Abstract: A tool turret mechanism includes internal and external tool turrets, a toothed ring secured to the internal tool turret, a central shaft secured to the external turret, a power switch, and a clutch; the central shaft has a piston fitted thereto; the power switch is used for providing power to the internal and the external turrets through the toothed ring and the shaft respectively; the clutch includes a fixed clutch claw, external and internal ring clutch claws, which are respectively securely connected to inner edge of the internal turret, and inner edge of the external turret; the ring clutch claws will rotate, and engage each other; when the piston is actuated, and displaced, the external turret will be forced to change position, and both the turrets will be left and right displaced between a first position, in which they engage the clutch, and a second position, in which they disengage the clutch.

Abstract: In order to improve a multispindle lathe comprising a machine frame, a rotatably mounted spindle drum, at least two workpiece spindles arranged in the spindle drum with their workpiece receiving means rotatable about a respective spindle axis, a plurality of spindle stations provided stationarily on the machine frame, into which the workpiece spindles are adapted to be brought, such that removal of workpieces in the workpiece removal station, which can take place very quickly, is possible with simple means, it is proposed that a rotatable workpiece receiving means be allocated to the workpiece removal station, the workpiece receiving means being movable by means of a carrier device relative to the workpiece spindle located in a workpiece removal station between a workpiece take-over position, in which the axis of the workpiece receiving means extends coaxially with the spindle axis of the workpiece spindle located in the workpiece removal station, and a workpiece delivery position, and the workpiece receiving

Abstract: The invention relates to a tool revolver comprising a revolver head (12) which is supported by a housing (20) and which can be rotated in relation to said housing (20) by means of at least one axial bearing (24). The axial bearing (24) is mounted in between the revolver head (12) and the housing (20) in the direction of the revolver head (12) by means of a locking member (32). The hydraulic medium producing the fluidic pressure can be placed in between the locking member (32) and a connecting element (38). The connecting element (38) engages with the locking member (32) from below in such a way that the axial bearing (24) is subject to pressure when the revolver head (12) is in a locked or unlocked state. Consequently, all major functions are brought together in a minimum amount of construction space, requiring only a minimum amount of components.

Abstract: A turret lathe includes a bed, a headstock mounted on the bed, a first slide mounted slidably on the bed, a second slide mounted slidably on the first slide, a spindle journalled to the headstock, a chuck mounted on the spindle, a tailstock mounted on the second slide, a driven shaft journalled to the tailstock, a turret mounted on the driven shaft, a transmission unit, and a clutch operable between a chamfering operation mode, in which the driven shaft is connected to the spindle through the transmission unit, and a turning operation mode, in which the driven shaft is disconnected from the spindle.

Abstract: A tool for chip removing machining includes a holder and a tool head removably attached to the holder by screws. The head, which carries at least one cutting insert, has a serrated surface mated with a serrated surface of the holder. Those serrated surfaces define an interface between the holder and the head which is oriented at a 45 degree angle with respect to a basal plane extending through the holder and containing a longitudinal axis thereof.

Abstract: A cutting tool is disposed on a turret. The cutting tool includes: a holder having a peak end, and a throw-away insert clamped to the peak end of the holder with a clamp screw. The holder has a bottom face and a peak end face defining a corner of the holder. The corner of the holder forms a chamfered face. The throw-away insert has a bottom face and a relief face defining a corner of the throw-away insert. The corner of the throw-away insert forms a chamfered face. The chamfered face of the corner of the holder and the chamfered face of the corner of the throw-away insert prevent the cutting tools adjacent to each other from causing an interference with each other when the cutting tools are at least one of in a standby position and in a machining operation.

Abstract: A versatile quick change tooling system for internally and externally mounted machine tools which provides components adaptable to a system which is easy to maintain since it has no moving parts. The system would allow for universal adaptation of both internal and external tools on a machine turret and would include a turret having a face portion for mounting tools thereon; a plurality of receivers adjustable to centerline engaged either to the face portion or the perimeter portion of the turret; a tapered bore formed into each of the receivers; a tool holder, with a tool secured to a first end, and having a second end being a tapered shank to be positioned within the tapered bore of each of the receivers; a retainer secured to the tapered shank to secure each tool holder to each receiver; and allowing each of the tool holders mounted to the receivers to be easily removed by unsecuring the retainer from the tapered shank, and replacing the tool holder with a new tool holder and tool secured thereupon.

Abstract: The novel turning method on a lathe or a machining apparatus uses a tool head which is traversable for the machining and can be rotated mechanically in a receiver with a rotary axis D in the course of the machining. The rotary axis D of the tool head lies within an angular range &agr; of 45° to 90° to the X-axis and perpendicularly to the Z-axis of the machining apparatus. In addition, a tool head is used whose cutting inserts are arranged in such a way that each cutting insert has a tool reference plane Pr through in each case identical selected cutting-edge points perpendicularly to the assumed cutting direction in accordance with DIN 6581, this tool reference plane Pr running within an angular range &bgr; of 90° to 135° to the rotary axis D of the tool head.

Abstract: A device for positionally-accurate accommodation of at least one secondary member on a carrier, such as a toolholder on a turret disc, comprises of adjustable locating means for positionally-accurate adjustment of the secondary member relative to the carrier. The locating means comprise of a bearing surface (24), which is laterally arranged on the carrier in the vicinity of its seat-engaging surface and which are arranged on a locating member that is adjustable relative to the carrier by means of adjusting means (30). Moreover the secondary member (17) comprises of stopping means, which are similarly allocated to the locating member in the vicinity of its seat-engaging surface (170) and which, when a secondary member is mounted on the seat-engaging surface of the carrier, are held in contact with the stopping face with prestress.

Abstract: A turret tool rest (14) includes a turret (24) movably supported on a base (22), on which desired tools can be mounted at predetermined indexable angled positions. A pair of coupling elements (66, 68), which can be engaged with each other, are arranged between the base (22) and the turret (24). The coupling elements (66, 68) are moved between an engaged position at which they are mutually engaged to fixedly hold the turret at respective indexed positions on the base, and a disengaged position at which they are mutually disengaged to permit the turret to be rotationally indexed. A spring-loaded plunger unit (80) serves to prevent the turret (24) from freely rotating on the base (22),until the coupling elements (66, 68) are fully engaged with each other, during the moving operation of the coupling elements between the engaged and disengaged positions.

Abstract: A complex tool has a main body and a turning tool provided at an outer periphery portion of the main body. The turning tool is capable of machining on a rotating workpiece without rotating itself. An insert installed on the turning tool has a top end which contacts a workpiece by projecting a predetermined amount outside the main body's outer peripheral face. It also projects a predetermined amount from a top end portion of the main body in a direction of an axial center of the tool. The complex tool also has a rotating tool for machining by rotating itself. The rotating tool accomplishes machining corresponding to an axial center of the main body.

Abstract: A device for positionally-accurate accommodation of at least one secondary member on a carrier, such as a toolholder on a turret disc, comprises of adjustable locating means for positionally-accurate adjustment of the secondary member relative to the carrier. The locating means comprise of a bearing surface (24), which is laterally arranged on the carrier in the vicinity of its seat-engaging surface and which are arranged on a locating member that is adjustable relative to the carrier by means of adjusting means (30). Moreover the secondary member (17) comprises of stopping means, which are similarly allocated to the locating member in the vicinity of its seat-engaging surface (170) and which, when a secondary member is mounted on the seat-engaging surface of the carrier, are held in contact with the stopping face with prestress.

Abstract: The invention provides a tool support for machine tools comprising a base unit, a holding member arranged on the base unit and two supporting surfaces extending at an acute angle to one another arranged on the holding member for supporting a tool holder in first and second supporting areas. A clamping device acts on a clamping member of the tool holder such that the tool holder acts upon the supporting surfaces with the two supporting areas. The clamping element may be mounted in the holding member for rotation about an axis and bear a wedge surface movable around the axis for acting on the clamping member. The wedge surface of the clamping element may engage over the clamping member proceeding from an insert position during the rotation of the clamping element in a first direction of rotation and displace the clamping member increasingly in the clamping direction.

Abstract: The invention relates to a spindlehead for tools which may be inserted into a tool disk with holders provided for this purpose and whose chucking means for spindle (10) holding the shank of the tool is rotatably mounted in a second section (26) adjacent to the first end section (12) receiving the tool shank, with a spindle bearing (14), and with a coolant feed (34) guided at least in part in the spindlehead housing (16), coolant transfer for the respective tool being effected by way of at least one coolant channel (40, 42, 44) which applies an internal coolant feed (34) for the respective tool by way of a sealing device (52) with throttling point separated from parts of a drainage channel (46, 48, 50) and the sealing device (52) having at least one seal (54, 56) which encloses the spindle (10).

Abstract: The novel turning method on a lathe or a machining apparatus uses a tool head which is traversable for the machining and can be rotated mechanically in a receiver with a rotary axis D in the course of the machining. The rotary axis D of the tool head lies within an angular range &agr; of 45° to 90° to the X-axis and perpendicularly to the Z-axis of the machining apparatus. In addition, a tool head is used whose cutting inserts are arranged in such a way that each cutting insert has a tool reference plane Pr through in each case identical selected cutting-edge points perpendicularly to the assumed cutting direction in accordance with DIN 6581, this tool reference plane Pr running within an angular range &bgr; of 90° to 135° to the rotary axis D of the tool head.

Abstract: 1. Turret.

Abstract: A tool holder apparatus mountable on a machine spindle which apparatus is adjustable and provides a solid stable support for the tool holder to eliminate any gap or spacing between the end of a machine spindle and the support collar of the tool holder.

Abstract: An operating unit for a transfer tool machine comprises a turret head having a rotary plate, a plurality of tool holding devices arranged on the rotary plate, a supporting arm supporting the turret head on the tool machine framework and a mandrel which is driven by a reducing driving device also mounted on the machine tool framework.

Abstract: A reconfigurable tool changer allows a tool cartridge to be easily attached to, or detached from, a standard machine-tool spindle head. The modular design, includes a revolving tool cartridge having a plurality of tool holders, a meshing gear for engaging a tool holder with the spindle of the machine tool, and an adapter block for positioning the revolving tool cartridge on any standard machine-tool spindle head. The adapter block allows the automatic tool changer to be easily coupled to a wide variety of commercial machine-tool spindles, making the invention a truly reconfigurable and portable tool changer. The revolving tool cartridge incorporates a novel three-dimensional cam structure mechanism, which allows tool indexing to be achieved by means of only one actuator.

Abstract: A material removal tool holder for a machine tool such as a CNC automatic turret lathe comprises a frame for attachment to a turret with a tool holding channel formed therein for holding a material removal tool. The material removal tool is held within the channel by fasteners connected to the frame. The position of the removal tool within the channel of the frame is adjustable by means of an adjustable shim mounted in the channel. The adjustable shim is disposed in the tool holding channel between the material removal tool and a wall of the channel, and is adjustable to position a cutting edge of the material removal tool to a predetermined position in the machine tool.

Abstract: A workpiece table, provided for a machine tool, is movable back and forth between two end positions and has for this purpose a rotational drive which has a gear part joined to the workpiece table for rotation thereof, a toothed rack in engagement therewith, as well as a medium-actuated shift drive for displacement of the toothed rack, which thereby performs a linear stroke motion, delimited by stops, between two end locations corresponding to the end positions of the workpiece table. Provided on the workpiece table is a mechanism which acts upon the toothed rack with a higher feed force at the beginning of the linear stroke movement than during the remainder of the linear stroke.

Abstract: A tool post has gibs for locking tool holders onto dovetail tool mounts, the gibs having an extended range of movement vertically on the tool post to permit mounting of tool holders in a range of vertical positions on the tool mounts. The tool post has mounts for several tool holders, which may be independently locked on the mounts and unlocked from the mounts by adjustment of independently movable gibs. The tool post has a handle with a movable adjustable pawl, and upwardly-projecting screw heads projecting from the top of the tool post. The pawl is movable so that the handle can selectively be rotated between screw heads. The screw heads drive screws which move gibs for locking and unlocking tool holders on the tool mounts. The tool post has a base plate with a non-circular element rigidly attached thereto. The element may be fixed on a lathe to prevent rotation of the body of the tool post.

Abstract: A tool holder which uses a collet for holding a stationary tool on a turret of a turret lathe. The turret being of the type having a plurality of flat surfaces adapted for receiving a tool holder. The tool holder includes a body with a flat surface adapted for mounting against at least one of the flat surfaces of the turret, and a fixed aperture of a fixed size having an axis, a first end centered on the axis and a second end centered on the axis and a constriction starting near the first end and gradually reducing the size of the aperture in the direction of the second end. At least two locations for fixedly mounting the body against the turret are positioned next to the aperture, and allow for mounting of the body against the turret in a fixed position.

Abstract: In a tool turret for a machine tool, in particular, a lathe, comprising a turret head rotatable about a turret indexing axis, the turret head tapering on either side of a diameter plane of the turret head extending perpendicularly to the turret indexing axis and having on each side of this diameter plane a circular ring-shaped row of tool stations which is concentric with the indexing axis, each of the tool stations having a tool receiving means for clamping a toolholder for a machining tool, in order to increase the machining operations which are performable with a tool turret and the machining accuracy, such a tool turret is so designed that: each tool station comprises a planar contact surface formed by the outer surfaces of the turret head for a toolholder; the contact surfaces of the two rows of tool stations define regular pyramids of identical shape which point away from one another and whose axes coincide with the turret indexing axis; each row of tool stations has at least one tool receiving means fo

Abstract: Positioning engaging members (27) are provided between a base table (10) and a turret (11) which is indexed relative to the base table (10) by a driving force of an indexing/tool turning motor (32) so as to be engageable with or disengageable from each other. The positioning engaging members (27) engage with each other to prevent the turret (11) from turning. Further, the driving force of the indexing/tool turning motor (32) is transmitted or not transmitted to the turret (11) by clutch pieces (31). The driving force of the indexing/tool turning motor (32) is transmitted to a turning tool (14) mounted on tool mounting portions (12) of the turret (11) via a power transmission member. The positioning engaging members (27) engage with or disengage from each other by an engaging unit.

Abstract: The invention relates to toolholders and mechanisms for securing the toolholder to a lathe turret or tool indexer. One embodiment of the invention comprises a base adapted to be secured to a rotary lathe table via a mechanism receivable in slots or grooves which can be wedged and compressively secured about selected positions about an engagement surface. A second embodiment comprises a bore securable to a lathe table via both fastening and positioning mechanisms where the bore defines a dovetail groove receivable to a complementary tongue where the toolholder is securable to the bore in a cam locking mechanism.

Abstract: A rotating turret (10) having an outer plate (12) with several interchangeable tool (13) posts mounted to an index plate (22). The index plate (22) is mounted to a first axle (23) that extends through a block (24) and rotates on a set of bearings (28) mounted inside the block (24). The index plate (22) provides for rotation of the turret (10) between the several tool (13) positions. The index plate (22) is locked into position by a set of pins (34, 37) that fit into apertures (31) in the index plate. The pins (34, 37) are spring-biased toward the index plate (22) by springs (52, 55, and 58). A handle (16) attaches to a second axle (40) to provide a quick release mechanism. The second axle (40) mechanically engages with the pins (34, 37) and a sliding wedge (49) such that when the handle (16) is rotated the pins (34, 37) are retracted from the index plate (22) against the force of the springs (52, 55, 58).

Abstract: A tool-carrying turret for lathes includes a fixed support body provided with a fixed toothed rim a rotatable toothed rim which has a tool-carrying plate (4) fixed to it and rotatable rigidly with an index disc mounted on a coaxial drive shaft of the turret, a stopping device operated by actuating devices and designed to cause stoppage in rotation of the index disc and relative centering of the toothing of the fixed rim and rotating rim at the end of the tool changing phase.

Abstract: A multifunction, compact machining center has a work spindle which can rotate at high speed, or controlled by a C axis servo driver, and a frame-shaped tool magazine, which is composed of a standing part and a rotatable part. Arranged on the standing part are enough internal and external turning tools to complete all turning processes on one workpiece. Driven tools are held on the rotatable part to do drilling, boring, milling, gear hobbing, grinding, lapping etc. on the same workpiece at arbitrary angles. Additionally, work units for quenching, laser machining, gear shaping, bevel gear cutting, measuring, loading and unloading can also be employed on the tool magazine. By means of movements of the tool magazine relative to the work spindle in the plane perpendicular to the Z axis, each cutting tool or working unit can be put into the working area of the workpiece sequentially so as to complete all machining, measuring, loading and unloading.

Abstract: A tool fixing device for machine tools has a tool holder with a tool holder body for bearing the tool, and a tool carrier with a tool station. The tool station has a support surface and a receiver for receiving a shaft from the tool holder. An aligning device operative between the tool holder body and the tool carrier is used to position the tool holder body relative to the tool carrier, such that the tool holders in the respective tool station of the tool carrier need not be readjusted each time they are inserted. The aligning device has two aligning elements, one on the tool carrier, and the other on the tool holder body. When the shaft from the tool holder is clamped in the receiver on the tool station, the aligning elements fix the tool carrier so as to be aligned in a single position using form-fitting elements which engage in one another without clearance.

Abstract: A compressed air valve circuit actuated assembly for operating a rotary tool turret of a lathe is disclosed which includes an actuator movably disposed in a housing and fixedly connected through an opening to the turret. The actuator moves linearly between a recessed position, wherein a first actuator attached ring of spaced apart teeth is closely intermeshed with a second housing attached ring of identical teeth, and an advanced position wherein the rings are decoupled to permit turret and actuator rotation. A series of compressed coil springs confined between the actuator and housing biases the actuator toward the recessed position. Compressed air supplied from the circuit to a housing chamber moves the actuator to the advanced position in opposition to the springs. A cross-piston, disposed in a bore formed in a housing surface portion and movable between start and ending positions, is coupled by an indexing pin to a slot in the actuator only when the actuator is in the advanced position.

Abstract: A numerically controlled lathe with a stationary headstock and a work spindle, mounted rotatably in the headstock, for holding a work in a first clamping includes a counter spindle for holding rotatably the workpiece in a second clamping. The lathe also has a tool turret, which can be indexed around an axis and which is mounted on a first slide, movable in two directions that are perpendicular to each other. This first slide also supports the counter spindle. A second tool holder is mounted next to the work spindle. The counter spindle and the tool turret are mounted on the first slide in mutually variable configuration; and the second tool holder is mounted on a second slide, which can be moved at least in a direction perpendicular to the work spindle axis. This second tool holder holds two groups of tools, one of which is mounted and designed for machining the work at the work spindle and the other is mounted and designed for machining the work at the counter spindle.

Abstract: Tool turret device for machine tools, comprising a turret head bearing device, to which a turret head is attached for rotation about an indexing axis, a turret head indexing device as well as locking means for the turret head, the turret head indexing device having an indexing disk similar to a Maltese cross, which is rotatable about the indexing axis together with the turret head and has a slot open at its circumference for each tool station of the turret head, and a rotarily drivable driver with a driver finger for insertion into the indexing disk slots, wherein for shortening the indexing times and saving on separate locking means the driver has at least two driver fingers arranged at equal distances from the driver axis and the indexing disk slots are equipped at their free ends with arc-shaped curves widening the slot width outwardly in such a manner that angle of rotation regions, in which the driver secures the indexing disk against any rotation, adjoin an angle of rotation region of the driver, over w

Abstract: A tool turret has a turret housing and a hollow supporting column. A head is provided at one end of the supporting column. The other end of the supporting column is connected with the turret housing. A tool face is mounted rotatably relative to the head and is lockable with this head. The tool face has at least one recess for a tool. A torque overload protection arrangement is provided between the hollow supporting column and the head and/or between the hollow supporting column and the turret housing.

Abstract: A turret head device for machine tool comprises a housing; a motor mounted on a rear surface of said housing; a first and second planetary gear mechanisms, both integrated into the housing; a turret for mounting tools; and a tool driving shaft integrated into the turret.Wherein said turret is connected with said motor through said first and second planetary gear mechanisms and the tool driving shaft is connected with the motor through the first planetary gear mechanism.

Abstract: A dragon-gate processing machine having a dragon-gate support structure, at least one lateral girder coupled to the support structure for mounting tool holding members and automatic tool exchange devices, a plurality of working tables mounted below the dragon-gate support structure, driving apparatus for driving the working tables, a mechanical transmission for coupling the drive apparatus to the working tables, an auxiliary rotary arm mounted to the dragon-gate support structure for holding auxiliary processing devices, and control means for controlling operation of the dragon-gate machine. The dragon-gate machine allows processing such as drilling, lathing, and planing to be performed on a workpiece mounted on the working table. The novel allows such processing to be performed at any angle and at any desired direction according to the processing requirements of the workpiece.

Abstract: Tool turret for a machine tool, the turret head of which is designed to be equipped with drivable tools, wherein for shortening the times required for indexing the rotatable turret head a three-part HIRTH tooth system is used to lock the turret head and a coupling which is constructed such that it can be disengaged by rotation of the turret head is provided between a drive shaft of the tool turret and a tool spindle of a drivable tool.

Abstract: Device for the precise coupling of two cylindrical parts, especially to form compound tools, with the aid of two cylindrical bodies, one of which has a seat for accepting a pin projecting from the other cylindrical body, it being provided that the front end of the body with the coupling seat be given an inclined wall engageable with an inclined wall branching away from the base of the coupling pin of the other cylindrical body, that the transverse hole in the projecting pin accepts a threaded bush which engages with a cylindrical-headed screw, and that the free ends of the threaded bush and of the screw head have inclined circumferential surfaces engageable with inclined circumferential surfaces defining the transverse holes on the side facing the coupling seat.

Abstract: A method for machining a rotation-symmetrical workpiece surface includes the steps of rotating the workpiece during machining, roughing the workpiece surface, smoothing in a longitudinal turning process the workpiece surface with a cutting tool having a cutting blade with a divided edge arrangement, advancing the cutting tool in a radial direction relative to the workpiece surface in the smoothing step, and moving the cutting tool in the axial direction of the workpiece surface for carrying out the longitudinal turning process. The cutting tool for carrying out the aforementioned method comprises at least one first cutting blade for the smoothing step, the first cutting blade having at least two adjacent edges axially spaced at a distance from one another.

Abstract: A computerized numerical control automatic complex lathe has a main spindle for gripping and rotating a work to be machined. A first machining tool performs a main machining of the work. A turret tool rest has an outer peripheral surface for holding a set of secondary tools along the outer peripheral surface thereof. The turret tool rest is selectively indexable to bring a selected secondary machining tool into a position to effect a secondary machining of the work and is selectively movable relative to the work to enable the selected secondary machining tool to perform the secondary machining of the work. The turret tool rest further includes a plurality of tool holders for holding a plurality of secondary tools. A back spindle is disposable on a side of the work opposite the main spindle for holding a selected secondary machining tool selected from the plurality of secondary tools.

Abstract: A non-contact rotation waterproof and dustproof method and a machine tool using the same. A viscous fluid is continuously or intermittently supplied to a labyrinth clearance formed between a rotating body and a fixed body from a fluid supply device so as to fill the viscous fluid into the labyrinth clearance to obtain a good non-contact rotation waterproof and dustproof method even when the rotating body is rotated at a low speed or is stopped.

Abstract: A tool turret has a hydraulically slidable interlocking or clamping member in alignment with the rotary axis of the turret head for interlocking or clamping the turret head to the housing and for charging the turret head with an axially reactive force by hydraulic pressure working on the interlocking or clamping member. The axially reactive force counters the axial force exerted by the interlocking or clamping member on the turret head. A hydraulically slidable piston slides relative to the housing and exerts on the turret head in its interlocked or clamped state a force applied in the same direction as the reactive force.

Abstract: A turret-lathe coolant system is disclosed for selectively directing a stream of coolant to an interface between a workpiece on a turret lathe and a cutting tool positioned by a turret to cut the workpiece. In the preferred embodiment, the system includes a coolant-discharge assembly secured to the turret, wherein the assembly has a plurality of semi-rigid coolant tubes that are affixed to coolant-distribution ports, to distribute coolant fluid to a plurality of cutting tools on the turret. A coolant plunger is affixed within the coolant-discharge assembly that includes coolant-discharge outlets that pass coolant fluid from within an interior chamber in the plunger through adjacent distribution ports in the assembly.

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 stand (10) that includes an upwardly projecting support member (24) shaped into wedge portions (36, 38), each wedge portion configured to fit within the groove (18) formed in a conventional holder (14) for a lathing tool. The stand (10) provides a compact and convenient mechanism for storing holders that are not fastened to the lathe.

Abstract: A tool turret includes two toothed rims concentric to the rotary axis of its turret head and arranged radially adjacent to one another. One rim is immovable relative to the turret head. The other rim is immovable relative to the turret housing. The teeth of the toothed rims point toward a position-locking member arranged in an axial direction adjacent and coaxial to both of the toothed rims. The toothed rims can be held by a piston which is axially slidable to a position-locking setting, in which its teeth engage the teeth of the two toothed rims without any play. The piston is part of a pneumatic assembly. The angle formed by the sides of each tooth of the toothed rims and the position-locking member is reduced from the conventional value of 60.degree.

Abstract: A tool for use with a tool holder has a body to which at least one blade such as a circular saw blade or milling cutter is clamped to prevent the blade from turning when a selected tooth is brought into cutting or grooving contact with a rotating work piece, the blade is of a type having its teeth so spaced and arranged that each tooth is spaced 90.degree. from another tooth. The body of the tool has first and second parallel clamping surfaces through which a straight slot opens. A first or front clamping member has a hub on which a blade is rotatably mounted and which fits the slot and is held thereby against turning. The two clamping members are connected by a threaded member by which the clamping members are drawn towards each other to clamp the blade against the first clamping surface. The slot is disposed and dimensioned so that, in use, it is normal to the axis of the work piece with one end above and the other end below that axis.

Abstract: Disclosed is a structure of a turret head provided with turning tool mounting mechanisms and revolving tool mounting mechanisms on the turret, wherein a turning tool can be mounted on the revolving tool mounting mechanism rotatably mounted on the turret. The turning tool is mounted on the turret at a holder of the tool for positioning and at the same time is tightly affixed to the revolving tool mounting mechanism at the tapered portion of the tool.Also provided is an engaging and disengaging mechanism for engaging and disengaging a gear of a unit drive shaft relative to a gear of a revolving tool mounting mechanism in preparation for mounting a revolving tool different in direction.This feature enables a revolving tool different in direction to be driven.Another feature is a provision of a lock gear. Locking the lock gear allows the revolving tool mounting mechanism to be employed for turning tools. The revolving tool mounting mechanism can be used for revolving tools when the lock gear is unlocked.

Abstract: A turret tool post for a machine tool has a turret having a plurality of turret faces each equipped with a tool for machining, a turret shaft for rotating the turret, a cam follower provided on the turret shaft, a cam having a cam surface engaged with the cam follower to cause the cam follower to rotate, and an indexing motor for driving the cam to index the turret faces. A straight raceway portion is formed on the cam surface of the cam so that the cam follower is not driven to rotate through a predetermined angle. Also disclosed is an apparatus for controlling indexing of the turret tool post which has a turret controller for controlling the rotation of the indexing motor. The speed of the indexing motor is controlled in accordance with whether a door attached to a cover covering the turret and other elements is open or closed.

Abstract: A complex machine tool has a single frame having a chip, collecting space at a center portion thereof, first and second spindle stocks on the frame, relatively free to move and drive in a Z axis direction and holding the chip collecting space therebetween, workpiece spindles on the spindle stocks free to rotate and drive and facing each other, and tool rests. The tool rests have turrets and can assume various kinds of movement. Complicated and varied types of machining can be performed combining the rotation control of the workpiece spindles and the spindle stocks.