Abstract: The invention relates to a machine comprising a mechanical guide element (2a, 2b) for guiding the displacement of a first (3a, 3b) and a second device (4a, 4b). Said machine comprises a first drive device (5a, 5b, 10a) for displacing the first device (3a, 3b) along the guide element (2a, 2b), and a second drive device (6a, 6b, 10b) for displacing the second device (4a, 4b) along the same guide element (2a, 2b) as the first device (3a, 3b). The mechanical construction of a machine is simplified due to said invention.

Abstract: A machining station and a method produce vehicle bodies of different types. A clamping station has interchangeable clamping frames, at least one clamping frame magazine, into which the interchangeable clamping frames are deposited when not in use and from which the interchangeable clamping frames are removed when in use, and at least one robot for transporting the interchangeable clamping frames. The interchangeable clamping frames, in particular the clamping frames for the vehicle body side parts, are divided into a plurality of separable segmental clamping frames, with, to convert to a different type of vehicle body, one segmental clamping frame in each case being transported by a robot from the clamping station to the clamping frame magazine, being deposited there, a segmental clamping frame of a different type being removed from the clamping frame magazine and this segmental clamping frame being transported to the clamping station.

Abstract: A module storage rack is disclosed e.g. a probe rack suitable for use with a carrier e.g. a probe measurement head which is movable relative to the rack for picking a module from the rack. The rack includes a base member and a plurality of storage ports connected to the base for storing the modules, each port has an actuatable connecting or disconnecting tool for connecting or disconnecting a module to or from the carrier, and each storage port is movable relative to the base member the relative movement provides the actuation of the tool. The plurality of storage ports are movable together relative to the base. Additionally, there is disclosed a linkage having a plurality of pivotally interconnected rigid members being connected to the tool for causing the tool to connect or disconnect the module to or from the carrier. The linkage may be operated by movement of the rack or by alternative mechanisms.

Abstract: A system for lapping gear sets with a ring gear and a pinion gear. The system includes a lapping machine tool and a robot. The lapping machine tool has a first spindle and a second spindle. The second spindle is rotatable about an axis that is generally perpendicular to a rotational axis of the first spindle. The lapping machine tool has a loading zone for loading the first and second spindles. The robot has an end effector with a first end that is configured to hold one of the gear sets. The robot is configured to position the first end of the end effector into the loading zone and to load the first gear set to the lapping machine tool without removing the end effector from the loading zone such that the ring gear is loaded onto the first spindle and the pinion gear is loaded onto the second spindle.

Abstract: Apparatus (12) for storing robotic tooling for vehicle body sheet metal robotic assembly operates a robot to transfer robotic tooling between an assembly station and a rotary storage rack (56) of a storage rack assembly (28). The storage rack (56) has vertically spaced storage locations and is rotated about a vertical axis to provide circumferentially spaced storage locations.

Abstract: The inventive device comprises a tool holder (1), which can be displaced in an x-direction, in a y-direction that is perpendicular thereto, and in a z-direction that is perpendicular to both the x-direction and the y-direction, and which can rotate about the z-direction. A solid matter dosing head (350), provided as a tool, is automatically attached in a removable manner to the tool holder (1) by means of a permanent magnet (351). The tool can be easily exchanged for another tool due to this automatic removable attachment of said tool to the tool holder (1) involving the use of a permanent magnet (351).

Abstract: An adapter assembly (28) for use in an automated handling equipment system includes a first component and a second component that is selectively mountable to the first component. At least one first code member (82) is associated with the first component and at least one second code member (84) is associated with a second component. The at least one first code member and the at least one second code member have a variable orientation relative to each other that controls whether the second component can be mounted to the first component.

Abstract: A mechanical device is used for mounting and/or dismounting a laser nozzle on and/or from a nozzle mount of a laser processing machine for processing workpieces, especially metal sheets. The mechanical device includes a nozzle magazine having a nozzle holder support on which a nozzle holder for a laser nozzle is supported. In addition, the mechanical device has a support positioning drive by means of which the nozzle holder support is positionable together with the nozzle holder in a support positioning direction. A lifting device of the mechanical device serves to position the nozzle holder, when positioned in the support positioning direction in a lifting stand-by position, relative to the nozzle holder support in a positioning lifting direction extending perpendicular to the support positioning direction.

Abstract: A reconfigurable system having at least one detachable component and at least one detachable head assembly. The reconfigurable system may be a numerically controlled (NC) machine for manufacturing processes, such as milling or automatic fiber placement (AFP). The reconfigurable system may further comprise a gantry structure comprised of movably attached beams on which detachable components may be movably attached. The detachable components may include a concave component and a convex component. At least one detachable head assembly may be movably attached to at least one of the detachable components. The detachable components and head assemblies may be at least one of physically, electrically, and pneumatically connected to a connecting assembly attached to the gantry structure.

Abstract: The inventive device comprises a tool holder, which can be displaced in an x-direction, in a y-direction that is perpendicular thereto, and in a z-direction that is perpendicular to both the x-direction and the y-direction, and which can rotate about the z-direction A solid matter dosing head, provided as a tool, is automatically attached in a removable manner to the tool holder by means of a permanent magnet. The tool can be easily exchanged for another tool due to this automatic removable attachment of said tool to the tool holder involving the use of a permanent magnet.

Abstract: A component mounting apparatus including an exchangeable suction nozzle is easily supplied with another suction nozzle to replace the former suction nozzle. A plurality of mounting modules 12 having respective identical constructions are arranged adjacent to each other such that the mounting modules are oriented in a same direction, so that the mounting modules 12 constitute a mounting-apparatus line. When the mounting-apparatus line is reset, a mounting head 40 is used to exchange automatically suction nozzles 158 between a nozzle stocker 330 and a nozzle carrier plate 400, so that a current arrangement of suction nozzles on the nozzle stocker 330 is changed to a new arrangement of suction nozzles for the next component mounting operation. The nozzle carrier plate 400 can hold a plurality of sorts of suction nozzles 158 that are needed for the next component mounting operation but are not held by the mounting modules 12.

Abstract: An exemplary machine tool (20) includes a base (31) and a plurality of components (33, 34, 35). The movable components are made of metal or metallic alloy with density in a range from about 1.7×103 kg/m3 to about 3.3×103 kg/m3. The movable components have relatively small weight. Therefore, the machine tool can remain stable, when machining, although the base is small and light because of the light movable components. A precision of the machine tool is not decreased, and miniaturizing the machine tool is practicable.

Abstract: A machine tool is described, in particular a grinding machine, with a tool storage device. The tool storage device contains an outer magazine wheel (34) and an inner magazine wheel (58), which are independently concentrically rotatable in a controlled manner. The outer magazine wheel (34) preferably holds grinding tools (56), while the inner magazine wheel (58) preferably holds grinding wheel protectors (68). The grinding tool (56) and the grinding wheel protector (68) are removed from the tool storage device and are returned to the latter by the tool spindle (30). The grinding tools (56) and grinding wheel protectors (68) can be exchanged independently in arbitrary combinations and possibly also simultaneously.

Abstract: Step portions with an L-shaped section each having a vertical restriction surface and a horizontal engagement surface are provided on both sides of a main body portion of a tool. On one side of a holding portion placing and holding a mounted tool to be exchanged, a first engagement member has a first engagement projection piece that opposes the engagement surface of one of the step portions, and has an end surface in abutment against the restriction surface. On the other side of the holding portion, a second engagement member has a second engagement projection piece having its intermediate part opposed to the engagement surface of the other of the step portions, and end surfaces on both sides are in abutment against the outer periphery of the main both portion on both sides thereof. The first and second engagement members are movable between an engagement position and a withdrawal position with respect to the step portions.

Abstract: The invention provides a torch changer with a large capacity for a flying optics-type laser beam machine. A table 15 of the laser beam machine is fixed, and a laser beam working head 50 moves in three axial directions. A torch changing unit 300 is disposed on a setup station 90 disposed outside the processing area at the end of the table. A torch storing device 100 stores a large number of torch holders 150 supported by forks on the outer side of a chain 130. A torch holder shifter 200 sends out the torch holder 150 positioned at a shift position towards the torch changing unit 300, where the torch attached to the working head 50 is changed.

Abstract: A processing machine arrangement includes a processing machine with at least one tool spindle and with a tool magazine for offering tools to the processing machine for the machining of a workpiece. A method for the operation of such a processing machine arrangement is also provided. There is a robot with a multi-joint robot arm for providing the tool magazine with tools from a tool storage supply means and for removing spent tools from the tool magazine, and that the tool magazine includes a tool holder portion which is alternatingly able to be shifted, and more especially pivoted, into a robot access space for a tool change of the robot and into a spindle access space for a tool change on the tool spindle, with the tool holder portion having a tool holder for holding a tool.

Abstract: A tool changer includes a tool attachment mechanism and a changer electronics module. The changer electronics module implements a tool changer node on a device network for the tool changer and a tool plate node on the device network for a tool plate of an automated tool that may be latched to the tool changer.

Abstract: A robotic system including a rotatable turntable that has an arm pivotally mounted on the turntable for rotation about an axis displaced from the turntable's rotational axis. The arm's axis of rotation may be positioned nearer the turntable's axis of rotation than a bearing that supports the turntable on a base. The arm may have a portion that extends in a direction transverse to the arm's axis of rotation located below the turntable. The turntable may be supported on the base by a single bearing having portions located in a common plane.

Abstract: An automatic collimator changer of a radiation treatment system.

Abstract: The invention provides a rotation-type changer of torches and nozzles for a laser beam machine having a movable table. The automatic tool changer 100 of a laser beam machine is equipped with a plurality of torch holders 160 and a nozzle changer 170 disposed on the magazine 150. The working head 40 moves in a Y-axis direction perpendicular to the paper plane and in a Z-axis direction. The torch holder 160 storing the torch to be exchanged is rotated along the Y-axis path line and the working head 40 is lowered to exchange the torch.

Abstract: The invention provides a rotation-type changer of torches and nozzles for a laser beam machine having a movable table. The automatic tool changer 100 of a laser beam machine is equipped with a plurality of torch holders 160 and a nozzle changer 170 disposed on the magazine 150. The working head 40 moves in a Y-axis direction perpendicular to the paper plane and in a Z-axis direction. The torch holder 160 storing the torch to be exchanged is rotated along the Y-axis path line and the working head 40 is lowered to exchange the torch.

Abstract: A wafer handling device (10) comprises at least one tool component (12), a base rack (22) and a robot (20) for moving the wafers (14). In order to improve the accessibility of a wafer handling device (10), the robot (20) is mounted on a coupling rack (26) and with this coupling rack (26) is mounted on the base rack (22) independently of the tool component (12).

Abstract: A machine tool comprises a main body having a plurality of parts and an NC apparatus connected to the main body. The NC apparatus includes a display means for displaying a part information about the plurality of parts constituting the main body, a memory means for memorizing the part information, and a control means for controlling the display means and the memory means. The part information includes the ID number, names, types and attachment positions of the parts. The control means displays either the ID numbers and the attachment positions of the parts or the ID numbers, the names, and the types of the parts on the display means selectively.

Abstract: Step portions with an L-shaped section each having a vertical restriction surface and a horizontal engagement surface are provided on both sides of a main body portion of a tool. On one side of a holding portion placing and holding a mounted tool to be exchanged, a first engagement member has a first engagement projection piece that opposes the engagement surface of one of the step portions, and has an end surface in abutment against the restriction surface. On the other side of the holding portion, a second engagement member has a second engagement projection piece having its intermediate part opposed to the engagement surface of the other of the step portions, and end surfaces on both sides are in abutment against the outer periphery of the main both portion on both sides thereof. The first and second engagement members are movable between an engagement position and a withdrawal position with respect to the step portions.

Abstract: Tool-switching device for a machine for measuring coordinates wherein the tool is fastened on the tool-carrier and held by the action of elements exerting an axial force. The locking force is taken over symmetrically by the elements of a Boys connection, which increases the repeatability of the connection; in one embodiment, two pins or spheres are driven by a sliding bushing provided with two “V”-shaped slits or with two lateral gorges. In the subsequent embodiments, the pins are replaced by spheres, by levers or by a stirrup.

Abstract: A machine tool capable of reducing the lateral width of the upper part thereof by reducing the lateral width of a bed (1) while machining through the same lateral moving distance of a spindle (10) as before, comprising longitudinal guide rails (2) installed on the bed (1), a slide (3) installed through the guide rails (2) movably in a longitudinal direction, a column (6) movable in vertical direction, wherein first cover plates (25) are fixed at the right and left sides of a vertical moving route for the spindle (10), side cover plates (26) are installed continuously with the outer end edges of the first cover plates (25) so as to be turnable rearward, a second cover plate (32) is installed at the front sides of the first cover plates (25) and the side cover plates (26) integrally with the slide (3) so as to cover the front side of the moving range of the column (6), and a shielded machining space (SK) is formed at the front of the second cover plate (32).

Abstract: An apparatus for automatically changing a tool tip member for a robot includes a tip member changing jig disposed in an operational area of the robot. The tip member changing jig includes a base member, a rotating member supported by the base member so as to be rotatable about a rotation axis, and tip member holding means disposed at positions that are offset from the rotation axis of the rotating member. The tip member holding means holds the tool tip member so that a central axis of relative rotation, for threadedly mounting or demounting the tool tip member on or from the tool body, extends substantially parallel to the rotation axis of the rotating member and so that rotation of the tool tip member, with respect to the rotating member, is locked.

Abstract: An apparatus for automatically changing a tool tip member for a robot includes a tip member changing jig disposed in an operational area of the robot. The tip member changing jig includes a base member, a rotating member supported by the base member so as to be rotatable about a rotation axis, and tip member holding means disposed at positions that are offset from the rotation axis of the rotating member. The tip member holding means holds the tool tip member so that a central axis of relative rotation, for threadedly mounting or demounting the tool tip member on or from the tool body, extends substantially parallel to the rotation axis of the rotating member and so that rotation of the tool tip member, with respect to the rotating member, is locked.

Abstract: A splitting blade changing device for a block splitter, comprising a revolving mechanism in which an upper rotary member is suspended by a supporting plate which is moved up and down by a cylinder installed in an upper part of a gate-like frame, a plurality of upper blades are held on a circumferential face of the upper rotary member, a slit is provided in a table which is supported in a lower portion of the gate-like frame via buffer members, an lower rotary member fixed detachably on a bottom plate of the gate-like frame is installed in a lower part of the table, a plurality of lower blades facing the upper blades are held on a circumferential surface of the lower rotary member such that one of the lower blades protrudes from the table surface via the slit of the table, and the upper and lower rotary members sequentially select and install the upper blades and lower blades.

Abstract: A rotary die cutter having an anvil cylinder that is operable alternately with one of a pair of die cylinders includes a vertical support and rectilinear translation arrangement that permits selective repositioning of each of the die cylinders between an operative position and a stand-by position utilizing various combinations of horizontal and vertical linear movement of the cylinders. In the presently preferred embodiment, the supporting frames of all three cylinders, in operation, are in abutting contact and vertically aligned to assure that shock loads are directed vertically downwardly into the supporting base. The operator has direct access to each of the die cylinders for maintenance and order change from a single station positioned below the board line.

Abstract: The invention aims at providing a tool change magazine for laser beam machine to improve machining efficiency of a laser beam machine by installing a tool change magazine containing laser machining tools equipped with a torch and a nozzle replaceably attached to the tip of the torch. A setup station 100 for laser machining tools is installed outside a machining area of a laser beam machine. It includes a tool station 200 of the laser beam machine. The tool station 200 of the laser beam machine is equipped, for example, with four tool change magazines 220. A laser machining tool 60 is returned from a machining head 50 to a tool change magazine 220 and a new laser machining tool 60 from a tool change magazine 220 is mounted on the machining head 50.

Abstract: A plurality of atomizers or other tools are disposed in a mounting plate (10) in storage places (12), respectively. The mounting plate (10) is rotatable relative a paint robot of a coating installation and has a pneumatic lock or a tool holder (19) that can only be released automatically during storage of the atomizers by an external control device of the mounting plate.

Abstract: Device for automatically mounting and dismantling tools (10) on a robot (16), comprising means (1) for storing a number of identical fresh tools (10) and means (11) for centering one of these tools (10) in a position for automatic mounting on the robot (16), each tool (10) comprising an axial orifice for mounting on a rotating pin (15) provided on the robot (16).

Abstract: A robotic tool changer with an improved safety interlock includes a master unit, a tool unit, and a coupler movable between coupled and decoupled positions and operative to couple the master and tool units. A circuit for actuating the coupler is associated with the tool unit, for connection to an interlock that closes when the tool is safely parked in a tool stand. The circuit enables the coupler to assume the decoupled position when the master and tool units are coupled and the circuit is closed. The robotic tool changer additionally includes a circuit operative to enable the coupler to assume the decoupled position when the master unit is decoupled from the tool unit.

Abstract: An apparatus for automatically changing a tool tip member for a robot includes a tip member changing jig disposed in an operational area of the robot. The tip member changing jig includes a base member, a rotating member supported by the base member so as to be rotatable about a rotation axis, and tip member holding means disposed at positions that are offset from the rotation axis of the rotating member. The tip member holding means holds the tool tip member so that a central axis of relative rotation, for threadedly mounting or demounting the tool tip member on or from the tool body, extends substantially parallel to the rotation axis of the rotating member and so that rotation of the tool tip member, with respect to the rotating member, is locked.

Abstract: The invention relates to a device for interchanging suction pipettes which can be removed from a magazine and coupled to a fitting head of a fitting device and detached from the fitting head and deposited in the magazine. The fitting head has, on its side facing the magazine, a motor on whose driven shaft a star-shaped part and a latching plate are mounted. The latching plate has at least one nub (121) which, after insertion of the star-shaped part into a star-shaped cutout in the suction pipette held in the magazine and after rotation of the star-shaped part and the latching plate into a locking position, engages in a notch, and which, on insertion of a suction pipette held on the star-shaped part into the magazine, can be moved out of the notch.

Abstract: A transporting and positioning device for tool magazine of a bridge type machine tool comprises a pair of parallel guide-ways on a plate, a seat slidably mounted on the guide-ways for supporting the tool magazine, a drive mechanism including a cylinder, an extendable positioning shaft, a connection block adjacent the plate the connection block including a top hole and being fixed to the table, and a second cylinder having an extendable second positioning shaft; In an operating state of the machine tool, the second positioning shaft is actuated by the second cylinder to project an adjustable distance through the plate to urge against the seat for fastening the seat and the tool magazine. A tool change is performed after fastening the positioning shaft in the hole. The invention is also applicable to EDM.

Abstract: In an automatic machine for wrapping items for the tobacco industry, a manipulator is designed to transfer at least one interchangeable processing tool toward and away from an operating position, the processing tool being mounted on a frame of the automatic machine.

Abstract: A machining device comprising five axial kinetic coordinate systems that can be controlled simultaneously, three axes of which are linear moving axes and two axes of which are rotary axes, with one axis of the five axes being provided with a tool rotating function, whereby said machining device is equipped with a cutting tool 51 and a friction stir welding tool 52. The current value observed when a large-diameter portion of said tool 52 contacts the work object is set in advance, and by observing the torque current of the rotary shaft of the tool 52 during friction stir welding, the insertion depth of the tool 52 can be controlled by maintaining the observed torque current above the preset current value, thus providing a good weld. A single device can provide both the cutting and the welding. Thus, it is possible to reduce equipment cost, installation space, plant area, lead time and production cost.

Abstract: A semiconductor device includes a semiconductor substrate which has a first main surface having circuit elements formed thereon, a second main surface substantially opposite to the first main surface, and a plurality of side faces provided between the first main surface and the second main surface. The semiconductor device also includes a plurality of external terminals formed over the first main surface and respectively electrically connected to the circuit elements. The second main surface has a central area and a peripheral area surrounding the central area, and a first steplike section formed in the peripheral area.

Abstract: A machine tool capable of reducing the vibration of a spindle head to enable a high-precision machining, wherein a column (2) is mounted fixedly onto a bed (1), a first saddle (4) forming a square frame body of rectangular cross-section is mounted on the column (2) movably in vertical direction (f1), a second saddle (6) forming a square frame body (6a) smaller in size than the above square frame body is mounted inside the first saddle (4) movably in lateral direction (f2), a horizontal guide frame (6b) of a specified length is mounted on the rear surface of the square frame body (6a) of the second saddle (6) in the state of being crossed at right angle to the rear surface, rail members (5, 7) are laid down on square frame body upper and lower prismatic bodies (4b, 4c) of the first saddle (4) and the horizontal guide frame (6b) of the second saddle (6), and concrete is filled sealingly into the square frame body of the first saddle (4) and/or the square frame body of the second saddle (6) and the horizontal gu

Abstract: Disclosed is an apparatus for passing solid objects for use in a robotic tool changing system. The apparatus comprises a housing mounted on either a master assembly or a tool assembly. A tubular member is disposed in the housing and defines a passage through which solid objects can pass. The tubular member includes a head portion at one end and a stem portion at the other end that is connected to a solid objects feed tube. Means are provided for retaining the tubular member in the opening in the housing for movement relative to the housing during the coupling and uncoupling of the master and tool assemblies to accommodate misalignment of the master and tool assemblies. Another apparatus is disclosed for passing solid objects from a source to a work tool. The apparatus comprises first and second housings mounted on a master assembly and tool assembly, each housing tubular members.

Abstract: An assembling device for supplying and assembling a part on an object has a table and a first moving portion disposed above the table, where the first moving portion includes a guide and a movable body. The guide extends in a first direction parallel to a surface of the table out of a range in which the table is positioned. The movable body is movable to a position out of the range in which the table is positioned. The assembling device also has a second moving portion disposed on the table and movable in a second direction transverse to the first direction, the object being mounted on the second moving portion.

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: When the amount of a change in load current supplied to a grinder is not more than a predetermined threshold value, the amount of piercing into a workpiece by the grinder is controlled according to the load current. When the amount of a change in load current exceeds the predetermined threshold value, the grinding speed of the grinder is controlled according to the load current. When performing a plurality of operations with one robot, a position correction value calculated in one operation is utilized to correct a target position in another operation.

Abstract: An apparatus for tightening connecting rod attachment members comprises a rotating mechanism for rotating and positioning a crankshaft about a center of its shaft section, angular deflecting mechanisms for deflecting nut runners about the center of the shaft section, axial displacement mechanisms for displacing the nut runners in an axial direction of the crankshaft, and inter-axis displacement mechanisms for making mutual approach or separation for a distance between the pair of nut runners and a distance between the pair of nut runners. The nut runners are operated to fasten a connecting rod to the crankshaft. Accordingly, one tightening apparatus can be used to tighten the connecting rod attachment members to the crankshaft even when the type of the crankshaft is changed. The tightening apparatus is applicable to a production line for carrying multiple types in a mixed manner.

Abstract: The invention relates to a machine for punching a printed circuit plate. The machine comprises a plurality of punch blocks that are movable relative to the structure. Each block comprises a frame that is movable relative to the structure, displacement means for positioning each frame relative to the structure as a function of instructions received, a non-removable punch die secured to the moving frame and located beneath the plane corresponding to said plate, a punch tool support secured to said frame and disposed above the plane of said plate and positioned relative to the die, said support including means for removably receiving one of a plurality of punch tools adapted to the characteristics of said plate and for positioning said tool relative to the support, and means for controlling vertical displacement of said tool in said support.

Abstract: A system for performing work in a hot cell includes a support arm having a first end and a second end and a movable arm having an end selectively engageable with the first end to form a rigid connection. Complementary coupling devices are disposed on the first end of the support arm and on the end of the movable arm and mate together when the movable arm is joined to the support arm.

Abstract: A crankshaft is mounted in a fixture which rotates the crankshaft about its longitudinal axis and which tilts the crankshaft about a horizontal axis to allow machining of holes such as oil holes at various rotational positions and at various tilt angles to the longitudinal axis. Preferably, a cutting tool moves along a horizontal plunging axis Z to machine the depth of the hole and moves along a horizontal X axis to machine holes on or offset from the longitudinal axis. The cutting tool may also be shifted vertically along a Y-axis. Preferably, a pair of crankshafts are mounted side-by-side in the fixture to machine two crankshafts simultaneously. The fixture is mounted for tilting by trunnions. The pair of crankshafts are spun about the longitudinal axes by a motor carried on the tiltable fixture. An automatic tool changer and loading apparatus store cutting tools and associated guide bushings for the cutting tools.

Abstract: A crankshaft is mounted in a fixture which rotates the crankshaft about its longitudinal axis and which tilts the cranksahft about a horizontal axis to allow matching of holes such as oil holes at various rotational positions and at various tilt angles to the longitudinal axis. Preferably, a cutting tool moves along a horizontal plunging axis Z to machine the depth of the hole and moves along a horizontal X axis to machine holes on or offset from the longitudinal axis. The cutting tool may also be shifted vertically along a Y-axis. Preferably, a pair of crankshafts are mounted side-by-side in the fixture to machine two crankshafts simultaneously. The fixture is mounted for tilting by trunnions. The pair of crankshafts are spun about the longitudinal axes by a motor carried on the tiltable fixture. An automatic tool changer and loading apparatus store cutting tools and associated guide bushings for the cutting tools.