| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 409010000 | Gear tooth shape generating | 73 |
| 20080213055 | Universal Machine for the Soft Machining of Bevel Gears and Corresponding Method - The invention relates to a device for use in production of bevel gears. The device comprises a turning machine ( | 09-04-2008 |
| 20090035086 | Method of Operating a Gearwheel Machining Tool - In a method of operating a gearwheel machining tool having a machining wheel situated on a drive axis, for reworking a gearwheel, a fixed axial distance between both wheels is set. In this manner, the engagement of the gearwheel in the teeth of the machining wheel may be performed without damage in a technically simple way, which is achieved in that the gearwheel to be machined is placed on the arbor in an arbitrary rotational angle position, tooth areas of its lateral external faces facing toward the machining wheel coming to rest on lateral tooth areas of the machining wheel, upon which the machining wheel is set into rotation and the gearwheel to be machined slides axially on the arbor into its machining position. After which the tooth gaps of the two overlapping areas of the wheels are rotated one over the other and the wheels are mutually engaged. | 02-05-2009 |
| 20110250029 | METHOD FOR MACHINING THE FLANKS OF SUBSTANTIALLY CYLINDRICAL GEARING HAVING MODIFIED CROWNING, IN A DIAGONAL ROLLING METHOD - The invention concerns a method of machining the tooth flanks of substantially cylindrical, but crowning-modified gears through a diagonal generating process employing a worm-shaped tool which is modified with a crowning in the direction of its rotary axis, wherein the crowning can be positive or negative (concave crowning), wherein by matching the crowning of the tool to the diagonal ratio, a flank twist is generated by means of the tool and superimposed on the natural flank twist, such that the result of said superposition equals the flank twist required for the work piece. | 10-13-2011 |
| 20110268522 | INTERNAL GEAR GRINDING MACHINE - An object is to provide an internal gear grinding machine which makes it possible to achieve space savings and reduce the size of a machine, as well as to prevent the tools from being damaged even when an abnormal situation such as a blackout occurs, by simplifying dressing operation. To achieve the object, an internal gear grinding machine for use in grinding a workpiece (W) by synchronously rotating the workpiece (W) and a barrel-shaped threaded grinding wheel ( | 11-03-2011 |
| 20120189395 | WORKING MACHINE FOR MAKING GEARS - A machine for making gears. The machine comprises a piece-holder unit and an operating unit equipped with an operating head provided with at least one tool for machining a piece. Moreover, one piece-holder unit and the operating unit are provided with relative motion with respect to each another in a direction. The machine is characterized in that the operating unit is suitable to move, in a direction substantially perpendicular to the direction, and in that the tool is mounted on a slide provided with a tangential motion defined by a direction. | 07-26-2012 |
| 20120230791 | METHOD AND APPARATUS FOR MANUFACTURING BEVEL GEARS - Method and apparatus wherein the front machining of a gear blank ( | 09-13-2012 |
| 409011000 | Hobbing | 18 |
| 20090311063 | TOOL ARRANGEMENT FOR THE PRODUCTION OF HELICAL TEETH IN GEAR WHEELS - Tool arrangement for the production of helical teeth in gear wheels, wherein a roughing hob ( | 12-17-2009 |
| 20160193677 | MAIN SPINDLE MECHANISM | 07-07-2016 |
| 409012000 | Process | 13 |
| 20090142153 | Method and Production Line For Producing Sliding Sleeves - The invention relates to a method and to a production line for carrying out the method for producing internal geared workpieces, particularly sliding sleeves. The invention discloses a method, which is advantageous with regard to production engineering, for producing a sliding sleeve and a production line for carrying out the method. With regard to the method, the invention provides that the teeth of the workpiece are made on the finished tooth contour by hob peeling, and the tooth flanks and/or the tooth faces are subsequently machined with a cutting edge tool, and with regard to the production line, the invention provides a shaping device for making teeth having a crude tooth contour, a hob peeling device, which is located downstream from the shaping device and which serves to finish the finished tooth contours of the teeth, and a tooth flank and/or tooth face machining device located downstream from a hob peeling device. | 06-04-2009 |
| 20090238654 | Deburring by hobbing with integrated secondary deburring without a smoothing tool - The invention relates to a method for tooth-machining of workpieces ( | 09-24-2009 |
| 20100202847 | TOOL FOR MACHINING A WORK PIECE AND METHOD FOR MACHINING A WORK PIECE - The invention relates to a machine tool for machining a work piece having a main spindle unit with a preferably vertical spindle axis, and a machining spindle unit, particularly a hobbing spindle unit that is arranged next to the spindle axis in a direction crosswise to the spindle axis to accommodate a machining tool, with said machining spindle unit being displaceable along a first guiding direction, in particular vertically (z) by means of a first guide and crosswise, preferably perpendicularly (x) or approximately perpendicularly displaceable to the first guiding direction, particularly the vertical, by means of a second guide, can advance to a work piece clamped in the main spindle unit, and can swivel around a swivel axis (B), preferably perpendicularly to the spindle axis (A) of the machining spindle unit, and with the machining tool having an arbitrary number of helically arranged machining elements, in particular a single- or multi threaded generating means, adapted to execute generating teeth manufacturing methods. | 08-12-2010 |
| 20110268523 | HOB PEELING DEVICE AND METHOD - A device for cutting teeth in gear blanks by hob peeling, the device having a workpiece spindle for holding the gear blank, the workpiece spindle being rotationally drivable about a workpiece rotational axis, the device having a tool spindle which carries a peeling wheel having cutting edges and which is rotationally drivable about a tool rotational axis, wherein the tool spindle and the workpiece spindle may be positioned relative to one another at a fixed or variable axis intersection angle, and for the purpose of forward feed and infeed, the tool spindle is movable relative to the workpiece spindle in the radial direction and in the axial direction with reference to the workpiece rotational axis by means of positioning drives, and the device having an electronic control device for controlling the positioning drives and rotationally driving the tool spindle and the workpiece spindle at a specified rotational speed ratio, optionally with a changing phase position. In order to expand the production spectrum, it is proposed that the control device is set up or may be set up in such a way that during cutting of teeth in a coarsely precut or uncut blank, a radial emerging motion out of the gear blank is superimposed on the axial feed at the end of the feed, and/or a radial submerging motion into the gear blank is superimposed on the axial feed at the start of the feed. | 11-03-2011 |
| 20120148360 | DEVICE AND METHOD FOR HOB PEELING INTERNALLY GEARED WHEELS AND RELATED PEELING WHEEL - The invention relates to a device for generating teeth of workpieces ( | 06-14-2012 |
| 20130243540 | METHOD FOR MACHINING A WORKPIECE - In a method for machining a workpiece, an end face gearing is created on the end face of the workpiece by hob peeling. The workpiece is rotated about the Z axis in relation to a coordinate system with X, Y and Z axes arranged perpendicularly to one another. During creation of the end face gearing, the feed direction of the hob peeling tool encloses with the axis of rotation of the hob peeling tool an angle which is greater than 0° and less than 35°. The hob peeling tool is arranged in the X-Z plane at an angle to the X axis which is greater than 0° and less than 20°. | 09-19-2013 |
| 20140234043 | METHOD FOR PROCESSING GEAR AND CUTTER FOR PROCESSING GEAR - A method for processing a gear includes a first cutting process starting the cutting of a work by moving a cutter in a first cutting direction while maintaining a cutting depth of the work at a setting value and reducing the cutting depth of the work before a first cutter portion reaches an end portion of a cutting area in the first cutting direction and a second cutting process synchronously rotating the work and the cutter in a reverse direction of rotational directions of the work and the cutter in the first cutting process, maintaining the cutting depth of the work at the setting value, and cutting the end portion of the cutting area by moving the cutter in a second cutting direction. | 08-21-2014 |
| 20140271010 | METHODS FOR GENERATING GEAR TEETH OF A DOUBLE INVOLUTE PINION-FACE GEAR DRIVE SYSTEM - Methods for generating gear teeth of a double involute-face gear drive system, curved in their longitudinal direction in form of either shortened, normal or an extended involute curve, include methods for generating the teeth of both components. Methods for generating the teeth of a double involute pinion, shaped in form of a normal involute in their profile direction and curved in their longitudinal direction in form of an either shortened, a normal or an extended involute curve, include the use of one of the following tools (1) a face hob and (2) a conical hob. Methods for generating the teeth of a face gear curved in their longitudinal direction in form of an either shortened, a normal or an extended involute curve include the use of one of the following tools (1) a rack cutter, (2) a shaper cutter and (3) a conical hob. | 09-18-2014 |
| 20140369777 | METHOD FOR PRODUCING A TOOTHING - A method for producing a toothing on an in particular round workpiece, wherein the teeth are produced by a shaping method using a tool which moves along a path which is controlled by a lifting cam and in the case of which an exchange movement that runs substantially in the radial direction of the workpiece follows a downward movement which runs in the axial direction of the workpiece and serves to produce the tooth flanks, wherein the exchange movement is superimposed with a downward movement such that a curved path is produced during the exchange, is characterized in that the relative rake angle γ | 12-18-2014 |
| 20160096230 | Generative Gear Machining Method and Apparatus - Gear machining apparatus and methods are configured to produce gaps between gear teeth having portions formed by two different machining processes. A rough cutting process may be used to form a root portion of the gap, while a finish cutting process may be used to form final tooth faces. The apparatus and methods may further be configured to machine one or more gear tooth profile modifications. | 04-07-2016 |
| 20160167146 | GEAR CUTTING MACHINE AND METHOD FOR MACHINING GEAR TEETH | 06-16-2016 |
| 409013000 | Generating tooth for bevel gear | 2 |
| 20100221080 | DEVICE FOR GENERATION MACHINING A WORKPIECE CLAMPED IN A MACHINE TOOL AND A METHOD FOR MANUFACTURING A WORKPIECE HAVING A GEARING - The present invention relates to a device, a method and a machine tool for machining a workpiece clamped in the machine tool, the device comprising a hobbing tool for removing material of the workpiece for shaping a rollable profile, in particular a gearing, on the workpiece by hob milling, and a hobbing tool receiving means for receiving the hobbing tool, the device particularly comprising a milling head fixing means which is suitable to fix the device in a receiving means of the milling head of the machine tool, the machine tool comprising at least 5 axes. | 09-02-2010 |
| 20120321404 | Method for Gear Pre-Cutting of a Plurality of Different Bevel Gears and Use of an According Milling Tool - Soft milling bevel gear teeth on multiple similar bevel gears using a universal hobbing tool with a set of bar cutters comprising a plurality of pairs of inner and outer cutting edges, having four machining phases: 1) simultaneous milling machining a first bevel gear's convex inner and concave outer flanks with the pairs; 2) milling finishing pre-machining either the concave outer flanks with the outer cutting edges the convex inner flanks with the inner cutting edges without employing respective other cutting edges; 3) using the same tool with the same set of cutter bars to pre-tooth a second similar bevel gear, including simultaneous milling machining the gear's convex inner and concave outer flanks; 4) milling finishing pre-machining on the second gear either the concave outer flanks with the outer cutting edges or the convex inner flanks with the inner cutting edges without employing respective other cutting edges. | 12-20-2012 |
| 409015000 | With control means energized in response to activator stimulated by condition sensor | 1 |
| 20120121353 | Machine Tool - A machine tool re-machines a workpiece after positioning drive motors, a hob and the workpiece by stopping the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions. For this purpose, a drive control section recognizes, based on the rotational-speed ratio of the drive motor corresponding to the hob and the hob and/or the rotational-speed ratio of the drive motor corresponding to the workpiece to the workpiece, and detection signals from detection sensors detecting that the rotational positions of the drive motors are at their respective zero positions, detections signals when the rotational positions of the drive motors and the rotational positions of the hob and the workpiece correspond to their respective zero positions, and stops the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions. | 05-17-2012 |
| 409016000 | Plural hobs | 1 |
| 20130164090 | Multi-Spindle Hobbing Machine - The invention relates to a hobbing machine for simultaneously hobbing n workpieces, comprising an n-fold milling head having n milling spindle axes that are parallel to one another, an n-fold tailstock and an n-fold workpiece spindle carrier having n workpiece spindle axes that are parallel to each other in a first horizontal main axis direction. The n-fold workpiece spindle carrier and the n-fold tailstock comprise n workpiece spindle carrier units or tailstock units which can be moved individually in a second horizontal main axis direction perpendicular to the first horizontal main axis direction along horizontal movement axes. | 06-27-2013 |
| 409017000 | Including infeed means | 1 |
| 409018000 | To infeed along axis of work rotation | 1 |
| 409019000 | Infeed of cutter | 1 |
| 409020000 | And infeed radially of axis of work rotation | 1 |
| 20140341669 | MACHINE TOOL FOR PRODUCING TOOTHED SECTIONS ON WORKPIECES - To produce toothed sections on workpieces, a machine tool has a machine bed, a pivoting element with at least two workpiece spindles arranged thereon and a tool positioning unit with a tool head. The spindles can be pivoted relative to the machine bed about a workpiece spindle pivot axis and each spindle has a workpiece receiver that can be rotatably driven about a rotational axis. The tool head can be linearly moved in three directions relative to the spindles, and can be pivoted about a tool head pivot axis. A bearing element extending in the direction of the workpiece spindle pivot axis, has a free end which is pivotable about the workpiece spindle pivot axis, and is rigidly arranged on the pivoting element. The reinforcing element is fastened to the machine bed. The pivoting element is reinforced about the workpiece spindle pivot axis by the reinforcing element. | 11-20-2014 |
| 409025000 | Milling with radial faced tool | 16 |
| 409026000 | Process | 13 |
| 20090097934 | FACE HOB HYPOID GEAR TOOTH CUTTING BY COMMON BLADES - A method includes selecting a first gear ratio and a second gear ratio. A first hypoid gear set defines the first gear ratio and a second hypoid gear set defines the second gear ratio. The first hypoid gear set includes a first ring gear that is formed with at least one first inside blade and at least one first outside blade coupled to a first gear cutter. The second gear set includes a second ring gear that is formed with at least one second inside blade and at least one second outside blade coupled to a second gear cutter. The method also includes identifying parameters of the first inside blade and the second inside blade, commonizing at least a portion of the respective identified parameters and forming at least one of a common inside blade and a common outside blade for forming a first modified ring gear and a second modified ring gear. | 04-16-2009 |
| 20100111628 | Method for Designing and Manufacturing a Gear - A method for designing and manufacturing a gear by means of a computer-controlled machining device comprises the following steps of using a machining device adapted to perform an operation from the group including: milling and spark eroding; using a tool, in particular a milling device or a spark erosion head; using a machining device of the type with at least five simultaneous, independent degrees of freedom; and applying an elongate tool, the form of which corresponds at least to some extent with the intended form of surfaces for modeling by machining. | 05-06-2010 |
| 20110103911 | MANUFACTURING BEVEL GEARS - A method of manufacturing bevel gears with a tool, such as a tapered milling tool ( | 05-05-2011 |
| 20110200405 | PROCESS FOR PRODUCING A DRIVE SHAFT - A method for producing a drive shaft of a food processor, the drive shaft having an end-side, splined-shaft-like toothing that is movable into positively locking engagement with a complementarily formed clutch. The method includes producing the toothing by machining the drive shaft with a cylindrical milling cutter, wherein the cylindrical milling cutter engages with the drive shaft from a radial direction with respect to a longitudinal axis of the drive shaft; and positioning an axis of rotation of the cylindrical milling cutter cross-wise relative to the longitudinal axis of the drive shaft, wherein the axis of rotation of the cylindrical milling cutter is at an incline relative to the longitudinal axis of the drive shaft so that the axis of rotation and the longitudinal axis draw an angle of less than 90°. | 08-18-2011 |
| 20110262238 | Method for Producing Bevel Gears Having Hypocycloidal Teeth in the Continuous Indexing Method Using a Corresponding Face Cutter Head - A face milling cutter method for manufacturing various hypocycloidal bevel gears that is characterized in that the following steps are performed to manufacture a first bevel gear: equipping a universal face milling cutter in a first configuration with a first number of cutter groups that corresponds to a first number of passes. A first bevel gear is then produced in the continuous partial method using the universal face milling cutter in the first configuration. The following steps are performed to manufacture a second bevel gear: equipping the same universal face milling cutter in a second configuration with a second number of cutter groups that corresponds to a second number of passes. The second bevel gear is then produced in the continuous partial method using the universal face milling cutter in the second configuration. | 10-27-2011 |
| 20120003058 | MACHINE TOOL AND METHOD FOR PRODUCING GEARING - The invention concerns a machine-tool, in particular a milling machine Including
| 01-05-2012 |
| 20120027531 | Method and System for Milling a Bevel Gear Tooth System in a Continuous Milling Process - Milling of a bevel gear tooth system in the continuous process, wherein a cutter head comprising a plurality of pairs of inner cutting edges and outer cutting edges is applied to a workpiece, the inner cutting edges are arranged on a smaller fly circle radius than the outer cutting edges and movements for a metal-cutting machining by milling are performed by a gear cutting machine where the bevel work gear and the cutter head run linkedly: performing a first continuous metal-cutting machining by milling using the gear cutting machine according to a first machine setting, wherein convex inner flanks on the bevel work gear are machined by the inner cutting edges; and performing a second continuous metal-cutting machining by milling using a gear cutting machine according to a second machine setting, wherein concave outer flanks on the bevel work gear are machined by the outer cutting edges. | 02-02-2012 |
| 20120177457 | METHOD OF MANUFACTURING GEAR - A method of manufacturing a gear by a skiving process, the skiving process utilizing a cutter including a rotational axis inclined to a rotational axis of a work to be processed into the gear, the skiving process feeding the cutter in a tooth trace direction of a tooth to be formed at the work in a state where the cutter rotates in synchronization with the work, the method includes a surface hardening process for hardening a work surface of the work before the skiving process is performed. | 07-12-2012 |
| 20130101367 | GEAR CUTTING MACHINE, END MILL AND METHOD OF FORM MILLING - The present disclosure relates to a gear cutting machine for gear cutting a workpiece, in particular a toothed wheel, by form milling having at least one cutter head for mounting at least one end mill, wherein the cutter head or the end mill and/or the workpiece mount are adjustable and the end mill axis can be aligned approximately parallel to the machined tooth flank of the clamped workpiece, and wherein the cutter axis can be applied to the flank contour and the end mill has an outer contour corresponding to the flank contour. | 04-25-2013 |
| 20130259591 | Method for Producing Conical or Hypoid Wheels Using the Plunging Process - A method of chip-removal machining a tooth gap of a work piece includes executing a first substantially linear plunging movement of the cutting tool along a first plunge vector and machining a region of the work piece near a tooth head of a first tooth flank of the tooth. A substantially transverse movement of the tool along a transverse vector is then executed to machine a region of the work piece near a tooth head of the second tooth flank of the tooth. A second plunging movement of the cutting tool along a vector path is then executed, to an end point of the second plunging movement that lies at a position of the work piece corresponding to the slot depth of the tooth gap to be fabricated. The cutting tool is rotated about an axis of rotation thereof during execution of these steps. | 10-03-2013 |
| 20130322974 | Tooth Milling Cutter and Method for Milling the Teeth of Toothed Gear Elements - Method for milling a series of teeth of a toothed gear element with teeth in a straight line with a milling cutter rotatable about a milling cutter axis and having at its periphery interchangeable cutting inserts arranged such that, when the milling cutter is brought to the toothed gear element, they reach into gaps between adjacent teeth or generate these gaps, and a corresponding milling cutter. Cutting edges of mounted cutting inserts extend radially and perpendicularly relative to the milling cutter axis. During milling of the tooth profile, the milling cutter axis is aligned in a plane perpendicular to the longitudinal extent of the tooth back and, during entering of the cutting inserts, rotated about the milling cutter axis, into the surface or gaps between the teeth, and pivoted in this plane over an angular range covering all normals to the profile surface of the tooth to be produced. | 12-05-2013 |
| 20140079499 | SMILLED SPLINE APPARATUS AND SMILLING PROCESS FOR MANUFACTURING THE SMILLED SPLINE APPARATUS - By combining shaping and milling actions, or smilling, the cutting tool can move through the entire usable portion of the spline and machine a tool relief into the face of the adjacent feature such as a shoulder before retracting, reversing direction, and repeating the cycle. The smilling apparatus and manufacturing method eliminates the need for an annular spline relief and the full length of spline engagement can be utilized for strength. The effective width of the spline connection apparatus manufactured by the smilling process conserves space and increases the load carrying capability of the spline connection. | 03-20-2014 |
| 20160067804 | MODIFIED TOOTH PROPORTION GEAR CUTTER - An exemplary modified tooth proportion gear cutter includes a gear cutter that has a plurality of cutting teeth, and each one of the cutting teeth has a pair of cutting edges configured to cut a gear in a blank orientation so as to provide the gear in a final orientation. The gear in its final orientation has an involute tooth profile including a plurality of cut teeth and a plurality of valleys therebetween. The cutting edges are configured to cut the gear in the blank orientation, such that the gear in the final orientation includes the involute tooth profile with an active profile section and an operating pitch diameter that is spaced apart from the active profile section. | 03-10-2016 |
| 409027000 | Adapted to cut bevel gear | 3 |
| 20090028655 | DEVICE AND METHOD FOR MACHINING BEVEL GEARS IN THE INDEXING METHOD HAVING COMPLETE INDEXING ERROR COMPENSATION - The invention relates to an apparatus for machining bevel gears in an indexing method and method for machining the pitch of gears, wherein the production-related pitch error is compensated. The apparatus ( | 01-29-2009 |
| 20090060671 | METHOD FOR SOFT MACHINING OF BEVEL GEARS | 03-05-2009 |
| 20100111629 | UNIVERSALLY USABLE BAR CUTTER HEAD AND USE THEREOF - Bar cutter head ( | 05-06-2010 |
| 409031000 | By relative axial movement between synchronously indexing or rotating work and cutter | 13 |
| 20090060672 | Multiple Operation Gear Manufacturing Apparatus With Common Work Axis - A gear production apparatus for producing a gear from a blank includes a blank retainer rotatably supporting and selectively driving the blank about a work axis. An axially moveable first stock supports a first tool for rotation about a first axis extending substantially perpendicular to the work axis. An axially moveable second stock supports a second tool for rotation about the second axis. The second tool is moveable in two additional degrees of freedom such that the second axis is rotatable about a third axis and the second tool is axially translatable along the second axis. The second tool is moveable with the second stock along a line extending substantially perpendicular to and intersecting the work axis. The first stock is moveable to engage the first tool with the blank to form rough teeth. The second stock is moveable to engage the second tool with the blank. | 03-05-2009 |
| 20090175696 | Machine Tool for Processing Tooth Formations of Workpieces - 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 (S | 07-09-2009 |
| 409032000 | Crowning | 2 |
| 20150147129 | DEVICE AND METHOD FOR MANUFACTURING CROWN GEAR - The inventive device includes a work supporting portion for supporting a work rotatably about a first axis, a cutter supporting portion for supporting a cutter rotatably about a second axis different from the first axis and a moving portion for moving the cutter along a reference line extending through the first axis. The second axis is slanted relative to a reference plane oriented perpendicular to the first axis and a blade edge of the cutter is caused to come into contact with the work at an offset position offset from the reference line. The work and the cutter are driven in synchronism and the cutter is moved along the reference line. | 05-28-2015 |
| 20150336191 | METHOD FOR USING A VARIABLE-TOOTH-THICKNESS WORM-TYPE TOOL TO FABRICATE GEARS WITH LONGITUDINAL CROWNING - A variable-tooth-thickness worm-type tool comprises a main body and a spiral blade distributed on the main body and featuring variable tooth thickness. The main body and the spiral blade are respectively described with a rack cutter coordinate system and a tool coordinate system. The vector parameters based on the rack cutter coordinate system are transformed into vector parameters based on the tool coordinate system so as to simulate the main body with a rack cutter and develop the spiral blade to have variable tooth thickness. Thus, when a gear blank is tooled, the distance between the centers of the tool holder and the workpiece holder can be set as a constant, and the feed in the radial degree-of-freedom can be neglected, with twists of tooth flanks being inhibited. | 11-26-2015 |
| 409033000 | Displacing cutter axially relative to work (e.g., gear shaving, etc.) | 9 |
| 20100290852 | Cutting Machine for Gears, Splines, & Other Shapes - A cutting machine for gear shaping or the like is provided. The cutting machine includes a gear shaping head. The gear shaping head has a ram that is guided by and reciprocates along a linear guide mounted between a saddle of the gear shaping head and the ram. At least one linear motor reciprocates the ram along a stroke axis relative to the saddle. The ram also carries a rotary drive and a spindle that reciprocate in unison with the ram. The rotary drive directly drives the spindle to journal the spindle through incremental angular positions during gear shaping. | 11-18-2010 |
| 20130071197 | Semi-Completing Skiving Method and Device Having Corresponding Skiving Tool for Executing a Semi-Completing Skiving Method - Apparatus and method for skiving first and second work pieces using the same skiving tool to machine both work pieces. Flank cutting edges of the skiving tool subjected to a stronger load during machining of the first work piece are subjected to a lesser load during machining of the second work piece and vice versa. Accordingly, a substantially uniform load is subjected to both flank cutting edges overall, resulting in improved uniformity of wear to both flank cutting edges. | 03-21-2013 |
| 20150328704 | GEAR MACHINING DEVICE - A gear machining device is provided which can machine an accurate gear by a cutting process by synchronously rotating a machining tool and a workpiece at a high speed. A machining tool includes roughing cutting teeth for roughing bottom lands and right and left side faces of teeth of a gear, right side face finishing cutting teeth for finishing the right side faces of the teeth, and left side face finishing cutting teeth for finishing the left side faces of the teeth. The cutting teeth thus cut different parts of the teeth of the gear. This can reduce cutting resistance and suppress self-vibration during the cutting process, thereby improving tooth trace accuracy of the gear. | 11-19-2015 |
| 409034000 | Using gear shaper-cutter | 6 |
| 20110262239 | METHOD OF CONTROLLING MACHINE TOOL AND MACHINE TOOL - To provide a method of controlling a machine tool and a machine tool which allow preventing relieving interference without using a mechanism for causing an offset between a cutter ( | 10-27-2011 |
| 409036000 | Cutting rotating work, the axis of which lies in a plane intersecting the cutter axis | 5 |
| 20140105698 | METHOD FOR SKIVING OF OUTER TOOTHINGS AND APPARATUS COMPRISING AN ACCORDING SKIVING TOOL - A method and an apparatus for skiving a work piece having an outer rotationally symmetric periodic structure by applying a skiving tool. The skiving tool is an inside skiving ring spanning an interior space that includes a plurality of cutting teeth. At least one cutting edge, one cutter head tip and one cutting face are provided on each cutting tooth. The cutting faces of all the cutting teeth are arranged rotationally symmetric with respect to the rotational axis of the skiving tool on a front plane or a front side cone surface of the inside skiving ring, and the cutting teeth project into the interior space and point in the direction of the rotation axis. | 04-17-2014 |
| 20150078850 | Tool, Method and Machine for Producing a Tooth Profile on a Workpiece by Skiving - A tool, a method and a machine for producing a tooth profile by performing a coupled skiving movement between a skiving tool and the workpiece, by rotating the tool about a tool axis of rotation and rotating the workpiece about a workpiece axis of rotation. The tool includes a crown gear, on the front of which a tooth system with a cutting profile is located, which when in use reproduces the tooth profile on the workpiece. | 03-19-2015 |
| 20160016242 | SKIVING OF CYLINDRICAL GEARS - A skiving tool comprising a cutter head ( | 01-21-2016 |
| 20160129511 | GEAR MACHINING DEVICE AND GEAR MACHINING METHOD - A gear machining device for machining a gear by using a machining tool which has a rotation axis inclined relative to a rotation axis of a workpiece and feeding the machining tool relatively in the rotation axis direction of the workpiece by rotating the machining tool in synchronization with a rotation of the workpiece. The gear machining device includes a tool state memorizing portion for memorizing a tool state including a position or a posture of the machining tool relative to the workpiece for machining a tooth bottom, first and second side surfaces of the gear and a machining control portion for controlling machining of the workpiece under each tool state of the machining tool memorized in the tool state memorizing portion. | 05-12-2016 |
| 20160167145 | POWER SKIVING METHOD HAVING MULTIPLE CUT STRATEGY | 06-16-2016 |
| 409037000 | Gear shaving | 2 |
| 20120282055 | SKIVING TOOL COMPRISING CUTTER BARS - A skiving tool for manufacturing a rotationally symmetrical periodical structure on a work piece by means of a power skiving method. The skiving tool comprises a base body comprising a central rotation axis and a plurality of receiving openings and a plurality of cutter bars, fewer than or equal to the number of receiving openings. Each of the receiving openings has an elongate shape having a longitudinal axis, and the receiving openings can be arranged uniformly around the central rotation axis. The longitudinal axes of the receiving openings are generators of a rotation hyperboloid, which is arranged rotationally symmetrical to the central rotation axis. | 11-08-2012 |
| 20160158860 | Skiving Method And Corresponding Device - A method, and device, for producing gears in gearwheels with a skiving wheel that features cutting teeth, a workpiece spindle for receiving the gearwheel and a tool spindle, wherein the tool and workpiece spindles are positioned at an axial cross-angle relative to one another, wherein the gearing is produced in successive processing steps. Spacewidths between the teeth are incrementally cut deeper. The axial spacing between the tool and workpiece spindles and a turning angle is changed between the processing steps in such a way that a first cutting edge section of the cutting tooth engages on a tooth flank section of a first tooth flank produced during a preceding processing step with an at least reduced material removal referred to other cutting edge sections of this cutting tooth. | 06-09-2016 |
| 409038000 | Using rotary cutter | 15 |
| 20110058911 | MACHINE TOOL FOR INCORPORATING GEAR TEETH INTO THE INNER SIDE OF AN ANNULAR WORKPIECE - The invention is directed to a machine tool for incorporating gear teeth into the inner side of an annular workpiece by metal cutting, with | 03-10-2011 |
| 20120099939 | METHOD AND TOOL FOR MANUFACTURING FACE GEARS - 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. | 04-26-2012 |
| 20120301241 | GEAR SHAPING MACHINE - The vertical movement cycle and trajectory inclination angle of a cutter are switched so that when a main spindle is moving downward, a head is moved to position the cutter at a machining location, and the cutter is lowered rectilinearly; that when the main spindle is moving upward, the head is moved to position the cutter at a withdrawal location; that, when an external gear is to be generated by cutting, relieving means for rectilinearly raising the cutter cause the machining location to be positioned on one radial side of the cutter and move the cutter downward parallel to the axis of a workpiece; and that when an internal gear is to be generated by cutting, said relieving means cause the machining location to be positioned on the other radial side of the cutter and move the cutter downward parallel to the axis of the workpiece. | 11-29-2012 |
| 20120328383 | CONTINUOUS METHOD FOR MANUFACTURING FACE GEARS - A continuous method of manufacturing a face gear utilizing a tool, representing a plane which can be oriented to a face gear workpiece under an angle equal to the pressure angle of the mating pinion member of the gear set (e.g. the face gear set), and, which can be rotated around a virtual pinion axis to generate a tooth flank on the workpiece. The tool is a face cutter which performs a continuous indexing motion with equal hand of rotation of cutter and workpiece (e.g. face gear) thereby describing a hypocycloid path of motion and an indexing ratio of two cutter rotations during one workpiece gear rotation which will produce straight lines along the face width of the face gear. | 12-27-2012 |
| 20120328384 | Robust Method for Skiving and Corresponding Apparatus Comprising a Skiving Tool - Method and an apparatus for setting up and plunging a skiving tool with respect to a work piece, on which a rotational-symmetric, periodic structure is to be manufactured with application of the skiving tool, wherein a radial feed motion in the direction of the work piece is performed, so to bring the skiving tool in contact with the work piece for the first time, and the skiving tool is plunged from the moment of the first contact down to a predetermined depth in a radial plunging movement, before the proper skiving of the rotation-symmetric, periodic structure is carried out. | 12-27-2012 |
| 20130051948 | GEAR MACHINING METHOD - Provided is a gear machining method whereby a gear to be machined that is eccentrically mounted can be machined with high accuracy. For this purpose, the gear machining method is such that a target table rotation phase (Co) for a rotation table ( | 02-28-2013 |
| 20130149061 | GEAR PROCESSING MACHINE - A machine tool comprising a machine base having a first side comprising a first planar surface and a machine column movable along an arcuate path on the first planar surface. The machine further comprises a first spindle movable in a first linear direction and being rotatable about a first axis of rotation. The machine further comprises a machine turret located on a second planar surface of the machine base first side. The machine turret is angularly movable about a pivot axis. The machine turret includes a second spindle positioned within the turret with the second spindle being rotatable about a second axis of rotation and being movable in a second linear direction. | 06-13-2013 |
| 20150043984 | MACHINE TOOL AND METHOD FOR THE MACHINING OF WORKPIECES HAVING AT LEAST TWO SEPARATE MACHINING UNITS - The present disclosure relates to an apparatus as well as to a method for the manufacture or processing of large tooth systems for internal or external teeth or large cogs in small production runs, wherein at least two machining methods are used with the aim of a complete machining of precision-relevant surfaces at these workpieces and while realizing production times which are as short as possible. | 02-12-2015 |
| 20150078851 | COOLANT DELIVERY SYSTEM, SKIVING MACHINE EQUIPPED WITH THE SYSTEM, AND SKIVING METHOD PERFORMED WITH THE SYSTEM - A coolant delivery system which serves to deliver a cooling agent whose purpose is to carry away the heat that is generated in the process of machining a toothed profile by means of a skiving wheel rotating about its rotary axis. The coolant delivery system provides for a delivery path section which, seen in a projection onto a plane extending orthogonal to the rotary axis, is arranged closer to the axis than the toothed profile of the skiving wheel and has a dimensional component in the axial direction. | 03-19-2015 |
| 20150375352 | METHOD OF CUTTING OR MACHINING INTERNAL GEAR TEETH, MOTION-CHANGING DEVICE, AND MACHINE TOOL - The invention concerns a method for the chip-removing generation or machining of internal gear teeth on a workpiece which is rotatable about its rotary axis and radially delimits a free space that extends axially to one side beyond the internally toothed region and whose radial width narrows in the direction of its axial extension in at least one location. An externally toothed tool which is driven in rotary movement about its axis of rotation is brought from the opposite side into rolling engagement with the internally toothed region with the rotary axes crossed at an angle. Through the application of a mechanical force, the chips which are produced in the process and which are subject to a centrifugal force are caused to change their movement in the zone of narrowing width in a manner directed against the origin of the centrifugal force. | 12-31-2015 |
| 409040000 | Plural rotary cutters | 3 |
| 20110268524 | APPARATUS AND METHOD FOR CUTTING TEETH IN WORKPIECES AND ASSOCIATED TOOL SET - A method for cutting teeth in workpieces, wherein, in a roughing operation, a substantially uncut blank receives rough teeth using a cutting tool having cutting teeth. Operation teeth are produced, the tooth width of which is defined by the spacing between the flanks of the teeth and is greater than the target dimension. In a subsequent deburring operation, a chamfer is incorporated into the end face edge of the tooth flanks, accompanied by the removal of an end face burr. Lastly, in a smoothing operation, the tooth width of the teeth is brought to the target dimension by machining the tooth flanks. | 11-03-2011 |
| 20140255118 | Gear Cutting Machine with Double Machining Head - A gear cutting machine includes a slide, which can be moved in a first direction, and at least two cutting heads, which are mounted on the slide. The cutting heads are mounted on the slide in such a way that they can be moved, independently of each other, in a second direction, and each of the cutting heads includes a motor spindle for receiving a cutting tool. | 09-11-2014 |
| 20150375319 | SLIDE ROLLING PROCESS FOR THE GENERATION OF BEVEL GEARS - Generating cutting processes for producing bevel gears and employing a single rotary disc cutter ( | 12-31-2015 |
| 409041000 | On reciprocating carriage | 2 |
| 20130094917 | Horizontal Gear Shaping Machine With Dual Shaping Heads - A gear shaping machine is provided. The gear shaping machine includes a pair of horizontally reciprocating gear shaping heads mounted to a column. Each gear shaping head includes a spindle assembly including an integral rotary drive for indexing the spindle. The spindle assembly is carried by a spindle slide. The spindle slide also carries a plurality of bearing blocks to allow for sliding movement of the gear shaping head relative to rails mounted on the column. A linear drive arrangement is operably coupled between each gear shaping head and the column. The linear guide arrangement allows for controlled linear translation of each gear shaping head independently of one another. Each gear shaping head also includes a back-off mechanism for independently moving the spindle assembly toward the workpiece during a cutting stroke and away from the workpiece during a return stroke of each gear shaping head. | 04-18-2013 |
| 20160193676 | GEAR-CUTTING MACHINE | 07-07-2016 |
| 409048000 | Making a noncircular gear, worm, rotor, or a planar-faced gear | 3 |
| 20080273935 | Method for Cutting Worm and Worm Wheel in a Worm-Gear Reduction Unit with Circulation of Bearing Balls, and Related Cutting Tools - A method for cutting worm and worm wheel in a worm-gear reduction unit ( | 11-06-2008 |
| 20120057944 | GEAR MACHINING APPARATUS, CUTTER AND STRAIN WAVE GEARING DEVICE - A gear machining apparatus includes a skiving mechanism positioning a work to be machined and a pinion type cutter on axes skewing from each other, the skiving mechanism rotating the work at a predetermined position and feeding the cutter while rotating in a direction of a tooth trace of a gear to be formed at the work synchronously to the rotation of the work for producing the gear from the work. The cutter includes a tooth surface which is formed with an involute region having an involute curve in an area including a pitch circle in a tooth depth direction, an addendum region continuously formed from the involute region to an addendum, and a dedendum region continuously formed from the involute region to a dedendum the addendum region and the dedendum region being shaped in a configuration different from the involute region. | 03-08-2012 |
| 20130089386 | Variable-Tooth-Thickness Worm-Type Tool and Method For Using The Same To Fabricate Gears - A variable-tooth-thickness worm-type tool comprises a main body and a spiral blade distributed on the main body and featuring variable tooth thickness. The main body and the spiral blade are respectively described with a rack cutter coordinate system and a tool coordinate system. The vector parameters based on the rack cutter coordinate system are transformed into vector parameters based on the tool coordinate system so as to simulate the main body with a rack cutter and develop the spiral blade to have variable tooth thickness. Thus, when a gear blank is tooled, the distance between the centers of the tool holder and the workpiece holder can be set as a constant, and the feed in the radial degree-of-freedom can be neglected, with twists of tooth flanks being inhibited. | 04-11-2013 |
