Abstract: A table unit for a machine tool includes a tilting table provided on a base and configured to be swingably indexable around a horizontal axis, a rotary table provided on the tilting table and configured to be rotatably indexable around a vertical axis orthogonal to the horizontal axis, and at least one motor disposed in the tilting table and configured to be driven to rotate the rotary table. An axis of a motor shaft of the motor is arranged in a plane formed by the horizontal axis and the vertical axis.
Abstract: A jig device holding a work piece is used with a milling machine that cuts from the work piece a prosthesis having a surface essentially free of defects. The jig device is inserted repeatedly into the machine in the same predetermined location, even upon inverting the jig device. This maintains the spatial relationship between the jig device and milling so, at start up, they are always in the same exact spatial relationship. The milling machine partially cuts through a first side of the work piece to form in the work piece a cavity having a surface part corresponding to at least a portion of the prosthesis being made. The jig device is then removed from the machine, inverted and reinserted into the machine at the same predetermined location. A support material is placed in the cavity prior to reinserting the jig device. Upon reinserting the jig device, the machine precisely cuts through an opposed side of the work piece to form within the work piece a prosthesis having a surface essentially free of defects.
Abstract: A dust collecting case provided on a cutting machine for cutting a target object includes an outer case member and an inner case member. The outer case member includes a bottom plate, a first side member extending from a peripheral edge of the bottom plate, and a suction port. The inner case member includes a second side member positioned inside the first side member, and an upper member provided between an upper portion of the first side member and an upper portion of the second side member such that the upper member closes from above a space surrounded by the first side member and the second side member. The second side member includes an inner peripheral surface that faces and surrounds an outer periphery of the target object. A gap is located in between an outer surface of the second side member and an inner surface of the first side member.
Abstract: High precision machining is enabled by eliminating the need for a conventional swiveling table, and by enhancing rigidity for supporting a work by relatively reducing the distance from the top surface of a stationary body section (1) to the position for machining a work by means of a tool on a rotary spindle (17). A pair of guide tracks (28a, 28b) respectively passing two positions separated in the X axis direction of the stationary body section (1) and in the Z axis direction intersecting the X axis direction perpendicularly are allowed to guide feed tables (30a, 30b) to be movable independently.
Abstract: A multi-spindle machining machine comprises a base including a working room to move a tool and a workpiece; a working head including a driving spindle disposed on a lower end thereof to clamp the tool; a carrier including a seat fixed on one side of the working room, a rotary shaft mounted on the seat laterally to drive the seat to rotate in an axial direction, a fixing holder connected to the rotary shaft to fix the workpiece to the fixing holder; a lateral driving device disposed on the base and located on one side of the working room in a horizontal direction to drive the working head to move in X and Y axes; a vertical driving device disposed on the base and located on another side of the working room in a lateral direction to drive the seat to move in Z axis direction.
Abstract: Pneumatic particulate material fill systems and methods are disclosed. A particulate material fill system includes a cyclone separator having an inlet adapted to receive pneumatically conveyed particulate material. The cyclone separator has a first outlet adapted to vent air and a second outlet adapted to discharge solids. The particulate material fill system includes a tank adapted to receive solids discharged from the cyclone separator via the second outlet. The tank is adapted for use at atmospheric pressure.
March 3, 2010
Date of Patent:
November 20, 2012
Halliburton Energy Services Inc.
Chad Adam Fisher, Calvin Lynn Stegemoeller
Abstract: A main shaft (6) movable in a direction of X-axis is provided at a position on one side of a foundation (1), and a lateral stand (12) is fixed on the top portion of the rotation support shaft (10). On the upper surface of the lateral stand (12), there is provided a work grip rotation feed mechanism portion (13) for rotating bar-like work (w) about a specific lateral axis (S) on the upper surface. The rotation support shaft (10) and the specific lateral axis (S) are horizontally separated by a required distance (L0). The rotational position of the rotation support shaft (10) is varied between the case where the bar-like work (w) is processed by the operation of the main shaft (6).
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, movement of the turn table in a Y-axis direction, and movement of a spindle in a Z-axis direction, 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 center in the X-axis direction shorter.
April 21, 2006
Date of Patent:
November 21, 2006
Aisin AW Co., Ltd., Yamazaki Mazak Kabushiki Kaisha
Abstract: A work pallet that is arranged to be simple in construction capable of machining five faces of a work by rotating it around the axis of rotation. A work pallet (4) comprises a base body (5) detachably fixed to the table (3) of a machine-tool (1), a pallet main body (6) fixed on the top face of this base body (5), and a work setting face forming body (7), provided on this pallet main body (6) in a way to turn around the rotational axis (20) and having a work setting face (21a) for fixing a work (2), and the pallet main body (6) is provided with a clamping mechanism (31) for releasably fixing the work setting face forming body (7), and a rotational driving mechanism (32) for rotationally driving the work setting face forming body (7) around the rotational axis (20).
Abstract: A machine for carrying out mechanical workings preferably by showing removal includes a frame arranged for receiving a semi-worked piece having a cross section exhibiting dimensions remarkably smaller than the length of the piece measured along its own longitudinal axis. The semi-worked piece is arranged with the longitudinal axis along a working axis in a working station. A clamp is arranged at a number of cross sections of the semi-worked piece for locking the semi-worked piece in the working station. A tool is arranged for carrying out workings on faces of the semi-worked piece. A support to which the semi-worked piece is fixed by the clamp is suitable to be rotated about a service axis.
Abstract: The present invention provides a remote controlled machine axis (or indexer) system that comprises a horizontal base plate, a first vertical plate, and a second vertical plate, wherein the first vertical plate and the second vertical plate are coupled to the horizontal base plate. The system further comprises a first arbor coupled to the first vertical plate, a second arbor coupled to the second vertical plate, a bearing positioned through the first vertical plate and the first arbor, a rotatable base plate coupled to the first arbor and to the second arbor, and a vice coupled to the rotatable base plate. The system also comprises a wireless transceiver coupled to the horizontal base plate, a servomotor coupled to the wireless transceiver and to the horizontal base plate, an integrated power source coupled to the servomotor, to the wireless transceiver, and to the horizontal base plate, and a reducer coupled to the integrated servomotor and to the second vertical plate.
Abstract: A process for edge-machining an optical (spectacle) lens including preliminary machining of an edge of the lens rotatable in controlled manner about a rotational axis of a workpiece by a first edge-machining tool adjustable radially relative to the rotational axis of the workpiece, whereby the lens is given a circumferential contour which corresponds to the circumferential contour of a lens holder apart from a slight degree of oversizing, contactless measurement of the preliminarily machined lens edge, and finish-machining of the lens edge, taking account of the detected edge data of the preliminarily machined lens, by means of a second edge-machining tool adjustable radially relative to the rotational axis of the workpiece, whereby the lens is provided with a circumferential contour substantially complementary to the circumferential contour of the lens holder.
Abstract: The machine tool comprises a vertical support (10) with a guide (11) arranged thereon for vertical movement of a workpiece carrier (13) holding a workpiece (15) along an X-axis. Two headstocks (24,30) are each movable along horizontal guides (27,28) in the Y-direction. The guides (27,28) form a frame, with its window (23) closed by a louver provided with passage openings for the headstocks (24,30). This arrangement creates a laterally closed machining chamber which comprises vertical walls and does not present any obstacles to falling chippings. Since the chippings need not be washed off, spray cooling may be used for minimum-quantity lubrication. In this manner, the liquid acting on the chippings is reduced.
Abstract: In a machine tool (2), in particular for cutting treatment of workpieces (9) comprising a machine frame, a workpiece table (15) borne on the machine frame and an approximately horizontally disposed processing unit (8) which is mounted to the machine frame, the processing unit (8) is mounted also to a support (6) of the machine frame overlapping the workpiece table (15). This upper mounting prevents displacement of the processing unit relative to the workpiece due to the forces acting thereon during processing, in particular in the Z-direction. These forces are accommodated by the machine frame which is self-contained through the support.
Abstract: The invention relates to a workpiece support assembly including an indexing unit adapted for the automated adjustment of a workpiece being machined. The assembly includes a central support column having at least one indexing unit secured thereto. The indexing unit includes a base member integrated with the central support column, a main body to which a workpiece may be selectively secured and a locking assembly permitting the selective locking and rotation of the main body relative to the base member. The main body is mounted on the base member for selective rotation required to rotate a workpiece as mounted.
Abstract: A multi-purpose machine tool is provides for high volume secondary operations. Multiple machining heads and eight degrees of freedom provide for maximum versatility and adaptability for convenient set-up.
Abstract: Apparatus for manufacturing a bone dowel includes a machine base with tracks on a surface thereof. Modules configured to slide in the tracks may include a module for a high speed rotary tool, a collet module, a vise module and a threading module.
Abstract: The system constructed according to the present invention operates by properly positioning a base compact disc (CD) onto a cutting table and then cutting the CD to a preprogrammed shape. Base CDs are stacked on an elevator system. The CDs include one side on which data is recorded, and another side on which the CD label is printed. A robotic arm with a vacuum gripper then picks-up a CD from the stack and moves the CD to a cutting table. While the arm moves the CD, a machine vision system takes a picture of the CD label and compares the picture to an image of the label stored in data. An image mapping program then determines the rotational orientation of the CD by comparing the picture and data image. Once the orientation of the disc is known, the robot arm rotates the disc a calculated amount so that it can then be placed on the cutting table in a proper normalized orientation.
Abstract: A machine tool has a vertical-axis tool spindle that receives a tool, and a workpiece table on whose upper side is arranged a fixture for clamping in a workpiece. The tool spindle and workpiece table are displaceable relative to one another in a working region in which the workpiece is arranged. The working region extends at least partially, in a direction transverse to the spindle axis, outside the workpiece table; the fixture projects in that direction beyond the table, holds the workpiece there, and is open at the bottom so that chips that are produced can freely fall downward in the direction of the spindle axis.
Abstract: A movable column is adjustable longitudinally and transversely in controlled fashion on a machine bed which defines a longitudinal direction and a transverse direction. A tool spindle is adjustable in controlled fashion on the movable column along a spindle axis normal to both the longitudinal direction and the transverse direction. A clamping axis is defined by a tool support which is rotationally adjustable in controlled fashion about this clamping axis and includes a clamping device through which a material rod can be pushed and in which it can be clamped. A front portion of the material rod, presenting the workpiece to be machined, is disposed within the working range of the tool spindle. A supply device is provided for pushing the material rod through the clamping device.
Abstract: Apparatus for the machining of bar material, profiles and the like comprises a rotation mechanism with a rotational drive. The rotation mechanism has a workpiece holder which holds the workpiece, and the said workpiece holder rotates about an axis parallel to the longitudinal axis of the workpiece.
Abstract: A universal combined milling and boring machine having a machine column, a compound slide that can traverse horizontally on the machine column, a spindle head mounted on the compound slide so that it can traverse vertically, with a work spindle, a rotary table mounted so it can pivot over a supporting console on the machine column and a control unit. Multiaxial machining with relatively inexpensive control technology and a control system with optimum visual contact with the machining site are made possible according to this invention due to the fact that the supporting console is mounted on the machine column so it can rotate about a horizontal swivel axis. The swivel axis is offset laterally relative to the central axis of the combined milling and boring machine; the rotary table is mounted centrally on the console so it can rotate about an axis of rotation normal to the swivel axis; and the control unit includes a portable control console.
October 9, 1997
Date of Patent:
June 8, 1999
Deckel Maho GmbH
Gerd Hoppe, Alfred Geissler, Karl-Heinz Schafer
Abstract: The present invention relates to a copying cutter provided with a cylindrical or conical body having a spherical end, constituting the active portion of the cutter, said end including a plurality of flutes inclined at a determined angle .theta. relative to the longitudinal axis of the cutter and formed along circular arcs at a determined distance x from the midplane P of the cutter, an inside face and an outside face of each of the flutes constituting, after machining, respectively a cutting face and clearance faces of each tooth of the cutter. The clearance faces comprise a first clearance face and an additional clearance face presenting at least a first facet. The cutting face has a cutting angle .gamma. given by the following equation: ##EQU1## where R is the radius of the cutter. The present invention also relates to a method of manufacturing the cutter.
Abstract: An improved method of moving a rotary fixture (20) from a first angular position to a second angular position includes the steps of: providing a body (25); mounting the fixture on the body for rotational movement about an axis (x--x); mounting a pin (23) in the spindle (22) of a machine tool; moving the pin so as to engage the fixture at a location eccentric to the axis; and selectively moving the pin relative to the axis from one location to another; thereby to rotate the fixture from the first angular position to the second angular position.
May 24, 1993
Date of Patent:
September 8, 1998
Brian E. Fitzgerald, Donald F. Lienert, Ronald J. Pascucci
Abstract: An ultrasonic motor with a vibratory body which has plural groove groups formed in a surface of the vibratory body. Each groove group has at least two grooves which are formed parallel to one another. If the vibratory body has an annular shape, a groove forming member having as many cutting members as grooves in each groove group moves in a radial direction of the vibratory body while the cutting members rotate, simultaneously cutting each groove of a groove group in the surface of the vibratory body. When advancing vibratory waves are generated in a circumferential direction of the vibratory body, the state of vibration of the grooves in a groove group differs, and the resonance of the grooves is suppressed. If the vibratory body has a linear shape, the cutting members rotate as the groove forming member moves perpendicular to the vibratory body, simultaneously cutting each groove of a particular groove group.
Abstract: A regenerative turbine pump apparatus which includes a housing having an inlet and an outlet and a generally circular impeller having a circumference and a geometric axis. The impeller is mounted for rotation within the housing about the geometric axis and has first and second generally circular faces. At least the first generally circular face has a plurality of vanes extending from the circumference generally toward the geometric axis. Each of the vanes has generally planar mutually parallel side walls disposed in oblique relationship to a tangent to the impeller proximate to the intersection of the vane and the circumference. Adjacent vanes about the circumference each being separated by a slot extending from the circumference and extending to a substantially rectilinear line, the substantially rectilinear lines collectively define a plurality of steps around the impeller.
Abstract: A machine tool has a rotatable table with a plurality of lock plates located on the underside thereof at circumferentially spaced locations, and a geneva drive mechanism arranged to coact with the lock plates in rotatably indexing the table. The lock plates are shiftable with respect to the table by means of cooperating pairs of rotatably adjustable eccentric pins. Machine screws releasably fix the lock plates at selected positions of adjustment. The lock plates are shifted and releasably fixed from above the table.
Abstract: The invention relates to the formation of an element, called an "illusion", for an article of jewelry, including a method for forming an illusion, and a device for forming an illusion. First and second substantially parallel grooves are formed in an operatively upper surface of a workpiece, the workpiece is rotated through a predetermined angle, and additional pairs of first and second parallel grooves are formed in the upper surface of the workpiece in order to leave a desired number of spaced prongs projecting from the remaining portion of the workpiece. Such prongs are used to grip and hold a diamond or other stone in position on the workpiece. Preferably each of the pairs of grooves, which can be arcuate grooves, are formed simultaneously. The preferred forming device includes discrete cutting buts arranged in a spaced parallel relationship, with each cutting bit being elongated and having a pair of opposed, bevelled, longitudinal sides, with the bevelled sides meeting for form a cutting edge.
Abstract: The spindle of a machine-tool is mounted on a carriage movable along a horizontal transverse member which is carried by the columns of a part of the frame of the machine having the shape of a closed porch, and which is situated in front of these columns. This transverse member moves vertically along the columns. The workpiece-carrying table, which can rotate on itself, is mounted on a carriage movable in a direction parallel to the spindle axis on a portion of the frame situated in front of the porch. Thus, the machine is compact and, whatever the extreme positions of its movable elements might be, no cantilever condition is produced which could generate machine deformations.
Abstract: Rotary-pallet system, in particular for multi-directional machining of the pieces (8) to be machined. In the said system there is a body piece (2), one of whose ends (A) is attached to a holder, which said body piece is rotable around a longitudinal axis (A-B), and against whose longitudinal guide faces one or several pieces (8) to be machined can be positioned. One or several wedge pieces (3) can be attached to the edge of the guide face on the body (2), the wedge face on the said wedge piece being pressed towards a side of the piece (8) to be machined. A counter-face (4, 13) is provided at the opposite side of the piece to be machined. The wedge piece (3) can be attached to the body (2) by means of a fastening member (1), which is directed in such a way diagonally that the direction of the fastening movement of the wedge piece approaches both the body (2) and the piece (8) to be machined at the same time.
Abstract: A method and apparatus for determining the angular position of a workpiece and for positioning the same relative to at least one tool. The workpiece has at least one set of teeth. Pulses are derived from a rotating reference workpiece and from a reference shaft which has a known gear ratio with the reference workpiece, and consequently also turns. A first phase measurement is undertaken between the pulses, the result of which is stored as the reference value. The reference workpiece is replaced with a workpiece which is to be machined and which is provided with teeth. A second phase measurement between the pulses of the refernece shaft and of the reference workpiece are undertaken in a second measuring operation. The reference value of the first phase meaasurement is compared with the result of the second phase measurement. The workpiece is turned relative to the reference shaft in conformity with the difference between the two measured values.
Abstract: Diametrically opposed studs are formed from a flange on the unfinished portion of a tubular threaded connector by first milling the flange to leave diametrically disposed portions of a cross sectional area such that a stud may be formed from each such portion. Apparatus for use in thus forming the studs enables each connector to be held with its unfinished portion exposed by means of a selected one of the four collets mounted on a turntable and spaced 90.degree. apart. The turntable is indexed from a loading and unloading station to a second station where the major part of the flange at one side of a connector is removed when a collet reaches that station. When the turntable is again indexed, the connector held by that collet is held at a third station where a like portion of the flange is removed from the opposite side to establish the wanted, diametrically opposed portions.
Abstract: An indexing and transporting mechanism having a plurality of work-holding spindles spaced around a carousel, the carousel being journaled on a machine frame provided with work-performing stations and being indexable to carry the spindles sequentially from station to station, the work-holding spindles being arranged to be indexed through one complete revolution at some stations and not at others by a work-holding spindle orienting and indexing mechanism which consists of a track carried by the machine frame concentric with the carousel journals, projections extending from the work-holding spindles which engage the track to prevent rotation of the work-holding spindles relative to the carousel over part of a revolution of the carousel, the track being interrupted at the stations where indexing occurs, each interrupted portion of the track being mounted on indexable spindles carried by the machine frame, each interrupted portion of the track being arranged to be indexed through one complete revolution while the
Abstract: A machine tool comprises a spindle stock that can be moved along several axes. A work table can be rotated alternately in opposite directions by an angle of, preferably, 180.degree. about an axis extending perpendicularly to the table surface in such a manner that the halves of the table surface form alternately, at any given time, a processing area located in the working area of the spindle stock and a mounting area located at a distance from the working area. At least one line leads from a stationary part of the machine tool to the work table for transmitting signals and/or supplying energy.In order to simplify the arrangement of the line, in particular if a plurality of such lines is provided, the line is connected above the said work table to a point on the said stationary part of the said machine tool and, hanging down loosely between the two parts, on the other hand to a connection box of the said work table.
Abstract: A vertical machining center equipped with a rotary pallet changer, the center comprising a pallet clamp unit provided along the front face of the bed, with the clamp unit holding a pallet in a vertical position, and being capable of rotating around a horizontal axis. A rotary pallet changer provided in front of a front face of a bed of the vertical machining center, a saddle provided on an upper surface of the bed. The being saddle is slidable along the X axis, and a column is provided on a top surface of the saddle, with the column being slidable along the Y axis. A headstock is provided on a front face of the column with the headstock being slidable along the Z axis. A tool magazine and an automatic tool exchange device are arranged alongside the bed with a numerical control unit being provided for numerically controlling the saddle, the column, the headstock, the pallet clamp unit, the rotary pallet changer, the tool magazine and the automatic tool exchange device.
Abstract: A machine tool having an indexable workpiece support and a tool holder which is moveable to enable the machine tool to operate on different parts of a workpiece while the latter is held stationary by the workpiece support, indexing of the workpiece support enabling a part thereof to be turned from a first position in which a workpiece can be mounted on that part, to a second position to present such a workpiece to the tool holder, whereby one workpiece can be loaded on one part of the workpiece support while another workpiece on another part of the workpiece support is being simultaneously machined by the machine tool.
Abstract: A table, movably carried upon a stationary base, is provided with a fixed jaw and a movable jaw for gripping the lateral edges of a door or similar panel-like workpiece. The table is movable in reciprocal directions against adjustably positionable stops to place a longitudinal edge of the door at predetermined locations relative the cutting path of a router. The router is mounted upon a carriage which is horizontally and vertically movably supported upon a frame upstanding from the base.
Abstract: A method and apparatus for milling drill points in screw blanks. Form relieved milling cutters are rotated at unusually high speeds to produce high performance screws at improved rates of production. The cutters can be adjusted in a simple manner to achieve variations in drill point geometry, and the speed of the cutters can be controlled to carefully maintain the quality of the products and maximize the life of the cutters.
Abstract: A table (1) revolving intermittently and carrying on its periphery piece-holder grips, has central openings (11), which make possible the discharge of working shavings and wastes at the center of the table itself (arrow 12) and not at the periphery (arrows 7, 7') as now is done. This makes possible direct discharge of the working shavings and wastes in the collection container underneath and avoids clogging and stopping of the machine for cleaning which requires the presence of additional labor and limits production. Nozzles (13, 13') direct fluid radially inwardly to assist in this central discharge of shavings and wastes.
Abstract: The invention relates to apparatus for the transverse and/or longitudinal machining of wooden workpieces, comprising a workpiece carriage for mounting a workpiece or a plurality of workpieces thereon and adapted to be displaced in the direction of the X-axis of a spatial X-Y-Z coordinate system along at least one transverse machining tool itself adapted to be displaced in the Y- and/or Z-axis for the machining operation. The object of the invention is to provide an apparatus of the above indicated type, which is of simple construction and by means of which the transverse machining of a workpiece can be carried out in a single mounting position of the workpiece and at a single machine location. In order to attain this object, the invention provides that the workpiece carriage comprises a mounting table adapted to be tilted about an axis parallel to the X-axis.
Abstract: A machine tool apparatus having a bifurcated column structure comprising spaced apart columns which enclose and slidably secure the mounting end of an arm, the opposite end of which receives a rotating spindle adapted to engage and rotate a variety of machining tools. The bifurcated column structure has three primary ways having their guiding surfaces arranged generally in one plane, and the third having its guiding surface in a plane orthogonally related to the plane of the first ways. The column structure also includes three secondary ways positioned in opposed relation to the respective primary ways. Antifriction bearings are connected to the mounting end of the arm in opposed relation to the three primary and three secondary ways and serve to guide the arm for vertical movement within the column structure.
Abstract: A multi-station grinding machine has a worktable mounted on a machine bed to rotate about a principal axis. The worktable has a plurality of workpiece holding devices at equal angular intervals around the axis and uniformly spaced therefrom, each holding devices defining parallel to said principal axis a support axis for a workpiece to be held therein. A loading/unloading station and three work stations are positioned around the principal axes each work station including a grinding wheel. Table index device effects angular indexing of the table about said principal axis through a series of registered positions to bring the workpieces into precise register with the work stations in succession. Workpiece index device at each work station is selectively coupled to effect predetermined incremental indexing rotation of a workpiece to present preselected portions of the workpiece for engagement by the associated grinding wheel.
Abstract: A handle-cutting device comprises a conveyor in the form of a horizontal table arranged to be rotated step-by-step to bring handle holders in turn to a handle-cutting station where the handle is lightly clamped. While the holder is stationary at the handle-cutting station, a rapidly rotating cutter (for example, rotating at 3,000 r.p.m.) having a contoured blade representing the profile of the wall of a cup bowl to which the handle is to be attached is progressively advanced towards the holder to remove surplus clay in thin slices from the handle. The blade is unconfined along those parts of its length which effect the cutting, being mounted on spaced apart supporting portions of a carrier, so that the small pieces of clay sliced away by the blade can escape from the cutter. The device ensures a high degree of conformity of the attaching surface of the handle to its intended configuration.
Abstract: Disclosed is an apparatus for permitting automatic and manual machining of critical wear surfaces of railroad truck side frames. A fixture is rotatably mounted on a base. The railroad truck side frame is mounted on the fixture with the fixture and side frame in a first or vertical position. The side frame is first leveled vertically on the fixture with respect to leveling plates and then aligned horizontally before it is rigidly clamped to the fixture. Pivotably mounted gauges are then used to determine the exact location of the pedestal roof areas of the side frame with respect to the fixture, and this positional information from the gauges is manually transferred to adjustable stop dogs that engage limit switches that control the movement of a machining head. The fixture is then rotated 90.degree. and locked in that position.
September 25, 1978
Date of Patent:
February 26, 1980
Trailer Train Company
Richard P. Yeates, Boris S. Terlecky, Jagdish K. Shah