Abstract: A working unit intended to be mounted on a movable machine operated tool support comprises a casing (10) which is attached to the tool support and which supports a pneumatic turbine motor (23, 24, 51) with a rotor (19), and a shank end mill type machining tool (22,21) with a cutter portion (21) extending out of the casing (10) and a shank portion (22) rotatively journalled in the casing (10), whereing the machining tool shank portion (22) is rigidly integrated with a turbine whell (24) to form the turbine rotor (19), a flow control valve (48) is arranged to deliver pressure air to the turbine motor (23, 24, 51), and the turbine rotor (19) is provided with a generator device for delivering a speed responsive output voltage to a control unit (55) which is arranged to make the flow control valve 848) adjust the power supply to the rotation motor (23, 24, 51) so as to maintain the rotation speed at a desired predetermined level.

Abstract: A spindle protective structure in a spindle-through coolant feeder capable of preventing coolant form invading a spindle and a spindle motor for an excessive overflow of coolant. Coolant is supplied into a through hole formed axially in the spindle or a shaft connected to the spindle through a stationary member and a rotary member of a rotary joint supported by a housing. A seal member having elasticity is provided on a circumferential surface of the spindle or the shaft. Coolant which leaks through the seal member is splashed by a fringer provided in the housing. When a large amount of coolant is overflowed in the housing, a pressure of the coolant in a first chamber of the housing increases to press a lip of the seal member towards the circumferential surface of the spindle or the shaft to prevent leakage of coolant into a second chamber of the housing.

Abstract: A process for the manufacturing of longitudinal profiles such and tongue and groove on boards wherein the process includes the steps; a) Moulding a substantial part of the profile cross-section by means of milling with a milling tool. b) Fine moulding undercuts in at least the groove of the board by means of broaching utilising at least one broaching tool.

Abstract: A device for processing a workpiece which, for this purpose, is fixed inside a working space (or enclosure) in a machining center and is processed with the aid of a tool. To remove processing residues, a gas stream is made to flow through working space, which is formed, for this purpose, like a nozzle. So as to improve further the removal of undesired processing residues from working space, without at the same time increasing the performance of the devices generating air stream, the working space is widened after the narrowest cross sectional area, in the flow direction of gas stream, similar to a Laval nozzle, machining center being situated in the region of the greatest flow speed. Because of this arrangement, in addition, an undesired limitation of working space available for machining center may be avoided.

Abstract: The holder body of a tool holder includes one or more first fluid passages and one or more second fluid passages, wherein the first and second fluid passages are communicated to each other inside the holder body and open to the outer surface of the holder body. A cooling fluid is supplied from a fluid passage formed in a fluid guide of the cooling apparatus to either the first fluid passage or the second fluid passage, flows through a communicating portion of the first and second fluid passages into the other of the first and second fluid passages, and runs out into the other fluid passage of the fluid guide.

Abstract: A spindle assembly for a machine tool wherein a rear end portion of the spindle is structured to allow the spindle to be operated at higher speeds, thereby enhancing precision. The spindle assembly includes a spindle mounted within a spindle housing able to undergo rotation by a rotor and bearings. A collet directly secures and releases a tool inside the spindle. A draw bar, one end of which is connected to the collet through a sleeve within the spindle, operates the collet. A piston and cylinder connected to the draw bar moves the draw bar in forward and reverse directions. A rotary joint supplies cutting oil to the spindle. An adapting arrangement connects a rear end of the draw bar and the rotary joint to allow forward and reverse movement with respect to the spindle.

Abstract: A coolant tube (21) is to be arranged in a tool holder, the coolant tube (21) having an inlet opening (23) for coolants, a cover (31) at the inlet opening (23) for preventing chips from entering into the coolant tube (21), and an exchangeable insert tube (59) arranged within the coolant tube (21) and holding the cover (31).

Abstract: A spindle device of a machine tool stably spouting spray coolant from the tip of a tool (26) in a tool holder (25) and suppressing a waste of the spray coolant, wherein the tool holder (25) is fixed to the tip part of a spindle (2) mechanically detachably through a clamp device (KR), an extension passage (101) is formed in the state that an in-spindle spray coolant passage (100) formed in the center part of the spindle (2) is extended forward (f2), and the in-spindle spray coolant passage (100) is formed to communicate with an in-holder spray coolant passage (102) formed in the center part of the tool holder (25) through the extension passage (101).

Abstract: A machining tool cutter for primary use in the industry of ferrous and non ferrous metals machining or the like. The much improved machining tool cutter along with a compressed air supply, a machining lubricant distribution apparatus, an on/off control valve, and other pneumatically related components, creates a system which ejects a hi velocity jetstream of air or air and machining lubricant mist to flow from a nozzeled exit hole on the machining tool cutter to clean away it's own part forming debris by propelling them away from the machining tool cutter and simultainiously utilizing the machining lubricant mist to lubricate the cutting edges of the machining tool cutter while it performs it's part forming operations such as internal boring, grooving, chamfering, etc. etc . . .

Abstract: A spindle device of a machine tool capable of stably injecting atomized cutting fluid from the tip of a tool device 13 when a variation in fluidity of the atomized cutting fluid occurs temporarily in atomized cutting fluid passages e1, e2 or the supply of the atomized cutting fluid into the atomized cutting fluid passage e1 is stopped and restarted, wherein the atomized cutting fluid passages e1, e2 having a single passage cross section are formed in the area ranging from the spindle 1 to the tip of the tool device 13 through the atomized cutting fluid passages e1, e2, and a vacant chamber group transmission layer part 14 having a large number of vacant chambers 142 stacked thereon in multiple stages or in the state of communicating with each other and allowing the atomized cutting fluid to pass therethrough through the groups of the vacant chambers 142 is formed in the atomized cutting fluid passage e1 or e2.

Abstract: A spindle device of a machine tool, which can prevent the liquefaction of atomized cutting fluid in atomized cutting fluid passage downstream of a straightening unit 14, enhance a responsiveness to an ejecting start or stop instruction, and prevent a waste of cutting fluid. The spindle device for a machine tool has atomized cutting liquid passage (e1, e2) each having a single-shape passage section and formed inside the device ranging from the spindle 1 to the tip end of a cutting tool 13 mounted thereto in one piece, and is operated so as to eject atomized cutting tool 13 via the atomized cutting fluid passages (e1, e2), wherein a straightening unit 14 formed with a plurality of small-diameter passages h are provided in the middle of the cutting liquid passages (e1, e2).

Abstract: The invention pertains to a machine tool for processing workpieces with tools, wherein the machine tool has a spindle housing that contains a spindle shaft and accommodates at least one tool as well as a drive device that causes a rotational movement of the spindle shaft. The machine tool is characterized by the fact that the drive device (3) contains a hydraulically operated displacement machine or swash plate device.

Abstract: The present invention provides a method for machining a workpiece, which comprises the steps of: separately supplying compressed air and a liquid into a through-hole longitudinally extending through a drawbar within a spindle of a machine tool; allowing the compressed air and the liquid to separately flow through the through-hole; mixing the liquid with the compressed air in a distal end portion of the through-hole so as to make the liquid into a mist form; ejecting the resulting mist from a distal open end of the through-hole to supply the mist to a distal end of a tool along an outer periphery of the tool or through the inside of the tool; and machining the workpiece while ejecting the mist from the distal end of the tool to supply the mist to a machining part.

Abstract: An automatic cutting liquid supply apparatus which automatically supplies a cutting liquid to each tool of a machine tool in accordance with predetermined optimal cutting liquid supply conditions that include variations over time during operation. The optimal supply conditions of the cutting liquid supply quantity (Q) are preset for each type of tool (1) in a control means (5). The control means (5) is constructed from a main control section (5a), which mainly controls the driving of the main shaft units (2) on which the tools (1) are mounted, and an automatic supply control section (5b), which automatically controls the cutting liquid supply quantities (Q). An input signal (Vin) corresponding to the supply conditions (preset) is inputted into the variable frequency generating means (5c) from the automatic supply control section (5b).

Abstract: A spindle device and a tool holder of a machine tool stably ejecting spray coolant from the tip of a tool (19) in a tool holder (18) and suppressing a waste of the spray coolant, wherein the tool holder (18) is fixed to the tip part of a spindle (2) mechanically detachably through clamp means (KR), an extension passage (104) is formed in the state that an in-spindle spray coolant passage (102) formed in the center part of the spindle (2) is formed to communicate with the in-holder spray coolant passage (103) through the extension passage (104).

Abstract: Arrangement for a tool spindle equipped with a rotor (22) of an electric driving motor (32). It is distinguished in that the rotating part (1, 3) of the tool spindle is accommodated in a unit (4) that is stationary in relation to the rotating part, that the rotating part (1, 3) has at least one axial channel (12a, 12b or 12d) extending to the area for the rotor (22) for leading cooling fluid to the area (20a, 26), that the stationary unit (4) is provided with an inlet (16, 14 or 25) for leading cooling fluid to the channel (12a, 12b or 12d), that a gap sealing is arranged on either side of the inlet (16, 14, 25) between the stationary unit (4) and the rotating part (1, 3) and forms a dynamic bearing during the rotation of this, and that a channel is arranged to lead away the coolant fluid.

Abstract: The present invention relates to a method and a device in the chip-removing machining of a work-piece by means of a rotatable tool with a shaft arranged in a headstock. The tool is displaceable in an axial direction both towards and away from the work-piece, and in a plane substantially perpendicular to the arbor. Arranged around a machining point is an enclosure. The enclosure has a first opening that is designed to press against the work-piece around the point to be or being machined. A second opening in the enclosure is made in a wall substantially perpendicular to the shaft. This opening is designed, during machining, to press against a plane plate arranged behind the tool and around the headstock, substantially perpendicular to the arbor, so that during machining there is a substantially enclosed space in the area around the tool and the machining point. The device includes a line for delivering cutting fluid to the machining point.

Abstract: A tool holder unclamp mechanism for a milling machine eliminates compressive forces upon the coolant seals conventionally installed in integral tool and workpiece coolant systems for such machines. The present mechanism is particularly well adapted for installation in Haas and similar milling machines, and comprises a conventional Deublin union modified for installation atop the drawbar actuating piston of the machine, with the drawbar actuating mechanism imparting its forces peripherally around the concentric Deublin union. The Deublin union includes an internal coolant bypass, thereby eliminating coolant leakage past the conventional seal location and into the spindle bearings. As the carbide coolant seals between non-rotating and rotating components are contained within the Deublin union, no impact forces are imparted to those seals during tool change operations when the present invention is installed in the machine, thereby greatly prolonging seal life and reducing seal and spindle bearing replacement.

Abstract: In a finishing apparatus, a plurality of works are retained at distances from each other in a direction of an X-axis. A single spindle is disposed on a table movable in the direction of the X-axis, the spindle has an axis parallel to an axis of each of bores to be finished, and is capable of being advanced and retracted axially. A measuring device is provided that measures an inside diameter of each finished bore and which is advanced and retracted independently from the spindle in a direction along the axis of each finished bore. A combination tool is mounted at a tip end of the spindle and finishes an inner surface of any of the bores to be finished, even if the position of insertion of the combination tool into each of the bores is changed.

Abstract: An endmill having a shank and a milling head having cutting teeth continuous from a peripheral surface toward a forward tip face, wherein the endmill has a through hole extending from the forward tip face of the head to the shank past the head along a rotation axis of the endmill. The head and shank comprise separate component parts and the head is mounted on the shank by inserting a screw member from the tip end face into the hole and fixing the screw member to the shank.

Abstract: The invention relates to an actuating device for a tool or a workpiece tensioning jack in a machine tool spindle. The actuating device includes a pressure piston which is arranged inside a housing for actuating the tool or workpiece tensioning jack. In order to provide a compact, space-saving actuating device enabling leakage fluid to be drained off in a simple manner, several interspaced continuous bores are arranged concentrically around a center axis in a side wall of the housing. Pressure plungers which are axially displaceable with the aid of the pressure piston are disposed therein and the housing contains at least one leakage channel with a section extending between the pressure plungers in a radially outer direction.

Abstract: A process for edge-machining an optical (spectacle) lens including preliminary machining of an edge of the lens rotatable in controlled manner about a rotational axis of a workpiece by a first edge-machining tool adjustable radially relative to the rotational axis of the workpiece, whereby the lens is given a circumferential contour which corresponds to the circumferential contour of a lens holder apart from a slight degree of oversizing, contactless measurement of the preliminarily machined lens edge, and finish-machining of the lens edge, taking account of the detected edge data of the preliminarily machined lens, by means of a second edge-machining tool adjustable radially relative to the rotational axis of the workpiece, whereby the lens is provided with a circumferential contour substantially complementary to the circumferential contour of the lens holder.

Abstract: A tool tip conductivity sensor and method for determining when a tool tip of a machine contacts a workpiece. The sensor has at least two external connectors, one to the workpiece and the other to the machine. When the tool tip grazes the workpiece surface an electrical circuit is completed. The signal from the contacts is supplied to a trigger circuit, which preferably compares the signal to a DC offset. The trigger signal from the trigger circuit is supplied to a notification circuit, which provides a signal indicating contact. Preferably, the notification circuit receives the trigger signal and provides a steady “On” condition for an LED or activates an audible device, such as a piezoelectric transducer. The notification circuit can also provide a reference for further machining to a controller of the machine using the sensor as a contact probe.

Abstract: A method and apparatus for directing a coolant stream onto a cutting tool is made up of a nozzle pivotally mounted on a machine tool, the nozzle being automatically adjusted in response to movement of the machine tool via a retractable plunger or other linear drive member so as to cause the coolant stream to intersect the interface between a workpiece and each cutting tool that is brought into cutting position on the machine tool; and the nozzle is pivotal between a reference position and a different intermediate position corresponding to the length or diameter of the cutting tool which is advanced into cutting position.

Abstract: A fixture for use with a rotary cutting tool for deburring, chamferring or beveling a work piece utilized with a drill comprises a member having opposite sides with a recess defined a first of the sides by two surfaces at right angles to each other to define guide surfaces for a work piece. The opposite side resides in a plane essentially perpendicular to a plane bisecting the angle between the surfaces. A semi-cylindrical recess is defined in the member in the opposite side intermediate the ends thereof about an axis which is essentially perpendicular to a plane bisecting the angle between the surfaces. The passage extends through a portion of the surfaces and defines an opening in the surfaces whereby a rectangular cross section work piece contacting the guide surfaces will extend through the opening into the passage.

Abstract: A machining method and a mist supplying apparatus for use in the method, which provide an excellent cooling effect for a rotation shaft without the need for an ejection nozzle. The machining method comprises the steps of: providing a machine tool which includes a rotation shaft (2) rotatably supported by a casing (1); causing compressed air and a liquid to separately pass through the inside of the casing (1) and into the rotation shaft (2); mixing the liquid with the compressed air within the rotation shaft (2) so as to form the liquid into a mist; feeding the resulting mist along the outer periphery of the tool or through the inside of the tool to a distal end of a generally cylindrical tool fixed to the rotation shaft (2); and supplying the mist to a machining part from the distal end of the tool.

Abstract: A lubricant supply apparatus 1 includes a tank holder portion 3 and a lubricant tank portion 2. In case where a tool holder clamp device 62 provided on a spindle shaft 61 pushes against an abutting member 35 disposed in the lubricant supply apparatus 1, lubricant filled in a pressure chamber 11 formed in the lubricant supply apparatus 1 can be jetted out from injection holes 39, —formed in the abutting member 35. The thus jetted-out lubricant is supplied to the tool holder clamp device 62.

Abstract: A machine tool fluid distribution apparatus comprising a housing, a pump, a fluid distribution system, and a controller. The pump is mounted in the housing. The pump is adapted for discharging, from a discharge end of the pump, fluid at a different pressure than a fluid pressure available in a machine tool. The fluid distribution system is connected to the discharge end of the pump, the fluid distribution system distributes fluid from the pump to workstations of the machine tool. The fluid distribution system has at least one pair of outlets at the housing for distributing fluid to the workstations of the machine tool. The controller is controllably connected to the fluid distribution system for controlling the fluid distribution system. The controller controls fluid to at least one of the at least one pair of outlets independently from fluid to another one of the at least one pair of outlets of the fluid distribution system.

Abstract: Supply unit for a tool spindle wholly or partially equipped with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching the tool with a fluid supply system for displacing the pulling rod (3), with a fluid supply system for cooling a rotor (22) of a driving source supported on the spindle axle for driving the spindle axle, a fluid supply system for cooling the tool, and a gas supply system for blocking fluid leakage in gaps between parts that move in relation to one another. The supply unit includes, for one or more of the said systems, at least one sensor that senses if a malfunction exists in the fluid and/or gas supply system, and, for one or more of the said systems, an accumulator (704, 164, 243) that from indicated malfunction signals obtained from one or more sensors feeds into the system or systems complementary and replacement fluid respectively gas to the tool spindle at the same time as the sensor or sensors deactivate the driving source of the spindle axle.

Abstract: Tool spindle with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching a toot at the axle of the spindle. The end (10) of the pulling rod (3) that is opposite to the tool extends into a unit (4) that accommodates the end of the pulling rod and that is stationary in relation to the rotating pulling rod, in which there is a spool (9) surrounding the pulling rod (3) for sensing the axial position of this in the spindle axle (1), the pulling rod is provided with an axial, central hole (6) for leading a coolant agent under pressure to the bit of the tool, whereby the coolant is supplied to the bore (6) of the pulling rod (3) via the stationary unit, that the pulling rod (3) is provided with a piston (11) accommodated in a cylinder chamber (13).

Abstract: A rolled plate joining apparatus for joining rolled plates by cutting one surface of the tailing end of a preceding rolled plate and the other surface of the leading end of a succeeding rolled plate while traveling in the width direction and by overlapping the resulting cut surfaces to be joined. The joining apparatus includes machining apparatuses each having a cutter for cutting the undersurface of the tailing end and the upper surface of the leading end, a traversing apparatus for running said machining apparatuses in the plate width direction to move said machining apparatuses to waiting positions outside of the plate width, and cutter cooling apparatuses provided in said waiting positions for cooling said cutters.

Abstract: A machining unit on a machine tool, especially a universal milling and drilling machine, comprising a motor-driven work spindle rotatably mounted in a casing of a spindle head, an adapter unit comprising a motor-driven adapter spindle and insertable into the work spindle, a first connecting part disposed on the spindle head and containing plug-in connections connected by lines to supplies of working media and a second connecting part disposed on the adapter unit, and containing mating plugs which can be coupled to the plug-in connections for releasably connecting the adapter unit to the working-media supply. A clamping device for releasably holding the plug-in connections and mating connections in the coupled position is disposed on at least one of the two connecting parts, thus providing a secure connection between the plug-in connections disposed in the spindle casing and the mating connections disposed on the adapter unit.

Abstract: A cutting-oil coater that prevents oil spray from liquefying during conveying and improves the efficiency of work such as oil-refilling by forming a spray feed portion and an oil storage portion separately from each other and making it possible to adjust the arrangement position. A cutting-oil coater includes a spray feed portion, an oil storage portion, an oil feed means for feeding oil to the oil spray feed portion, and a spray conveying passage for conveying the oil spray inside the spray feed portion to the outside of the spray feed portion, wherein the spray feed portion and the oil storage portion are formed separately from each other and can be arranged in different positions respectively, and the arrangement can be adjusted. Thus, the spray feed portion is arranged in the vicinity of the cutting position of a machining tool and the fluid feed unit 11 is arranged at a place where a worker can carry out a work such as oil-refilling.

Abstract: The present invention relates to a method and a device in the chip-removing machining of a work-piece by means of a rotatable tool with a shaft arranged in a headstock. The tool is displaceable in an axial direction both towards and away from the work-piece, and in a plane substantially perpendicular to the arbor. Arranged around a machining point is an enclosure. The enclosure has a first opening that is designed to press tightly against the work-piece around the point to be or being machined. A second opening in the enclosure is made in a wall substantially perpendicular to the shaft. This opening is designed, during machining, to press tightly against a plane plate arranged behind the tool and around the headstock, substantially perpendicular to the arbor, so that during machining there is a substantially enclosed space in the area around the tool and the machining point. The device includes means of delivering cutting fluid to the machining point.

Abstract: A frame-like nozzle for liquid coolant disposed above a machining tool is connected to a vertical main shaft. The nozzle is coaxial with the main shaft and directed downward. The nozzle has an inner peripheral wall, an inner flange formed in or close to the inner peripheral wall, an upper framework having a ceiling serving as a guide surface, and a lower framework. The liquid coolant flows upwardly out from the inside channel in a planar radial manner. The upper framework has an outer peripheral wall serving as an outside guide surface for downwardly bending the liquid and cooperating with the flange to define an outside channel. A flow agitating recess is formed in the wall surface. The lower framework includes a level difference, and forms a floor by which the coolant reaching the lower end of the outer peripheral wall is guided radially inward through the difference. Coolant is allowed to flow downward. The inner edge of the floor defines a circulatory waterfall opening.

Abstract: The holder body of a tool holder includes one or more first fluid passages and one or more second fluid passages, wherein the first and second fluid passages are communicated to each other inside the holder body and open to the outer surface of the holder body. A cooling fluid is supplied from a fluid passage formed in a fluid guide of the cooling apparatus to either the first fluid passage or the second fluid passage, flows through a communicating portion of the first and second fluid passages into the other of the first and second fluid passages, and runs out into the other fluid passage of the fluid guide.

Abstract: The invention pertains to a machine tool for processing workpieces with tools, wherein said machine tool has a spindle housing that contains a spindle shaft and accommodates at least one tool as well as a drive device that causes a rotational movement of the spindle shaft. The machine tool is characterized by the fact that the drive device (3) contains a hydraulically operated displacement machine.

Abstract: A method of high speed milling, and apparatus for performing the method, comprises directing a jet of hgih pressure coolant at the cutting zone of a rotary cutting tool. The jet of coolant has a delivery pressure of up to 500 bar at a flow rate of up to 60 liters per minute. The method is especially effective when used with a rotary cutting tool having at least 20 cutting edges and up to 100 cutting edges.

Abstract: A coolant tube (21) is to be arranged in a tool holder, the coolant tube (21) having an inlet opening (23) for coolants, a cover (31) at the inlet opening (23) for preventing chips from entering into the coolant tube (21), and an exchangeable insert tube (59) arranged within the coolant tube (21) and holding the cover (31).

Abstract: A rolled plate joining apparatus for joining rolled plates by cutting one surface of the tailing end of a preceding rolled plate and the other surface of the leading end of a succeeding rolled plate while traveling in the width direction and by overlapping the resulting cut surfaces to be joined. The joining apparatus includes machining apparatuses each having a cutter for cutting the undersurface of the tailing end and the upper surface of the leading end, a traversing apparatus for running said machining apparatuses in the plate width direction to move said machining apparatuses to waiting positions outside of the plate width, and cutter cooling apparatuses provided in said waiting positions for cooling said cutters.

Abstract: A tool for milling and drilling where the rotating tool has a bearing surface provided to cooperate with another bearing surface to take up radial cutting forces. The two surfaces are essentially axially non-slidable when the cutting tool is engaging the workpiece.

Abstract: A tool for milling and drilling where the rotating tool has a bearing surface provided to cooperate with another bearing surface to take up radial cutting forces. The two surfaces are mutually separated by a fluid and are essentially axially non-slidable when the cutting tool is engaging the workpiece.

Abstract: A cutting tool for a machine tool including a tool body, at least one cutting edge and a cutting medium supplier. The tool body has one and another end portions along an axis thereof and is configured to be attached to a machine tool at the another end portions to be rotatable. At least one cutting edge is provided on the one end portion of the tool body. The cutting medium supplier supplies an atomized cutting fluid or a chilled gas to a place where a work is cut by the cutting edge.

Abstract: There is provided a rolled plate joining apparatus equipped with a truck that can travel reversibly in the rolling direction, tailing end pinch rolls that are mounted on the truck and can be moved vertically with the tailing end of a preceding rolled plate pinched horizontally, leading end pinch rolls that are mounted on the truck and can pinch horizontally the leading end of a succeeding rolled plate, machining apparatuses for cutting one surface of the tailing end of the preceding rolled plate and the other surface of the leading end of the succeeding rolled plate, and a pressure welding apparatus for compressing the preceding rolled plate and the succeeding rolled plate with the machined surfaces of the preceding rolled plate and the succeeding rolled plate overlapped to reduce them approximately to the thickness of the rolled plates, including a tailing end centering apparatus placed between the tailing end pinch rolls and the pressure welding apparatus for pressing the opposite width ends of the tailing

Abstract: An arrangement relating to high-speed tools includes a drive unit having a high-speed spindle, a drive-unit connected adapter that has a supportive part, and a tool that includes the cutting head. The tool is provided with a bearing surface in the close proximity of the cutting head, and the supportive part has a bearing which takes up cutting forces acting radially on the tool and which coacts with the tool-carried bearing surface.

Abstract: A machine tool accessory fluid distribution apparatus comprising a booster pump, a fluid distribution system, and a controller. The booster pump is adapted for discharging, from a discharge end of the pump, fluid at a different pressure than a fluid pressure available in a machine tool. The fluid distribution system is connected to the discharge end of the booster pump, the fluid distribution system distributes fluid from the pump to workstations of the machine tool. The controller is controllably connected to the fluid distribution system for controlling fluid distribution to the workstations of the machine tool. The controller controls fluid delivered by the fluid distribution system to at least one of the workstations independently from fluid delivered by the distribution system to another one of the work stations of the machine tool.

Abstract: The present invention provides a method for machining hard materials using the machining fluids containing long chain alcohol in which the machining fluid is applied to a machining tool and then lubricates the machining of the workpiece by the machining tool and protects the machining tool during machining. The method is particularly useful when used with machining tools having a Mohs hardness of at least 9 and is most particularly useful when used with diamond machining tools.

Abstract: In order to process a solid processed object with a simple construction, and to process a solid and flat work while effectively collecting particulate scraps, in a machine tool for processing work in which a working table on which the work is mounted and a spindle in which a cutter is installed move relatively to each other, a bellow which telescopes freely is provided, one open end of which connects to the spindle head so as to surround the spindle, and the other open end of which connects to a working table in such a manner as to surround the work.

Abstract: A propeller with pivoting blades is provided as a cleaning tool (1) for the work area of metal cutting machines, where the angle of adjustment for the pivoting blades is such that an air jet is generated supporting the propeller blades (15) in folding open. The propeller blade (15) is arranged in a tool changer stacker instead of a common tool or on a tool spindle and serves to automatically clean the work area by a blowing process.

Abstract: An oil conduit mechanism for spindle head of five-axis machine tool integrates cutting liquid conduit, lubricating oil conduit and braking oil conduit within the spindle head. Those conduits comprises ducts to guide cutting liquid, braking oil and lubricating oil to the processing location for cooling and lubrication. The oil conduit mechanism further comprises a lubricating oil recycling conduit to recycle the lubricating oil for repeated use.