumatic system is coupled to the unloading apparatus whereby air flow acts on the workpiece and causes the workpiece to exit the spindle and travel to the unloading apparatus. The unloading apparatus extends into a machining chamber of the lathe to couple to the spindle. A downstream end of the unloading apparatus is configured to create a venturi effect. A workpiece receiving tray is located downstream of the unloading apparatus. After exiting the unloading apparatus the workpiece is directed against a damper. A safety door is located between the unloading apparatus and the damper. The unloading device has a footprint of a limited dimension permitting use of the unloading device with a chip conveyor.

Abstract: A bar stock loader having a synchronizing head for matching the flats of a fresh length of bar stock with the flats of a remnant segment of bar stock being machined in an automatic screw machine. The synchronizing head has a selectively engageable drive controlled by a timing signal that allows the fresh length of bar stock to be rotated at a speed approximately the speed of rotation of the remnant segment of bar stock. A clutch is provided for selectively interlocking a driven member having a bushing in which the fresh length of bar stock is received to a bar stock engaging member that is connected to the spindle of the automatic screw machine. A method of loading bar stock is also disclosed.

Abstract: A system for delivering elongate workpieces to a point of use. The delivering system has a first storage unit for a supply of a first type of elongate workpiece, a second storage unit for a supply of a second type of elongate workpiece, a pickup unit for selectively picking up elongate workpieces one-by-one from the first and second storage units, and a guide system for guidingly moving the pickup unit with a workpiece picked up thereby to a predetermined transfer location.

Abstract: An apparatus for transferring workpieces to and from the chuck of a machine tool. A gripper arm is mounted to the machine frame for selectively axial and rotational movement on a shaft having helical and longitudinal threads on the surface thereof. A first nut is rotatably mounted to the machine frame for axial advancement of the shaft and a second nut is rotatably mounted for rotational advancement. The apparatus may also include a panel mounted to the machine frame between a transfer station and the chuck. An opening in the panel adjacent the transfer station has surfaces which mate with corresponding surfaces of the gripper arm so as to preclude the passage of debris to the transfer station. The apparatus may also include an apparatus for sequentially transferring a series of workpieces. The apparatus has a two gripper jaws and a compressible pusher plate therebetween which is compressed as it is moved towards an opening in an input chute so that a workpiece may roll between the jaws of the gripper.

Abstract: A bar feeding device for multi-spindle machine tools includes a rotating drum provided with a plurality of guides for the bars, which longitudinally extend in different angular positions on the outer surface of the drum. Bar pushing members slidingly movable along the guides are connected to a control system comprising a set of peripheral gears circumferentially arranged at one end, and supported to rotate with the drum, coplanarly around a central pinion gear connected to a drive motor. The pinion gear is tangentially arranged in an offset angular position to selectively engage each peripheral gear over a predetermined arch shaped path by rotation of the drum.

Abstract: In a lathe of a type employing a movable main spindle, the main spindle (2) is moved in a leftward and rightward direction (Y-axis direction) perpendicular to the longitudinal axis of the main spindle (2) after a workpiece (W) has been machined, and during the movement of the main spindle (2), the machined workpiece (W) is unloaded from the main spindle (2). At a position to which the main spindle (2) has further been moved, another workpiece (W) to be subsequently machined is loaded on the main spindle (2). The unloading of the machined workpiece (W) is carried out by a method in which the machined workpiece (W) is ejected by a workpiece eject means (7) built in a chuck (2a) in the main spindle (2).

Abstract: An apparatus for transferring workpieces to and from the chuck of a machine tool. A gripper arm is mounted to the machine frame for selectively axial and rotational movement on a shaft having helical and longitudinal threads on the surface thereof. A first nut is rotatably mounted to the machine frame for axial advancement of the shaft and a second nut is rotatably mounted for rotational advancement. The apparatus may also include a panel mounted to the machine frame between a transfer station and the chuck. An opening in the panel adjacent the transfer station has surfaces which mate with corresponding surfaces of the gripper arm so as to preclude the passage of debris to the transfer station. The apparatus may also include an apparatus for sequentially transferring a series of workpieces. The apparatus has a two gripper jaws and a compressible pusher plate therebetween which is compressed as it is moved towards an opening in an input chute so that a workpiece may roll between the jaws of the gripper.

Abstract: Automatic apparatus for the feeding of bar-shaped stock to a machine tool, comprising an elongated receiving box which extends in feed direction, has a guide passage open at both ends for receiving a new stock bar and is formed by two receiving channels, an actuating device for the opening and closing of the receiving box as well as a pushing-in device for pushing a new stock bar in feed direction into the machine tool, wherein for simplifying the construction a clamping device is associated with the receiving box for securing a new stock bar in place in the receiving box and the latter is guided for displacement in feed direction and is displaceable back and forth in feed direction by the pushing-in device.

Abstract: A loading and unloading mechanism including a workpiece receiving and discharging chamber and pressurized air/vacuum source operatively connected to the chamber. The chamber is tubular and adapted to be connected to the spindle of a lathe in a coaxial relationship. Pressurized air is used to force the workpiece into the lathe spindle and vacuum pressure is used to draw the workpiece out of the lathe and back into the tubular chamber. The device may be modified to facilitate vacuum unloading only in the case in which the lathe is manually loaded. A proximity switch is provided for detecting the passage of a finished workpiece out of the lathe and back into the chamber whereupon the chamber is opened and the workpiece is discharged.

Abstract: An apparatus is provided for automatic, intermittent feed of workpieces into a lathe. The apparatus includes a collet having a side entry for receiving workpieces and a workpiece positioning aperture, in alignment with the lathe spindle, for finally positioning the workpieces for machining. The collet further includes dowel pins that initially position the workpiece and a plunger that reciprocates intermittently to advance and press the individual workpieces into the positioning aperture. The apparatus includes a delivery chute for intermittently dropping the individual workpieces into the collet assembly side access for initial positioning. A control system positions the collet assembly to receive the workpiece, releases the workpiece from the delivery chute, actuates the plunger to press the workpiece into final position for machining, actuates machining, and, at its completion, actuates the plunger to withdraw the workpiece whereupon it drops from the machine by gravity.

Abstract: The workpiece handling device includes a workpiece carrying arm and a workpiece support spaced from the lathe machine on which the workpiece carrying arm is pivotally provided. The workpiece carrying arm includes a gripping unit for holding the workpiece thereon. The workpiece carrying arm can turn within a 180 degree range.

Abstract: A machine for simultaneously turning and boring a ring-shaped workpiece has a frame of four parallel structural shafts secured between end stands. An active spindle assembly is mounted on a carriage slidably mounted on the shafts. The carriage is hydraulically drivable axially toward a stop cylinder of a passive spindle assembly rotatably mounted but axially immovable on one stand, to clamp the workpiece ring between a clamp cylinder of the active spindle assembly and the stop cylinder. The clamp cylinder is rotatable by the main machine drive motor for turning the workpiece. The workpiece ring is introduced laterally to the working area by a loader shuttle. Then the workpiece is centered in the work space by an axially drivable centering crescent as the workpiece is clamped in position between the clamp cylinder and stop cylinder for the turning to commence. Cylindrical slides and slideways are provided at right angles for both radial and axial movement of the external turning tool mounting bar.

Abstract: The invention relates to a lathe and grinder apparatus for turning and/or grinding works and for any like machining thereof requiring spindles to be used, which comprises two dual-spindle units (T1, T2), that may be even more than two in number, arranged in a side by side parallel relation, and interfaced by means of manipulators (R1, R2, R.sub.3), which are for feeding works to the first dual-spindle unit, for delivering the machined works from the final dual-spindle unit, and for transferring the workpieces, may be in a modified direction thereof, from a dual-spindle unit to the successive one, so as to allow the various work surfaces to be machined.

Abstract: A machine tool includes a table (24) movable in a first direction and a second direction for supporting a work holder (H), a work storage magazine (3) for storing a plurality of work holders (H), and a work changer for transferring work holders (H) between the work storage magazine (3) and the table (24). The axis of the work holder (H) supported in the table (24) is directed in a horizontal direction. Each axis of the work holders (H) stored in the work magazine (3) is directed in a vertical direction.

Abstract: A workpiece machining system for simultaneously machining the opposite surfaces of workpieces such as discs for disc brakes includes at least two machining apparatus disposed on a workpiece transfer path between a first workpiece inlet conveyor line and a second workpiece outlet conveyor line, for machining respective workpieces while holding and rotating the workpieces in the same attitude as that in which they are conveyed along the first and second conveyor lines. The workpiece machining system also includes a transfer apparatus for transferring the workpieces from the first conveyor line through the machining apparatus to the second conveyor line while maintaining the workpieces in the same attitude.

Abstract: A workpiece transfer device of a grinding machine is provided with an arm having a suction pad thereon for transferring ground workpieces. Since air is injected from the suction pad when the arm is in a standby position, coolant and grinding chips are not sucked into the suction pad.

Abstract: A machine tool has a table movable relative to a head for machining a workpiece mounted on the head by a tool mounted on the table. The table also supports a magazine for blank workpieces, and the table is movable between a first position in which the head and the tool are in machining promitiy and a second position in which the head and the magazine are proximate. The head has a work holder adapted to grip a blank workpiece at said second position for transfer, by movement of the table, to said first position. After machining, the workpiece is correspondingly returnable to the magazine. The work holder is mounted on a spindle supported on the head and rotatable for machining purposes. In a modification the spindle supports a tool, and the head has a gripper which is separate from the spindle and is used for the transfer of workpieces between the magazine and a work holder mounted on the table.

Abstract: A lathe apparatus for machining flat, circular disk-shaped recording media, for example, audio, video or ROM compact disks, for the purpose of improving their surface quality and their dimensional stability is provided which comprises a driven lathe spindle (7), a vacuum chuck (8) for holding the recording medium or substrate (15, 15') to be machined, a carriage (9) for holding and guiding the tool (5), and magazines (14) for holding the machined and unmachined substrates. A robot (10) provided on the base (2) or bed (4) of the lathe comprises a gripper arm (11) with gripping tongs (12) movable in several planes which transports the substrates from one magazine (14) to the vacuum chuck (8) or from the vacuum chuck to the other magazine. The stacking axes (L) of the two magazines extend at an angle to the horizontal plane (E), and the magazines are maintained within the range of action of the gripper arm (11) with gripping tongs (12).

Abstract: In order to markedly reduce the necessary installation area for a device for feeding rodlike workpieces to a machine tool with at least one rod feed tube for a rodlike workpiece (15) to be processed, feedable from a magazine (16) into the rod feed tube, it is suggested that the rod feed tube is formed by two guide elements which can be lifted off each other for inserting the rodlike workpiece (15) and that the magazine (16) is arranged parallel, below beside or above the guide elements.