Showing papers on "Gear shaping published in 2010"
23 Feb 2010
TL;DR: In this article, the authors present a framework for the design of a single-parametric motes for the development of a cutting tool for a given gear, which is used in the context of form-gear cutting tools.
Abstract: Part I: Basics Gears: Geometry of the Tooth Flanks Basic Kinds of Gears Analytical Description of Gear Tooth Flanks Gear Tooth Surfaces those Allowing Sliding Over Them Principal Kinematics of Gear Machining Operations Relative Motions in Gear Machining Rolling of the Conjugate Surfaces Kinematics of Continuously Indexing Methods of Gear Machining Processes Vectorial Representation of the Gear Machining Mesh Kinematic Relationships for the Gear Machining Mesh Configuration of the Vectors of Relative Motions Kinematics of Gear Machining Processes Elements of Coordinate Systems Transformations Coordinate Systems Transformation Conversion of the Coordinate System Orientation Direct Transformation of Surfaces Fundamental Forms Part II: Form Gear Cutting Tools Gear Broaching Tools Kinematics of the Gear Broaching Process Generating Surface of a Gear Broach Cutting Edges of the Gear Broaching Tools Chip Removal Diagrams Sharpening of Gear Broaches A Concept of Precision Gear Broaching Tool for Machining Involute Gears Application of Gear Broaching Tools Shear-Speed Cutting Rotary Broaches: Slater Tools Broaching Bevel Gear Teeth End-Type Gear Milling Cutters Kinematics of Gear Cutting with End-Type Milling Cutter Generating Surface of the End-Type Gear Milling Cutter Cutting Edge of the End-Type Gear Milling Cutter Accuracy of the Gear Tooth Flanks Machined with End-Type Milling Cutter Application of the End-Type Gear Milling Cutters Disk-Type Gear Milling Cutters Kinematics of Gear Cutting with Disk-Type Milling Cutter Generating Surface of the Disk-Type Gear Milling Cutter Cutting Edges of the Disk-Type Gear Milling Cutter Profiling of the Disk-Type Gear Milling Cutters Cutting Edge Geometry of the Disk-Type Milling Cutter Disk-Type Milling Cutters for Roughing of Gears Accuracy of the Gear Tooth Flanks Machined with the Disk-Type Milling Cutters Application of Disk-Type Gear Milling Cutters Nontraditional Methods of Gear Machining with Form Cutting Tools Plurality of Single-Parametric Motions Implementation of the Single-Parametric Motions for Designing of Form Gear Cutting Tool Diversity of Form Tools for Machining a Given Gear On Classification of Form Gear Tools Part III: Cutting Tools for Gear Generating Parallel-Axis Gear Machining Mesh Kinematics of the Parallel-Axis Gear Machining Mesh Rack Cutters for Planing of Gears Generating Surface of Rack Cutter On the Variety of Feasible Tooth Profiles of the Rack Cutters Cutting Edges of the Rack Cutter Profiling of the Rack Cutters Cutting Edge Geometry of the Rack Cutter Chip Thickness Cut by Cutting Edges of the Rack Cutter Tooth Accuracy of the Machined Gear Application of the Rack Cutters Potential Methods of Gear Cutting and Designs of Rack-Type Gear Cutting Tools Gear Shaper Cutters I: External Gear Machining Mesh Kinematics of Gear Shaping Operation Generating Surface of Gear Shaper Cutter Cutting Edges of the Shaper Cutter Profiling of Shaper Cutters Critical Distance to the Nominal Cross-Section of the Shaper Cutter The Cutting Edge Geometry of a Shaper Cutter Tooth Desired Corrections to the Shaper Cutter Tooth Profile Thickness of Chip Cut by Shaper Cutter Tooth Accuracy of Gears Cut with the Shaper Cutter Application of Gear Shaper Cutters Gear Shaper Cutters II: Internal Gear Machining Mesh Kinematics of Shaping Operation of an Internal Gear Design of Shaper Cutters Thickness of Chip Cut by the Gear Shaper Cutter Tooth Accuracy of the Shaped Internal Gears Enveloping Gear Shaper Cutters Application of Gear Shaper Cutters Part IV: Cutting Tools for Gear Generation Intersecting-Axis Gear Machining Mesh Kinematics of the Intersecting-Axis Gear Machining Mesh Gear Shapers with Tilted Axis of Rotation Kinematics of Gear Shaping Operation with the Shaping Cutters Having Tilted Axis of Rotation Determination of Generating Surface of a Shaper having Tilted Axis of Rotation Illustration of Capabilities of the External Intersecting-Axis Gear Machining Mesh Gear Cutting Tools for Machining Bevel Gears Principal Elements of Kinematics of Bevel Gear Generation Geometry of the Interacting Tooth Surfaces Peculiarities of Generation of Straight Bevel Gears with Offset Teeth Generation of Straight Bevel Gear Teeth Peculiarities of Straight Bevel Gear Cutting Milling of Straight Bevel Gears Machining of Bevel Gears having Curved Teeth Gear Shaper Cutters Having Tilted Axis of Rotation: Internal Gear Machining Mesh Principal Kinematics of Internal Gear Machining Mesh Peculiarities of Design of Gear Cutting Tools Part V: CUTTING TOOLS FOR GENERATING OF GEARS: Spatial Gear Machining Mesh Section V-A: Design of Gear Cutting Tools: External Gear Machining Mesh Generating Surface of the Gear Cutting Tool Kinematics of External Spatial Gear Machining Mesh Auxiliary Generating Surface of the Gear Cutting Tool Examples of Possible Kinds of Auxiliary Generating Surfaces of Gear Cutting Tools Generation of Generating Surface of a Gear Cutting Tool Use of the DG-Based Methods for the Determination of the Design Parameters of Generating Surfaces of the Gear Cutting Tools Possible Kinds of Generating Surfaces of Gear Cutting Tools Constraints on the Design Parameters of Generating Surface of a Gear Cutting Tool Hobs for Machining Gears Transformation of the Generating Surface into a Workable Gear Cutting Tool Geometry and Generation of Rake Surface of a Gear Hob Geometry and Generation of Clearance Surfaces of Gear Hobs Accuracy of Hobs for Machining of Involute Gears Design of Gear Hobs The Cutting Edge Geometry of a Gear Hob Tooth Constraints on the Parameters of Modification of the Hob Tooth Profile Application of Hobs for Machining Gears Gear Shaving Cutters Transformation of Generating Surface into a Workable Gear Shaving Cutter Design of Gear Shaving Cutters Axial Method of Gear Shaving Process Diagonal Method of Gear Shaving Process Tangential Method of Gear Shaving Process Plunge Method of Gear Shaving Process Advances in Design of Shaving Cutter Peculiarities of Gear Shaving Process Examples of Implementation of the Classification of Kinds of the Gear Machining Meshes A Hob for Tangential Gear Hobbing A Hob for Plunge Gear Hobbing Hobbing of a Face Gear A Worm-Type Gear Cutting Tool Having the Continuous HS-Cutting Edge Cutting Tools for Scudding Gears A Shaper Cutter with the Tilted Axis of Rotation for Shaping Cylindrical Gears A Gear Cutting Tool for Machining a Worm in Continuously Indexing Method Rack Shaving Cutters A Tool for Reinforcement of a Gear by Surface Plastic Deformation Conical Hob for Palloid Method of Gear Cutting Section V-B: Design of Gear Cutting Tools: Quasi-Planar Gear Machining Mesh Kinematics of Quasi-Planar Gear Machining Mesh Gear Cutting Tools for Machining Bevel Gears Design of a Gear Cutting Tool for Plunge Method of Machining of Bevel Gears Face Hob for Cutting Bevel Gear More Possibilities for Designing Gear Cutting Tools Based on Quasi-Planar Gear Machining Mesh Section V-C: Internal Work-Gear to Cutting Tool Mesh Kinematics of Internal Spatial Work-Gear to Cutting Tool Mesh Gear Cutting Tools Featuring Enveloping Generating Surface Gear Cutting Tools having a Cylindrical Generating Surface Gear Cutting Tools having Conical Generating Surface Gear Cutting Tools having a Toroidal Generating Surface Gear Cutting Tools for Machining Internal Gears Principal Design Parameters of a Gear Cutting Tool for Machining an Internal Gear Examples of Gear Cutting Tool for Machining an Internal Gear Conclusion Appendices References Index
40 citations
Patent•
18 Aug 2010
TL;DR: In this paper, a manufacturing method of an integral herringbone gear shaft is described, which comprises the following steps that: material preparation: a center hole is drilled on one end of a work piece; primary machining; primary detection; heat treatment; secondary machining, secondary detection; rough milling; chamfering at the gear end; coating anti-carburizing layers on both ends of the gear shaft so that the depth of a carburized layer is 3.55 to 3.95mm, and quenching so as to enable the hardness
Abstract: The invention discloses a manufacturing method of an integral herringbone gear shaft, which comprises the following steps that: material preparation: a center hole is drilled on one end of a work piece; primary machining; primary detection; heat treatment; secondary machining; secondary detection; rough milling; chamfering at the gear end; coating anti-carburizing layers on both ends of the herringbone gear shaft so that the depth of a carburized layer is 3.55 to 3.95mm, and quenching so as to enable the hardness of a gear part to reach HRC58 to 62, and to enable the hardness of the heart to reach HRC28 to 33; carrying out shoot peening on a gear surface; tertiary machining; gear shaping; external grinding; fine milling; and inspection. The manufacturing method of the integral herringbone gear shaft has the advantages of improving the bending strength of the gear root, reducing the manufacturing cost and improving the manufacturing precision.
23 citations
Patent•
23 Jun 2010
TL;DR: In this paper, a numerical control gear shaping, gear milling compound machine tool, comprising a tool body, a numerical controlling rotating table, a compound functional stand column and sliding plates provided with tool rests, is presented.
Abstract: The invention relates to a numerical control gear shaping, gear milling compound machine tool, comprising a tool body, a numerical control rotating table, a compound functional stand column and sliding plates provided with tool rests. The tool surface of the tool body is provided with a horizontal moving guide rail; the bottom of the stand column is coupled to a rotating/feeding sliding plate which is located on the guide rail of the tool surface, ensuring horizontal movement and functionally transformed rotary movement; the vertical surface of the stand column is symmetrically provided with sliding plates which are provided with functional tool rests; the numerical control rotating table is provided with a replaceable pawl clamp which fixes workpieces to be processed and drives the workpieces to be processed to rotate on the table surface. The machine tool is suitable for the gear processing requirements and special processing requirements in the industries of mine, metallurgy, ship, energy, and the like, integrates multiple processing functions on one machine tool, is suitable for both trial production of users and batch production, reduces the device investment and occupation area for users and increases the usage range of the device.
9 citations
Patent•
29 Sep 2010
TL;DR: In this article, a pinion cutter with multilayer edge surfaces is described, which comprises a cutter body and edge surfaces that are circumferentially distributed on the cutter body.
Abstract: The utility model relates to a pinion cutter with multilayer edge surfaces, which comprises a cutter body and cutter edge surfaces that are circumferentially distributed on the cutter body. The pinion cutter is characterized in that the cutter edge surfaces have more than one layer in the axial direction of the cutter body, withdrawing and cutting grooves for withdrawing and cutting are remained between adjoining edge surfaces, the last layer of the cutter edge surface is a pinion cutter edge-shaped standard, and the front layer of the cutter edge surface copies the last layer of the cutter edge surface to sequentially reduce the outline of cutting feed quantity during gear shaping according to the pinion cutter. The pinion cutter has the advantages of completing the coarse gear shaping and the fine gear shaping by one-time operation by adopting the structure of the multilayer edge surfaces, preventing form twice cutter setting, and improving the machining efficiency and the precision.
8 citations
Patent•
02 Jun 2010
TL;DR: In this article, a numerical control gear sector gear slotting machine was proposed to process an eccentric gear sector of a rock arm shaft, and a method for processing the same was presented.
Abstract: The invention discloses a computing formula for a numerical control gear sector gear slotting machine to process an eccentric gear sector of a rock arm shaft, and a method for processing the same. Thecomputing formula comprises a computing formula of the hobbing radial radius rho of the eccentric gear sector of the rock arm shaft, a computing formula of the corresponding arc length of the revolution angle of the eccentric gear sector of the rock arm shaft and a computing formula for processing the contour curve of a reference circle of the eccentric gear sector of the rock arm shaft. The processing method comprises the following steps: 1) starting a program; 2) computing the initial position of the eccentric gear sector of the rock arm shaft; 3) starting auxiliary actions; 4) starting tocut the position; 5) inputting the cutting parameter into a numerical control register; 6) computing the displacement at three coordinate axes by a numerical control system; 7) cutting the contour line of the eccentric gear sector through the linkage of the three coordinate axes; 8) extending the Z axis to a retracting position; 9) extending the Y axis and the X axis to the retracting position; 10) stopping a cooling fluid and stopping a slotting cutter; and 11) ending the program. The computing formula and the method have the advantages that a parameterized programming can finish the computation and processing of the contour curve of the whole workpiece, and the parameter can be input into the numerical system in a short time to achieve the requirement of processing an eccentric distancegear sector.
6 citations
Patent•
02 Jun 2010
TL;DR: In this article, a vertical column overturn type numerical control fan-shaped gear shaper has been proposed, which can adjust the cutting angle of a tool by using a rotating hinged shaft.
Abstract: The invention discloses a vertical column overturn type numerical control fan-shaped gear shaper, the structure thereof mainly comprises: a lower bed body, a work bench, a middle bed body, a verticalcolumn, a main drive mechanism, a tool carrier mechanism; a vertical column overturning mechanism is arranged between the middle bed body and the vertical column, the vertical column overturning mechanism is that: the front part of the vertical column is hinged with a rotary hinged shaft which is positioned on the middle bed body, the back part of the vertical column is hinged with an ascending and descending mechanism which is positioned on the middle bed body; and the tool carrier mechanism is hinged at the front part of the vertical column. The vertical column overturn type numerical control fan-shaped gear shaper has the advantages that: the cutting angle of a tool can be adjusted by the vertical column overturning mechanism, the gear shaper can process a fan-shaped gear with constantspeed ratio or variable speed ratio which is provided with the cutting angle with the range of 0 degree to 10 degrees, the vertical column overturning mechanism is simple, the precision is high, the efficiency is high and the adjustment is convenient, thus being the easiest mode for adjusting the cutting angle. The tool carrier mechanism has good rigidness and can realize the high-speed cutting. Atool avoiding mechanism can ensure the accuracy, synchronization, no loss and no lag of the tool avoiding, and the noise is very low, which is just more than 70db.
6 citations
Patent•
[...]
TL;DR: In this paper, the vertical movement cycle and the movement trajectory inclination angle of a cutter are switched so that when a main spindle (113) is moving downward, a head (112) is moved so as to position the cutter (114) at a machining location, and the cutter is lowered rectilinearly.
Abstract: The vertical movement cycle and the movement trajectory inclination angle of a cutter (114) are switched so that when a main spindle (113) is moving downward, a head (112) is moved so as to position the cutter (114) at a machining location, and the cutter (112) is lowered rectilinearly; that when the main spindle (113) is moving upward, the head (112) is moved so as to position the cutter (114) at a withdrawal location; that, furthermore, when an external gear is to be generated by cutting, relieving means (117, 118, 120, 121) for rectilinearly raising the cutter (114) cause the machining location to be positioned on one radial side of the cutter (114) and move the cutter (114) downward parallel to the axis of a workpiece (1A); and that, meanwhile, when an internal gear is to be generated by cutting, said relieving means (117, 118, 120, 121) cause the machining location to be positioned on the other radial side of the cutter (114) and move the cutter (114) downward parallel to the axis of the workpiece (1A).
5 citations
Patent•
21 Jul 2010
TL;DR: In this paper, a numerical control system technique is adopted to control a gear type cutter and a workpiece to be processed to rotate at high speed according to a strict speed ratio, and the knife edge of the cutter carries out relative slip relative to the tooth direction of the workpiece so as to generate a cutting action.
Abstract: The invention relates to a processing method for manufacturing the teeth of cylindrical gears by turning. According to the principle that the tooth profiles of two gears form a conjugate curve mutually when crossed helical gears are engaged and driven and the gears carry out relative slip along a tooth direction, a numerical control system technique is adopted to control a gear type cutter and a workpiece to be processed to rotate at high speed according to a strict speed ratio, the knife edge of the cutter carries out relative slip relative to the tooth direction of the workpiece so as to generate a cutting action, and the system also controls the workpiece to be fed along the axis for continuously processing the tooth widths of the gears. The invention has the advantages that a generation method is adopted, and the principle that the tooth profiles of the two gears form the conjugate curve mutually when the crossed helical gears are engaged and driven is utilized to process the tooth profiles of the gears. The processing process of the method is similar to a shaving principle, but the cutter adopts a gear-shaped pinion cutter, so that the processing efficiency is very high. The method has the greatest advantages of simple manufacture of the cutter, very high cutting efficiency, high accuracy and simple equipment manufacture. The method can replace gear shaping, gear hobbing and gear broaching at present and has very good market prospect. Practices prove that the technique reaches the international advanced level.
5 citations
Patent•
28 Apr 2010
TL;DR: In this article, a static pressure spindle device was designed for high speed gear shaping machine manufacturing, where a male spline guide rail was separated from a spindle, and static pressure oil ways were arranged in a female spline and a static bearing, so that the spindle meets the requirement of high speed processing.
Abstract: The invention discloses a static pressure spindle device, and relates to the field of high speed gear shaping machine manufacturing. A male spline guide rail is separated from a spindle, and static pressure oil ways are arranged in a female spline guide rail and a static pressure bearing, so that the spindle meets the requirement of high speed processing, is suitable for the reciprocating frequency of high speed gear shaping of the gear shaping machine, and has enough rigidity and motion accuracy, and the integral structure has stable motion, high precision, long service life and strong processing capacity. The static pressure oil ways can reduce friction between the spindle and a static pressure bearing, and between the male spline guide rail and the female spline guide rail. A design of separated male spline guide rail and the spindle can facilitate replacing the male spline guide rail and the female spline guide rail, and the whole spindle is not needed to be replaced due to the wear of the male spline guide rail, so the service life of the spindle is prolonged, and the production cost is reduced.
4 citations
Patent•
11 Aug 2010
TL;DR: In this article, an external spline guide rail and the main shaft are separated and a static pressure oil path is arranged in the internal spline and the static pressure bearing, thus the main shift is adaptive to high speed processing, meets the reciprocating motion frequency of the high speed gear shaping on the gear shaper.
Abstract: The utility model provides a static pressure main shaft apparatus, and relates to a manufacturing field for a high speed gear shaper An external spline guide rail and the main shaft are separated and a static pressure oil path is arranged in the internal spline guide rail and the static pressure bearing, thus the main shift is adaptive to the high speed processing, meets the reciprocating motion frequency of the high speed gear shaping on the gear shaper and has enough rigidity and motion precision; the entire structure has stable motion, high precision, long service and strong processing capability; the static pressure oil path can reduce frictions between the main shaft and the static pressure bearing and between the external spline guide rail and the internal spline guide rail; the separation design of the external spline guide rail and the main shaft is convenient for replacing the external spline guide rail and the internal spline guide rail without replacing the whole main shaft owing to wearing on the external spline guide rail, thus prolonging the service life of the main shaft and decreasing the production cost
3 citations
Patent•
18 Aug 2010
TL;DR: In this paper, a method for fixing shaft parts in the process of gear shaping is described, in particular to fix the shaft parts on a worktable of a gear shaping machine by a clamping fixture, a press plate, a supporting block, double end studs, and holddown nuts.
Abstract: The invention relates to a method for fixing shaft parts in the process of gear shaping, in particular to a method for fixing the shaft parts on a worktable of a gear shaping machine by a clamping fixture, a press plate, a supporting block, double end studs, and hold-down nuts, wherein the clamping fixture consists of a pipe body and a lower flange provided with positioning holes, the pipe body is provided with adjusting bolt holes comprising screw threads, and the adjusting bolt holes are provided with adjusting bolts. The clamping fixture is fixed on a horizontal worktable of the gear shaping machine by T-shaped slotted nuts through the positioning holes of the lower flange, and a center hole of the clamping fixture is positioned at a workpiece hole of the worktable; the adjusting boltson the clamping fixture are adjusted to make the shaft parts coaxial to the gyration centre of the workpiece hole of the worktable; and the press plate is tightly pressed on the upper surface of a lug boss of the shaft parts by the hold-down nuts, and the shaft parts are fixed on the horizontal worktable.
Patent•
25 Aug 2010
TL;DR: In this paper, a cutter relieving mechanism of gear shaping machine is described, where the cutter holder is fixed to roller between conjugated cams driven by driver, and the cutter axle is linked with cutter holder in slide mode.
Abstract: A cutter relieving mechanism of gear shaping machine is disclosed. The cutter axle is connected via disc spring to screw. The cutter holder is fixed to roller between conjugated cams driven by driver. Said cutter axle is linked with cutter holder in slide mode. When cutter axle is moving downward for working, the roller is in contact with two cams. When cutter axle is moving upward, the roller isseparated from two cams.
TL;DR: In this article, the formation of circular teeth surfaces is considered, in cases where the influence of an eccentric modifier is taken approximately and precisely into account, and the limitations on the modifier parameters are established.
Abstract: The formation of circular teeth surfaces is considered, in cases where the influence of an eccentric modifier is taken approximately and precisely into account. The limitations on the modifier parameters are established. The modified motion ensures localized contact, with less likelihood of manufacturing and assembly errors when smaller-diameter cutter heads are employed in gear shaping.
Patent•
12 May 2010
TL;DR: In this paper, a manufacturing method of a rocker shaft gear sector of a negative ratio redirector and a gear shaping cutter is described, which consists of the following steps of: firstly determining the angle transmission ratio of the redirector; then determining a computational formula of the special gear shape of the rocker-shaft gear sector according to the transmission ratio; then drawing a curve group according to computational formula to determine a male normal line of a large gear shape end used as a measurement foundation during machining.
Abstract: The invention relates to a manufacturing method of a rocker shaft gear sector of a negative ratio redirector and a gear shaping cutter used for the same. The manufacturing method comprises the following steps of: firstly determining the angle transmission ratio of the redirector; then determining a computational formula of the special gear shape of the rocker shaft gear sector according to the transmission ratio; then drawing a curve group according to the computational formula to determine a male normal line of a large gear shape end used as a measurement foundation during machining; then inputting the transmission ratio on a gear shaping machine to generate a machining procedure; and finally utilizing the specially-made gear shaping cutter to carry out the cutting machining of the rocker shaft gear sector. The manufacturing method can be realized by using the gear shaping cutter, the rocker shaft gear sector with different gear shapes can be manufactured by adopting the manufacture method of the invention, and the negative ratio of the redirector can be realized in such a way that the rocker shaft gear sector is matched with a piston fitted with the rocker shaft gear sector.
Patent•
11 Aug 2010
TL;DR: In this paper, an inner half-tooth gear shaping cutter is described, which at least comprises a cutter handle, a disassembling portion, a cutter body and cutter teeth.
Abstract: The utility model discloses an inner half-tooth gear shaping cutter, which at least comprises a cutter handle, a disassembling portion, a cutter body and cutter teeth. The cutter teeth are evenly distributed on the cutter body, the cutter handle is a taper shank, the disassembling portion is located between the cutter handle and the cutter body, the cutter teeth are involute half teeth which are parts of involute full teeth, tooth height of the involute half teeth ranges is1/2-3/4 of the tooth height of the involute full teeth, and cutter profiles of the cutter teeth are involutes. The inner half-tooth gear shaping cutter shortens traditional process, processed gears are precise in dimension, good consistency of the gears can be guaranteed, and the gear shaping cutter is adaptable to mass production.
18 Dec 2010
TL;DR: In this paper, a novice method is proposed for face gear generated by use of a general shaper, which includes tooth generation, limiting inner and outer radii, tooth contact analysis of gear drive and an experimental investigation was also developed in the bevel gear meshing machine.
Abstract: Face gear is the major parts of helicopter transmissions for split torque equipment. The process generation of face gear is critical factors to prevent the face gear drive to be applied. A novice method is proposed for face gear generated by use of a general shaper. Face gear design and geometry were investigated that include tooth generation, limiting inner and outer radii, tooth contact analysis of gear drive. A face gear with 89 teeth was generated successfully by the shaper. In order to demonstrate the bearing contact of face gear drive, an experimental investigation was also developed in the bevel gear meshing machine. The results show the bearing contact of face gear drive is correspondence to the computerized design, which validated the feasibility of face gear shaping by a general shaper.
Patent•
04 Aug 2010
TL;DR: In this paper, the authors describe the setting of a man-machine interface of a multi-axis numerical control gear shaping machine for processing a cylindrical gear, which is used for conveniently setting processing parameters and executing a part processing procedure.
Abstract: The invention discloses setting of a man-machine interface of a multi-axis numerical control gear shaping machine for processing a cylindrical gear. In the setting of a man-machine interface of a multi-axis numerical control gear shaping machine for processing a cylindrical gear, a siemens 840D numerical control system is used for making a menu type man-machine interface for processing the cylindrical gear, wherein the menu type man-machine interface comprises a workpiece basic data setting interface, a gear processing data setting interface, a gear cutting data setting interface and a gear cutter data setting interface. The invention has the advantages that when the multi-axis numerical control gear shaping machine processes the cylindrical gear, the man-machine interface can be used for conveniently setting processing parameters and executing a part processing procedure, and an operator does not need to memorize the definitions and the variable addresses of the processing parameters, thus complicated numerical control system operations are changed to be simple, clear, easy and the modification is convenient.
26 Jun 2010
TL;DR: In this article, the position relationship between the gear shaping cutter's and the gear's pitch curve was analyzed, and a simpler machining mathematical model was put forward for the gear set machined with this model.
Abstract: Limacon gear is a new kind of non-circular gear, and its gear set have precise transmission ratio. The principle of generating method is that tooth profile of the conjugated gears can form envelope graph to each other. Aimed at the processing problem of limacon gear set with involute tooth profile, the tooth profile equation of the gear shaping cutter was established. The position relationship between the cutter's and the gear's pitch curve was analyzed, and a simpler machining mathematical model was put forward. The gear set machined with this model have been put into practice, and have gained favorable effect. So this model is important to designing and manufacturing limacon gear set both in theory and in practice.
TL;DR: In this article, a mathematical model of error prediction for rack cutter profile angle was established, on the base of which the principle of error control and the method of revision control were presented.
Abstract: Relative to gear shaping and gear hob, using gear slotting produces herringbone gear which is used in nuclear power turbine speed redactor has more obvious technical and economic benefits, but profile angle error of slotting cutter causes profile error and base pitch deviation of herringbone gear. It will result in high-frequency noise which damages the tactical and technical performance of warship. By analyzed the wire cutting system of rack cutter used in MAAG type gear machining for herringbone gear, the mathematical model of error prediction for rack cutter profile angle was founded. On the base of model of error prediction, the principle of error control and the method of revision control are presented. Finally, the example of prediction and control is provided.
TL;DR: Based on the technology of face gear shaping, the tooth surface design and geometry were investigated that include tooth generation, limiting inner and outer radii, and the computer were applied to simulated tooth contact analysis and transmission ratio of gear drive as discussed by the authors.
Abstract: Based on the technology of face gear shaping, the tooth surface design and geometry were investigated that include tooth generation, limiting inner and outer radii. The computer were applied to simulated tooth contact analysis and transmission ratio of gear drive. A novice method is proposed for face gear generated by use of a general shaper. A face gear with 77 teeth was generated successfully by the shaper. For the purpose to certificate the bearing contact of gear drive, an experimental investigation was also developed in the bevel gear meshing machine. The results show the experimental bearing contact of face gear drive is correspondence to the computerized design, which validated the feasibility of face gear shaping by a general shaper.
Patent•
[...]
04 Feb 2010
TL;DR: In this article, a gear shaping machine can form a plurality of engagement teeth on the outer peripheral surface of a portion in an axial direction of a workpiece with a shaft shape, and a lubricant feeding device 48 for injecting and feeding oil mist toward a cutting clearance between a flank 36a of the shaper blade 36 at cutting and a surface 22b to be cut from above the cutting clearance 46.
Abstract: PROBLEM TO BE SOLVED: To attain a desired smooth surface to be cut with sufficient accuracy even in a shaper blade repeatedly vertically moved at a relatively slow cutting speed when an outer peripheral surface of a portion in an axial direction of a workpiece with a shaft shape is cut by a gear shaping machine to form an engagement tooth. SOLUTION: The gear shaping machine can form a plurality of engagement teeth 5 on the outer peripheral surface of the portion 22a in the axial direction of the workpiece 22 in its circumferential direction in the state that an axis 4 of the workpiece 22 with the shaft shape is vertically directed. The gear shaping machine 1 is provided with the shaper blade 36 repeatedly vertically moved I, J and cutting the outer peripheral surface of the portion 22a of the workpiece 22 at descending movement to form the engagement tooth 5; and a lubricant feeding device 48 for injecting and feeding oil mist 47 toward a cutting clearance 46 between a flank 36a of the shaper blade 36 at cutting and a surface 22b to be cut from above the cutting clearance 46. COPYRIGHT: (C)2010,JPO&INPIT