Abstract: A key cutting machine having a vacuum port connected to the housing and capable of removeably connecting a vacuum tube thereto so that when the vacuum tube is connected to the vacuum port the vacuum tube is capable of collecting key shavings created during a key cutting operation and, when the vacuum tube is disconnected from vacuum port, the vacuum tube can be used to collect key shavings on or surrounding the key cutting machine. Additional improvements or features of a key cutting machine are also described.

Abstract: Machine tool having a bed, a table arranged on the bed, a first saddle provided free to travel back and forth, a second saddle supported on the first saddle and provided free to travel side to side, a spindle head provided free to travel perpendicularly on the second saddle, a main spindle situated above the table and by the spindle head supported free to rotate on its center axis, a front cover provided on the front side of the bed and furnished with doors that open and close sideways, and top covers configured with one end sideways shiftably connected to the front side of the first saddle, and with another end connected extensibly/retractably to the top of the front-cover doors, therein being configured for permitting back-and-forth-directed movement of the first saddle.

Abstract: A machine tool has a support table provided on an upper surface of a bed to support a work, a Z-axis saddle, a machining unit mounted on the Z-axis saddle and provided with a machining head, a compartment cover arranged on the bed to compartment a region and a machine region, an opening window provided on the compartment cover to permit the machining head to go in and out therethrough, and a seal member in the form of a closed ring to be mounted on an inner peripheral edge of the opening window of the compartment cover, wherein an entire periphery of an outer peripheral surface of the machining head is brought into sliding contact with an inner peripheral edge of the seal member in a state, in which the machining head is moved into the machining region from a tool exchange position within the machine region.

Abstract: A machine for machining workpieces has at least one milling tool with an internal cutter. The machine is provided with a first guide system and a second guide system parallel to the first guide system. The first guide system has at least one compound slide having a slide part, wherein the at least one compound slide is moveable in a longitudinal direction of the first guide system and wherein the slide part is moveable transversely to the longitudinal direction. A milling tool is secured on the slide part. The first and second guide systems have sliding guides or roller bearing guides. The at least one compound slide has a transverse guide system and the slide part is guided on the transverse guide system.

Abstract: An assembly for removing chips from a cutting tool working area on a workpiece, including a support structure for supporting a first end of an axially expandable and collapsible tubular member; a cross-piece for supporting a second end of the tubular member; at least one biasing spring configured and arranged for resiliently biasing the support structure and the cross-piece away from one another; a housing with a chips-receiving chamber located adjacent one of the ends of the tubular member for engagement with the working area of the workpiece, an outlet from the chamber of the housing being configured to be connected to a vacuum source for removing chips from the chamber; and a hub portion located at the other of the ends of the tubular member for engagement with a cutting machine.

Abstract: The present invention provides a concave part cover that can be easily inserted and be safely secured in a concave part even if tolerances and dimensional errors of the concave part such as a slot or a hole, and of the concave part cover for covering the concave part are large. The concave part cover comprises: a top plate 11 for covering the concave part; and a pair of pressing parts 12A and 12B extending from the top plate 11 and pressing side walls 52A and 52B of the concave part when the pressing parts 12A and 12B are inserted into the concave part. Base ends 15A and 15B of the pressing parts 12A and 12B are positioned at the top plate 11 in such a manner that a distance between the base ends 15A and 15B is shorter than distance W (between the side walls 52A and 52B), and portions of extending parts 16A and 16B of the pressing parts 12A and 12B are formed to project outwards until they are spaced at a wider distance therebetween than the distance W.

Abstract: A circuit board router (10) and method thereof. De-paneling of printed circuit boards (62) off a panel 860) is efficiently increased by a router (40) which is positioned at a location above the panel (60). A fixture positions the panel 860) below the router (40) on a base (16). A controller (64) activates a first drive mechanism (20), a second drive mechanism (26), and a third drive mechanism (32) to guide an X-arm (18), a Y-arm (24) and a Z-arm (10), respectively. The router (40), located on the Z-arm (30), moves downward to engage a router bit (42) to the panel (60) to depanel the printed circuit board (62) from the panel. A fixture chip (72), which has a preprogrammed pattern of the panel (60), is embedded inside the fixture (58). A radio frequency transmitter (80) transmits the pattern to a radio frequency receiver (82) that relays the pattern to the controller (64).

Abstract: A partitioning device between a machining station and a machine-tool driving station of the type driving at least two tool-holder rams is provided. The device includes a flexible curtain, called a central curtain, between two rams, where two ends are integral with a first ram and which is linked to the second ram. The relative movement of one ram with respect to the other along a first axis of movement, stretches more or less a length of curtain between the two rams.

Abstract: A key cutting machine for cutting a notch pattern on a key blank is disclosed. The key cutting machine comprises a pair of cutting heads and a clamp mechanism. Each cutting head includes a cutting wheel having an edge and an alignment structure mounted behind the cutting wheel. Each alignment structure has a key guide portion aligned tangent to the edge of a corresponding cutting wheel to engage and position a key blank laterally. The clamp mechanism is positioned between the cutting heads and is configured to hold the key blank stationary.

Abstract: The present invention provides a tool changer of a machine tool capable of suppressing cost increase and preventing size increase of the machine when a tool magazine is mounted. In a tool changer of a machine tool provided with a pallet change mechanism 10 in which a machining-side pallet 11 disposed on a machining area A side and a standby-side pallet 12 disposed on a standby area B side are turned around a turn shaft 14 by a turning member 13 to be automatically changed, a tool magazine 28 holding a plurality of tools T1 to T4 is disposed between the machining-side pallet 11 and the standby-side pallet 12 in the turning member 13 and the tool magazine 28 is turned by the turning member 13 so that the tools T1 to T4 face a spindle 5 disposed on the machining area A side.

Abstract: A machine tool for machining large-area workpieces. A column can be moved along one coordinate axis over a long bed. A machining unit, movable at the movable column along at least two other coordinate axes, has a pivotable working spindle. At least one approximately plate-like work carrier can be pivoted from a horizontal set-up position into a vertical machining position. A tripod configuration of the machining unit has a central support pipe and three telescopic legs spaced about 120° with respect to one another. The movable column has, in a central recess, a universal bearing supporting the central support pipe. In each of two lower and one upper recesses a universal bearing for the telescopic legs is provided. A retainer supporting the pivotable working spindle is positioned next to the work area on one end of the central support pipe and is rotatable about an axis of the central support pipe.

Abstract: A chamfering air tool includes a driving shaft in a casing rotated by air pressure, a rotary shaft perpendicularly combined to the driving shaft for rotation, and a cutter fixed to the rotary shaft. Air holes are formed through the rotary shaft in a longitudinal direction. An air discharge groove is formed in the cutter, and a hole communicated with the air hole is formed in a fixing bolt head. An air path is formed in the fixing bolt head to keep a predetermined gap from the cutter. A guide ring having a diameter approximate to a lower end of the cutter is rotatably mounted to the fixing bolt head. Thus, air is blown to the air hole of the rotary shaft, the air hole formed in the fixing bolt head, the air path formed between the cutter and the guide ring, and the air discharge groove of the cutter, thereby eliminating cut chips and cooling the cutter.

Abstract: An apparatus for beveling the edges of workpieces, such as flooring strips, as they are advanced along a path of travel on a conveyor. The apparatus has a motor assembly which mounts a cutting wheel, and the motor assembly is mounted for manual adjustment in both the in and out and up and down directions. Also, the motor assembly can float a limited distance in both of these directions. A guide shoe is mounted to the motor assembly and is positioned to ride on the workpieces. Any unevenness in the straightness, thickness, or width of the workpieces is detected by the guide shoe, which causes the motor assembly and thus the cutting wheel to closely follow the changing contour of the workpieces and impart a uniform bevel.

Abstract: A horizontal machining center 1 has a table 20 on a bed 10. An X-axis slidable surface is provided on the bed 10, and a column 30 is driven by a servo motor 32. A spindle stock 40 is supported on the column 30 and is driven along a Y axis extending in a vertical direction. An automatic tool change unit 100 replaces a tool on a spindle 44 on the spindle stock 40 with a tool in a tool magazine. An X-axis cover 200 provided between the table 20 and the column 30 has a plate-like fixed cover 205 and a pair of slidable covers 210. The fixed cover 205 is disposed with one edge thereof passing through an opening 150 formed in the middle of the tool magazine 110. Structured in this way, the horizontal machining center can have a reduced size.

Abstract: Machining is possible in such a manner that an optional position of a workpiece is positioned just under a tool by rotation of a turn table in a C-axis direction and movement of a spindle on a Y-Z plane, so that a width of a main unit in a X-axis direction can be made shorter in comparison with machining by moving the turn table in the X-axis direction. Besides, the turn table located on a front side of the main unit, an ATC located on the rear side thereof, and a separated control panel located on the rear side of the ATC, independent from the main unit can also make the width of a machining centre in the X-axis direction shorter.

Abstract: An automatic tool changing device capable of cleaning a contact surface of a spindle, which is to be in contact with a tool holder, with a simple structure. The device includes a turret having a plurality of grippers on its outer circumference and holding the tool holder by means of the grippers. At the time of tool change, the grippers grip and pull out the tool holder fixed to the spindle. Rotation of the spindle causes the turret to rotate through a spindle gear, a turret gear, and a decelerating device, to thereby select a tool. At this moment, a coolant is spouted from a nozzle portion of a manifold toward a spindle taper hole in which the tool holder is interfitted and washes the taper hole. Due to the rotation of the spindle, the coolant is spouted onto the whole circumference of the taper hole, and the surface to be in contact with the tool holder is surely washed.

Abstract: The present invention provides a machine tool capable of enhancing chip discharge efficiency and improving work efficiency with improved approachability to a spindle. A machine tool according to the present invention is structured such that a recession 2c with a back face side and an upper face side thereof opened is formed at a center portion of a bed 2, Y-axis guide rails 18 and Y-axis ball screws (drive shafts) 16 for guiding and driving the saddle 4 are disposed on right and left saddle supports (edges) 2b of the recession 2c and are covered with right and left Y-axis cutting covers 56, the right and left Y-axis cutting covers 56 are formed in an inclined shape with the recession 2c side thereof becoming lower, and a chip receptor 48 for discharging chips dropped into the recession 2c to a back face side of the bed 2 is disposed in the recession 2c.

Abstract: The present invention provides an arrangement structure of a machine tool which is capable of compactly arranging electrical wires and pipes for coolant and the like without impairing support stiffness for a column, and simplifying the arrangement structure, while adopting a column fixing structure.

Abstract: A machine tool installation (1) for the processing of workpieces includes encompasses a work area (4) for the machining of workpieces and contains a workpiece support (13), a work area enclosure (3) featuring a gate (7) and at least one corresponding door segment (6/1, 6/2, 6/3) which can be moved in the horizontal direction between open and closed positions and is supported on the substructure of the machine installation (1) in horizontally movable fashion. Provided above the substructure of the machine tool installation (1), and attached solely to the workpiece support (13) is at least one stationary guide element (14, 15) for the door segments (6/1, 6/2, 6/3) and extending over at least part of the width of the gate.

Abstract: In the multi-axial machine tool, a table unit is detachably mounted on the upper surface of the interior portion of a portal bed disposed on a leg. The table unit comprises a table base fixed to the upper surface of the leg, a turning table which, when it is viewed at a reference working position, is turnably disposed on an inclined turning surface of the table base formed so as to be inclined in a descending manner toward a front side of the machine tool, and a work table disposed on the table support portion of the turning table so as to be turnable around axes lying in parallel with the axis of a spindle.

Abstract: A machine tool is provided which is designed so that chips generated by the machining of a workpiece can assuredly be introduced onto a chip conveyer disposed in a trough of a bed through oil pans. The machine tool includes a column provided on one end portion of a bed (11) and movable along an X-axison the bed (11), a spindle head (12) supported by the column and movable vertically up and down along a Y-axis, and a table (13) movable back and forth along a Z-axis with respect to the spindle head (12) on the bed (11). The bed (11) has a center trough (11a) formed in a widthwise middle portion thereof, and a pair of side troughs (11b) formed therein on widthwise opposite sides of the center trough (11a). A first chip conveyer (14) is provided in the center trough (11a), and second chip conveyers (15) are provided in the respective side troughs (11b).

Abstract: The invention relates to a machine tool which processes a workpiece through the relative motions between a tool and the workpiece in X-, Y- and Z-axes three directions. The object of the invention is to ensure the collection and ejection of the chips with a simple configuration. The invention comprises a trough 27 provided in the central part of a bed 1 to extend in back-and-forth direction, a pair of guides 9 disposed at left-and-right sides of the trough 27, a Z-axis feed screw 31 disposed adjacent one of the guides 9, and slant covers 37 and Z-axis telescopic covers 39 for covering the pair of guides 9 and the Z-axis feed screw 31. Chip conveyer nozzles 47 and 49 are provided within the trough 27 for directing the machining fluid to eject the chips from the machine.

Abstract: A column-type machining arrangement for machining a workpiece is provided, including a machine bed; a traversable column slidably coupled to the machine bed; a tool carrier coupled to the column, the tool carrier configured to detachably couple to a tool for machining the workpiece; a plurality guideways to guide the traversable column on the machine bed, the guideways including a first guideway arranged on the machine bed below the column and a second guideway arranged centrally and laterally next to the column at a height equal to approximately half a height of the column; and a first drive arrangement configured to cause the column to slidably traverse on the machine bed, the first drive arrangement acting on the column at a level of the second guideway.

Abstract: The dust attachment which is used with a spiral saw power tool includes a first attachment portion which at a rear end has a substantially dust-tight fit with a mounting head portion of the tool. The other (forward) end extends beyond a forward edge of the mounting head portion, but such that the spiral saw bit extends beyond the forward edge of the attachment portion by a distance which is slightly greater than that of the thickness of the workpiece. An attaching member such as a screw secures the dust attachment portion to the tool. An dust exit tube extends from a side surface of the attachment portion and communicates with the interior of the attachment portion. The dust exit tube extends at an angle away from the attachment portion toward the rear end thereof.

Abstract: A high-speed spindle unit for milling and drilling machines. The spindle unit has a spindle housing on the front end portion of which a terminating ring detachably mounted and a rotationally driven tool spindle which is supported in at least a front roller bearing inside the spindle housing, a ring nut being attached to the front end portion of said spindle. Between the terminating ring and the ring nut a pre-dimensioned ring-shaped gap extending in the radial direction is formed, the gap width of the gap being decreasable to zero with increasing axial load acting on the spindle.

Abstract: The machine tool includes a column that can be moved back and forth. The column supports a spindle which is adapted to hold a tool for machining a workpiece at an end thereof. A worktable located in front of the column which is adapted to hold the workpiece. A back cover is located behind the column to prevent swarf of the workpiece from being scattered into a space behind the column. The back cover is arranged to move back and forth integrally with the column.

Abstract: A device for using a parallel structure designed for positioning and displacing a mobile member including at least a fixed element and at least three actuators each including a fixed part and a mobile part, the mobile member including a support-sheath of a tool spindle. The device includes a balancing assembly which, enabling the support-sheath to move in rectilinear manner along axes X, Y and Z, maintains the support-sheath such that the weight of the support-sheath is not transferred to the parallel structure.

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: A system and method for inscribing an item is provided. The system includes a housing having a door, an inscriber, and a support. The inscriber is disposed in the housing and is operable to inscribe the surface of an item secured in an item carrier. The support has a positioning structure that is configured to engage the item carrier and establish a reference point so that the location of the surface of the item with respect to the support is determinable. The support moves between a loading position and an inscribing position to position the item for inscribing. There is also provided a controller that governs the movements of the inscriber and includes an input device. The input device is moveable between a first position to receive characteristics about the item to be inscribed and a second position to receive a message to be inscribed on the surface of the item.

Abstract: A column fixed type machine tool capable of surely suppressing the dispersion of chips and coolant to the outside of a machining space and reducing the entire size thereof so as to increase a workability and improve a working environment, wherein a column (2) is installed fixedly on a bed (1), a spindle head (8) is installed at the front of the column movably in vertical, lateral and longitudinal directions (f1, f2, f3), a jig device (42) is installed on the bed at the front of the column, a column side cover body (cov1) densely covering the front surface of the column is provided so as to protect against the dispersion of chips, the cover body is formed so as to allow the spindle head (8) to be moved in vertical and lateral directions, a jig side cover body (cov2) covering at least the surrounding of a jig main body part (47) is installed, an intermediate cover body (cov3) covering the upper and right and left sides of the spindle head moving range is installed between the jig side cover body and the column

Abstract: A pneumatic edge trimming machine has a base a center of which having a hole. A sleeve extends upwards from the base for receiving a hollow outer casing. The outer casing has a top and a lower end; and the top and lower end of the outer casing are fixed to an inner casing through a frame. A space penetrating the inner casing and outer casing is formed. The inner casing is used to be installed with a pneumatic motor. A shaft is extended from a pneumatic motor. The shaft has a tool combining portion which exposes out of the hole at the base. The inner casing has an air inlet and a control switch. The inner casing has a vent facing toward a top of the outer casing, and the top of the outer casing being connected to a predetermined space by a tube. Therefore dust can be absorbed automatically in working.

Abstract: A cutter 20 cuts the butted portion between two members 11 and 12 so as to form a groove 13 to the butted portion. 23 is an optical sensor for guiding the cutter 20 to a center of the butted portion of the two members. 21 is a cover that covers the periphery around the cutter. Chips enter the cover 21 and are accumulated therein. 31 is a filling material to be inserted to the groove 13. 33 is a pressure roller preventing the filling material from popping out of the groove 13 during friction stir welding. 41 is a friction stir welding tool for welding the members 11, 12 and the filling material 13. 51 is an air blowout nozzle for blowing air via the proximity of the cutter 20 toward the groove. 52 is another air blowout nozzle disposed at the rear of the cover for blowing air toward the groove 13.

Abstract: A machine having a machine tool operatively connected thereto by manually manipulatable fastening members. A fastening member receiving and retaining device is adapted for placement beneath the machine tool for catching fastening members when inadvertently dropped. A device for temporary attachment to the machine or machine adjacent surface, and a flexible cable device are provided for connecting the fastening member receiving and retaining device to the for temporary attachment. The flexible cable device is adapted to be manually positioned and shaped and to retain its shape and position in a self-sustaining manner while holding the fastening member receiving and retaining device beneath the machine tool.

Abstract: A coupling device for engaging an exchangeable tool support (7) for corotation with a shaft (2) of a motor (1), with the shaft (2) mounting at is driven end a hollow shaft projection (3) for receiving the tool support (7). Alternatively, the tool support (7) can mount the hollow shaft projection for receiving the driven end of the shaft. The shaft (2) and/or the tool support mounts a locking device for securing the tool support (7), and which is actuated by centrifugal force. The coupling device is designed and constructed so as to permit a simple mounting of even heavy tools to the output shaft of the motor, and a reliable connection of the tool and drive.

Abstract: A method for lengthening the machining travel of a machine-tool operating at a very high speed, including a tool-carrying ram mobile on three axes. The method combines with the machining movements of the tool-carrying ram along one or several axes, one or several rectilinear movements of the part to be machined by parametering and digitizing the relative travels and speeds of the part to be machined with respect to the tool-carrying ram. The invention also concerns the device for implementing this method and the machine-tool using such a device.

Abstract: A machining machine-tool having a fixed frame with a closed structure. The machining zone is delimited by the fixed frame internal surfaces and includes a machining head supporting the driving unit of a machine-tool. The machine-tool fixed frame has a C-shaped profile, and ends of branches of the C are linked to the machine-tool machining head. The ergonomic arrangement of the machine-tool functional parts is also considered.

Abstract: The invention relates to a machining center provided with a workpiece machining tool. Said machine tool comprises: an essentially horizontal working plate (10) which is supported by a machine tool stand (2); a workpiece support (20) which is accommodates a workpiece (2) and which is placed on the working plate (10); a machining head (30) which accommodates a machining tool (29) and which is mounted on a vertical machining column (32) that can pivot around a vertical axis (37) by means of a rotary plate (36), said rotary plate being arranged underneath the working plate (10) and integrated in the machine stand (2), and; a first carrying arm (34) for the machining column (32). One end of said carrying arm is connected in a fixed manner to the rotary plate (36), and the other end is laterally guided out over the working plate (10) in such a manner that the machining column (32) mounted there can be pivoted around the working plate (10).

Abstract: A machine tool for machining large-area workpieces. A column can be moved along one coordinate axis over a long bed. A machining unit, movable at the movable column along at least two other coordinate axes, has a pivotable working spindle. At least one approximately plate-like work carrier can be pivoted from a horizontal set-up position into a vertical machining position. A tripod configuration of the machining unit has a central support pipe and three telescopic legs spaced about 120° with respect to one another. The movable column has, in a central recess, a universal bearing supporting the central support pipe. In each of two lower and one upper recesses a universal bearing for the telescopic legs is provided. A retainer supporting the pivotable working spindle is positioned next to the work area on one end of the central support pipe and is rotatable about an axis of the central support pipe.

Abstract: An exterior cover for a machine tool is provided which permits a machine tool body to maintain its machining accuracy. The exterior cover comprises a cover frame placed on a floor where the machine tool is installed, an inner cover plate partly attached to an inner side of the cover frame, and an outer cover plate attached to an outer side of the cover frame. A thermal insulating material is provided between the inner cover plate and the outer cover plate, and bonded to the inner cover plate. When the exterior cover is assembled, the cover frame is brought into abutment against the machine tool body with the intervention of a positioning member. Thus, the exterior cover can easily be positioned with respect to the machine tool body.

Abstract: Disclosed herein is a gantry type hybrid parallel linkage five-axis machine tool composed of a machine framework a parallel spatial linkage mechanism, a feeding shaft mechanism, and a controller unit. The parallel spatial linkage mechanism is formed of three straight feeding molding dies rotatably hinged together with a base so that enabling this rotatable base to perform uni-dimensional linear motion and two-dimensional swiveling. Besides by controlling the operation of the feeding shaft mechanism with the controller unit, the parallel spatial linkage mechanism fixed to the machine framework is able to perform two-dimensional planar motion so as to operate the machine tools more accurately and efficiently in refining work.

Abstract: The invention relates to a machine tool which processes a workpiece through the relative motions between a tool and the workpiece in X-, Y- and Z-axes three directions. The object of the invention is to ensure the collection and ejection of the chips with a simple configuration. The invention comprises a trough 27 provided in the central part of a bed 1 to extend in back-and-forth direction, a pair of guides 9 disposed at left-and-right sides of the trough 27, a Z-axis feed screw 31 disposed adjacent one of the guides 9, and slant covers 37 and Z-axis telescopic covers 39 for covering the pair of guides 9 and the Z-axis feed screw 31. Chip conveyer nozzles 47 and 49 are provided within the trough 27 for directing the machining fluid to eject the chips from the machine.

Abstract: A machine tool is provided which is constructed so that a table pivot mechanism and cables such as a power supply line connected to the pivot mechanism are protected from chips and a coolant. The machine tool comprises: a column movable along the X-axis on a bed (11); a main spindle (12) supported by the column via a spindle head and vertically movable along the Y-axis; and a rotatable table (13) which is movable back and forth with respect to the main spindle (12) along the Z-axis on the bed (11). The table (13) is pivotally supported by a table frame which is movable along the Z-axis along slideways provided on the bed (11). A pivot mechanism such as including a servo motor and a reduction gear mechanism for pivoting the table (13) is provided on an outer side of the table frame. The bed (11) has a center trough in which a chip conveyer (18) is provided. The slideways and the table pivot mechanism are completely separated from a machining space by movable covers (22).

Abstract: A splash cover is assembled to a mount of a base. A space for holding a packing is provided between the splash cover and the mount. A packing port is provided to the accommodating space. The structure allows an operator to install or remove the packing to or from the accommodating portion inside the splash cover without interference from the splash cover. Thus, installing or removing the packing can be easily performed. In addition, because the packing is invisible from outside, the appearance of the splash cover is improved.

Abstract: A collet assembly for a tool comprising a collet nut rotatably connectable to the tool; a collet operatively connectable to the collet nut; and a collet wrench movably connected with the tool and engageable with the collet nut for tightening and loosening the collet.

Abstract: A method and apparatus for indicating a reference point on a workpiece for a program in a CNC machine tool is disclosed. A camera is mounted in a CNC toolholder so that the lens of the camera is coaxial with a rotational axis of the CNC toolholder. A pair of crosshairs or other indica are provided in the view from the camera, the crosshairs being centered in the view so that when the camera is mounted in the toolholder, the crosshairs indicate the center of rotation of the toolholder. The camera may then be positioned with respect to the workpiece so that it images an area of the workpiece containing a reference point with respect to the coordinate system of the CNC program. The toolholder is then adjusted so that the crosshairs are directly on the desired reference point, and this reference point entered into the CNC program.

Abstract: A machine tool with an improved capability of discharging and collecting the cutting chips is disclosed. A bed (13) is provided with troughs (39) extending through the bed (13) in a direction substantially perpendicular to a direction of the movement of a table (15). The cutting chips are collected in the troughs (39) through a plurality of chutes (47) which have openings inclined downward towards the troughs (39) and which are provided below the upper surface of the table 15, to be discharged to the outside through chip discharge means (41) disposed in the troughs (39).

Abstract: The machine tool includes a column that can be moved back and forth. The column supports a spindle which is adapted to hold a tool for machining a workpiece at an end thereof. A worktable located in front of the column which is adapted to hold the workpiece. A back cover is located behind the column to prevent swarf of the workpiece from being scattered into a space behind the column. The back cover is arranged to move back and forth integrally with the column.

Abstract: According to the present invention, there is provided a vertical machining center (1) which has working regions (&agr;, &bgr;) separable by a partition plate (P), and comprises a spindle head (15) adapted to move within one of the working regions (&agr;, &bgr;) separated by the partition plate (P) in a first machining mode and to move across the working regions (&agr;, &bgr;) not separate by the partition plate (P) in a second machining mode, and a stopper (20) which prevents the spindle head (15) from moving from the one working region into the other working region in the first machining mode and permits the spindle head (15) to move between the working regions (&agr;, &bgr;) in the second machining mode. The stopper (20) includes a movable stopper member (21) attached to a saddle (13) and stationary stopper members (26,27) attached to a bed (11).

Abstract: A column fixed type machine tool capable of surely suppressing the dispersion of chips and coolant to the outside of a machining space and reducing the entire size thereof so as to increase a workability and improve a working environment, wherein a column (2) is installed fixedly on a bed (1), a spindle head (8) is installed at the front of the column movably in vertical, lateral and longitudinal directions (f1, f2, f3), a jig device (42) is installed on the bed at the front of the column, a column side cover body (cov1) densely covering the front surface of the column is provided so as to protect against the dispersion of chips, the cover body is formed so as to allow the spindle head (8) to be moved in vertical and lateral directions, a jig side cover body (cov2) covering at least the surrounding of a jig main body part (47) is installed, an intermediate cover body (cov3) covering the upper and right and left sides of the spindle head moving range is installed between the jig side cover body and the column

Abstract: A blade guard and lifter therefor surround the saw blade, interlocking when raised by a workpiece as a result of relative movement caused by a secondary linkage. Two pair of primary linkages pivotally connect the blade guard to the splitter. The dual secondary linkage pivotally attaches the parallel plates of the lifter to one of the two pivot points of the primary linkages. Any lifting force is resisted by the rigidity of the primary link that does not share a pivot point with the secondary linkage. A dust collector can be provided to the table saw to minimize respiratory hazards.