Abstract: A polishing pad conditioning apparatus includes a laser beam generating unit for providing a laser beam, a fluid delivery system for providing a fluid stream and a vacuum line for removing debris. The laser beam may directly impinge on a surface of a polishing pad thereby creating cutting action, while an atomized fluid stream provides cooling and pad debris along with fluid are removed thru the vacuum line. Alternatively, the laser beam may be combined with the atomized fluid stream in a region above the pad surface to substantially impart part of its energy to the fluid stream, generating high energy droplets which provide “cool” cutting action on the pad surface.

Abstract: The invention relates to an internally cooled grinding disc shielding (16), wherein a cooling liquid (14) outwardly flows thorough a recess embodied in the peripheral surface of a grinding disk, the shielding is provided with a collecting groove (17) for the cooling liquid (14) which surrounds the grinding disc (1) under a sector comprises at least one discharge nozzle (20) which is arranged on the output side and by means of which a jet is directed to a work piece (13) or to a grinding point (16).

Abstract: A saw includes a base, a frame assembly disposed on the base, a first rail disposed on the frame assembly, and a table slidingly disposed on the first rail. The table has an upper surface for supporting a workpiece. A support assembly is disposed on the frame. A saw assembly is supported by the support assembly. The saw assembly includes a motor, a cutting wheel driven by the motor, a guard portion covering an upper portion of the cutting wheel, and a fluid delivery assembly configured to direct fluid toward the cutting wheel. The fluid assembly includes a flexible nozzle with a hole. The nozzle is configured to direct airflow created by the cutting wheel away from the hole.

Abstract: A grinder with built-in grinding agent dispenser includes a driving shank having an adapter end for operatively coupling with a grinder machine for being driven to rotate, a grinding shaft operatively coupling with the driving shank for being driven to rotate, an abrasive arrangement provided at the grinding shaft for refining a surface of a workpiece, and a grinding agent dispenser built-in within the grinder for guiding a flow of grinding agent. The dispenser has a supplying channel connected to a supplying inlet, and a grinding channel connected to a dispensing outlet and communicatively connected to the supplying channel, wherein the supplying channel and the grinding channel are provided within the driving shank and the grinding shaft, so that when the grinding agent is feeding into the supplying channel via the supplying inlet, the grinding agent is guided to flow to the dispensing outlet, so as to disperse grinding agent.

Abstract: The invention relates to a hard finish machine (1) for hard finishing of a workpiece (2), comprising at least two different hard finish tools (3, 4) which are arranged on a tool spindle (5), wherein the tool spindle (5) is arranged movable in the direction (Y) of its axis (6) on a tool carrier (7), wherein the tool carrier (7) is translational movable relatively to a machine bed (8) and wherein the hard finish machine furthermore comprises cooling lubricant supplying means (9) for the supply of cooling lubricant to the machining region between the workpiece (2) and the hard finish tool (2, 3).

Abstract: An exemplary grinding device includes a fixed barrel, a rotatable barrel, a grinding plate, an actuator and a cleaning assembly. The fixed barrel defines a chamber and includes a number of inner sidewall substantially parallel to a central axis, each of which defines a holding groove for holding a workpiece. The rotatable barrel is received in the chamber and includes an outer side substantially parallel to the central axis and defines an installation groove. The grinding plate is installed in each of the installation grooves. The actuator is configured for driving the rotatable barrel to rotate and simultaneously move up and down in the first chamber, such that the grinding plates contact the workpieces and grind the workpieces. The cleaning assembly is situated under the fixed barrel for cleaning the workpieces.

Abstract: A scratch removal tool that includes a motor, a housing, a rotatable shaft operably coupled to the motor and movable in an axial direction along a length of the shaft, and a head assembly. The head assembly includes a shroud member having an open end, a pad member, a slurry input, a slurry output, and a seal member. The pad member is positioned within the shroud and mounted to the shaft. Rotation of the shaft rotates the pad member. Axial movement of the shaft moves the pad member relative to the open end of the shroud. The slurry input and slurry are in fluid communication with the pad member. The seal member is positioned at the open end of the shroud.

Abstract: An abrasive tool, suitable for cutting, slotting, grinding and polishing hard materials, such as ceramics, metals, and composites thereof, and methods for making same. The tool includes a plurality of pores positioned in an abrasive region adjacent an outer circumference of the disk. The pores have any predetermined shape, size and position relative to one another.

Abstract: A tool holder is provided with a main body, a taper cone, a working portion, a coolant flow passage, and an adjuster. The taper cone includes a taper portion and movable in an axial direction of the main body. The working portion is mounted on an outer peripheral portion of the main body and includes a taper bottom surface which engages with the taper portion. The taper bottom surface is movable in a radial direction of the main body based on a movement of the taper cone in the axial direction. A coolant flows through the coolant flow passage such that a part of the coolant presses and moves the taper cone in the axial direction and another part of the coolant flows out to an outside so as to adjust a pressing force. The adjuster is fitted into a hole penetrating the main body and includes a coolant flow-out hole for adjusting a flow-out of the coolant.

Abstract: A saw chain sharpening assembly including a support member, a grinding head, a clamping device and a cooling system whereby the saw chain sharpening assembly is adapted to provide a means for efficiently sharpening small and/or large chains.

Abstract: A polishing apparatus is used for polishing a substrate such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a polishing table (100) having a polishing surface (101a), a top ring body (2) configured to hold and press a substrate against the polishing surface (101a), and a retainer ring (3) provided at an outer peripheral portion of the top ring body (2) and configured to press the polishing surface (101a). A fulcrum for receiving a lateral force applied from the substrate to the retainer ring (3) during polishing of the substrate is located above a central portion of the substrate.

Abstract: A multi-head centerless belt grinder for removing material from a workpiece includes a common base and a plurality of grinding heads spaced apart from one another and mounted to the common base. Each grinding head includes a moveable work rest blade, a moveable regulating wheel and a moveable grinding belt positioned by servomotors to centerless grind the workpiece along a common axis of rotation. The grinder is programmable for rapid machine changeover and set-up typically within 2-5 minutes to accommodate a large range of workpiece diameters. This feature results in improved productivity and output as well as greater flexibility for scheduling numerous workpiece diameters within a normal eight-hour work shift. A trough may extend beneath and between each of the grinding heads to more efficiently collect and transfer grinding swarf generated during the grinding process to a filter operable to separate solids within the swarf from coolant.

Abstract: A system, apparatus and method capable of grinding and polishing fabricated vertical surfaces of varying shapes and sizes without the use of hand tools. The system comprises a frame which can be affixed to the surface and which supports a grinding and polishing apparatus. The grinding and polishing apparatus uses air pressure to force a rotating grinding or polishing disc against the surface being worked on. The frame is designed so that the grinding and polishing apparatus can be moved (via, e.g., tracking) both vertically and horizontally to any desired point within the frame. The grinding and polishing apparatus optionally includes a water nozzle and vacuum system to spray and recapture water used to cool the surface being operated on.

Abstract: The present invention is a slicing method and a wire saw apparatus including winding a wire around a plurality of grooved rollers and pressing the wire against an ingot to be sliced into wafers while supplying a slurry for slicing to the grooved rollers and causing the wire to travel in a reciprocating direction, in which the ingot is sliced with controlling a temperature of the ingot by supplying a slurry for adjusting an ingot temperature to the ingot independently from the slurry for slicing while the slurry for adjusting an ingot temperature is supplied to the ingot only at the exit side of the wire caused to travel in the reciprocating direction. As a result, there is provided a method and a wire saw apparatus in which rapid cooling of an ingot especially in a time close to end of slicing of the ingot can be alleviated, consequently degradation of a nano-topography can be suppressed, and further high-quality wafers having a uniform thickness can be sliced when slicing the ingot by using a wire saw.

Abstract: Described herein is a system for generating a plurality of coolant beams that converge at a focal point for advanced heat transfer. The system utilizes a variable strength activation of coolant and superposition of coolant beams generated by multiple actuators for increased cooling strength increase, thereby avoiding activation saturation in conventional systems. Each coolant beams is activated to carry an ultrasonic or megasonic vibration component. In addition, the system includes a coolant activation assembly having a plurality of actuators for generating the coolant beams. The coolant activation assembly further includes supporting components for positioning the actuators so that all of the coolant beams generated by these actuators converge at the focal point. Experimental results show that the system provides significantly improved workpiece quality in a machining process. Compared with the most advanced existing system, this system offers a further improvement of up to 12.

Abstract: A double-side grinding apparatus is designed to be capable of minimizing thermal expansion of hydrostatic pad members and reducing nanotopography in performing wafer grinding. The double-side grinding apparatus is a double-side grinding apparatus for wafers that can simultaneously grind either surface of a wafer to be ground by pressing a grindstone against either surface of the wafer to be ground while hydrostatically supporting either surface of the wafer to be ground in a noncontact manner. Each hydrostatic supporting unit is formed with a hydrostatic pad member facing the wafer to be ground, and a base member placed on the back surface of the hydrostatic pad member. The hydrostatic pad member is made of a ceramic member, and the base member is made of a metal member.

Abstract: Provided is a polishing apparatus comprising a lower stool (12), a motor (18a) and a speed reducer (19a) for driving the lower stool, and a box (17) for covering at least the portion of the lower stool below the working action face. The polishing apparatus polishes a wafer by forcing the wafer to contact the lower stool and by rotating the lower stool. The box has its inside separated by partitions (31a and 31b) into a plurality of regions, and the motor for driving the lower stool is arranged in a region other than the region containing the lower stool. The polishing apparatus can manufacture a wafer of a stable shape, irrespective of the time elapsed from the running start and the presence/absence of the stop of the polishing apparatus.

Abstract: Disclosed in one embodiment is a computer numerically controlled machine having a coolant nozzle that is mounted on a turret of the machine and that is rotatable relative to the turret under the control of a computer control system. The nozzle is fluidically connected to a source of a coolant. The machine includes a computer control system that is operatively coupled to the various components of the machine including the nozzle. In some embodiments, the nozzle may be moved to cause a constant contact angle with respect to one of said tool and said workpiece. In other embodiments, the nozzle may be moved to cause a constant coolant time to interface. Also disclosed are related methods.

Abstract: In a method for multiple cutoff machining a rare earth magnet block, a cutting fluid feed nozzle having a plurality of slits is combined with a plurality of cutoff abrasive blades coaxially mounted on a rotating shaft, each said blade comprising a base disk and a peripheral cutting part. The slits in the feed nozzle into which the outer peripheral portions of cutoff abrasive blades are inserted serve to restrict any axial run-out of the cutoff abrasive blades during rotation. Cutting fluid is fed from the feed nozzle through slits to the rotating cutoff abrasive blades and eventually to points of cutoff machining on the magnet block.

Abstract: A grinding method for a wafer having a plurality of devices on the front side, wherein the back side of the wafer is ground by a grinding wheel to suppress the motion of heavy metal in the wafer by a gettering effect and also to maintain the die strength of each device at about 1,000 MPa or more. The grinding wheel is composed of a frame and an abrasive member fixed to the free end of the frame. The abrasive member is produced by fixing diamond abrasive grains having a grain size of less than or equal to 1 ?m with a vitrified bond. A protective member is attached to the front side of the wafer and the wafer is held on a chuck table in the condition where the protective member is in contact with the chuck table. The grinding wheel is rotated as rotating the chuck table to thereby grind the back side of the wafer by means of the abrasive member so that the average surface roughness of the back side of the wafer becomes less than or equal to 0.

Abstract: A dynamic pressure in the coolant supplied between a rotating grinding wheel and a rotating workpiece is released by making at least one of oblique grooves on the grinding wheel pass vertically through a contact surface on which a grinding surface of the grinding wheel contacts the workpiece. Where one and the other side intersection points are defined as intersection points at which both ends of each oblique groove respectively cross extension lines of one and the other side edges parallel to a grinding wheel circumferential direction of the contact surface, the other side intersection point of each oblique groove overlaps the one side intersection point of an oblique groove next to each such oblique groove by a predetermined overlap amount in the grinding wheel circumferential direction, and the length in the grinding wheel circumferential direction of the contact surface is made to be shorter than the overlap amount.

Abstract: A wire slicing system and method for using it include one or more of the following features: arrangements and/or operations that relate to handling the wire; apparatus and methods that relate to wire tensioning; equipment and techniques for manipulating the workpiece; arrangements and/or operations designed for cooling and swarf (debris) removal; controls and/or automation that can be used in conjunction with these features.

Abstract: The portable belt grinder 201 comprises; a main body 202 with an electric motor 203 built therein; a drive pulley disposed in the lower portion of the main body 202 and rotationally drivable by the electric motor 203; an idle pulley disposed as the companion to the drive pulley; and, an endless abrasive belt 215 wound between the two pulleys. In the portable belt grinder 201, in the portion of the main body 202 that exists in the vicinity of the abrasive belt 215, there is formed a hole portion 202f which is used to visually confirm the side end edge of the abrasive belt 215 from above. Also, on the upper surface of the main body 202, there is mounted a transparent cover 222 which is used to cover the hole portion 202f.

Abstract: A portable electric grinder with an air cooling system and connected to a remote stationary voltage supply means (19, 20) via a cable (16), wherein a cooling air duct (21) is provided to connect cooling air passages (23a, b) in the grinder housing (10) to a stationary air pumping device, and the air pumping device is provided with a filter unit (24) for preventing dust and other undesirable particles from entering the air duct (21) and reaching the cooling air passages (23a, b) of the grinder housing (10).

Abstract: A substrate polishing apparatus includes a substrate holding mechanism having a head for holding a substrate to be polished, and a polishing mechanism including a polishing table with a polishing pad mounted thereon. The substrate held by the head is pressed against the polishing pad on the polishing table to polish the substrate by relative movement of the substrate and the polishing pad. The substrate polishing apparatus also includes a substrate transfer mechanism for delivering the substrate to be polished to the head and receiving the polished substrate. The substrate transfer mechanism includes a substrate to-be-polished receiver for receiving the substrate to be polished, and a polished substrate receiver for receiving the substrate which has been polished.

Abstract: A coolant nozzle is used in a machine tool having a rotating bit. The nozzle includes a through-aperture for accommodating the bit. The nozzle has a coolant inlet and a number of coolant outlets at more than one angular position about the through-aperture. Internal surface portions define one or more passageways between the inlet and the outlets.

Abstract: In a coolant supply apparatus for a grinding machine, a wheel imbalance prevention device is operated within the period from the switching to the closed state of a shut-off valve which is provided on a conduit connecting a coolant supply to a coolant nozzle, until the stop of rotation of the grinding wheel and prevents the coolant remaining in a part of the conduit on the downstream side of the shut-off valve and in the coolant nozzle from dropping on the grinding surface of the grinding wheel during the stop in rotation of the grinding wheel. Thus, the occurrence of coolant which otherwise penetrates the grinding wheel to put the same out of balance is prevented.

Abstract: A method of determining a position of a coolant nozzle relative to a rotating grinding wheel removing material from a work-piece and an apparatus for practicing the method are disclosed. The method includes the step of disposing a coolant nozzle having a base and a distal end for adjustable movement relative to the grinding wheel and the work-piece. The distal end of the coolant nozzle can be moved in a first plane normal to an axis of the grinding wheel along a first arcuate path centered on a pivot axis at the base. The distal end can also be moved by moving the pivot axis in the first plane along an orbit centered on the grinding wheel axis. The method also includes the step of selecting a position of the distal end along the first arcuate path. The method also includes the step of projecting a second arcuate path in the first plane centered on the grinding wheel axis and having a radius extending to the position of the distal end along the first arcuate path.

Abstract: A grinding machine for grinding a workpiece comprises a machine frame, a bearing device provided on the machine frame and movable along guides, in which a cup-shaped grinding wheel is rotatably drivable about a grinding wheel axis and electrically insulated. The grinding wheel is electrically connected to a generator. The device for profile dressing, sharpening and cleaning the grinding wheel consists of a single cup-shaped electrode, which is drivable about its central axis and is placed on a slide, which allows a working gap to exist between the machining surface of the cup-shaped electrode and the annular abrasive surface. A spark erosion discharge occurs in the gap when a voltage is applied. The grinding wheel can thereby be optimally conditioned by electric discharge machining.

Abstract: An elongated liquid polish dispenser which can be longitudinally attached to a hand-held rotary buffer such that a thumb switch to operate the dispenser is placed opposite a trigger on the buffer's handle is described. The dispenser can be firmly attached by a built-in strap to several popular models of professional heavy duty polishers without obscuring vent holes of those models. The thumb switch activates an electric pump which pumps liquid polish through a nozzle and onto a work surface.

Abstract: A heatless slurry system for use with a glass removal apparatus for restoring a glass surface. The system comprises a slurry container and a pump mounted externally relative to the container to prevent heating of the slurry as the system is operated. Vacuum pressure is created by activation of the pump to promote circulation of the slurry within the tool, thereby allowing the latter to be worked against the surface.

Abstract: The cutting tool shown generally as 1, has a disc with a peripheral cutting face. In this embodiment the cutting face includes an array of eight circumferentially spaced teeth 2. An open circumferential gutter 5 is located inboard of the teeth and is recessed into a lateral face of the disc. Fluid in the gutter drains into the passageways through the respective inlets under the apparent force due to rotation. A fluid passageway 9 runs between the gutter and the base of the each tooth. The fluid is thereby forced through the passageway and out of outlet 11.

Abstract: A polishing machine for optical elements, comprising:—a spindle arranged to rotationally drive an optical element;—a polishing tool mobile relative to the spindle; wherein the polishing machine further comprises a platform mounted on top of a work chamber, the work chamber comprising the spindle, and the platform holding a body on which is mounted the polishing tool.

Abstract: Semiconductor wafers are processed so as to remove material on one or both sides by means of at least one grinding tool, with coolant supplied into a contact region between the semiconductor wafer and the at least one grinding tool, characterized in that the coolant flow rate is set as a function of a grinding tooth height of the at least one grinding tool and this coolant flow rate is reduced as the grinding tooth height decreases.

Abstract: A substrate holding mechanism, a substrate polishing apparatus and a substrate polishing method have functions capable of minimizing an amount of heat generated during polishing of a substrate to be polished and of effectively cooling a substrate holding part of the substrate holding mechanism, and also capable of effectively preventing a polishing solution and polishing dust from adhering to an outer peripheral portion of the substrate holding part and drying thereon. The substrate holding mechanism has a mounting flange, a support member 6 and a retainer ring. A substrate to be polished is held on a lower side of the support member surrounded by the retainer ring, and the substrate is pressed against a polishing surface of a polishing table. The mounting flange is provided with a flow passage contiguous with at least the retainer ring. A temperature-controlled gas is supplied through the flow passage to cool the mounting flange, the support member and the retainer ring.

Abstract: A saw chain sharpening assembly including a support member, a grinding head, a clamping device and a cooling system whereby the saw chain sharpening assembly is adapted to provide a means for efficiently sharpening small and/or large chains.

Abstract: The invention relates to a ring system for accommodating a medium, to a method for compressing and guiding a medium for use in any known grinding methods for abrasive disks that consist of a support (1) and an abrasive lining (2) disposed on the circumference or face thereof for use on the circumference or the face of a work piece. The ring system provides a cavity and guide system for the coolant and lubricant. In said system the medium is accommodated, compressed and guided to the desired location of use. Optionally, the medium can be transported between the work piece and the abrasive lining (2) and/or to the interior or exterior of the abrasive disk to the desired location of use for the purpose of cooling, lubrication and cleaning.

Abstract: A multi-head centerless belt grinder for removing material from a workpiece includes a common base and a plurality of grinding heads spaced apart from one another and mounted to the common base. Each grinding head includes a moveable work rest blade, a moveable regulating wheel and a moveable grinding belt positioned by servomotors to centerless grind the workpiece along a common axis of rotation. The grinder is programmable for rapid machine changeover and set-up typically within 2-5 minutes to accommodate a large range of workpiece diameters. This feature results in improved productivity and output as well as greater flexibility for scheduling numerous workpiece diameters within a normal eight-hour work shift. A trough may extend beneath and between each of the grinding heads to more efficiently collect and transfer grinding swarf generated during the grinding process to a filter operable to separate solids within the swarf from coolant.

Abstract: An orbital sander liquid dispenser that includes a head with a hollow fluid distribution ring attached thereto that includes a plurality of jet openings formed on its bottom surface design to spray a desired liquid onto the working surface. A liquid is pumped by means of a submerged electric pump to the head and into the ring from a reservoir. An optional foot switch is provided for control the flow of liquid to the head.

Abstract: A tile saw includes a base, a frame assembly disposed on the base, a first rail disposed on the frame assembly, the first rail having a longitudinal axis, a table slidingly disposed on the first rail, a support assembly disposed on the base, a saw assembly supported by the support assembly, the saw assembly including a motor, a cutting wheel driven by the motor, the saw assembly being pivotable about a horizontal axis substantially parallel to the longitudinal axis, and a switch electrically connected to the motor and disposed on the support assembly so that, when the motor assembly is pivoted about the horizontal axis, the switch remains stationary.

Abstract: A water grinder including: a housing in which a rotary shaft is drivably disposed, the rotary shaft being formed with an axial passage; a water incoming flow way formed in the housing; a valve disposed in the housing and controllable by a selection switch; an external water discharging assembly disposed at a front end of the housing and having at least one water outlet; and a water flow bypass communicating with the external water discharging assembly and the valve. By means of turning the selection switch, the valve can be turned to a position to conduct the water from the flow way into the passage of the rotary shaft to discharge therefrom. Alternatively, the valve can be turned to another position to conduct the water to flow into the external water discharging assembly to discharge from the water outlet. Accordingly, the water discharging position is controllable to achieve best wetting effect for the powder dust produced in grinding operation.

Abstract: A method for dry finishing of a floor surface consisting of concrete, stone, marble, terrazzo, densite or other hard materials is disclosed. The method comprises finishing of the floor surface using a cutting, grinding and/or polishing tool. In the method, a vapor or aerosol is applied to the floor surface and/or the tool in connection with said dry finishing. An apparatus and a set of parts for carrying out the method are also disclosed.

Abstract: The invention relates to a grinding tool which comprises at least two detachable parts which are connected together. Both parts form a grinding disk-type body comprising a grinding surface which is interrupted on the peripheral area thereof. Said parts can be adjusted in relation to each other by means of an adjusting mechanism and can be fixed in the respective position thereof, such that the grinding disk-type body can be adjusted in relation to the grinding width thereof. Preferably, said adjustment takes place in a continuous manner. The grinding width can be adjusted in an advantageous manner for a variable grinding width which is to be ground and also for a readjusted grinding width which is to be ground in a plunge-grinding method.

Abstract: An improved atomizer, in which the liquid to be sprayed is circulated around the nozzle tip to prevent degradation of the liquid in hot environments. The circulation is controlled by a valve, which permits the liquid to circulate even when no liquid is being sprayed.

Abstract: An orbital sander liquid dispenser that includes an adapter that attaches to the head on a sander. Attached to the adapter is a hollow fluid distribution ring with jet openings formed on its bottom surface design to spray a desired liquid onto the working surface. A liquid is pumped by means of a submerged electric pump to the adapter and into the ring from a reservoir. An optional foot switch is provided for control the flow of liquid to the adapter. The adapter may be attached to a pneumatic or an electric sander. Holes are formed on the adapter through which the air conduit and exhaust valve extend to attach the adapter to the sander head.

Abstract: A coolant delivery apparatus for a machine tool wherein the position of the coolant delivery apparatus is controllable such that coolant may be delivered to the machining contact zone of a tool even though the location of the machining zone of the tool may change such as during machining of a workpiece, or from one workpiece to another.

Abstract: In a coolant supply method and apparatus for a grinding machine, when an end surface of a workpiece is ground with a grinding wheel end surface of a grinding wheel with coolant being supplied toward a grinding point, a first coolant flow is ejected toward a first position which is on the grinding wheel end surface on an upstream side of the grinding point, and intercepts an air layer rotating to follow the grinding wheel end surface. At the same time, a second coolant flow is ejected toward a second position which is on the grinding wheel end surface and which is closer to the grinding point than the first point, and clings onto the grinding wheel end surface at the second position where the follow air layer has been intercepted by the first coolant flow. Thus, the coolant of a sufficient volume can be supplied to the grinding point where the grinding wheel end surface grinds the end surface of the workpiece.

Abstract: A system for removing scratches from glass windows, windshields and the like utilizing a compound applied to a powered polishing disk/pad which effectively “scrubs” away the scratches. Liquid needs to be applied during the process. To enable the operator to use both hands to maneuver the tool while also controlling the liquid application procedure, a hand piece is mounted to the tool which functions both as a second handle for the operator and also places a finger/thumb actuated liquid spray control accessible to the operator. A nozzle connected to the control and receiving liquid from the control is mounted for directing spray onto the glass surface outboard of the periphery of the pad.

Abstract: Disclosed is a cylindrical grinding machine of the type that a workpiece support device composed of a work head and a foot stock is mounted on a forward upper portion of a bed while a wheel head unit composed of a slide base and a wheel head is mounted on a rear upper portion of the bed. A coolant collecting vent which takes a rectangular shape as viewed from above vertically extends in the bed and opens to the upper surface of the bed to cover an area that extends from under the workpiece on the workpiece support device to under the forward portion of the wheel head unit. A horizontal vent is provided in the bed to open to the rear surface of the bed and to communicate with the collecting vent. A coolant supply device is inserted at a part thereof into the horizontal vent from the rear surface of the bed to extend an inlet opening into the collecting vent.

Abstract: A metal machining apparatus for removal of metal from a workpiece, that employs a laser-targeted coolant nozzle to apply coolant fluid to a machining tool, such as a grinding wheel, to remove metal from a workpiece. The laser-targeted coolant nozzle has a coolant nozzle body having a flow passage for the coolant fluid, and a laser bore through which a visible laser can be inserted. The visible laser cooperates with a positioning feature on the nozzle body for visually positioning the coolant nozzle relative to the grinding wheel. When the laser is removed and replaced with a seal plug, the stream of cooling fluid passing through the flow passage can be directed accurately at the grinding wheel for improved workpiece grinding.