Abstract: Gear processing machine (4), such as a gear cutting or grinding machine, wherein a chamfering and/or deburring apparatus (2) and auxiliary spindle (10) are included on the same machine. A transfer mechanism (8) loads, unloads and transfers workpieces between a machining spindle (6) and the auxiliary spindle (10) thereby enabling simultaneous cutting and chamfering and/or deburring processes to be carried out. Via the auxiliary spindle, completed workpieces may be removed from the machine and blank workpieces may be loaded into the machine while another gear is being processed on the machine spindle thereby enhancing machine output and creating a more efficient operation.

Abstract: The present invention relates to a machine tool and a corresponding process for machining a workpiece by means of one or more tools controlled by means of control data, the machine tool comprising at least 5 simultaneously controllable axes. A control device being suited to control the tool supported in a support means by means of the control data along a tool path to remove material from the workpiece clamped in a clamping means. The machine tool being suited to machine a first workpiece to provide the first workpiece with a first gearing, the first workpiece being a counter piece to a second workpiece having a second gearing.

Abstract: The present invention aims to provide a working device for deburring or chamfering easily, for example on the both sides of a gear, and for desired deburring or chamfering effectively on a large-sized gear, and comprises a base stage, a workpiece hold and rotate device mounted thereon for holding and rotating a workpiece, a working device mounted on the base stage and movable to and from the workpiece and having a working tool for working against obverse and reverse sides of the workpiece, a pressing device for pressing the working device toward the workpiece, and a tracing device on the working means, composed of a workpiece obverse side tracing member corresponding to the obverse side of workpiece, and a workpiece reverse side tracing member corresponding to the reverse side of workpiece, for moving the working device in forward and rearward directions by becoming in contact with and tracing shape of the workpiece.

Abstract: Provided is a method for machining a tooth plane that is formed on a circumferential surface of a cylindrical toothed member and that extends along a center axis of the toothed member. The method includes: cutting the tooth plane by a peripheral cutting edge of an end mill while keeping a rotation axis of the end mill at a predetermined steady orientation and moving the end mill parallel to the center axis of the toothed member; rotating the toothed member by a predetermined angle around the center axis of the toothed member; and cutting the tooth plane by the peripheral cutting edge of the end mill while keeping the rotation axis of the end mill at the steady orientation and moving the end mill parallel to the center axis of the toothed member.

Abstract: A system and method for forming a feature on an inner surface of a gear includes a sensor for sensing the position of a feature on the gear, a cutting station having a cutting tool for forming the feature on the inner surface of the gear, and a controller. The controller is operable to determine an amount of rotation necessary to rotate either the gear or the cutting tool such that the feature on the inner surface of the gear is formed at a desired orientation relative to the feature on the outer surface of the gear.

Abstract: The present disclosure relates to a method of measuring and inspecting a workpiece belonging to a gear pair, wherein the method is carried out on a gear cutting machine producing the workpiece, wherein a mating test piece mounted at the working head, in particular at the cutting head, is moved in the direction of the workpiece clamped in the workpiece mount of the machine table until the gear pair is in engagement and the corresponding working axial spacing is reached, the workpiece is driven via the drive movement of the mating test piece of the gear pair, the rotational position of the workpiece to be measured is recorded and the detected actual position is compared with a reference position and at least one value characterizing the rolling gear deviation of the workpiece is calculated while taking account of the comparison made.

Abstract: A working apparatus, provided with a base stage, work hold and rotation device for holding and rotating a work, working device movable toward and away from the work via slider mechanism and having a working tool, press structure for pressing the working tool toward the work via the working device, and trace device pressed toward the work together with the working tool by the press structure and in contact with the work and moving the working device as a whole in forward and rearward directions according to outer shape of the work. By pressing of the pressing structure, the working tool deburrs and chamfers under control of working volume by the trace device. The work hold and rotation device has work rotation axis angle adjustment mechanism, for adjusting angle of rotation axis of the work by holding the work. The working apparatus can precisely deburr and chamfer complicated shape of work such as worm gear.

Abstract: A machine tool for processing tooth formations of workpieces, includes a rotary holder which can be rotated about a main axis A, two workpiece spindles which are arranged on the rotary holder, with the workpiece spindles having spindle axes (Sa, Sb) which are orientated parallel with the main axis A, in particular with the workpiece spindles being arranged symmetrically about the main axis A, and a tool holder for a tool for processing a workpiece on one of the workpiece spindles, is characterized in that the main axis A of the rotary holder extends horizontally. With this machine tool, contamination of the rotary holder and tool spindles by removed chips can be reduced and the structural complexity for a relative feed movement of the tool with respect to the workpiece parallel with the spindle axes can be reduced.

Abstract: The present invention relates to a machine tool and a corresponding process for machining a workpiece by means of one or more tools controlled by means of control data, the machine tool comprising at least 5 simultaneously controllable axes. A control device being suited to control the tool supported in a support means by means of the control data along a tool path to remove material from the workpiece clamped in a clamping means. The machine tool being suited to machine a first workpiece to provide the first workpiece with a first gearing, the first workpiece being a counter piece to a second workpiece having a second gearing.

Abstract: This method includes: a supporting process of supporting a worm wheel in a first supporting section of a supporting body; an engaging process of engaging a jig gear which corresponds to a worm with the worm wheel; a measuring process of measuring a distance between the centers of the worm wheel and the jig gear; a gear processing process of processing the worm based on the measured distance between the centers; and a supporting process of supporting the worm in a second supporting section of the supporting body after releasing the engagement between the worm wheel and the jig gear.

Abstract: A machine for processing gears, such as by testing and lapping, which can accommodate a wide range of gear pair shaft angles (less than, equal to, and greater than ninety degrees) while providing improved machine stiffness and an enhanced arrangement of machine elements.

Abstract: An internal gear shaving machine 1 which brings a shaving cutter 3 and an internal gear held by a workpiece chuck 2 into engagement with a crossed axes angle, and subjects the tooth flanks of the internal gear to final machining while it rotationally drives at least one of the shaving cutter 3 and the workpiece chuck 2. The workpiece chuck 2 and shaving cutter 3 are supported movably toward and away from each other in a vertical direction with the workpiece chuck 2 higher and supported movably in the horizontal direction relative to each other. The workpiece chuck 3 is constituted to hold the outer circumferential surface of the internal gear with the axis of rotation of the internal gear oriented in a up-down direction so that shavings produced during processing by the shaving cutter can fall downwardly from the internal gear.

Abstract: In the single-indexing method, the blades are positioned in a circle on a cutter head, so that all of the blades run through a tooth space to be produced during cutting of a bevel gear. The workpiece is then rotated by one pitch and the continuously rotating cutter head may then cut the next tooth space. Since the blades do not all have their intended shapes and positions, different structures arise on the tooth flanks, which lead to deviations in the pitch measurement. In order to avoid this, a face-milling method is suggested in which the cutter head gets the same angular position around its axis in relation to the tooth space to be produced as for the preceding space. This has the result that all tooth spaces are not more precise overall, but their surface structures are identical and the pitch measurement is thus not falsified.

Abstract: A method for manufacturing a bevel gear member, comprises the steps of providing a bevel gear blank having a gearhead, forming gear teeth on the gearhead of the bevel gear blank by simultaneously cutting gear tooth top land, gear tooth side profile and a bottom land to form an unfinished bevel gear member using a face hobbing process, and machining at least one selected surface of the unfinished bevel gear member using the top lands of said gear teeth as a datum for centering the unfinished bevel gear member, thus forming a finished product. The method is applicable for manufacturing the bevel gear member both with shaft axially extending from the gearhead and without the shaft. The bevel gear members manufactured with this method exhibit reduced runout and require simpler, less expensive tooling.

Abstract: A method is provided for manufacturing a compound helically toothed planet gear for a planetary gear set wherein the individual gear elements of the compound planet gear have different leads. The method identifies and utilizes the several factors affecting gear timing for compound helical planet gears having different leads to provide planet gears capable of attaining equal load share among the several gears of the planetary gear set. Specifically, the method of the present invention utilizes a mounting shoulder and bore axis to provide common locating features for use throughout the manufacturing process The method further provides for bore honing and removal of equal amounts of material from both sides of each gear tooth in the gear finishing process so as not to alter gear timing between the compound gear elements.

Abstract: A mechanical gear hob is equipped with an automatic stock divide device that enables the hob to cut or re-cut gear parts that already have teeth in them by automatically synchronizing the gear teeth to the hob cutter. The hob is equipped with a hob shift position sensor and a hob cutter rotary position sensor to input to a controller the lateral and rotary positions of the hob cutter. A stock divide sensor is mounted adjacent the worktable to determine the location of the gear teeth previously formed in the workpiece. A servomotor is mounted to the differential input shaft in the hob drive train and has a rotary position feedback to the controller as well. Stock divide is accomplished by an input to the differential, causing the workpiece to rotate relative to the hob cutter to bring the existing teeth on the workpiece into phase with the teeth of the hob cutter.

Abstract: Centering device acting upon an already present first ring (14a) of a straight or double helical toothing of gears, sprocket wheels or pulleys to obtain the second ring (14b) of the toothing generated by a pinion shaped cutter (16), a central groove (19) separating said first ring and said second ring. The centering device comprising a retractable pin (20, 120), cooperating during the positioning step of the gear (13), with at least a tooth (15) of the first ring (14a), having a first waiting position (20a, 120a) and a second operating position (20b, 120b) defining the angular position of the gear (13) clamped on the rotary supporting base (18), the angular position being functionally correlated to the plane which contains the axis (25) of the gear (11) and the axis (26) of the cutter (16).

Abstract: An arrangement performs a contact pattern test of bevel gears when they are produced. The arrangement includes a testing unit in connection with a machining apparatus, to which testing unit a finished bevel gear can be fastened to rotate around its axis so that the finished bevel gear and the other bevel gear which is being finished can be arranged into a rotating contact with each other so as to allow the contact pattern of the cogs to be checked.

Abstract: An apparatus (40) for applying marking compound to the tooth surfaces of a gear or pinion member (14). The apparatus comprises a brush (42) having a central shaft (82) and a plurality of bristles (44) emanating from the shaft (82) with the brush (42) being rotatable about an axis of rotation coincident with the shaft (82). The apparatus also includes a cover plate (49) and a marking compound manifold (48) adjacent to the brush (42) comprising an inlet (92) in a first side of the manifold (48), an inner distribution chamber (94) communicating with the inlet (92), and a plurality of outlets (96) in a second side of the manifold (48) communicating with the inner chamber (94), the outlets (96) facing the bristles (44) of the brush (42). The apparatus (40) further includes means (52, 54) to move the brush (42) and manifold (48) from a first position remote from the gear or pinion (14) to a second position wherein the bristles (44) engage the tooth surfaces of the gear or pinion (14).

Abstract: Disclosed is a method for machining a component using a CNC or an NC machine. The method includes the steps of mounting the component at a location on the machine and providing a pair of datum points, e.g., "locating holes" or dowels, on the component. A first base line is defined to extend through the datum points and a second base line is defined to intersect the first base line at an intersection. While retaining the component at its mounting location, such component is machined using dimensions measured from the base line intersection. The new method avoids the inaccuracies, e.g., tolerances and tolerance "buildup," that often results from the use of jigs, fixtures and the like. In other words, the component itself becomes the reference for machining. The method is particularly useful in making parts such as detachable, unevenly-wearing gear segments which can be turned end-for-end for greatly improved service life.

Abstract: An apparatus for positioning a gear blank on a workpiece spindle of a gear generating machine. An indicating element orientates cutter blades of a milling cutter of a gear generating machine relative to a gear blank and rough cut teeth of the gear blank.

Abstract: The profile measurement control comprises a potentiometer adjustable by means of a lever. The voltage tapped-off the potentiometer is attenuated via a resistance network proportional to the radius of the base circle disc and additionally via an encoding switch and a voltage attenuating circuit when a certain pre-selected diagram length transmission or translation is exceeded. Thus a voltage is always supplied to the drive motor driving a generating carriage or slide which ensures for an optimum paper feed rate when the lever is located to engage a stop. Hence, the lever can be always adjusted to engage the stop without the preselected diagram length translation or the radius of the selected base circle disc having to be taken into account. Consequently, the measuring rate during series testing of gear profiles can be considerably increased.

Abstract: A gear manufacturing machine which includes an endless chain for carrying a series of stock removing tools is provided with a versatile drive train system which can be adjusted for different methods of gear manufacture. The drive train system includes coupling components which can be engaged and disengaged for connecting or disconnecting certain portions of the drive train from parts of the machine. With this arrangement, a single machine can be utilized for carrying out roll generating or hobbing operations with one or more workpieces.