序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 METHOD AND TOOL FOR MANUFACTURING FACE GEARS US13382171 2010-08-03 US20120099939A1 2012-04-26 Hermann J. Stadtfeld
A cutter disk having cutting blades oriented on its circumference with the cutting edges of the blades oriented perpendicular to the axis of rotation of the cutter disk thereby representing a plane which can be oriented to a work piece (e.g. face gear) under an angle equal to the pressure angle of the mating face gear set's pinion, and, which can be rotated around a virtual pinion axis to generate a tooth flank on the work piece.
122 METHOD FOR THE GRINDING OF A PROFILE OF A WORKPIECE US13011360 2011-01-21 US20110183585A1 2011-07-28 Friedrich WOELFEL
The invention relates to a method for the grinding of a profile (1) of a workpiece (2) with a gear or profile grinding machine (3), wherein the profile (1) which has to be ground is successively at first ground during a roughing operation with a roughing grinding tool (4) and is afterwards ground during a finishing operation with a finishing grinding tool (5), wherein a stock of the profile (1) which has to be removed is ground by the roughing and the finishing operation, wherein the roughing grinding tool (4) and the finishing grinding tool (5) are arranged coaxially on a common tool spindle (6) or on two separate tool spindles and wherein a translational movement is created between the grinding tools (4, 5) and the workpiece (2) in a direction of a first axis (x) for carrying out a grinding stroke. To improve the cost effectiveness and the quality of the grinding process the invention is characterized in that the at least one tool spindle (6) or the workpiece (2) is swiveled around an axis (A) of rotation which is directed in the direction of the first axis (x) by a predetermined angle (α) during the execution of the roughing operation or the finishing operation from a basic position (I) into a swivel position (II) in such a way that the grinding tool (5) which is not in operation can be passed over the profile (1) to be machined without collision.
123 Apparatus for Manufacturing a Face Gear US11575293 2005-02-03 US20080268750A1 2008-10-30 David J. Fisher; Adrian Russell; George Folprecht; Garth A. Wheldon
A precision grinding apparatus for grinding face gears having a gear table portion controllably driven for rotation about a central axis, and also being movable in a vertical plane along an axis in a controlled manner. The apparatus further includes a case hardened face mounted on the gear table portion. A grinding wheel mounted on the apparatus has controlled driven rotation about a central axis C, and is provided with a grinding surface of predetermined shape. The grinding wheel is movable in a controlled manner toward and away from the gear along a feed axis V, the grinding wheel being movable in a controlled manner in a tangential direction with respect to the gear and orthogonal to the feed axis along a tangential feed axis wherein the motion of the grinding wheel in the C, V and TF axes, and movement of the gear in B and W axes, is controlled by a central control means.
124 METHODS AND APPARATUS FOR MACHINING A COUPLING US11926944 2007-10-29 US20080051013A1 2008-02-28 Greg Burgess
A method facilitates fabricating a coupling including a first annular coupling member and a second annular coupling member. The method comprises coupling the first coupling member to a machine assembly that includes a plurality of grinding wheels coupled to a tool storage member, machining a plurality of troughs in the first coupling member using at least one of the plurality of grinding wheels, such that at least one projection is defined between adjacent troughs, coupling the second coupling member to the machine assembly, and machining a plurality of troughs in the second coupling member using at least one of the plurality of grinding wheels, such that the second coupling member is configured to rotatably couple to the first coupling member.
125 Machining the teeth of double sided face gears US09985547 2001-11-05 US06739943B2 2004-05-25 Walter Wirz
On account of the constructional form of the tool head (17) according to the invention, the opposite sides (18, 19) of a tool (13) attached to the tool spindle (14) of a numerically controlled continuously generating gear grinding or hobbing machine are capable of machining the upper and lower sets of teeth (2, 3) of a double-sided face-gear (1) in one and the same set-up and without disturbing the synchronization between the rotations of the grinding worm and workpiece maintained during the grinding of the first set of teeth, without risk of collision. This eliminates the need to reset the workpiece (1) between the machining of the two sets of teeth (2, 3), thereby shortening the overall machining time substantially, and allowing the avoidance of accuracy losses due to the resetting of the workpiece (1).
126 Apparatus and methods for producing a curved tooth US10245774 2002-09-17 US20030086769A1 2003-05-08 Gregory A. Hyatt
Methods and apparatus are provided for producing a curved tooth. Apparatus are adapted to perform a method that includes the steps of providing a workpiece, providing a tool, and providing relative movement between the tool and the workpiece such that the tool moves along a first curved path relative to the workpiece to define a first curved surface of a tooth in the workpiece. The relative movement can be accomplished by substantially simultaneous translation of at least one of the tool and the workpiece along a first linear axis and a second linear axis that is perpendicular to the first linear axis. Methods are also disclosed for compensating for deviations in a tool path.
127 Machining the teeth of double sided face gears US09985547 2001-11-05 US20020077030A1 2002-06-20 Walter Wirz
On account of the constructional form of the tool head (17) according to the invention, the opposite sides (18, 19) of a tool (13) attached to the tool spindle (14) of a numerically controlled continuously generating gear grinding or hobbing machine are capable of machining the upper and lower sets of teeth (2, 3) of a double-sided face-gear (1) in one and the same set-up and without disturbing the synchronization between the rotations of the grinding worm and workpiece maintained during the grinding of the first set of teeth, without risk of collision. This eliminates the need to reset the workpiece (1) between the machining of the two sets of teeth (2, 3), thereby shortening the overall machining time substantially, and allowing the avoidance of accuracy losses due to the resetting of the workpiece (1).
128 Apparatus and method for precision grinding face gear US844469 1997-04-18 US6146253A 2000-11-14 Faydor L. Litvin; Yih-Jen Chen; Gregory F. Heath; Vijay J. Sheth; Ningxin Chen
A precision grinding apparatus includes a grinding worm for precision grinding a case-hardened face gear. A shaper is first placed into contact with a face gear, to thereby shape a surface of the face gear into a plurality of face gear teeth. The shaper is then removed, and the face gear is case hardened. The grinding worm is disposed in a normal orientation to the case-hardened face gear and includes a spiral tooth extending along a perimeter of the grinding worm. The spiral tooth of the grinding worm is adapted to contact and precision grind the case-hardened gear. A dressing tool includes a protrusion for contacting the spiral tooth of the grinding worm, as the spiral tooth contacts and precision grinds the case-hardened face gear. The dressing tool thus maintains the shape of the grinding worm to within a desired tolerance range.
129 Face gearing with conical involute pinion US54484 1998-04-03 US5941124A 1999-08-24 Jie Tan
The present invention is directed to a unique gear set including a conical involute pinion and a mating face gear. The mating face gear has an axis whose location and orientation is usually configured, as intersecting with or slightly offset from the pinion axis. The pinion teeth are formed as involute helicoids generated from a base cylinder. The mating face gear teeth are defined by the shape of the mating conical pinion teeth surface at that time when the two mating gears are specifically positioned so as to perform synchronous rotations about their respective axes of rotation. This arrangement allows the gears to mesh and transmit high torque at high speeds through an angle as required in helicopter transmissions and the like.
130 Apparatus and method for precision grinding of face gears US680932 1996-07-16 US5823857A 1998-10-20 Jie Tan
A precision grinding apparatus includes a grinding worm for precision grinding a case-hardened face gear. A shaper is first placed into contact with a face gear, to thereby shape a surface of the face gear into a plurality of face gear teeth. The shaper is then removed, and the face gear is case hardened. The grinding worm is disposed in a normal orientation to the case-hardened face gear and includes a spiral tooth extending along a perimeter of the grinding worm. The spiral tooth of the grinding worm is adapted to contact and precision grind the case-hardened gear. A dressing tool includes a protrusion for contacting the spiral tooth of the grinding worm, as the spiral tooth contacts and precision grinds the case-hardened face gear. The dressing tool thus maintains the shape of the grinding worm to within a desired tolerance range.
131 Method of producing a crown wheel US454367 1995-06-06 US5791840A 1998-08-11 Anne Lourens Sijtstra
Method of producing a conical or cup-shaped crown wheel which can mesh with a cylindrical pinion with the inclusion of an angle .alpha.. The crown wheel is produced by means of a generating process. The tool (1, 43) consists of a disc (3) which has machining elements (53) disposed on its circumference whose cutting edges lie in the surface of a profile which extends in the form of helical ribs (4) at a pitch angle .gamma. around the circumference of the disc (3), said profile in each cross-sectional plane perpendicular to the helical direction of the ribs (4) being the shape of a number of adjacent cuttting teeth (53), based on the basic geometry of a cylindrical pinion which is characteristic of the crown wheel and the center point of which lies on a circle which is in a plane perpendicular to the rotation shaft of the tool, and has a center point lying on the rotation shaft of the tool. During the generating process the tool (1, 43) is positioned in such a way that the center point (5, 47) of the cutting teeth (53) which are in engagement with the workpiece (20, 38) lies essentially in the plane which is formed by the axis of rotation (22, 39) of the workpiece and the center point of the tool (1, 43) lying on the rotation shaft (2, 46) of the tool and said center point (5, 47) is moved in a straight line which intersects or crosses the axis of rotation (22, 39) of the workpiece (20, 38) with the inclusion of the angle .alpha..
132 Tool for producing a crown wheel which can mesh with a pinion with oblique teeth, and method of producing such a crown wheel US537823 1995-11-08 US5720584A 1998-02-24 Anne Lourens Sijtstra
In the production of a crown wheel which can mesh with a cylindrical pinion if the axes of rotation of the crown wheel and the pinion are not parallel, the workpiece from which the crown wheel is produced and a generating tool rotate at a ratio in the speed of rotation which corresponds to the proportion of the number of passes of the tool and the number of teeth of the crown wheel to be produced, and the tool is brought into engagement with the workpiece and is moved in such a way along the workpiece in a direction parallel to the axis of rotation of the cylindrical pinion that the tool works the tooth flanks of the crown wheel to be produced. When the center point of the tool is moved in a direction parallel to the axis of rotation of the cylindrical pinion which can mesh with the workpiece, and the teeth of which form an angle .beta. with the axis of rotation of the cylindrical pinion, the workpiece acquires an additional rotation which is proportional to the product of this movement and the tangent of the tooth angle .beta. of the cylindrical pinion. During this movement the angle between the axis of rotation of the tool and the plane through the axis of rotation of the cylindrical pinion parallel to the axis of rotation of the workpiece is constant.
133 Method and apparatus for machining scroll wraps US719810 1991-06-24 US5103558A 1992-04-14 Todd W. Herrick; Robert A. Hawkes; Estil D. Childress; Donald W. Garnett
A method and apparatus for machining a matched set of fixed and orbiting scroll members for use in a scroll compressor. The respective wrap surfaces of the scroll members are simultaneously machined by respective rotating cutting tools. Specifically, rotational and linear movement of the fixed and orbiting scroll members together, synchronized with linear movement of the cutting tools, causes the simultaneous machining of the scroll members along respective wrap surfaces that form a radially inwardly moving sealing line of contact therebetween during compressor operation. Accordingly, any systemic or random deviation from a true involute form during machining of the matching of the matched scroll member set results in complementary deviations in the respective wrap surfaces, whereby a sealed relationship between the wrap surfaces is maintained at such point of deviation during compressor operation.
134 Differential speed reduction apparatus and double-toothed gear for use therein US318250 1989-03-03 US4966573A 1990-10-30 Takao Yokoi
The production of differential speed reduction apparatus, which uses a double-toothed gear including face cams having tooth profiles uniquely generated to secure efficient speed reduction. The speed reduction apparatus includes an input shaft carrying the double-toothed gear, a slant shaft wobbling in association with the rotation of the input shaft, a stationary face gear engageable with the face cams, a movable face gear secured to an output shaft, wherein the stationary face gear and the movable face gear have a roller-like or a convex-face contour.
135 Process for making, finishing crown wheels US314543 1989-02-23 US4954028A 1990-09-04 Jan M. Seroo; Martinus H. Cuypers; Anthonius J. H. M. Oude Maatman
A process for the making and/or finishing of a crown wheel using a metal-cutting tool, the crown wheel being intended for meshing with a predetermined cylindrical gear. The metal-cutting tool is a rotary disc-type element whose working transverse section lying in the plane of the axis of rotation corresponds essentially to the tooth profile of the cylindrical gear. The disc-type element is placed in such a way relative to the crown wheel to be made that the tooth profile of the element coincides with the tooth profile of the cylindrical gear when it is engaged with the crown wheel. The disc-type element is put into a to and fro linear motion perpendicular to its axis of rotation and is at the same time tilted about an axis which coincides with the axis of rotation of the cylindrical gear when it is engaged with the crown wheel. The tooth profile of the element meshes with the crown wheel to be made and finishes the tooth flanks according to the generating principle.
136 Axial gear train having syncline face cycloid gearing US706298 1985-02-27 US4702126A 1987-10-27 Takeichi Nakamura
An axial gear train having syncline face cycloid gearing which includes an opposed, spaced apart first pair of face gears each of which is rotatably carried on respective shafts having a common axis, an inclined shaft fixed to the end of one of the two shafts, the inclined shaft having an axis passing at a point between the two face gears, and inclined at a given angle to the common axis, a face cycloid gear rotatably supported on the inclined shaft and a second pair of face gears, wherein the mating first and second face gears have a different number of teeth and the same modules, and wherein at least one of the mating face gears having the converged point of the tooth shapes of the tooth faces thereof displaced from the pitch cone vertex thereof along the generator of the pitch cone with the amount of displacement being equal to that of the displacement between the pitch cone vertices of the mating face gears to thereby ensure that the mutual teeth thereof are in accord with the tooth trace along their full length.
137 Method of and apparatus for processing a scroll member for a scroll type compressor US503562 1983-06-13 US4615091A 1986-10-07 Toshikazu Niwa; Mineo Takahashi; Kazumi Aiba
A method of processing a scroll member having a spiral wrap and an end plate which is conducted by effecting a shaving on at least one side surface of the spiral wrap by a tool while applying to the tool both of an axial small force and an ultrasonic oscillation simultaneously. An apparatus is proposed which comprises a shaving tool having a spiral groove of the same configuration as the spiral wrap, and a cutting edge portion formed on at least one side edge of the groove over the entire length of the side edge. A tool supporting device supports the shaving tool, and a blank supporting device supports a scroll blank such that the scroll blank opposes to the shaving tool. A device is connected to the tool supporting means and is adapted to impart to the tool a pressing force necessary for effecting the shaving, and an ultrasonic oscillation generating device is adapted to impart an ultrasonic oscillation to one of the tool or the blank.
138 Scroll manufacturing tool US380141 1982-05-20 US4433564A 1984-02-28 Eiji Fukushima; Seiichi Fukuhara; Masaharu Hiraga
A manufacturing tool for finishing a preformed scroll for use in a scroll type fluid displacement apparatus is disclosed. The tool includes a working member having an end plate and a first involute element extending from one end surface of said end plate. The end plate has a plurality of arc shaped holes along the outer side wall of the first involute element. A second involute element is rotatably coupled to the working member and interfits with the first involute element in a disposition to define a radial gap between the first and second involute elements. A plurality of pins project axially from an axial end of the second involute element and penetrate through the arc shaped holes. A rotatable member has a plurality of holes extending in the axial direction. The pins have axial end portions which extend into the holes in the rotatable member to couple the rotatable member to the second involute member and to transmit the rotation of the rotatable member to the second involute element so that the relative rotation between the first and second involute elements adjusts the gap between them.
139 Clutch teeth US722481 1976-09-13 US4060007A 1977-11-29 George N. Levesque
This invention relates to a clutch tooth design which provides increased load carrying ability by having substantial face to face contact of the teeth during a partial engagement of the clutch teeth. The teeth of the clutch are machined to a profile form which is of exponential shape. Mating contact areas lie in a mid-pitch plane perpendicular to the axis of rotation of the clutch. The mutual tangent between two contacting teeth lies in a truly helicoid surface. The essential line contacts resulting from machining are converted by a coining process to areas large enough to carry the service loads. As a result the tooth form developed actually improves with continued use.
140 Clutch-pinion for timepieces and the method of making such clutch-pinions, including a milling cutter used in the method US3760642D 1972-04-25 US3760642A 1973-09-25 STAMM H
Clutch-pinions for timepieces, which are generally cylindrical and include crown toothing in an annular crown on one end, are made in a process including hobbing the crown toothing in an unfinished clutch-pinion blank using a milling-cutter which has one or more revolutions of helical cutting teeth, and rotating the milling cutter about an axis which is substantially perpendicular to the axis of the unfinished blank, thereby providing the clutch-pinion with crown teeth whose profiles match the profile of the spacing between the milling-cutter teeth.
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